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clawbot a57efeed12 Build apps with BuildKit so build stages stop piling up (closes #220)
Multi-stage app builds left an untagged image for every build stage after each deploy, and nothing could safely remove them. upaas now asks Docker for a BuildKit build, which keeps stages in Docker's build cache instead of as images; Docker limits and cleans that cache itself. The final image is still tagged `upaas-<app>:<N>`, so old-image cleanup is unchanged. BuildKit's progress messages are decoded and written to the deployment log as plain text.

Deviation: adds `github.com/moby/buildkit` v0.16.0 (matching the pinned Docker client), added with `go get` since no make target adds dependencies.
Judgement call: the cache limit is on by default only from Docker Engine 28.2; older engines need the `daemon.json` setting the README now names.

Model: opus-5-5
2026-09-23 12:45:42 +02:00

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# Workflow
- branch (from `main`)
- do the work in Next Step
- move Next Step to the top of Completed Steps
- move the top item of Future Steps into Next Step
- commit (`TODO.md` changes in the same commit as the work)
- merge to `main` if the branch is not protected, otherwise open a PR
- push
# Status
1.0+. Tagged 1.0.0 on 2026-02-26; 8 commits on main since. `make check` is green
as of the golangci-lint v2.12.2 update.
# Next Step
Confirm `.gitea/workflows/check.yml` gates merges on `make check` so main cannot
regress.
# Completed Steps
- 2026-09-23: Apps are now built with BuildKit, so the stages of a multi-stage
build stay in Docker's size-limited build cache instead of piling up as
untagged images; build progress is still written to the deployment log as
plain text (#220).
- 2026-09-23: After a successful deploy, upaas removes the app's images other
than the running one and the one rollback would use, together with the
untagged images they were built on (#216).
- 2026-09-23: The git clone container is now removed together with its anonymous
volume (the `alpine/git` image declares one at `/git`), so a deploy no longer
leaves a Docker volume behind (#215).
- 2026-09-23: Deployment log files are now stored under `logs/<appname>/`
instead of `logs/<hostname>/<appname>/`, so downloads keep working after the
upaas container is recreated; logs written under an old hostname directory are
still found (#214).
- 2026-09-23: Fixed the flaky `t.TempDir` cleanup race in `internal/handlers`
(the one fixed in `internal/service/webhook` by #198):
`TestHandleWebhookProcessesValidWebhook` now waits with the webhook service's
`WaitForDeployments` instead of sleeping (#211).
- 2026-09-22: Vendored the canonical prettier/format toolchain from the
`sneak/prompts` scaffold: added `.prettierrc` (tabWidth 4, proseWrap always),
pinned `package.json` + `yarn.lock` (prettier 3.8.1), taught
`script/bootstrap` to install a pinned node/yarn via a hash-verified nvm
archive, and switched `script/fmt` to the pinned prettier reading
`.prettierrc` (no inline flags) over `static/js/*.js` and `**/*.md`. Reflowed
all markdown to house style; `alpine.min.js` stays byte-identical (#203).
- 2026-09-22: Fixed the flaky `t.TempDir` cleanup race in
`internal/service/webhook` by tracking the async deployment goroutine in a
`sync.WaitGroup` and exposing `WaitForDeployments`; tests now synchronize on
completion instead of sleeping (#198).
- 2026-09-22: Linting now runs only in Docker. Added `Dockerfile.lint` (pinned
golangci-lint v2.12.2, cache-busted via a `GATE_RUN` build arg so the linter
always executes), reduced `script/lint` to building it, dropped the
golangci-lint install from `script/bootstrap`, and switched the `Dockerfile`
lint stage to invoke `golangci-lint` directly instead of `make lint` to avoid
docker-in-docker (#188).
- 2026-09-22: Added `.prettierignore` so `make fmt` no longer rewrites the
vendored `static/js/alpine.min.js` bundle (#185).
- 2026-09-22: Fixed the gosec G703 path-traversal finding in the deploy log
download handler by verifying the resolved path stays within the deploy log
directory before serving, returning 404 on escape (#177).
- 2026-09-22: `script/bootstrap` now installs a pinned `goimports`
(`golang.org/x/tools` v0.49.0) into `/usr/local/bin`, so `make fmt` succeeds
on a fresh machine after `make bootstrap` (#184).
- 2026-09-09: Fixed four deployability blockers found by QA: CSRF origin check
over plain HTTP (`UPAAS_PLAINTEXT_HTTP`, #189), pulling the git image when
absent (#190), the env-var editor CSRF token lookup (#191), and the
port-mapping delete form's CSRF field (#192).
- 2026-08-07: Updated golangci-lint to v2.12.2 (canonical `.golangci.yml`,
`Dockerfile` lint stage pin, `script/bootstrap` release-archive pins) and
fixed all resulting lint findings (noctx, gosec, goconst, lll, dupl,
nolintlint); `make check` green.
- 2026-07-07 Adopted scripts-to-rule-them-all: `script/` entrypoints, Makefile
shims, README Entrypoints section
- 2026-03-11: Monolithic env var editing with bulk save (#158).
- 2026-03-10: Webhook event history UI page (#164); added missing Makefile
docker and hooks targets plus test timeout (#159); notification settings
passed from create form (#160).
- 2026-03-03: REPO_POLICIES compliance file set added (#155).
- 2026-03-01: Module path changed to sneak.berlin/go/upaas (#143); Dockerfile
split into lint and build stages with forced lint execution (#152, #154).
- 2026-02-26: 1.0.0 tagged; dashboard CSRFField crash fixed (#146).
- 1.0 audit bug fixes (#120-#125): deferred rollback on commit error, deployment
log size cap, error path rendering, docker-compose bind mount, domain type
refactor.
- CI simplified to docker build only (#130).
- 2025-12-29 onward: core PaaS built out: deploys with real-time build log
streaming, container start/stop/restart and logs, TCP/UDP port mapping,
Alpine.js UI, Slack notifications, ULID app IDs, session handling.
# Future Steps
- Resume feature work only after main is green.