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Thomas Kosiewski 51836e681e refactor: build dogfood image as base + mise oci layers (#25448)
Splits the dogfood image into two artifacts:

- `ghcr.io/coder/oss-dogfood-base:<distro>-<base-sha>`: Ubuntu base with
apt packages, chrome, rustup, brew, gh, and the mise binary. The
base-sha is a cache key over `Dockerfile.base` and `files/`, so commits
that don't touch those inputs reuse the previous build.
- `codercom/oss-dogfood:<final-sha>-<distro>` and rolling tags
(`:22.04`, `:26.04`, `:latest`, `:<branch>`): produced by `mise oci
build` on top of the base, with one content-addressed OCI layer per mise
tool. The rolling tag scheme is unchanged, so the workspace template
doesn't need updating.

Single-tool version bumps now invalidate only that tool's OCI layer, so
workspaces re-pull just what changed instead of the entire 5-6 GB image
on every recreate.

Also:

- Drops the build-time `pnpm dlx playwright@1.47.0 install --with-deps
chromium` step (~400 MB) and the equivalent `playwright-driver.browsers`
install from `flake.nix`. `@playwright/mcp` (used by the claude-code and
codex MCP servers in `dogfood/coder/main.tf`) does NOT auto-install
browsers, so the existing `install-deps` `coder_script` now runs two
installs on workspace start: `pnpm exec playwright install chromium` for
the site's pinned `@playwright/test`, and `npx
--package=@playwright/mcp@latest playwright-core install --no-shell
chromium` so the MCP servers find their matching browser revision.
Browser revisions coexist under
`~/.cache/ms-playwright/chromium-<rev>/`, which lives on the home volume
so both downloads happen once per workspace recreate and persist across
restarts. Net effect: same MCP behavior as before, +~1-2 min on first
workspace start. Nix devshell users running site e2e tests locally now
need `pnpm exec playwright install` once (instead of getting browsers
via nixpkgs).
- Bumps the pinned mise binary to v2026.5.12 (matching main after
#25521) and adds top-level `min_version = "2026.5.12"` to `mise.toml` so
every consumer (devs, CI, the embedded mise inside the dogfood image,
mise oci builds) fails fast on an older mise.
- Adds bison, flex, libicu-dev, libreadline-dev, uuid-dev, and
zlib1g-dev to both Ubuntu base images for source-build use cases (e.g.,
building Postgres from source).
- Replaces skopeo with crane as the registry client `mise oci push`
shells out to: crane is added to `mise.toml`, the workflow drops its
`apt-get install skopeo` and forces `--tool crane`, and the local
wrapper image stops bundling skopeo. One source of truth for tool
versions, no apt drift, smaller wrapper image, and workspace users get a
registry client on PATH for free via mise oci's tool layers.
- Removes `nix.hash`/`mise.hash` and their Makefile rules. The registry
digest already captures every effective change since CI rebuilds when
any baked-in input moves; the per-file `filesha1()` entries in
`pull_triggers` are redundant.

Supersedes #25400 (the `mise.hash` pull trigger landed there in
`2b612abe7b`; this PR removes it as part of the broader simplification).

> [!NOTE]
> `mise oci build` is experimental and requires `MISE_EXPERIMENTAL=1`
(set at job level in the workflow). The local-only
`scripts/dogfood/mise-oci-wrapper.sh` builds a tiny
`coderdev/mise-oci-wrapper:<version>` Debian image with curl-installed
mise on first invocation (cached by version tag thereafter); we don't
reuse `jdxcode/mise:latest` because that tag lags upstream GitHub
releases by days and would defeat the `min_version` enforcement above.

> [!NOTE]
> `compute-base-sha.sh` and `compute-final-sha.sh` are cache keys, not
strict content addresses: the base Dockerfile still pulls dynamic
resources at build time (gh/buildx `releases/latest`, chrome
`stable_current_amd64.deb`, apt mirror state). Two runs with identical
checked-in files can produce slightly different bytes, which is
acceptable here because the cache-hit savings on irrelevant commits
outweigh that drift.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Thomas Kosiewski <tk@coder.com>
Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-26 14:52:21 +02:00

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# Common ignore patterns, these rules applies in both root and subdirectories.
.DS_Store
.eslintcache
.gitpod.yml
.idea
.run
**/*.swp
gotests.coverage
gotests.xml
gotests_stats.json
gotests.json
node_modules/
vendor/
yarn-error.log
# Test output files
test-output/
# VSCode settings.
**/.vscode/*
# Allow VSCode recommendations and default settings in project root.
!/.vscode/extensions.json
!/.vscode/settings.json
# Allow code snippets
!/.vscode/*.code-snippets
# Front-end ignore patterns.
.next/
site/*-storybook.log
site/coverage/
site/storybook-static/
site/test-results/*
site/e2e/test-results/*
site/e2e/states/*.json
site/e2e/.auth.json
site/playwright-report/*
site/.swc
# Make target for updating generated/golden files (any dir).
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/_gen/
.gen-golden
# Build
bin/
build/
dist/
out/
# Bundle analysis
site/stats/
*.tfstate
*.tfstate.backup
*.tfplan
*.lock.hcl
!provisioner/terraform/testdata/resources/.terraform.lock.hcl
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!provisioner/terraform/testdata/modules-source-caching/.terraform/
**/.coderv2/*
**/__debug_bin
# direnv
.envrc
.direnv
*.test
# Loadtesting
./scaletest/terraform/.terraform
./scaletest/terraform/.terraform.lock.hcl
scaletest/terraform/secrets.tfvars
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result
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# Filebrowser.db
**/filebrowser.db
# pnpm
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# Zed
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# dlv debug binaries for go tests
__debug_bin*
**/.claude/settings.local.json
# Local agent configuration
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# mise local overrides
mise.local.toml
.mise.local.toml
mise.*.local.toml
.mise.*.local.toml
# `mise oci build` writes its OCI image layout here by default.
mise-oci/
/.env
# Ignore plans written by AI agents.
PLAN.md
# Ignore any dev licenses
license.txt
# Agent planning documents (local working files).
docs/plans/