azure-container-apps

# Azure Container Apps Skill

This skill provides expert guidance for Azure Container Apps. Covers troubleshooting, best practices, decision making, architecture & design patterns, 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](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)

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

| Category | Lines | Description |
|----------|-------|-------------|
| Troubleshooting | L37-L51 | Diagnosing and fixing Container Apps issues like start/exit failures, image pulls, health probes, storage mounts, ports, runtime errors, Java log levels, MCP server problems, and using the debug console |
| Best Practices | L52-L58 | Deployment, cold-start, and runtime tuning guidance: blue-green rollouts, reducing scale-out latency, and optimizing Java memory usage in Azure Container Apps. |
| Decision Making | L59-L80 | Guidance on choosing Container Apps hosting, plans, GPUs, and workload profiles, plus cost planning and migration paths from Functions, Heroku, Java/Spring/Tomcat, and legacy environments. |
| Architecture & Design Patterns | L81-L87 | Architectures and patterns for Java microservices on Azure Container Apps, including Eureka HA clusters, AI-enabled PetClinic, and end-to-end microservice design best practices. |
| Limits & Quotas | L88-L94 | Limits, quotas, and default behaviors for Container Apps (including express preview), plus how to review current limits and request quota increases. |
| Security | L95-L134 | Securing Container Apps: auth (Entra, social, OIDC, mTLS, certs), identities/secrets, network controls (NSG, firewall, private endpoints), and policy/best-practice hardening. |
| Configuration | L135-L175 | Configuring Container Apps environments and apps: networking, ingress, scaling (KEDA/Dapr/Functions), revisions/traffic, workload profiles, storage, Java features, logging, and maintenance. |
| Integrations & Coding Patterns | L176-L203 | Patterns for connecting Container Apps to other services: microservice calls, Dapr, Spring components, Front Door/Private Link, OpenTelemetry exports, and AI code interpreter/dynamic sessions. |
| Deployment | L204-L212 | Deploying and automating Container Apps: CI/CD with GitHub Actions/Azure Pipelines, Docker Compose migration, self-hosted runners, and Arc-enabled Kubernetes integration. |

### Troubleshooting
| Topic | URL |
|-------|-----|
| Use Container Apps debug console for in-place troubleshooting | https://learn.microsoft.com/en-us/azure/container-apps/container-debug-console |
| Use dynamic log levels to troubleshoot Java apps on Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/java-dynamic-log-level |
| Troubleshoot MCP server issues on Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/mcp-troubleshooting |
| Diagnose container exit failures in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-container-create-failures |
| Troubleshoot container start failures in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-container-start-failures |
| Troubleshoot health probe failures in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-health-probe-failures |
| Diagnose and fix image pull failures in Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-image-pull-failures |
| Resolve OCI runtime errors in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-open-container-initiative-errors |
| Fix storage mount failures in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-storage-mount-failures |
| Resolve target port misconfiguration in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/troubleshoot-target-port-settings |
| Diagnose and fix Azure Container Apps runtime issues | https://learn.microsoft.com/en-us/azure/container-apps/troubleshooting |

### Best Practices
| Topic | URL |
|-------|-----|
| Implement blue-green deployments in Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/blue-green-deployment |
| Apply cold-start reduction best practices in Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/cold-start |
| Optimize Java memory usage in Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/java-memory-fit |

### Decision Making
| Topic | URL |
|-------|-----|
| Understand billing and cost calculation for Azure Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/billing |
| Select code-to-cloud deployment options for Container Apps | https://learn.microsoft.com/en-us/azure/container-apps/code-to-cloud-options |
| Select between Azure container hosting options | https://learn.microsoft.com/en-us/azure/container-apps/compare-options |
| Plan and organize Azure Container Apps environments | https://learn.microsoft.com/en-us/a