After #992, builds without registry credentials skip Docker image output
but still extract binary artifacts. However, we were still trying to
upload digests for images that weren't created. Add conditional check
to only upload digests when actually pushing to registry.
Fork PRs currently fail binary extraction with 'invalid reference format'
and 'must specify at least one container source' errors. This replaces the
registry-specific docker create/copy method with BuildKit's local output
feature for all builds.
Uses multiple outputs in single build: image export plus local binary
extraction from /sbin. Speeds up extracting binary artifacts and saves a
couple of extra workflow steps in the process.
When BUILDKIT_ENDPOINT is set, builds run on a persistent BuildKit instance,
making runner setup steps unnecessary. Skip Rust toolchain installation,
QEMU setup, caching steps, and timelord to eliminate ~7 operations per job.
Also adds output to git SHA and timestamp steps for visibility.
Cuts at least a minute off average build time through fewer installs,
cache restores, and cache saves.
Docker exporter doesn't support manifest lists (multi-platform builds).
For fork PRs without registry credentials, use 'type=image,push=false'
instead of 'type=docker' to build multi-platform images locally without pushing.
Fork PRs now fail during Docker image build with 'tag is needed when
pushing to registry' because BUILTIN_REGISTRY_ENABLED evaluates to false
without proper credentials, leaving the images list empty. This appears
to be due to recent Forgejo permission changes affecting fork access to
repository secrets.
Add fallback to official registry when credentials unavailable, skip
registry login and push operations for forks, and make merge job
conditional since no digests exist without push. This allows forks to
test Docker builds whilst avoiding authentication failures.
Container failed to start when running as non-root (user 1000:1000) because
copied directories had restrictive 770 permissions, likely due to different
umask in persistent BuildKit. Non-root users couldn't access /usr/lib to
load required dynamic libraries.
Introduces prepper stage using Ubuntu to organize files into layered structure
with explicit 755 directory permissions before copying to scratch image.
Also fixes workflow syntax error and removes docker/** from paths-ignore to
ensure Docker changes trigger CI builds.
Allows us to use runners with persistent BuildKit containers for improved
caching and faster build times. Falls back to standard docker-container
driver when BUILDKIT_ENDPOINT environment variable is not set.
Also moves rustup installation to a seperate workflow and
enables caching.
The sccache action required a github.com api token, so we set
all that up too.
Tom Foster
Jade Ellis
Ginger
Renovate Bot
nex