Switch to OCI/Wolfi based image (#52693)
This PR ships our freshly rewritten container images built with
rules_oci and Wolfi, which for now will only be used on S2.
*What is this about*
This work is the conjunction of [hardening container
images](https://github.com/orgs/sourcegraph/projects/302?pane=issue&itemId=25019223)
and fully building our container images with Bazel.
* All base images are now distroless, based on Wolfi, meaning we fully
control every little package version and we won't be subject anymore to
Alpine maintainers dropping a postgres version for example.
* Container images are now built with `rules_oci`, meaning we don't have
Dockerfile anymore, but instead created through [Bazel
rules](https://sourcegraph.sourcegraph.com/github.com/sourcegraph/sourcegraph@bzl/oci_wolfi/-/blob/enterprise/cmd/gitserver/BUILD.bazel).
Don't be scared, while this will look a bit strange to you at first,
it's much saner and simpler to do than our Dockerfiles and their muddy
shell scripts calling themselves in cascade.
:spiral_note_pad: *Plan*:
*1/ (NOW) We merge our branch on `main` today, here is what it does
change for you :point_down::skin-tone-3::*
* On `main`:
* It will introduce a new job on `main` _Bazel Push_, which will push
those new images on our registries with all tags prefixed by `bazel-`.
* These new images will be picked up by S2 and S2 only.
* The existing jobs building docker images and pushing them will stay in
place until we have QA'ed them enough and are confident to roll them out
on Dotcom.
* Because we'll be building both images, there will be more jobs running
on `main`, but this should not affect the wall clock time.
* On all branches (so your PRs and `main`)
* The _Bazel Test_ job will now run: Backend Integration Tests, E2E
Tests and CodeIntel QA
* This will increase the duration of your test jobs in PRs, but as we
haven't removed yet the `sg lint` step, it should not affect too much
the wall clock time of your PRs.
* But it will also increase your confidence toward your changes, as the
coverage will vastly increased compared to before.
* If you have ongoing branches which are affecting the docker images
(like adding a new binary, like the recent `scip-tags`, reach us out on
#job-fair-bazel so we can help you to port your changes. It's much much
simpler than before, but it's going to be unfamiliar to you).
* If something goes awfully wrong, we'll rollback and update this
thread.
*2/ (EOW / Early next week) Once we're confident enough with what we saw
on S2, we'll roll the new images on Dotcom.*
* After the first successful deploy and a few sanity checks, we will
drop the old images building jobs.
* At this point, we'll reach out to all TLs asking for their help to
exercise all features of our product to ensure we catch any potential
breakage.
## Test plan
<!-- All pull requests REQUIRE a test plan:
https://docs.sourcegraph.com/dev/background-information/testing_principles
-->
* We tested our new images on `scale-testing` and it worked.
* The new container building rules comes with _container tests_ which
ensures that produced images are containing and configured with what
should be in there:
[example](https://sourcegraph.sourcegraph.com/github.com/sourcegraph/sourcegraph@bzl/oci_wolfi/-/blob/enterprise/cmd/gitserver/image_test.yaml)
.
---------
Co-authored-by: Dave Try <davetry@gmail.com>
Co-authored-by: Will Dollman <will.dollman@sourcegraph.com>
2023-06-02 10:12:52 +00:00
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