Docker / Compose and reliable runtime contracts

Docker β€” Compose and reliable runtime contracts

Review effective configuration, secrets, readiness, security, resources, and release transitions.

6 lessons Β· No account required

What you will learn

  • Resolve project-scoped models and distinguish configuration channels.
  • Specify bounded health, privilege, resource, shutdown, and rollback behavior.

  1. Compose projects and resolved configuration

    Treat a Compose file as a declarative model with explicit project scope and review the resolved result before lifecycle actions.

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  2. Configuration, interpolation, and secret boundaries

    Separate values used to render a model, runtime configuration, and build-only credentials.

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  3. Health checks, readiness, and dependency startup

    Define what a probe proves and avoid confusing startup ordering with continuing application availability.

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  4. Runtime identity and least privilege

    Reduce the authority available to a compromised process while preserving the specific access it actually needs.

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  5. Resource limits, logs, and bounded failure

    Plan CPU, memory, process count, and log retention as independent parts of the application budget.

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  6. Release identity, replacement, and rollback

    Plan a reviewable transition between known artifacts without assuming Compose provides automatic zero-downtime orchestration.

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