Add Docker image and multi-arch CI build - #893
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Multi-stage build on debian:13-slim: a build stage with ccache and Ninja, a slim runtime stage with only the shared libraries the server links against. The server binary is the image ENTRYPOINT. The Docker workflow builds linux/amd64 and linux/arm64 natively on their respective GitHub-hosted runners, pushes each by digest to GHCR, and merges them into a single multi-arch manifest.
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Adds an official
Dockerfileand a GitHub Actions workflow that builds and publishes a multi-arch container image.Dockerfile
debian:13-slim.g++,cmake,ninja-build,gperf,libssl-dev,zlib1g-dev,ccache) and builds with-DCMAKE_BUILD_TYPE=Release. A BuildKit cache mount keeps theccachedirectory warm between builds.ca-certificates,openssl,zlib1g), keeping the final image small.ENTRYPOINT; the defaultCMDruns with--verbosity=2 --temp-dir=/tmp/telegram-bot-api. The API id/hash are supplied at runtime viaTELEGRAM_API_ID/TELEGRAM_API_HASHor flags.CI workflow (
.github/workflows/docker.yml)linux/amd64andlinux/arm64natively on their respective GitHub-hosted runners (ubuntu-24.04andubuntu-24.04-arm) rather than under QEMU emulation, which matters a lot for a from-source C++ build.mergejob assembles the per-arch digests into a single multi-arch manifest and tags it (branch, tag, andsha).type=gha, scoped per platform). Onpull_requestthe image is built but not pushed.The image is published to
ghcr.io/${{ github.repository }}.