Add site Docker build (nginx) and .htaccess for Apache hosting

- site/Dockerfile: multi-stage build (node:24-slim → nginx:alpine)
- site/nginx.conf: trailing slash removal, .html fallback, SPA fallback
- site/static/.htaccess: same logic for Apache hosting
- .github/workflows/site-docker.yml: build+push to ghcr.io on tags

Author: prih

.github/workflows/site-docker.yml

@@ -0,0 +1,56 @@
+name: Build and Push Site Docker Image
+
+on:
+  push:
+    tags: ['v*']
+    paths:
+      - 'site/**'
+  workflow_dispatch:
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: graph-memory/graphmemory-site
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Log in to Container Registry
+        uses: docker/login-action@v4
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v6
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest
+            type=sha,prefix=
+            type=semver,pattern={{version}}
+            type=semver,pattern={{major}}.{{minor}}
+            type=semver,pattern={{major}}
+
+      - name: Build and push
+        uses: docker/build-push-action@v7
+        with:
+          context: ./site
+          platforms: linux/amd64,linux/arm64
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

site/.dockerignore

@@ -0,0 +1,3 @@
+node_modules
+build
+.docusaurus

site/Dockerfile

@@ -0,0 +1,13 @@
+FROM node:24-slim AS build
+
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY . .
+RUN npm run build
+
+FROM nginx:alpine
+COPY --from=build /app/build /usr/share/nginx/html
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+
+EXPOSE 80

site/nginx.conf

@@ -0,0 +1,23 @@
+server {
+    listen 80;
+    server_name _;
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Remove trailing slash (Docusaurus trailingSlash: false)
+    rewrite ^(.+)/$ $1 permanent;
+
+    location / {
+        try_files $uri $uri.html $uri/index.html /index.html;
+    }
+
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    location /img/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+}

site/static/.htaccess

@@ -0,0 +1,24 @@
+DirectoryIndex index.html
+
+RewriteEngine On
+
+# Remove trailing slash
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^(.+)/$ /$1 [R=301,L]
+
+# If directory with trailing slash — try serving dir/index.html or redirect to without slash
+RewriteCond %{REQUEST_FILENAME} -d
+RewriteCond %{REQUEST_URI} ^(.+)/$
+RewriteCond %{DOCUMENT_ROOT}/$1.html -f
+RewriteRule ^(.+)/$ /$1 [R=301,L]
+
+# Serve .html extension for clean URLs
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteCond %{REQUEST_FILENAME}.html -f
+RewriteRule ^ %{REQUEST_URI}.html [L]
+
+# SPA fallback
+RewriteCond %{REQUEST_FILENAME} !-f
+RewriteCond %{REQUEST_FILENAME} !-d
+RewriteRule ^ /index.html [L]