Docker Compose, Bake, and ECR Skill

Use when configuring Docker Compose services, writing Docker Bake files for CI/CD builds, or managing ECR image repositories. Covers modern Compose features, Bake HCL syntax, and ECR caching strategies.

Docker Compose (Modern Features)

YAML anchors and aliases

Reduce duplication with anchors (&name) and aliases (*name). Use x- prefix for reusable fragments:

# Define reusable fragments with x- prefix (not rendered as services)
x-common-env: &common-env
  LOG_LEVEL: ${LOG_LEVEL:-INFO}
  DEVELOPER_ID: ${USER:-}