From a9452c0afb4ebd4759adacf0cc82b96472735108 Mon Sep 17 00:00:00 2001
From: Oli Passey <oli@hedgerows.net>
Date: Sat, 21 Feb 2026 18:13:41 +0000
Subject: [PATCH] docker

---
 .dockerignore               |  7 +++++++
 .gitea/workflows/docker.yml | 33 +++++++++++++++++++++++++++++++++
 Dockerfile                  |  7 +++++++
 README.md                   | 14 ++++++++++++++
 4 files changed, 61 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 .gitea/workflows/docker.yml
 create mode 100644 Dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..fc1e77f
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,7 @@
+.git
+.gitignore
+.gitea
+README.md
+scripts
+node_modules
+*.log
diff --git a/.gitea/workflows/docker.yml b/.gitea/workflows/docker.yml
new file mode 100644
index 0000000..5436997
--- /dev/null
+++ b/.gitea/workflows/docker.yml
@@ -0,0 +1,33 @@
+name: Build and Push Docker
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ secrets.REGISTRY_HOST }}
+          username: ${{ secrets.REGISTRY_USERNAME }}
+          password: ${{ secrets.REGISTRY_PASSWORD }}
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: ./Dockerfile
+          push: true
+          tags: |
+            ${{ secrets.REGISTRY_HOST }}/${{ secrets.IMAGE_NAME }}:latest
+            ${{ secrets.REGISTRY_HOST }}/${{ secrets.IMAGE_NAME }}:${{ github.sha }}
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..799042e
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,7 @@
+FROM nginx:1.27-alpine
+
+COPY ./index.html /usr/share/nginx/html/index.html
+COPY ./styles.css /usr/share/nginx/html/styles.css
+COPY ./app.js /usr/share/nginx/html/app.js
+
+EXPOSE 80
diff --git a/README.md b/README.md
index 51952b9..3e01048 100644
--- a/README.md
+++ b/README.md
@@ -28,6 +28,20 @@ Open `index.html` directly in your browser, or use the optional local server scr
 ./scripts/smoke.ps1
 ```
 
+## Docker build & push (Gitea Actions)
+This repo includes a Gitea Actions workflow in `.gitea/workflows/docker.yml`.
+
+### Required secrets
+Set these in your Gitea repo secrets:
+- `REGISTRY_HOST` (e.g. `dock.ptslondon.co.uk`)
+- `REGISTRY_USERNAME`
+- `REGISTRY_PASSWORD`
+- `IMAGE_NAME` (e.g. `team/tiles`)
+
+The workflow builds and pushes:
+- `${REGISTRY_HOST}/${IMAGE_NAME}:latest`
+- `${REGISTRY_HOST}/${IMAGE_NAME}:${GITHUB_SHA}`
+
 ## Pattern JSON format
 ```json
 {