Docker Security

Docker containers provide isolation, but they are not inherently secure by default. Proper configuration and best practices are essential.

Best Practices

  • Use minimal base images (distroless, Alpine)
  • Run containers as non-root users
  • Use multi-stage builds
  • Scan images for vulnerabilities
  • Use read-only filesystems where possible
  • Limit container capabilities
  • Use resource limits
  • Never store secrets in images