Multi-Arch Docker Pipeline — GitHub Actions · GHCR CI/CD pipeline building multi-architecture Docker images (linux/amd64 + linux/arm64) via GitHub Actions and CircleCI. Uses Docker Buildx with QEMU emulation, multi-stage Dockerfiles for minimal production images, and automatic tagging by commit SHA, branch, and latest. Images are published to GitHub Container Registry (GHCR) with a multi-arch manifest. Deployments use Helm with atomic upgrades and automatic rollback, targeting both ephemeral preview environments and production EKS clusters.