ci: stop building images on the GitHub mirror

GHCR keeps throttling the streamer's base image pull, so drop the GitHub
image workflow for now and have users build with docker compose. The
forge workflow keeps its retry for the operator's own deployment.

.dejima.md

@@ -37,9 +37,7 @@ architecture notes are in `CLAUDE.md`; feature and deployment docs are in
 ## GitHub mirror
 
 `mirror/` publishes `main` to a read-only GitHub mirror from the operator's
-host, never from a session; see `docs/08-development/github-mirror.md`. GitHub
-runs `.github/workflows`, the forge `.gitea/workflows`; keep the two image
-workflows in step.
+host, never from a session; see `docs/08-development/github-mirror.md`.
 
 ## CI
 

.env.example

@@ -13,7 +13,7 @@ JWT_SECRET=replace-with-a-secure-random-string
 # Built from source by default. To pull published images instead, set the
 # registry path they live under (ending in /), then:
 #   docker compose pull && docker compose up -d
-# IMAGE_PREFIX=ghcr.io/branderson/
+# IMAGE_PREFIX=registry.example.com/owner/
 # IMAGE_TAG=latest
 # "Latest release" API URL to check for updates (GitHub or Gitea); off when unset
 # APP_UPDATE_URL=https://git.example.com/api/v1/repos/owner/dotcom-arcade/releases/latest

.github/workflows/images.yml

@@ -1,91 +0,0 @@
-# Builds the app, session manager and streamer images on the GitHub mirror and
-# pushes them to GitHub's container registry, under the repository's owner.
-# The forge runs .gitea/workflows/images.yml instead; Gitea ignores this
-# directory while .gitea/workflows exists.
-name: Images
-
-on:
-  push:
-    branches: [main]
-  workflow_dispatch:
-
-permissions:
-  contents: read
-  packages: write
-
-jobs:
-  build:
-    name: ${{ matrix.name }}
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-          - name: app
-            image: dotcom-arcade
-            context: .
-          - name: session-manager
-            image: dotcom-arcade-session-manager
-            context: streaming/session-manager
-          - name: streamer
-            image: dotcom-arcade-streamer
-            context: streaming/streamer
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Lowercase the owner
-        id: owner
-        shell: bash
-        run: echo "name=${GITHUB_REPOSITORY_OWNER,,}" >> "$GITHUB_OUTPUT"
-
-      # Shown in Settings, since images carry no version number
-      - name: Name the version
-        id: version
-        shell: bash
-        run: echo "sha=${GITHUB_SHA::7}" >> "$GITHUB_OUTPUT"
-
-      - uses: docker/setup-buildx-action@v3
-
-      - uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.actor }}
-          password: ${{ secrets.GITHUB_TOKEN }}
-
-      - id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ghcr.io/${{ steps.owner.outputs.name }}/${{ matrix.image }}
-          tags: type=raw,value=latest
-
-      # GHCR sometimes answers the streamer's base image pull with 429 Too Many
-      # Requests; it clears within minutes, so retry once.
-      - id: build
-        uses: docker/build-push-action@v6
-        continue-on-error: true
-        with:
-          context: ${{ matrix.context }}
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          platforms: linux/amd64
-          build-args: |
-            VERSION=${{ steps.version.outputs.sha }}
-          provenance: false
-
-      - name: Wait before retrying
-        if: steps.build.outcome == 'failure'
-        run: sleep 120
-
-      - name: Retry the build
-        if: steps.build.outcome == 'failure'
-        uses: docker/build-push-action@v6
-        with:
-          context: ${{ matrix.context }}
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          platforms: linux/amd64
-          build-args: |
-            VERSION=${{ steps.version.outputs.sha }}
-          provenance: false

README.md

@@ -135,9 +135,6 @@ PGID=1000
 docker compose up -d --build
 ```
 
-To pull prebuilt images instead of building them, see
-[prebuilt images](docs/09-deployment/docker-deployment.md#prebuilt-images).
-
 Open `http://<server>/` and create the admin account. On first start the app
 indexes the collection, which takes a few minutes on a full Ultimate install.
 Under **Settings → App** you can set the site name and tagline.

docs/08-development/README.md

@@ -16,7 +16,7 @@ the Dotcom Arcade application.
 6. **[Debugging Guide](./debugging.md)** - Debugging tips and troubleshooting
 7. **[Common Pitfalls](./common-pitfalls.md)** - Known issues and solutions
 8. **[Upstream Sync](./upstream-sync.md)** - Merging changes from flashpoint-web
-9. **[GitHub Mirror](./github-mirror.md)** - Publishing to GitHub and GHCR
+9. **[GitHub Mirror](./github-mirror.md)** - Publishing to GitHub
 10. **[Demo Data](./demo-data.md)** - Made-up games for development and screenshots
 
 ## Quick Start

docs/08-development/github-mirror.md

@@ -4,8 +4,7 @@ Dotcom Arcade is developed on a private forge. `mirror/github-mirror.sh`
 publishes its `main` and the tags on `main` to
 [github.com/branderson/dotcom-arcade](https://github.com/branderson/dotcom-arcade),
 hourly, from a host that can push to GitHub. Issues and pull requests are off
-there. Actions stays on, since it builds the images that `ghcr.io/branderson/`
-serves (see [publishing images](../09-deployment/docker-deployment.md#publishing-images)).
+there.
 
 The mirror's `main` is the forge's plus one commit, which adds a read-only notice
 under the README's title. Every forge commit is in the mirror unchanged, and
@@ -21,8 +20,6 @@ instead of publishing without the notice.
    pushing it.
 3. Once the first sync has pushed, run `github-mirror.sh --settings` (needs
    `gh`). It turns off issues, pull requests, projects, wiki and discussions.
-4. The first image build creates its packages as private. In each package's
-   settings on GitHub, set its visibility to public.
 
 The timer runs a copy of the script, not the checkout's. Reinstall it after
 reviewing a change to `mirror/`.

docs/09-deployment/docker-deployment.md

@@ -28,27 +28,18 @@ All three are built from this repository by `docker compose up -d --build`.
 
 ### Prebuilt images
 
-Images are published to GitHub's container registry. To pull them instead of
-building, set `IMAGE_PREFIX` in `.env`, ending in `/`. There's one tag,
-`latest`, built from the tip of `main`.
+No images are published for now, so build them with `docker compose up -d --build`.
+If you publish your own (see below), set `IMAGE_PREFIX` in `.env` to the
+registry path they live under, ending in `/`:
 
 ```sh
-IMAGE_PREFIX=ghcr.io/branderson/
+IMAGE_PREFIX=registry.example.com/owner/
 ```
 
-Then run `docker compose pull && docker compose up -d`. Images from another
-registry work the same way, with its path as the prefix.
+Then run `docker compose pull && docker compose up -d`.
 
 ### Publishing images
 
-Two workflows build the same images with the same tags:
-
-- `.github/workflows/images.yml` runs on the
-  [GitHub mirror](../08-development/github-mirror.md) and pushes to
-  `ghcr.io/<owner>/` with the workflow's own token. It needs no setup.
-- `.gitea/workflows/images.yml` runs on the forge. Gitea ignores
-  `.github/workflows` while `.gitea/workflows` exists.
-
 `.gitea/workflows/images.yml` builds all three images on Gitea Actions and
 pushes them to the Gitea instance's container registry, under the repository's
 owner. Each push to `main` publishes `latest`. Its jobs run docker builds, so they need a runner labelled

docs/README.md

@@ -126,7 +126,7 @@ for Flashpoint Ultimate.
 - [Debugging](08-development/debugging.md) - Debugging tips
 - [Common Pitfalls](08-development/common-pitfalls.md) - Known issues
 - [Upstream Sync](08-development/upstream-sync.md) - Merging changes from flashpoint-web
-- [GitHub Mirror](08-development/github-mirror.md) - Publishing to GitHub and GHCR
+- [GitHub Mirror](08-development/github-mirror.md) - Publishing to GitHub
 - [Demo Data](08-development/demo-data.md) - Made-up games for development and screenshots
 
 ### 09. Deployment

mirror/github-mirror.sh

@@ -54,9 +54,8 @@ transform() {
         || die "README.md: no title to put the mirror notice under"
 }
 
-# Issues, pull requests, wiki and the like off; Actions stays on, since it
-# publishes the images. Settings rather than content, so a sync does not
-# reapply them; run once after creating the repository.
+# Issues, pull requests, wiki and the like off. Settings rather than content,
+# so a sync does not reapply them; run once after creating the repository.
 settings() {
     command -v gh >/dev/null || die "--settings needs the gh CLI"
     gh api -X PATCH "repos/$MIRROR_REPO" --silent \