Add Docker deployment for docs site at gr-apollo.l.warehack.ing

Multi-stage Dockerfile: node:22-slim build → caddy:2-alpine serve.
caddy-docker-proxy labels for automatic TLS + reverse proxy.
Profiles: prod (Caddy static) and dev (Astro HMR with volume mounts).

docs/.dockerignore

@@ -0,0 +1,8 @@
+node_modules/
+dist/
+.astro/
+.git/
+.env
+.env.*
+Makefile
+docker-compose.yml

docs/.env.example

@@ -0,0 +1,2 @@
+COMPOSE_PROJECT=gr-apollo-docs
+DOMAIN=gr-apollo.l.warehack.ing

docs/Caddyfile

@@ -0,0 +1,7 @@
+:80 {
+	root * /srv
+	file_server
+	encode gzip zstd
+	header Cache-Control "public, max-age=3600"
+	try_files {path} {path}/ /404.html
+}

docs/Dockerfile

@@ -0,0 +1,17 @@
+# Stage 1: Install dependencies
+FROM node:22-slim AS deps
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+
+# Stage 2: Build static site
+FROM deps AS build
+COPY . .
+ENV ASTRO_TELEMETRY_DISABLED=1
+RUN npm run build
+
+# Stage 3: Serve with Caddy
+FROM caddy:2-alpine
+COPY --from=build /app/dist /srv
+COPY Caddyfile /etc/caddy/Caddyfile
+EXPOSE 80

docs/Makefile

@@ -0,0 +1,18 @@
+.PHONY: up down logs restart dev
+
+up:
+	docker compose --profile prod up -d --build
+
+down:
+	docker compose --profile prod down
+	docker compose --profile dev down
+
+logs:
+	docker compose logs -f
+
+restart:
+	docker compose --profile prod down
+	docker compose --profile prod up -d --build
+
+dev:
+	docker compose --profile dev up --build

docs/docker-compose.yml

@@ -0,0 +1,38 @@
+services:
+  docs:
+    build: .
+    restart: unless-stopped
+    networks:
+      - caddy
+    labels:
+      caddy: ${DOMAIN}
+      caddy.reverse_proxy: "{{upstreams 80}}"
+    healthcheck:
+      test: ["CMD", "wget", "-qO-", "http://127.0.0.1:80/"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+    profiles:
+      - prod
+
+  docs-dev:
+    build:
+      context: .
+      target: deps
+    command: npx astro dev --host 0.0.0.0 --port 4321
+    ports:
+      - "4321:4321"
+    volumes:
+      - ./src:/app/src
+      - ./public:/app/public
+      - ./astro.config.mjs:/app/astro.config.mjs
+      - ./tsconfig.json:/app/tsconfig.json
+    environment:
+      - ASTRO_TELEMETRY_DISABLED=1
+      - VITE_HMR_HOST=${VITE_HMR_HOST:-}
+    profiles:
+      - dev
+
+networks:
+  caddy:
+    external: true