initial

docker-compose.yml

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+services:
+
+  # ─── Proxy sidecar ─────────────────────────────────────────────────────────
+  # Bridges the isolated internal network to the internet.
+  # Enforces an egress allowlist — see proxy/squid.conf.
+  proxy:
+    build:
+      context: .
+      dockerfile: Dockerfile.proxy
+    networks:
+      - claude-internal   # reachable by the claude container
+      - proxy-external    # has outbound internet access
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    cap_drop:
+      - ALL
+    read_only: true
+    tmpfs:
+      - /tmp
+      - /var/spool/squid
+      - /var/log/squid
+
+  # ─── Claude Code container ─────────────────────────────────────────────────
+  # No direct internet access. All egress routes through the proxy sidecar.
+  # Run via "docker compose run --rm claude" (managed by claude.sh).
+  claude:
+    build:
+      context: .
+      dockerfile: Dockerfile.claude
+    depends_on:
+      proxy:
+        condition: service_healthy
+    networks:
+      - claude-internal   # only — no route to the internet
+    environment:
+      - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY}
+      - HTTP_PROXY=http://proxy:3128
+      - HTTPS_PROXY=http://proxy:3128
+      - ALL_PROXY=http://proxy:3128
+      - NO_PROXY=localhost,127.0.0.1
+    security_opt:
+      - no-new-privileges:true
+    cap_drop:
+      - ALL
+    stdin_open: true
+    tty: true
+    # Workspace is injected by claude.sh via --volume flag at run time.
+    # Default: named Docker volume. Override: set WORKSPACE_DIR on the host.
+
+networks:
+  # Internal-only: Docker adds no default gateway → no direct internet route
+  claude-internal:
+    driver: bridge
+    internal: true
+
+  # External: standard bridge with internet access (proxy only)
+  proxy-external:
+    driver: bridge