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Azure redhat openshift

Skill MicrosoftDocs/Agent-Skills/skills/azure-redhat-openshift

Curated Agent Skills for Microsoft & Azure – giving AI coding assistants structured, real-time expertise from Microsoft Learn docs.

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npx -y skills add MicrosoftDocs/Agent-Skills --skill azure-redhat-openshift

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Expert knowledge for Azure Red Hat OpenShift development including troubleshooting, best practices, decision making, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when sizing ARO clusters, configuring networking/storage, securing with Entra/Front Door, or integrating GPUs/NetApp, and other Azure Red Hat OpenShift related development tasks. Not for Azure Kubernetes Service (AKS) (use azure-kubernetes-service), Azure Container Apps (use azure-container-apps), Azure Virtual Machines (use azure-virtual-machines), Azure Arc (use azure-arc).

SKILL.md

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Azure Red Hat OpenShift Skill

This skill provides expert guidance for Azure Red Hat OpenShift. Covers troubleshooting, best practices, decision making, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., [security.md](security.md)), use read_file on the linked reference file

IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

  • Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
  • Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

CategoryLinesDescription
TroubleshootingL36-L42Fixing common ARO cluster issues, restoring cluster access, and manually updating or troubleshooting cluster certificates and connectivity via CLI
Best PracticesL43-L50Guidance on sizing and configuring ARO clusters: infra nodes, large-cluster design, supported configs, and optimizing OpenShift Virtualization VM deployments.
Decision MakingL51-L55Defines the shared responsibility model for Azure Red Hat OpenShift, detailing which operational tasks are handled by Microsoft, Red Hat, and the customer.
Limits & QuotasL56-L61Scaling ARO clusters with multiple load balancer IPs, plus hard/soft service limits, quotas, and key terms that constrain cluster size and usage.
SecurityL62-L79Identity, access, disk encryption, network egress, workload/managed identities, FIPS, Lockbox, and securing ARO apps with Azure Front Door and Microsoft Entra.
ConfigurationL80-L98Cluster-level setup for ARO: registry, networking (proxy, DNS, MTU, endpoints), storage (Azure Files, Prometheus), node/subnet layout, Spot VMs, capacity reservations, tags, and pull secrets.
Integrations & Coding PatternsL99-L107Guides for integrating ARO with GPUs, Azure NetApp Files, Azure Monitor (Prometheus), Container Registry, and Key Vault secrets, including setup and configuration patterns.
DeploymentL108-L118Deploying and operating ARO clusters and apps: cluster creation (private/ARM/Bicep), upgrades, networking migration, backups/restores, and app runtimes (JBoss, WebSphere, S2I, serverless).

Troubleshooting

TopicURL
Regain ARO cluster access using Admin Kubeconfighttps://learn.microsoft.com/en-us/azure/openshift/howto-kubeconfig
Manually update ARO cluster certificates via CLIhttps://learn.microsoft.com/en-us/azure/openshift/howto-update-certificates
Troubleshoot common Azure Red Hat OpenShift cluster issueshttps://learn.microsoft.com/en-us/azure/openshift/troubleshoot

Best Practices

TopicURL
Optimize VM deployments on OpenShift Virtualization in AROhttps://learn.microsoft.com/en-us/azure/openshift/best-practices-openshift-virtualization
Deploy and size infrastructure nodes in AROhttps://learn.microsoft.com/en-us/azure/openshift/howto-infrastructure-nodes
Apply best practices for large ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-large-clusters
Follow supported configuration policies for ARO 4 clustershttps://learn.microsoft.com/en-us/azure/openshift/support-policies-v4

Decision Making

TopicURL
Understand responsibility matrix for ARO operationshttps://learn.microsoft.com/en-us/azure/openshift/responsibility-matrix

Limits & Quotas

TopicURL
Configure multiple load balancer IPs to scale ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-multiple-ips
Review Azure Red Hat OpenShift service limits and termshttps://learn.microsoft.com/en-us/azure/openshift/openshift-service-definitions

Security

TopicURL
Configure Microsoft Entra auth for ARO via CLIhttps://learn.microsoft.com/en-us/azure/openshift/configure-azure-ad-cli
Configure Microsoft Entra auth for ARO via portalhttps://learn.microsoft.com/en-us/azure/openshift/configure-azure-ad-ui
Use custom Network Security Groups with Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-bring-nsg
Encrypt ARO OS disks with customer-managed keyshttps://learn.microsoft.com/en-us/azure/openshift/howto-byok
Create service principal for Azure Red Hat OpenShift deploymenthttps://learn.microsoft.com/en-us/azure/openshift/howto-create-service-principal
Configure applications with ARO workload identityhttps://learn.microsoft.com/en-us/azure/openshift/howto-deploy-configure-application
Enable FIPS-compliant cryptography on Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-enable-fips-openshift
Reconcile federated identity credentials for ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-reconcile-federated-identity-credentials
Replace Azure Red Hat OpenShift cluster identitieshttps://learn.microsoft.com/en-us/azure/openshift/howto-replace-cluster-identity
Restrict and allow egress traffic for ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-restrict-egress
Secure Azure Red Hat OpenShift apps with Azure Front Doorhttps://learn.microsoft.com/en-us/azure/openshift/howto-secure-openshift-with-front-door
Rotate Microsoft Entra service principal credentials for AROhttps://learn.microsoft.com/en-us/azure/openshift/howto-service-principal-credential-rotation
Configure and use managed identities in Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-understand-managed-identities
Control Microsoft support access to ARO with Azure Lockboxhttps://learn.microsoft.com/en-us/azure/openshift/howto-use-lockbox

Configuration

TopicURL
Configure built-in container registry for Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/built-in-container-registry
Configure cluster-wide HTTP/HTTPS proxy in AROhttps://learn.microsoft.com/en-us/azure/openshift/cluster-wide-proxy-configure
Understand networking layout and endpoints for Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/concepts-networking
Set up DNS forwarding for Azure Red Hat OpenShift 4https://learn.microsoft.com/en-us/azure/openshift/dns-forwarding
Update Red Hat pull secret on Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-add-update-pull-secret
Configure capacity reservations with ARO machine setshttps://learn.microsoft.com/en-us/azure/openshift/howto-capacity-reservations
Enable jumbo MTU for ARO cluster networkshttps://learn.microsoft.com/en-us/azure/openshift/howto-change-maximum-transmission-unit
Configure Azure File StorageClass on ARO with managed identityhttps://learn.microsoft.com/en-us/azure/openshift/howto-configure-azure-file-storageclass
Create Azure Files storage class on ARO 4https://learn.microsoft.com/en-us/azure/openshift/howto-create-a-storageclass
Configure custom DNS resolvers for ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-custom-dns
Configure Azure Resource Health alerts for Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-monitor-alerts
Configure Prometheus persistent storage on ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-prometheus-persistence
Segregate ARO worker nodes into subnet groupshttps://learn.microsoft.com/en-us/azure/openshift/howto-segregate-machinesets
Configure Azure Spot VMs in ARO clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-spot-nodes
Tag ARO managed resources using Azure Policyhttps://learn.microsoft.com/en-us/azure/openshift/howto-tag-resources

Integrations & Coding Patterns

TopicURL
Run NVIDIA GPU workloads on Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-gpu-workloads
Configure Azure NetApp Files storage for AROhttps://learn.microsoft.com/en-us/azure/openshift/howto-netapp-files
Send ARO Prometheus metrics to Azure Monitor via remote writehttps://learn.microsoft.com/en-us/azure/openshift/howto-remotewrite-prometheus
Integrate Azure Container Registry with Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-use-acr-with-aro
Integrate Azure Key Vault secrets with Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-use-key-vault-secrets

Deployment

TopicURL
Back up Azure Red Hat OpenShift apps with Velerohttps://learn.microsoft.com/en-us/azure/openshift/howto-create-a-backup
Restore Azure Red Hat OpenShift apps with Velerohttps://learn.microsoft.com/en-us/azure/openshift/howto-create-a-restore
Create private Azure Red Hat OpenShift 4 clustershttps://learn.microsoft.com/en-us/azure/openshift/howto-create-private-cluster-4x
Deploy WebSphere Liberty on Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-deploy-java-liberty-app
Deploy applications from source to ARO using S2Ihttps://learn.microsoft.com/en-us/azure/openshift/howto-deploy-with-s2i
Deploy serverless applications on Azure Red Hat OpenShifthttps://learn.microsoft.com/en-us/azure/openshift/howto-deploy-with-serverless
Migrate ARO networking from OpenShift SDN to OVN-Kuberneteshttps://learn.microsoft.com/en-us/azure/openshift/howto-sdn-to-ovn
Deploy ARO clusters using ARM or Bicep templateshttps://learn.microsoft.com/en-us/azure/openshift/quickstart-openshift-arm-bicep-template

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