Topic: End-to-End guide for writing & building docker images

[AnalogJ]

writing docker files

• Base images
• best practices for writing dockerfiles
• how to test dockerfiles (linters)
• Build context dockerignore
• CMD vs entrypoint
• Running multiple processes
• environmental variables & ARGS

building docker files

• speed up the build process (caching)
• cache busting
• slim builds
  • multistage builds
  • base images
  • cleanup package managers

Scaling builds

• Docker hub mirrors
• Kaniko
• Buildah

secrets & security

• Buildkit (part 1)
  • docker secrets
• Multistage builds
  • secrets
• Running as non-root

Metadata

• https://github.com/opencontainers/image-spec/blob/main/annotations.md