Previously, we had one .dockerignore that would do its best to only have
the binaries and licenses copied into the Docker (or nerdctl, or
buildah). Unfortunately, that meant it had to copy all of bin/server and
bin/cmctl, which could become quite large (I measured 1.6 GB).
Instead of relying on a single .dockerignore file, we copy the licenses
and binaries into a "scratch context" directory. The downside is that
all the binaries are in two different places (bin/server and
bin/scratch/containers). Note that we can't use symlinks because Docker
won't dereference them.
Signed-off-by: Maël Valais <mael@vls.dev>
Includes targets for:
- all "server" binaries, for all arches
- all containers for all server binaries for all arches
- all client binaries (kubectl plugin / cmctl) for all arches
- the cert-manager helm chart + signature
- the cert-manager static manifests + CRDs
- tools which bazel would download, with checksum verification
- (commented out) a signed SHA256SUM file for client binaries
Upgrades from the bazel flow include that:
- we use OS-specific base images rather than just using amd64 everywhere
- we easily add support for signing artifacts at build time
- we add ".exe" to the end of windows executables
- we add a zip file for windows executables, for easier consumption
- we concatenate YAML files more robustly
- staging a full release should be much faster
- hopefully, it's easier to change things!
- licenses are trimmed down to reduce bloat in images (the license
bundle was 1.4MB in size alone)
Changes from the bazel flow include:
- containers no longer have a symlink to the binary at an unusual
path, but instead just have the binary at a more predictable path
(e.g. /app/cmd/webhook/webhook instead of
/app/cmd/webhook/webhook.runfiles/com_github_jetstack_cert_manager/cmd/webhook/webhook_/webhook)
Signed-off-by: Ashley Davis <ashley.davis@jetstack.io>
