Skip redundant Docker image builds

README.md

@@ -35,7 +35,7 @@ This project is for those who prefer containerized solutions. It's based on the
       --build-arg SOURCE_REPO=https://git.wylab.me/wylab/wylab-station-14.git \
       --build-arg SOURCE_REF=master \
       --build-arg TARGET_PLATFORM=linux-x64 \
-      -t wylab-ss14-server .
+      -t git.wylab.me/wylab/WS14-Docker-Linux-Server:local .
     ```
 
     - `SOURCE_REPO` – Git URL of the content repo to compile (defaults to the wylab fork).
@@ -54,7 +54,7 @@ docker run -d \
   -p 5000:5000/udp \
   -v /path/on/host:/ss14 \
   --name wylab-ss14 \
-  wylab-ss14-server
+  git.wylab.me/wylab/WS14-Docker-Linux-Server:latest
 ```
 
 On first start the container copies `/ss14-default` into your mounted volume (if empty) so you can edit configs or upload new builds persistently.
@@ -66,8 +66,7 @@ version: '3.9'
 
 services:
   ss14-server:
-    image: wylab-ss14-server
-    build: .
+    image: git.wylab.me/wylab/WS14-Docker-Linux-Server:latest
     ports:
       - "1212:1212/tcp"
       - "1212:1212/udp"
@@ -78,4 +77,37 @@ services:
     restart: unless-stopped
 ```
 
+### CI/CD
+
+Two workflows keep this image up to date:
+
+1. **`wylab-station-14/.github/workflows/publish.yml`**  
+   - Triggered on pushes to `master`, manual dispatch, or nightly cron.  
+   - Checks `https://cdn.wylab.me/fork/wylab/manifest` first; if the current commit already exists on the CDN it exits early.  
+   - Uses `actions/cache` to persist `~/.nuget/packages` and `RobustToolbox/bin`, so repeated builds reuse restored packages/engine binaries when the inputs haven’t changed.  
+   - Otherwise builds the server/client packages via `Content.Packaging`, uploads them via `Tools/publish_multi_request.py`, and fires a `repository_dispatch` event (`event_type: ss14-package-ready`) to this repo.
+
+   Required secrets in the wylab-station-14 repo:  
+   `PUBLISH_TOKEN`, `DOCKER_TRIGGER_TOKEN`, and (if used) `SECRETS_PRIVATE_KEY`.  
+   To send the dispatch, add `DOCKER_TRIGGER_TOKEN` (a PAT with repo access).
+
+2. **`WS14-Docker-Linux-Server/.github/workflows/main.yml`**  
+   - Triggered on pushes here, manual dispatch, or the `ss14-package-ready` event.  
+   - Resolves the target wylab commit (uses the payload commit if provided).  
+   - Logs into `git.wylab.me` and runs `docker manifest inspect` before building; if an image tagged with that commit already exists it skips the build.  
+   - Otherwise builds the Docker image with `SOURCE_REF=<commit>` and pushes:
+     - `git.wylab.me/wylab/WS14-Docker-Linux-Server:latest`
+     - `git.wylab.me/wylab/WS14-Docker-Linux-Server:<docker repo commit>`
+     - `git.wylab.me/wylab/WS14-Docker-Linux-Server:<wylab commit>`
+
+   Required secrets here: `REGISTRY_USERNAME` / `REGISTRY_PASSWORD` (credentials for `git.wylab.me`).
+
+After the build finishes, Unraid (or any host) can pull:
+
+```
+git.wylab.me/wylab/WS14-Docker-Linux-Server:latest
+```
+
+Use that string in Unraid’s “Repository” field and map `/ss14` to persistent storage.
+
 ---