Kopia Multi-Architecture Builds

Automated multi-architecture builds of Kopia, a fast and secure open-source backup/restore tool, for various platforms.

Supported Architectures

• x86_64 (amd64) - Intel/AMD 64-bit
• aarch64 (arm64) - ARM 64-bit
• armv7 (arm/v7) - ARM 32-bit (hard-float)
• ppc64le - PowerPC 64-bit Little Endian
• s390x - IBM System z
• riscv64 - RISC-V 64-bit

Docker Usage

# Pull the latest version
docker pull ghcr.io/calagopus/kopia:latest

# Show kopia help
docker run --rm ghcr.io/calagopus/kopia:latest --help

# Run a repository connect/backup (mount host config + data)
docker run --rm \
  -v "$HOME/.config/kopia:/app/config" \
  -v "$PWD:/data" \
  ghcr.io/calagopus/kopia:latest snapshot create /data

Build Schedule

• Automatic builds run every Sunday at 00:00 UTC
• Manual builds can be triggered via GitHub Actions
• Versions track upstream kopia/kopia releases

Architecture Mapping

Docker Platform	Binary Name	Common Name
linux/amd64	x86_64	Intel/AMD
linux/arm64	aarch64	ARM 64-bit
linux/arm/v7	armv7	ARM 32-bit
linux/ppc64le	ppc64le	PowerPC
linux/s390x	s390x	IBM Z
linux/riscv64	riscv64	RISC-V

How It Works

Kopia is a pure-Go application, so the Dockerfile cross-compiles the binary from the build platform ($BUILDPLATFORM) for each target architecture with CGO_ENABLED=0. This avoids slow QEMU emulation during compilation while still producing a proper multi-arch image manifest. Built binaries are also extracted and attached to GitHub releases.

Contributing

Issues and pull requests are welcome. This repository primarily automates building upstream kopia/kopia releases.