v1 - basic functionality

docker-compose.yml

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+services:
+  claude-code:
+    build: .
+    image: claude-code:local
+    container_name: claude-code
+
+    # Pass your Anthropic API key in from the host environment,
+    # or drop it into a .env file alongside this compose file.
+    # environment:
+    #  - ANTHROPIC_API_KEY=${ANTHROPIC_API_KEY:?Set ANTHROPIC_API_KEY in your environment or .env file}
+
+    volumes:
+      # Fixed home volume — persists Claude Code install, config, and credentials
+      # across container restarts and image rebuilds.
+      - claude-home:/home/coder
+
+      # Swappable project folder — override PROJECT_DIR to point at any directory:
+      #   PROJECT_DIR=/path/to/myproject docker compose run --rm claude-code
+      - ${PROJECT_DIR:-./code}:/code
+
+    # Drop all Linux capabilities and disable privilege escalation —
+    # Claude Code doesn't need any of them.
+    cap_drop:
+      - ALL
+    security_opt:
+      - no-new-privileges:true
+
+    # Interactive terminal so `claude` works properly
+    stdin_open: true
+    tty: true
+
+    working_dir: /code
+
+volumes:
+  claude-home:
+    # Named volume — Docker manages it; survives `docker compose down`
+    # (use `docker compose down -v` to wipe it along with the install)