Docker, entrypoint.sh, and YAML — how Azure uses them

In Azure (Container Apps, AKS, Jobs), the same container ideas apply, just with cloud wiring added:

Docker image → what Azure actually runs
YAML or Azure CLI → how Azure runs it (CPU, memory, identity, schedule)
entrypoint.sh → the task Azure executes inside the container

Example in Azure:

  • The image contains your backup or restore logic
  • Azure injects configuration (env vars, Managed Identity, secrets)
  • The container starts → entrypoint.sh runs → job completes

Key insight:

Azure never runs your YAML.
Azure runs your container, and your container runs entrypoint.sh.

This is why the same image works:

  • locally with Docker
  • in Azure Container Apps
  • in scheduled Azure Jobs

Learn more about Azure’s container services here:

https://learn.microsoft.com/azure/container-apps/overview

Once you understand this, debugging Azure container issues becomes much easier.

#Azure #Docker #Containers #CloudComputing #AzureContainerApps #AKS #DevOps #CloudArchitecture #ManagedIdentity #InfrastructureAsCode

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