Docker

Diagnosing Docker containers that crash on startup with OOM or exit codes involves interpreting logs, diagnosing startup issues, and applying resource limits. This approach resolves runtime failures and mitigates flaky behavior caused by uncontrolled resource usage.

Harden a Docker image for production readiness by running containers as non-root by default, mitigating secret and privilege risks, and setting resource limits. This reduces insecure defaults and ensures reliable, production-grade hardening.

Prevent Docker Compose health check and volume overwrite timing issues by diagnosing Compose correctness pitfalls, handling environment variables, and fixing DNS network misassumptions. This ensures proper health readiness and reliable orchestration.

Create deterministic Docker builds by pinning image versions, controlling layer caching, and avoiding Dockerfile anti-patterns. This ensures correct COPY/ADD usage and prevents brittle builds, resulting in reliable build reproducibility.

Docker containers fail in production due to misconfigured networking or volumes from DNS misassumptions and environment-file pitfalls. Resolve these by diagnosing Compose correctness and handling environment variables to ensure reliable orchestration.

Debug Docker images that lack a shell by interpreting exit codes and diagnosing startup issues with logs. This approach resolves runtime failures and handles images lacking shells without requiring direct shell access.