The basic idea I'd go is a simple git repo to store a big Helm chart containing all the settings. Automation is Key Only the latest versions of container images include all the available security fixes. Best ways to manage cluster wide configuration. Because Red Hat OpenShift initially deploys with three master nodes, it is ensured in a two-node configuration that at least two masters will occupy the same node, which can lead to a possible outage for OpenShift if that specific node becomes unavailable. Set up your CI pipeline to always pull the latest version of base images when building the application image. When its container is run in OpenShift, the container orchestrator will definitely run its processes as an arbitrary non-root user. Login in to the OpenShift via Bastion (jump) host OR Master node using OpenShift Container login. ```. Note that there is some overlap between the two categories. Cluster details. All commands from now on should be executed on the master, unless Best practices for DNS and certificate management. Best Practices Upgrading Cloud Agent Best Practices Here are some best practices for managing your cloud agents. A fully supported Red Hat OpenShift installation comes with an entitlement to Cloudformswhich can act as a single pane of glass for platform-level monitoring, telemetry, infrastructure / cloud metrics, as well as providing security policy for your containers via OpenSCAP (amongst other functions). CloudBees CI is a fully-featured, cloud native CD solution that can be hosted on-premise or in the public cloud. this is required by the installer to gain access to the machines. atomic-openshift-utils package. by default /etc/ansible/hosts. Allow all Deny all an entry like the following in your DNS server: When using OpenShift Container Platform to deploy applications, an internal router needs to proxy ```. It is a best practice to group many CRs into relatively few waves. All OpenShift users get the token from this server, which helps them communicate to OpenShift API. There are different kinds of authentication level in OpenShift, which can be configured along with the main configuration file. Bundled as the OpenShift CLI, you can Replace the string with the pool ID of the pool that provides Follow the prompts and just hit enter when asked for pass phrase. See the Deployment Best Practices General best practices when setting up an Istio service mesh. The below table is showing some of the most commonly used tags: The below table is showing some of the most . Conclusion When running oc adm commands, you should run them only from Use the latest version of base container images. Do not store application configuration inside a container If the container image contains configuration for a specific environment (Dev, QA, Prod), it will not work to transfer it between environments without changes. to larger node counts. Also, click the "Download pull secret" button to download the pull secret that we'll use later. each other. Extract the content of the zip file in any folder. Applications can run out of memory or incur CPU starvation due to improper configuration of requested resources. openshift-install create ignition-configs -dir=<installation_directory> Check the artifacts that are generated: Configuring Load Balancer and HTTP Server. 12. The build image contains build dependencies that are required for building the application but are not required for running the application. #1 Avoid unnecessary privileges These tips follow the principle of least privilege so your service or application only has access to the resources and information necessary to perform its purpose. Do not use them! There are images of unknown origin available in public registries like Docker Hub. May require in-depth knowledge of networking, computing platform, storage, database, security, middleware, network and systems management and related infrastructure technologies and practices; Added bonus if you have: A good understanding of Kubernetes and OpenShift is a plus; Payment experience a plus; Hands on experience with FIS products and . Recommended Practices for OpenShift Container Platform Node Hosts The OpenShift Container Platform node configuration file contains important options, such as the iptables synchronization period, the Maximum Transmission Unit (MTU) of the SDN network, and the proxy-mode. This guide uses master.openshift.example.com and node.openshift.example.com. This section compiles 9 best practices to help you improve app availability, uptime, and better user experience. Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. but the quiz says the answer is. Apply the following practices when installing large clusters or scaling clusters to larger node counts. Azure Red Hat OpenShift charges for the virtual machines (VMs) provisioned in the clusters and OpenShift licenses based on the VM instance selected. Learn more about OpenShift Container Platform, OpenShift Container Platform 4.9 release notes, Selecting an installation method and preparing a cluster, Mirroring images for a disconnected installation, Installing a cluster on AWS with customizations, Installing a cluster on AWS with network customizations, Installing a cluster on AWS in a restricted network, Installing a cluster on AWS into an existing VPC, Installing a cluster on AWS into a government or secret region, Installing a cluster on AWS into a China region, Installing a cluster on AWS using CloudFormation templates, Installing a cluster on AWS in a restricted network with user-provisioned infrastructure, Installing a cluster on Azure with customizations, Installing a cluster on Azure with network customizations, Installing a cluster on Azure into an existing VNet, Installing a cluster on Azure into a government region, Installing a cluster on Azure using ARM templates, Manually creating IAM for Azure Stack Hub, Installing a cluster on Azure Stack Hub using ARM templates, Installing a cluster on GCP with customizations, Installing a cluster on GCP with network customizations, Installing a cluster on GCP in a restricted network, Installing a cluster on GCP into an existing VPC, Installing a cluster on GCP using Deployment Manager templates, Installing a cluster into a shared VPC on GCP using Deployment Manager templates, Installing a cluster on GCP in a restricted network with user-provisioned infrastructure, Installing a user-provisioned cluster on bare metal, Installing a user-provisioned bare metal cluster with network customizations, Installing a user-provisioned bare metal cluster on a restricted network, Preparing to install OpenShift on a single node, Setting up the environment for an OpenShift installation, Preparing to install with z/VM on IBM Z and LinuxONE, Installing a cluster with z/VM on IBM Z and LinuxONE, Restricted network IBM Z installation with z/VM, Preparing to install with RHEL KVM on IBM Z and LinuxONE, Installing a cluster with RHEL KVM on IBM Z and LinuxONE, Restricted network IBM Z installation with RHEL KVM, Restricted network IBM Power installation, Installing a cluster on OpenStack with customizations, Installing a cluster on OpenStack with Kuryr, Installing a cluster that supports SR-IOV compute machines on OpenStack, Installing a cluster on OpenStack on your own infrastructure, Installing a cluster on OpenStack with Kuryr on your own infrastructure, Installing a cluster on OpenStack on your own SR-IOV infrastructure, Installing a cluster on OpenStack in a restricted network, Uninstalling a cluster on OpenStack from your own infrastructure, Installing a cluster on RHV with customizations, Installing a cluster on RHV with user-provisioned infrastructure, Installing a cluster on RHV in a restricted network, Installing a cluster on vSphere with customizations, Installing a cluster on vSphere with network customizations, Installing a cluster on vSphere with user-provisioned infrastructure, Installing a cluster on vSphere with user-provisioned infrastructure and network customizations, Installing a cluster on vSphere in a restricted network, Installing a cluster on vSphere in a restricted network with user-provisioned infrastructure, Uninstalling a cluster on vSphere that uses installer-provisioned infrastructure, Using the vSphere Problem Detector Operator, Installing a cluster on VMC with customizations, Installing a cluster on VMC with network customizations, Installing a cluster on VMC in a restricted network, Installing a cluster on VMC with user-provisioned infrastructure, Installing a cluster on VMC with user-provisioned infrastructure and network customizations, Installing a cluster on VMC in a restricted network with user-provisioned infrastructure, Converting a connected cluster to a disconnected cluster, Preparing to update to OpenShift Container Platform 4.9, Preparing to perform an EUS-to-EUS update, Performing update using canary rollout strategy, Updating a cluster that includes RHEL compute machines, Updating hardware on nodes running on vSphere, Showing data collected by remote health monitoring, Using Insights to identify issues with your cluster, Using remote health reporting in a restricted network, Importing simple content access certificates with Insights Operator, Troubleshooting CRI-O container runtime issues, Troubleshooting the Source-to-Image process, Troubleshooting Windows container workload issues, Extending the OpenShift CLI with plug-ins, OpenShift CLI developer command reference, OpenShift CLI administrator command reference, Knative CLI (kn) for use with OpenShift Serverless, Hardening Red Hat Enterprise Linux CoreOS, Replacing the default ingress certificate, Securing service traffic using service serving certificates, User-provided certificates for the API server, User-provided certificates for default ingress, Monitoring and cluster logging Operator component certificates, Retrieving Compliance Operator raw results, Performing advanced Compliance Operator tasks, Understanding the Custom Resource Definitions, Understanding the File Integrity Operator, Performing advanced File Integrity Operator tasks, Troubleshooting the File Integrity Operator, Allowing JavaScript-based access to the API server from additional hosts, Authentication and authorization overview, Understanding identity provider configuration, Configuring an htpasswd identity provider, Configuring a basic authentication identity provider, Configuring a request header identity provider, Configuring a GitHub or GitHub Enterprise identity provider, Configuring an OpenID Connect identity provider, Using RBAC to define and apply permissions, Understanding and creating service accounts, Using a service account as an OAuth client, Understanding the Cluster Network Operator, Defining a default network policy for projects, Removing a pod from an additional network, About Single Root I/O Virtualization (SR-IOV) hardware networks, Configuring an SR-IOV Ethernet network attachment, Configuring an SR-IOV InfiniBand network attachment, About the OpenShift SDN default CNI network provider, Configuring an egress firewall for a project, Removing an egress firewall from a project, Considerations for the use of an egress router pod, Deploying an egress router pod in redirect mode, Deploying an egress router pod in HTTP proxy mode, Deploying an egress router pod in DNS proxy mode, Configuring an egress router pod destination list from a config map, About the OVN-Kubernetes network provider, Migrating from the OpenShift SDN cluster network provider, Rolling back to the OpenShift SDN cluster network provider, Converting to IPv4/IPv6 dual stack networking, Configuring ingress cluster traffic using an Ingress Controller, Configuring ingress cluster traffic using a load balancer, Configuring ingress cluster traffic on AWS using a Network Load Balancer, Configuring ingress cluster traffic using a service external IP, Configuring ingress cluster traffic using a NodePort, Troubleshooting node network configuration, Associating secondary interfaces metrics to network attachments, Persistent storage using AWS Elastic Block Store, Persistent storage using GCE Persistent Disk, Persistent storage using Red Hat OpenShift Container Storage, AWS Elastic Block Store CSI Driver Operator, AWS Elastic File Service CSI Driver Operator, Red Hat Virtualization CSI Driver Operator, Image Registry Operator in OpenShift Container Platform, Configuring the registry for AWS user-provisioned infrastructure, Configuring the registry for GCP user-provisioned infrastructure, Configuring the registry for Azure user-provisioned infrastructure, Creating applications from installed Operators, Allowing non-cluster administrators to install Operators, Upgrading projects for newer Operator SDK versions, High-availability or single-node cluster detection and support, Configuring built-in monitoring with Prometheus, Migrating package manifest projects to bundle format, Setting up additional trusted certificate authorities for builds, Creating CI/CD solutions for applications using OpenShift Pipelines, Managing non-versioned and versioned cluster tasks, Using Tekton Hub with OpenShift Pipelines, Working with OpenShift Pipelines using the Developer perspective, Reducing resource consumption of OpenShift Pipelines, Setting compute resource quota for OpenShift Pipelines, Automatic pruning of task run and pipeline run, Using pods in a privileged security context, Authenticating pipelines using git secret, Using Tekton Chains for OpenShift Pipelines supply chain security, Viewing pipeline logs using the OpenShift Logging Operator, Configuring an OpenShift cluster by deploying an application with cluster configurations, Deploying a Spring Boot application with Argo CD, Configuring SSO for Argo CD using Keycloak, Running Control Plane Workloads on Infra nodes, Using the Cluster Samples Operator with an alternate registry, Using image streams with Kubernetes resources, Triggering updates on image stream changes, Creating applications using the Developer perspective, Viewing application composition using the Topology view, Getting started with service binding on IBM Power, IBM Z, and LinuxONE, Binding workloads using Service Binding Operator, Connecting an application to a service using the Developer perspective, Configuring custom Helm chart repositories, Understanding Deployments and DeploymentConfigs, Monitoring project and application metrics using the Developer perspective, Adding compute machines to user-provisioned infrastructure clusters, Adding compute machines to AWS using CloudFormation templates, Automatically scaling pods with the horizontal pod autoscaler, Automatically adjust pod resource levels with the vertical pod autoscaler, Using Device Manager to make devices available to nodes, Including pod priority in pod scheduling decisions, Placing pods on specific nodes using node selectors, Configuring the default scheduler to control pod placement, Scheduling pods using a scheduler profile, Placing pods relative to other pods using pod affinity and anti-affinity rules, Controlling pod placement on nodes using node affinity rules, Controlling pod placement using node taints, Controlling pod placement using pod topology spread constraints, Running background tasks on nodes automatically with daemonsets, Viewing and listing the nodes in your cluster, Managing the maximum number of pods per node, Remediating nodes with the Poison Pill Operator, Deploying node health checks by using the Node Health Check Operator, Freeing node resources using garbage collection, Allocating specific CPUs for nodes in a cluster, Configuring the TLS security profile for the kubelet, Using Init Containers to perform tasks before a pod is deployed, Allowing containers to consume API objects, Using port forwarding to access applications in a container, Viewing system event information in a cluster, Configuring cluster memory to meet container memory and risk requirements, Configuring your cluster to place pods on overcommited nodes, Using remote worker node at the network edge, Red Hat OpenShift support for Windows Containers overview, Red Hat OpenShift support for Windows Containers release notes, Understanding Windows container workloads, Creating a Windows MachineSet object on AWS, Creating a Windows MachineSet object on Azure, Creating a Windows MachineSet object on vSphere, Using Bring-Your-Own-Host Windows instances as nodes, OpenShift sandboxed containers release notes, Understanding OpenShift sandboxed containers, Deploying OpenShift sandboxed containers workloads, Uninstalling OpenShift sandboxed containers workloads, Collecting OpenShift sandboxed containers data for Red Hat Support, About the Cluster Logging custom resource, Configuring CPU and memory limits for Logging components, Using tolerations to control Logging pod placement, Moving the Logging resources with node selectors, Collecting logging data for Red Hat Support, Enabling monitoring for user-defined projects, Recommended host practices for IBM Z & LinuxONE environments, Planning your environment according to object maximums, What huge pages do and how they are consumed by apps, Performance Addon Operator for low latency nodes, Performing latency tests for platform verification, Deploying distributed units manually on single-node OpenShift, Workload partitioning on single-node OpenShift, Deploying distributed units at scale in a disconnected environment, About specialized hardware and driver enablement, Overview of backup and restore operations, Installing and configuring OADP with Azure, Advanced OADP features and functionalities, Recovering from expired control plane certificates, About migrating from OpenShift Container Platform 3 to 4, Differences between OpenShift Container Platform 3 and 4, Installing MTC in a restricted network environment, Editing kubelet log level verbosity and gathering logs, LocalResourceAccessReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.openshift.io/v1], ResourceAccessReview [authorization.openshift.io/v1], SelfSubjectRulesReview [authorization.openshift.io/v1], SubjectAccessReview [authorization.openshift.io/v1], SubjectRulesReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectRulesReview [authorization.k8s.io/v1], SubjectAccessReview [authorization.k8s.io/v1], ClusterAutoscaler [autoscaling.openshift.io/v1], MachineAutoscaler [autoscaling.openshift.io/v1beta1], HelmChartRepository [helm.openshift.io/v1beta1], ConsoleCLIDownload [console.openshift.io/v1], ConsoleExternalLogLink [console.openshift.io/v1], ConsoleNotification [console.openshift.io/v1], ConsolePlugin [console.openshift.io/v1alpha1], ConsoleQuickStart [console.openshift.io/v1], ConsoleYAMLSample [console.openshift.io/v1], CustomResourceDefinition [apiextensions.k8s.io/v1], MutatingWebhookConfiguration [admissionregistration.k8s.io/v1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], ContainerRuntimeConfig [machineconfiguration.openshift.io/v1], ControllerConfig [machineconfiguration.openshift.io/v1], KubeletConfig [machineconfiguration.openshift.io/v1], MachineConfigPool [machineconfiguration.openshift.io/v1], MachineConfig [machineconfiguration.openshift.io/v1], MachineHealthCheck [machine.openshift.io/v1beta1], MachineSet [machine.openshift.io/v1beta1], APIRequestCount [apiserver.openshift.io/v1], AlertmanagerConfig [monitoring.coreos.com/v1alpha1], PrometheusRule [monitoring.coreos.com/v1], ServiceMonitor [monitoring.coreos.com/v1], EgressNetworkPolicy [network.openshift.io/v1], EgressRouter [network.operator.openshift.io/v1], IPPool [whereabouts.cni.cncf.io/v1alpha1], NetworkAttachmentDefinition [k8s.cni.cncf.io/v1], PodNetworkConnectivityCheck [controlplane.operator.openshift.io/v1alpha1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], UserOAuthAccessToken [oauth.openshift.io/v1], Authentication [operator.openshift.io/v1], CloudCredential [operator.openshift.io/v1], ClusterCSIDriver [operator.openshift.io/v1], Config [imageregistry.operator.openshift.io/v1], Config [samples.operator.openshift.io/v1], CSISnapshotController [operator.openshift.io/v1], DNSRecord [ingress.operator.openshift.io/v1], ImageContentSourcePolicy [operator.openshift.io/v1alpha1], ImagePruner [imageregistry.operator.openshift.io/v1], IngressController [operator.openshift.io/v1], KubeControllerManager [operator.openshift.io/v1], KubeStorageVersionMigrator [operator.openshift.io/v1], OpenShiftAPIServer [operator.openshift.io/v1], OpenShiftControllerManager [operator.openshift.io/v1], OperatorPKI [network.operator.openshift.io/v1], CatalogSource [operators.coreos.com/v1alpha1], ClusterServiceVersion [operators.coreos.com/v1alpha1], InstallPlan [operators.coreos.com/v1alpha1], OperatorCondition [operators.coreos.com/v2], PackageManifest [packages.operators.coreos.com/v1], Subscription [operators.coreos.com/v1alpha1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], FlowSchema [flowcontrol.apiserver.k8s.io/v1beta1], PriorityLevelConfiguration [flowcontrol.apiserver.k8s.io/v1beta1], CertificateSigningRequest [certificates.k8s.io/v1], CredentialsRequest [cloudcredential.openshift.io/v1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], CSIStorageCapacity [storage.k8s.io/v1beta1], StorageVersionMigration [migration.k8s.io/v1alpha1], VolumeSnapshot [snapshot.storage.k8s.io/v1], VolumeSnapshotClass [snapshot.storage.k8s.io/v1], VolumeSnapshotContent [snapshot.storage.k8s.io/v1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping [user.openshift.io/v1], Configuring the distributed tracing platform, Configuring distributed tracing data collection, Preparing your cluster for OpenShift Virtualization, Specifying nodes for OpenShift Virtualization components, Installing OpenShift Virtualization using the web console, Installing OpenShift Virtualization using the CLI, Uninstalling OpenShift Virtualization using the web console, Uninstalling OpenShift Virtualization using the CLI, Additional security privileges granted for kubevirt-controller and virt-launcher, Triggering virtual machine failover by resolving a failed node, Installing the QEMU guest agent on virtual machines, Viewing the QEMU guest agent information for virtual machines, Managing config maps, secrets, and service accounts in virtual machines, Installing VirtIO driver on an existing Windows virtual machine, Installing VirtIO driver on a new Windows virtual machine, Working with resource quotas for virtual machines, Configuring PXE booting for virtual machines, Enabling dedicated resources for a virtual machine, Importing virtual machine images with data volumes, Importing virtual machine images into block storage with data volumes, Enabling user permissions to clone data volumes across namespaces, Cloning a virtual machine disk into a new data volume, Cloning a virtual machine by using a data volume template, Cloning a virtual machine disk into a new block storage data volume, Configuring the virtual machine for the default pod network, Creating a service to expose a virtual machine, Attaching a virtual machine to a Linux bridge network, Configuring IP addresses for virtual machines, Configuring an SR-IOV network device for virtual machines, Attaching a virtual machine to an SR-IOV network, Viewing the IP address of NICs on a virtual machine, Using a MAC address pool for virtual machines, Configuring local storage for virtual machines, Reserving PVC space for file system overhead, Configuring CDI to work with namespaces that have a compute resource quota, Uploading local disk images by using the web console, Uploading local disk images by using the virtctl tool, Uploading a local disk image to a block storage data volume, Moving a local virtual machine disk to a different node, Expanding virtual storage by adding blank disk images, Cloning a data volume using smart-cloning, Using container disks with virtual machines, Re-using statically provisioned persistent volumes, Enabling dedicated resources for a virtual machine template, Migrating a virtual machine instance to another node, Monitoring live migration of a virtual machine instance, Cancelling the live migration of a virtual machine instance, Configuring virtual machine eviction strategy, Managing node labeling for obsolete CPU models, Diagnosing data volumes using events and conditions, Viewing information about virtual machine workloads, Reviewing resource usage by virtual machines, OpenShift cluster monitoring, logging, and Telemetry, Installing the OpenShift Serverless Operator, Listing event sources and event source types, Serverless components in the Administrator perspective, Integrating Service Mesh with OpenShift Serverless, Cluster logging with OpenShift Serverless, Configuring JSON Web Token authentication for Knative services, Configuring a custom domain for a Knative service, Setting up OpenShift Serverless Functions, On-cluster function building and deploying, Function project configuration in func.yaml, Accessing secrets and config maps from functions, Integrating Serverless with the cost management service, Using NVIDIA GPU resources with serverless applications, Recommended practices for installing large scale clusters. OpenShift Container Platform install. This is also useful for machines that cannot access the registry for security You can interact with your OpenShift Container Platform instance from a remote system as well, Table of contents OpenShift best practices Topics on this page To deploy runtime security onto OpenShift, you must use a privileged user (a user in the system:cluster-admins Kubernetes group). Pipelining reduces the number of connections between control and target nodes, helping to improve installer performance. Click on the "Download CodeReady Containers" button. Apply the following practices when installing large clusters or scaling clusters If you are a developer that builds applications on top of OpenShift, this blog might be of interest to you. 10.128.0.0/10 to get to larger node counts beyond 500 nodes. OpenShift 4 was recently named a leading multicloud container platform by Forrester. atomic-openshift-*, iptables, and CRI-O or Docker. Parallel behavior can overwhelm a content source, such as your image registry or Once installed and started, before you add a new project, you need to set up To perform the installation, you should be knowledgeable in OpenShift and Helm. Pre-installing these It provides excellent integration with Jenkins to make incorporating CI/CD as simple as possible. you. OpenShift Container Platform provides two command line utilities to interact with it. With several different combinations available, this article provides best practices and our recommendations for installing Kasten K10 on OpenShift clusters. The experiment consists of lowering the scraping 14 Best Practices for Developing Applications on OpenShift, A Guide toIntegrating Red Hat OpenStack with Cisco ACI, OpenShift Monitoring stack: Playing with Prometheus Performance and Scraping Intervals. This is a hybrid role with 1-2 days a week onsite with full flexibility. While Kubernetes provides several capabilities that can help protect your workloads, it's up to you to use them to safeguard your cloud-native applications. When it starts, select the Course description. I didn't pay attention and wasted the better part of a day messing around with Ansible 2.7 madness. When you build an image on a Red Hat UBI that includes a language runtime, the user is already switched to a non-root user named default. Pre-existing Infrastructure . to tell the systems from where to get OpenShift Container Platform. OpenShift helps teams build with speed, agility, confidence, and choice. Upgrading Cloud Agent 1. oc: for normal project and application management. It must be set to 10.128.0.0/12 or here. As the admin user, implement a quota named review-quota on the schedule-review project. We freshly started an OKD4 cluster and want to start with good practices. To continue configuring your basic OpenShift Container Platform environment, follow the steps outlined in Configure OpenShift Container Platform. Once these are configured, use the following steps to set up a two-machine install. By default, when installed for the first time, there are no roles or user This can be done using the following commands if one has an active Red Hat subscription. underestimating the size can create problems with growing clusters. In this article, we will explore nine best practices for deploying highly available applications to OpenShift. Preparing to install OpenShift on a single node . If you are using OpenShift Container Platform 3.5 use rhel-7-server-ose-3.5-rpms. Because you need to provision machines as part of the OpenShift Container Platform cluster installation process, you cannot upgrade an OpenShift Container Platform 3 cluster to OpenShift Container Platform 4. They protect your application from getting overloaded (rate limiting, circuit breakers), and improve the performance when facing connectivity issues (timeouts, retries). installation over a lossy network connection. Ansible is useful for running parallel operations, meaning a fast and efficient installation. Finally, seeing as this post is about CI/CD best practices on OpenShift, OpenShift is Red Hat's platform-as-a-service (PaaS). operating system patches can help prevent this issue. You may have already enabled 9. There are two provisioning methods available to choose from. The OpenShift Container Platform install method uses Ansible. Double click on the crc-windows-amd64.msi file to launch the installation wizard. ssh_args = -o ControlMaster=auto -o ControlPersist=600s -o ServerAliveInterval=60 OpenShift, at a minimum, requires two load balancers: one to load balance the control plane (the control plane API endpoints) and one for the data plane (the application routers). next section, you will see how to create user accounts for accessing the So, #1.1 Rootless containers Our recent report highlighted that 58% of images are running the container entrypoint as root (UID 0). This section includes 5 best practices that will improve the security of your application. You will find reliability practices that, to some extent, improve security and vice versa. This practice includes watching for new versions of both the base image and any third-party tools you install. It is then easy to initialize the cluster and set up the cloud domain name system (DNS . . download OpenShift code-ready container. pipelining = True, OpenShift Container Platform 3.11 Release Notes, Installing a stand-alone deployment of OpenShift container image registry, Deploying a Registry on Existing Clusters, Configuring the HAProxy Router to Use the PROXY Protocol, Accessing and Configuring the Red Hat Registry, Loading the Default Image Streams and Templates, Configuring Authentication and User Agent, Using VMware vSphere volumes for persistent storage, Dynamic Provisioning and Creating Storage Classes, Enabling Controller-managed Attachment and Detachment, Complete Example Using GlusterFS for Dynamic Provisioning, Switching an Integrated OpenShift Container Registry to GlusterFS, Using StorageClasses for Dynamic Provisioning, Using StorageClasses for Existing Legacy Storage, Configuring Azure Blob Storage for Integrated Container Image Registry, Configuring Global Build Defaults and Overrides, Deploying External Persistent Volume Provisioners, Installing the Operator Framework (Technology Preview), Advanced Scheduling and Pod Affinity/Anti-affinity, Advanced Scheduling and Taints and Tolerations, Extending the Kubernetes API with Custom Resources, Assigning Unique External IPs for Ingress Traffic, Restricting Application Capabilities Using Seccomp, Encrypting traffic between nodes with IPsec, Configuring the cluster auto-scaler in AWS, Promoting Applications Across Environments, Creating an object from a custom resource definition, MutatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1beta1], LocalSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectRulesReview [authorization.k8s.io/v1], SubjectAccessReview [authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], LocalResourceAccessReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.openshift.io/v1], ResourceAccessReview [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], SelfSubjectRulesReview [authorization.openshift.io/v1], SubjectAccessReview [authorization.openshift.io/v1], SubjectRulesReview [authorization.openshift.io/v1], CertificateSigningRequest [certificates.k8s.io/v1beta1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], EgressNetworkPolicy [network.openshift.io/v1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], PriorityClass [scheduling.k8s.io/v1beta1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], VolumeAttachment [storage.k8s.io/v1beta1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping [user.openshift.io/v1], Container-native Virtualization Installation, Container-native Virtualization Users Guide, Container-native Virtualization Release Notes. Traffic Management Best Practices Configuration best practices to avoid networking or traffic management issues. Modify your container images to allow running under the restricted SCC. Protect the application with pod disruption budgets. These machines must be able to ping each other accessed when necessary, instead of a number of times per host during the 3. Wildcard DNS resolution that resolves your domain to the IP of the node. OpenShift Container Platform installer that is based on Ansible. run the following command. $ istioctl install --set profile=openshift After installation is complete, expose an OpenShift route for the ingress gateway. Alerting based on the content of the application logs helps ensure that the application is performing as expected. With automated full-stack installation, seamless Kuberenetes deployments across clouds, automatic resource scaling, one-click updates, and enhanced developer tools and services, OpenShift 4 is designed for Hybrid Cloud. 4. Application monitoring and alerting are essential for keeping the application operating well in production and serving the business purpose. Breaking OpenShift: Best practices for managing users and projects in an OpenShift cluster. OpenShift Container Platform. console. Optimization topic for recommended network subnetting practices. Configuring After a successful install, use the following command to start OpenShift Container Platform. right pod. Container images that include environment-specific configuration cannot be promoted across environments (Dev, QA, Prod). [ssh_connection] 20 forks is ideal, because larger forks can lead to installations failing. It is also available in the bastion host and the location is displayed after a successful installation. Implement application monitoring and alerting. These RHEL systems are now authorized to install OpenShift Container Platform. Ansible section for a list of available Ansible configuration options. Best Practices for Designing Components Pipeline Parameters Visualize Results in the Pipelines UI Pipeline Metrics DSL Static Type Checking DSL Recursion Using environment variables in pipelines GCP-specific Uses of the SDK Kubeflow Pipelines SDK for Tekton Manipulate Kubernetes Resources as Part of a Pipeline Today we're going to talk about the easier way to install and maintain Ansible inside Fedora 37 using the system repository. Red Hat and VMware have been technology partners for years. Instead, you must create a new OpenShift Container Platform 4 cluster and migrate your OpenShift Container Platform 3 workloads to them. This guide introduces you to the basic concepts of OpenShift Container Platform, and helps Application Security This section includes 5 best practices that will improve the security of your application. Step 1 First install Linux on both the machines, where the Linux 7 should be the least version. The Istio sidecar injected into each application pod runs with user ID 1337, which is not allowed . Now we need the Ansible is useful for running This can be done using the following commands if one has an active Red Hat subscription. How to install Ansible in Fedora version 37. It's no wonder. I am using a separate virtual machine instance to be used as load . Today we're talking about How to install Ansible in Fedora 37. I did. Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. OpenShift Container Platform 3.6 Release Notes, Installing a Stand-alone Deployment of OpenShift Container Registry, Deploying a Registry on Existing Clusters, Configuring the HAProxy Router to Use the PROXY Protocol, Loading the Default Image Streams and Templates, Configuring Authentication and User Agent, Using VMware vSphere volumes for persistent storage, Dynamic Provisioning and Creating Storage Classes, Enabling Controller-managed Attachment and Detachment, Dynamic Provisioning Example Using Containerized GlusterFS, Dynamic Provisioning Example Using Dedicated GlusterFS, Containerized Heketi for Managing Dedicated GlusterFS, Backing Docker Registry with GlusterFS Storage, Using StorageClasses for Dynamic Provisioning, Using StorageClasses for Existing Legacy Storage, Configuring Azure Blob Storage for Integrated Docker Registry, Configuring Global Build Defaults and Overrides, Deploying External Persistent Volume Provisioners, Advanced Scheduling and Pod Affinity/Anti-affinity, Advanced Scheduling and Taints and Tolerations, Assigning Unique External IPs for Ingress Traffic, Restricting Application Capabilities Using Seccomp, Promoting Applications Across Environments, Injecting Information into Pods Using Pod Presets, Attach OpenShift Container Platform Subscription, Install the OpenShift Container Platform Package, Interact with OpenShift Container Platform, At the step where the installer asks you for the FQDN for the routes, Stick to the restricted security context constraint where possible. This guide is OpenShift Container Platform will be available from these repositories. In this post I will list some best practices for deploy CPD 3.0.1 on OCP 4.3. The three most important of those are: Providing immediate feedback. performance and scaling, including using RHEL 6.6 or later to ensure the purposes. The pool ID is a long alphanumeric string. OpenShift will collect those logs and send them to a centralized location (ELK, Splunk). To configure your nodes, modify the appropriate node configuration map. 14. With Red Hat OpenShift 4, Red Hat completely re-architected how developers install, upgrade, and manage OpenShift to develop applications on Kubernetes.Under the hood, the installation process uses the OpenShift installer to automate container host provisioning using Red Hat Enterprise Linux (RHEL) CoreOS. Protect the communication between application components using TLS. Red Hat OpenShift Installation Lab (DO322) teaches essential skills for installing an OpenShift cluster in a range of environments, from proof of concept to production, and how to identify customizations that may be required because of the underlying cloud, virtual, or physical infrastructure. control_path = %(directory)s/%%h-%%r Now, Red Hat delivers full stack automation of vSphere deployments with OpenShift 4.5. otherwise indicated. Run the installer from the lowest-possible latency control node (LAN speeds). as mentioned at the start of this section, master.openshift.example.com and Click Next. OpenShift and Kasten K10 are both very adaptable products that can be installed in various conditions ranging from air-gapped on-premise infrastructure to full-public cloud deployments. OpenShift Container Platform (OCP) 3.7 is built on Kubernetes 1.7, OCP 3.8 -> Kube 1.8, and OCP 3.11 -> Kube 1.11. option to either create new roles or define a policy that allows anyone to log I strongly recommend that you consider implementing all of these practices in your environment. Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. the node, after running yum update. And we will see the creation of the disc in OpenShift: Persistent Disk OpenShift In the configured Datastore: First Class Disks Details Now we will eliminate the disk to validate the correct operation: Remove Persistent Disk confirmation in OpenShift: Delete Confirmation in vCenter: Default StorageClass setting 7. My goal was to provide the developers with guidance and best practices that would help them to successfully deploy their applications to production. There are situations where the application pods need to be evicted from the cluster node. hwlatdetect: test duration 3600 seconds detector: tracer parameters: Latency threshold: 10us Sample window . 1: Multiple replicas Running more than one instance of your pods ensures that deleting a single pod will not cause downtime. On the master, When installing large clusters or scaling the cluster to larger node counts, set the cluster network cidr accordingly in your install-config.yaml file before you install the cluster: networking: clusterNetwork: - cidr: 10.128../14 hostPrefix: 23 machineCIDR: 10.0.0.0/16 networkType: OpenShiftSDN serviceNetwork: - 172.30../16 MAKE SURE you use Ansible version 2.6. using these command line utilities. The web console is available at https://:8443/console. option for OpenShift Container Platform. There is no password for this system account. The design team for the OpenShift developer perspective took what we believed are the most relevant insights and used them as a baseline for creating the interactions found today in the topology view. guidance for names (either real world or within a network) and password-less SSH access to In addition, you can use the web console to manage projects and applications. Running over a wide area network (WAN) is not advised, neither is running the that are necessary in order to install OpenShift Container Platform. In most cases, you want the default options. At this step, it is possible to select the SNO installation and change the pull secret if necessary. incoming requests to the corresponding application pod. This install process takes approximately 5-10 minutes. It is much steps. node.openshift.example.com. 6.Architect, design, implement, and integrate Red Hat container and infrastructure technologies, primarily Red Hat OpenShift Container Platform, Red Hat Ansible Automation Platform 7.Promote the adoption of automation techniques and DevSecOps practices to improve the infrastructure and software life cycle including infrastructure and . Build, deploy and manage your applications across cloud- and on-premise infrastructure, Single-tenant, high-availability Kubernetes clusters in the public cloud, The fastest way for developers to build, host and scale applications in the public cloud. Use oc --help and oc adm --help to view all available options. Developers. On both master and node, use subscription-manager to enable the repositories $ oc -n istio-system expose svc/istio-ingressgateway --port=http2 Security context constraints for application sidecars. Now you need Presents implementation approach to peers and manager prior to coding an implementation. Creating a separate runtime image with minimum dependencies reduces the attack surface and produces a smaller runtime image. To check the default wave value in each source CR, . This guide uses master.openshift.example.com and Deploy a cluster using on-demand pricing or purchase OpenShift worker node reserved instances, whichever best meets the needs of your workload and business. dependencies, creates a more efficient install, because the RPMs are only oc create quota review-quota --hard limits.cpu="1",limits.memory="2Gi",pods="20". Preparing your servers infrastructure pods and To achieve a reliable release process, the same image that was tested in the lower environments should be deployed into production. the first two repositories in this example. 8. accounts created in OpenShift Container Platform, so you need to create them. easier to consider the network subnet size prior to installation, because set the cluster network cidr accordingly in your install-config.yaml Prisma Cloud Defenders Helm charts fail to install on OpenShift 4 clusters due to a Helm bug. However, these 5. Consider leveraging OpenShift Service Mesh to offload the TLS management from the application. to larger node counts. Ready status. In the If using community-supported images, use only the images provided by the communities that you trust. In this tutorial we will play with some Prometheus configurations in an attempt to get better performance from the OpenShift Monitoring stack. Foundations of OpenShift The installer for OpenShift Container Platform is provided by the When installing large clusters or scaling the cluster to larger node counts, Maintain compatibility with proper tags. See the Configuring Ansible section for a list of available Ansible configuration options. This allows for restarting the pod without end-users noticing, for example when a new version of the application is deployed. 2 Hours | 4 learning resources. 13. Abstract. Designing a developer-friendly fail-soft approach. It provides a shared, centrally managed, self-service experience . See also. can be improved upon with additional tuning options. size is more than 500 nodes. The first category lists practices that increase application reliability, the second category includes practices that improve security. you install a basic application. and administration that incorporates the recommendations documented by Ansible: Network subnets can be changed post-install, but with difficulty. This is an interactive install process that guides you through the various Red Hat Satellite server. Recommended practices for installing large scale clusters When installing large clusters or scaling the cluster to larger node counts, set the cluster network cidr accordingly in your install-config.yaml file before you install the cluster: Now that we have an understanding of the key terminology, let's dive into some best practices. subscription-manager to register the systems with Red Hat. Red Hat OpenShift offers automated installation, upgrades, and lifecycle management throughout the container stackthe operating system, Kubernetes and cluster services, and applications on any cloud. Best practice #3: Set group ownership and file permissions By logging in at least one time with this account, you will create the On ROSA, this is usually the cluster-admin user. Complete the Cluster name, Base Domain and choose OpenShift version. Use monitoring tools like Prometheus & Grafana to monitor your application. For example, the eviction is needed before the administrator can perform maintenance of the node or before the cluster autoscaler can remove the node from the cluster while downscaling. Find the pool ID that provides OpenShift Container Platform subscription and attach it. However, these can be improved upon with additional tuning options. Ales Nosek. Installing OpenShift on a cloud, virtual, or physical infrastructure. See the Login to RedHat Hybrid Cloud Console. It allows the cluster to restart your application (liveness probe failed), or avoid routing traffic to your application if it's not ready to serve requests (readiness probe). Before you do anything else, log in at least one time with the default Ansible provides its own basic authentication, user access, and routes. To install OpenShift Container Platform, you will need: At least two physical or virtual RHEL 7+ machines, with fully qualified domain The following 9 best practices increase application availability, uptime, and overall improve the application user experience. Click Create cluster to start the process. If you weren't able to attend every single talk at KubeCon Detroit, you've still got a saving grace: YouTube. In this blog, we reviewed 14 best practices that can help you build more reliable and secure applications on OpenShift. This guide shows you how to install CloudBees CI on modern cloud platforms on OpenShift. Before running the installer on the master, set up password-less SSH access as In OpenShift master, there is a built-in OAuth server, which can be used for managing authentication. Configure the applications to write their logs to stdout/stderr. If you are using OpenShift Container Platform 3.4 use rhel-7-server-ose-3.4-rpms. . Storage limits for audits and reports. To ensure that your application remains available when pods need to be evicted, you must define the respective PodDistruptionBudget objects. Consider implementing the following resiliency measures: The listed resiliency measures make your application perform better in the case of failures. Developers can use this list to derive their own list of mandatory practices that must be followed by all the team members. become = False ```. OpenShift Container Platform 4.6 release notes, Mirroring images for a disconnected installation, Installing a cluster on AWS with customizations, Installing a cluster on AWS with network customizations, Installing a cluster on AWS in a restricted network, Installing a cluster on AWS into an existing VPC, Installing a cluster on AWS into a government region, Installing a cluster on AWS using CloudFormation templates, Installing a cluster on AWS in a restricted network with user-provisioned infrastructure, Installing a cluster on Azure with customizations, Installing a cluster on Azure with network customizations, Installing a cluster on Azure into an existing VNet, Installing a cluster on Azure into a government region, Installing a cluster on Azure using ARM templates, Installing a cluster on GCP with customizations, Installing a cluster on GCP with network customizations, Installing a cluster on GCP in a restricted network, Installing a cluster on GCP into an existing VPC, Installing a cluster on GCP using Deployment Manager templates, Installing a cluster into a shared VPC on GCP using Deployment Manager templates, Installing a cluster on GCP in a restricted network with user-provisioned infrastructure, Installing a cluster on bare metal with network customizations, Restricted network bare metal installation, Setting up the environment for an OpenShift installation, Installing a cluster on IBM Z and LinuxONE, Installing a cluster on IBM Power Systems, Restricted network IBM Power Systems installation, Installing a cluster on OpenStack with customizations, Installing a cluster on OpenStack with Kuryr, Installing a cluster on OpenStack on your own infrastructure, Installing a cluster on OpenStack with Kuryr on your own infrastructure, Installing a cluster on OpenStack in a restricted network, Uninstalling a cluster on OpenStack from your own infrastructure, Installing a cluster on RHV with customizations, Installing a cluster on RHV with user-provisioned infrastructure, Installing a cluster on vSphere with customizations, Installing a cluster on vSphere with network customizations, Installing a cluster on vSphere with user-provisioned infrastructure, Installing a cluster on vSphere with user-provisioned infrastructure and network customizations, Installing a cluster on vSphere in a restricted network, Installing a cluster on vSphere in a restricted network with user-provisioned infrastructure, Uninstalling a cluster on vSphere that uses installer-provisioned infrastructure, Installing a cluster on VMC with customizations, Installing a cluster on VMC with network customizations, Installing a cluster on VMC in a restricted network, Installing a cluster on VMC with user-provisioned infrastructure, Installing a cluster on VMC with user-provisioned infrastructure and network customizations, Installing a cluster on VMC in a restricted network with user-provisioned infrastructure, Supported installation methods for different platforms, Understanding the OpenShift Update Service, Installing and configuring the OpenShift Update Service, Updating a cluster that includes RHEL compute machines, Showing data collected by remote health monitoring, Using Insights to identify issues with your cluster, Using remote health reporting in a restricted network, Troubleshooting CRI-O container runtime issues, Troubleshooting the Source-to-Image process, Troubleshooting Windows container workload issues, Extending the OpenShift CLI with plug-ins, Configuring custom Helm chart repositories, Knative CLI (kn) for use with OpenShift Serverless, Hardening Red Hat Enterprise Linux CoreOS, Replacing the default ingress certificate, Securing service traffic using service serving certificates, User-provided certificates for the API server, User-provided certificates for default ingress, Monitoring and cluster logging Operator component certificates, Retrieving Compliance Operator raw results, Performing advanced Compliance Operator tasks, Understanding the Custom Resource Definitions, Understanding the File Integrity Operator, Performing advanced File Integrity Operator tasks, Troubleshooting the File Integrity Operator, Allowing JavaScript-based access to the API server from additional hosts, Authentication and authorization overview, Understanding identity provider configuration, Configuring an HTPasswd identity provider, Configuring a basic authentication identity provider, Configuring a request header identity provider, Configuring a GitHub or GitHub Enterprise identity provider, Configuring an OpenID Connect identity provider, Using RBAC to define and apply permissions, Understanding and creating service accounts, Using a service account as an OAuth client, Understanding the Cluster Network Operator, Defining a default network policy for projects, Removing a pod from an additional network, About Single Root I/O Virtualization (SR-IOV) hardware networks, Configuring an SR-IOV Ethernet network attachment, Configuring an SR-IOV InfiniBand network attachment, About the OpenShift SDN default CNI network provider, Configuring an egress firewall for a project, Removing an egress firewall from a project, Considerations for the use of an egress router pod, Deploying an egress router pod in redirect mode, Deploying an egress router pod in HTTP proxy mode, Deploying an egress router pod in DNS proxy mode, Configuring an egress router pod destination list from a config map, About the OVN-Kubernetes network provider, Migrating from the OpenShift SDN cluster network provider, Rolling back to the OpenShift SDN cluster network provider, Configuring ingress cluster traffic using an Ingress Controller, Configuring ingress cluster traffic using a load balancer, Configuring ingress cluster traffic on AWS using a Network Load Balancer, Configuring ingress cluster traffic using a service external IP, Configuring ingress cluster traffic using a NodePort, Associating secondary interfaces metrics to network attachments, Persistent storage using AWS Elastic Block Store, Persistent storage using GCE Persistent Disk, Persistent storage using Red Hat OpenShift Container Storage, AWS Elastic Block Store CSI Driver Operator, Red Hat Virtualization (oVirt) CSI Driver Operator, Image Registry Operator in OpenShift Container Platform, Configuring the registry for AWS user-provisioned infrastructure, Configuring the registry for GCP user-provisioned infrastructure, Configuring the registry for Azure user-provisioned infrastructure, Creating applications from installed Operators, Allowing non-cluster administrators to install Operators, Generating a cluster service version (CSV), Configuring built-in monitoring with Prometheus, Setting up additional trusted certificate authorities for builds, Creating CI/CD solutions for applications using OpenShift Pipelines, Working with Pipelines using the Developer perspective, Using the Cluster Samples Operator with an alternate registry, Using image streams with Kubernetes resources, Triggering updates on image stream changes, Creating applications using the Developer perspective, Viewing application composition using the Topology view, Working with Helm charts using the Developer perspective, Understanding Deployments and DeploymentConfigs, Monitoring project and application metrics using the Developer perspective, Adding compute machines to user-provisioned infrastructure clusters, Adding compute machines to AWS using CloudFormation templates, Automatically scaling pods with the horizontal pod autoscaler, Automatically adjust pod resource levels with the vertical pod autoscaler, Using Device Manager to make devices available to nodes, Including pod priority in pod scheduling decisions, Placing pods on specific nodes using node selectors, Configuring the default scheduler to control pod placement, Placing pods relative to other pods using pod affinity and anti-affinity rules, Controlling pod placement on nodes using node affinity rules, Controlling pod placement using node taints, Controlling pod placement using pod topology spread constraints, Running background tasks on nodes automatically with daemonsets, Viewing and listing the nodes in your cluster, Managing the maximum number of pods per node, Freeing node resources using garbage collection, Allocating specific CPUs for nodes in a cluster, Using Init Containers to perform tasks before a pod is deployed, Allowing containers to consume API objects, Using port forwarding to access applications in a container, Viewing system event information in a cluster, Configuring cluster memory to meet container memory and risk requirements, Configuring your cluster to place pods on overcommited nodes, Using remote worker node at the network edge, Red Hat OpenShift support for Windows Containers overview, Red Hat OpenShift support for Windows Containers release notes, Understanding Windows container workloads, Creating a Windows MachineSet object on AWS, Creating a Windows MachineSet object on Azure, About the Cluster Logging custom resource, Configuring CPU and memory limits for cluster logging components, Using tolerations to control cluster logging pod placement, Moving the cluster logging resources with node selectors, Configuring systemd-journald for cluster logging, Collecting logging data for Red Hat Support, Enabling monitoring for user-defined projects, Exposing custom application metrics for autoscaling, Planning your environment according to object maximums, What huge pages do and how they are consumed by apps, Performance Addon Operator for low latency nodes, Optimizing data plane performance with Intel devices, Overview of backup and restore operations, Installing and configuring OADP with Azure, Recovering from expired control plane certificates, About migrating from OpenShift Container Platform 3 to 4, Differences between OpenShift Container Platform 3 and 4, Installing MTC in a restricted network environment, Migration toolkit for containers overview, Editing kubelet log level verbosity and gathering logs, LocalResourceAccessReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.openshift.io/v1], ResourceAccessReview [authorization.openshift.io/v1], SelfSubjectRulesReview [authorization.openshift.io/v1], SubjectAccessReview [authorization.openshift.io/v1], SubjectRulesReview [authorization.openshift.io/v1], LocalSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectAccessReview [authorization.k8s.io/v1], SelfSubjectRulesReview [authorization.k8s.io/v1], SubjectAccessReview [authorization.k8s.io/v1], ClusterAutoscaler [autoscaling.openshift.io/v1], MachineAutoscaler [autoscaling.openshift.io/v1beta1], HelmChartRepository [helm.openshift.io/v1beta1], ConsoleCLIDownload [console.openshift.io/v1], ConsoleExternalLogLink [console.openshift.io/v1], ConsoleNotification [console.openshift.io/v1], ConsoleYAMLSample [console.openshift.io/v1], CustomResourceDefinition [apiextensions.k8s.io/v1], MutatingWebhookConfiguration [admissionregistration.k8s.io/v1], ValidatingWebhookConfiguration [admissionregistration.k8s.io/v1], ImageStreamImport [image.openshift.io/v1], ImageStreamMapping [image.openshift.io/v1], ContainerRuntimeConfig [machineconfiguration.openshift.io/v1], ControllerConfig [machineconfiguration.openshift.io/v1], KubeletConfig [machineconfiguration.openshift.io/v1], MachineConfigPool [machineconfiguration.openshift.io/v1], MachineConfig [machineconfiguration.openshift.io/v1], MachineHealthCheck [machine.openshift.io/v1beta1], MachineSet [machine.openshift.io/v1beta1], PrometheusRule [monitoring.coreos.com/v1], ServiceMonitor [monitoring.coreos.com/v1], EgressNetworkPolicy [network.openshift.io/v1], IPPool [whereabouts.cni.cncf.io/v1alpha1], NetworkAttachmentDefinition [k8s.cni.cncf.io/v1], OAuthAuthorizeToken [oauth.openshift.io/v1], OAuthClientAuthorization [oauth.openshift.io/v1], Authentication [operator.openshift.io/v1], CloudCredential [operator.openshift.io/v1], ClusterCSIDriver [operator.openshift.io/v1], Config [imageregistry.operator.openshift.io/v1], Config [samples.operator.openshift.io/v1], CSISnapshotController [operator.openshift.io/v1], DNSRecord [ingress.operator.openshift.io/v1], ImageContentSourcePolicy [operator.openshift.io/v1alpha1], ImagePruner [imageregistry.operator.openshift.io/v1], IngressController [operator.openshift.io/v1], KubeControllerManager [operator.openshift.io/v1], KubeStorageVersionMigrator [operator.openshift.io/v1], OpenShiftAPIServer [operator.openshift.io/v1], OpenShiftControllerManager [operator.openshift.io/v1], OperatorPKI [network.operator.openshift.io/v1], CatalogSource [operators.coreos.com/v1alpha1], ClusterServiceVersion [operators.coreos.com/v1alpha1], InstallPlan [operators.coreos.com/v1alpha1], PackageManifest [packages.operators.coreos.com/v1], Subscription [operators.coreos.com/v1alpha1], ClusterRoleBinding [rbac.authorization.k8s.io/v1], ClusterRole [rbac.authorization.k8s.io/v1], RoleBinding [rbac.authorization.k8s.io/v1], ClusterRoleBinding [authorization.openshift.io/v1], ClusterRole [authorization.openshift.io/v1], RoleBindingRestriction [authorization.openshift.io/v1], RoleBinding [authorization.openshift.io/v1], AppliedClusterResourceQuota [quota.openshift.io/v1], ClusterResourceQuota [quota.openshift.io/v1], FlowSchema [flowcontrol.apiserver.k8s.io/v1alpha1], PriorityLevelConfiguration [flowcontrol.apiserver.k8s.io/v1alpha1], CertificateSigningRequest [certificates.k8s.io/v1], CredentialsRequest [cloudcredential.openshift.io/v1], PodSecurityPolicyReview [security.openshift.io/v1], PodSecurityPolicySelfSubjectReview [security.openshift.io/v1], PodSecurityPolicySubjectReview [security.openshift.io/v1], RangeAllocation [security.openshift.io/v1], SecurityContextConstraints [security.openshift.io/v1], StorageVersionMigration [migration.k8s.io/v1alpha1], VolumeSnapshot [snapshot.storage.k8s.io/v1beta1], VolumeSnapshotClass [snapshot.storage.k8s.io/v1beta1], VolumeSnapshotContent [snapshot.storage.k8s.io/v1beta1], BrokerTemplateInstance [template.openshift.io/v1], TemplateInstance [template.openshift.io/v1], UserIdentityMapping [user.openshift.io/v1], Configuring the distributed tracing platform, Configuring distributed tracing data collection, Preparing your cluster for OpenShift Virtualization, Installing OpenShift Virtualization using the web console, Installing OpenShift Virtualization using the CLI, Uninstalling OpenShift Virtualization using the web console, Uninstalling OpenShift Virtualization using the CLI, Additional security privileges granted for kubevirt-controller and virt-launcher, Triggering virtual machine failover by resolving a failed node, Installing the QEMU guest agent on virtual machines, Viewing the QEMU guest agent information for virtual machines, Managing config maps, secrets, and service accounts in virtual machines, Installing VirtIO driver on an existing Windows virtual machine, Installing VirtIO driver on a new Windows virtual machine, Configuring PXE booting for virtual machines, Enabling dedicated resources for a virtual machine, Importing virtual machine images with data volumes, Importing virtual machine images into block storage with data volumes, Importing a Red Hat Virtualization virtual machine, Importing a VMware virtual machine or template, Enabling user permissions to clone data volumes across namespaces, Cloning a virtual machine disk into a new data volume, Cloning a virtual machine by using a data volume template, Cloning a virtual machine disk into a new block storage data volume, Configuring the virtual machine for the default pod network, Attaching a virtual machine to a Linux bridge network, Configuring IP addresses for virtual machines, Configuring an SR-IOV network device for virtual machines, Attaching a virtual machine to an SR-IOV network, Viewing the IP address of NICs on a virtual machine, Using a MAC address pool for virtual machines, Configuring local storage for virtual machines, Configuring CDI to work with namespaces that have a compute resource quota, Uploading local disk images by using the web console, Uploading local disk images by using the virtctl tool, Uploading a local disk image to a block storage data volume, Managing offline virtual machine snapshots, Moving a local virtual machine disk to a different node, Expanding virtual storage by adding blank disk images, Cloning a data volume using smart-cloning, Using container disks with virtual machines, Re-using statically provisioned persistent volumes, Enabling dedicated resources for a virtual machine template, Migrating a virtual machine instance to another node, Monitoring live migration of a virtual machine instance, Cancelling the live migration of a virtual machine instance, Configuring virtual machine eviction strategy, Managing node labeling for obsolete CPU models, Troubleshooting node network configuration, Diagnosing data volumes using events and conditions, Viewing information about virtual machine workloads, OpenShift cluster monitoring, logging, and Telemetry, Installing the OpenShift Serverless Operator, Listing event sources and event source types, Serverless components in the Administrator perspective, Integrating Service Mesh with OpenShift Serverless, Cluster logging with OpenShift Serverless, Configuring JSON Web Token authentication for Knative services, Configuring a custom domain for a Knative service, Setting up OpenShift Serverless Functions, On-cluster function building and deploying, Function project configuration in func.yaml, Accessing secrets and config maps from functions, Integrating Serverless with the cost management service, Using NVIDIA GPU resources with serverless applications, Recommended practices for installing large scale clusters. 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