$ show jumpserver/Dockerfile
This repository contains the Docker packaging and optional Docker Swarm deployment recipes for JumpServer, an open-source bastion host / privileged access management system. It does not contain the JumpServer application source code; instead it composes upstream component images (core, koko, chen, web, kael) into a single all-in-one image and provides the runtime scripts to initialize and supervise them. The all-in-one deployment is explicitly a B/S web-only package and does not support client-related features. The core architecture is the allinone multi-stage Dockerfile, which copies runtime trees from each component image onto the core image, then uses Supervisor to run the Django core service, Koko (SSH/terminal access), guacd, Chen, Kael AI service, and the nginx web frontend. The entrypoint script prepares environment defaults, deterministically derives a service-to-service signing key from BOOTSTRAP_TOKEN when no explicit secret is supplied, migrates per-component data directories into a shared volume via symlinks, waits for database and Redis readiness, and runs the JumpServer schema migration before starting services. The swarm/ directory provides a separate deployment path using Docker Swarm stacks, external MySQL/Redis, healthchecks, and a one-shot init-db job. The code is generally careful within its narrow scope: database initialization is idempotent, local vs external dependency startup is handled cleanly, and the multi-stage image build is a non-trivial composition of separately published images. Maintenance appears active, and the build pipeline watches v5.* tags. Drift is medium: the GitHub Actions workflow uses the deprecated/archived actions/create-release@v1 action, image tags are mutable rather than digest-pinned, and a version string inside allinone/readme.txt lags behind the current default Dockerfile version. There are no tests, but this is deployment glue rather than application logic.
The LLM identified 3 files worth highlighting for reuse:
Container entry point that validates environment settings, derives an HMAC-SHA256 delegation secret deterministically from BOOTSTRAP_TOKEN when no explicit secret is set, migrates per-component data directories into a shared volume using a symlink helper, waits for database and Redis readiness, runs the schema upgrade, then hands off to Supervisor. The deterministic key derivation and symlink-based data persistence migration are non-obvious patterns reusable for any multi-service container image.
Multi-stage Dockerfile that merges several published component images into a single all-in-one image by copying /opt, /usr, and selected configuration directories from koko, chen, web, and kael onto the core image. It handles apt mirror replacement, nginx user and cache directories, Supervisor integration, and volume layout. The technique of composing a unified image from multiple independently versioned component images is a reusable packaging pattern.
Startup helper that idempotently initializes an embedded PostgreSQL cluster using pg_ctlcluster and a marker file, starts a password-protected Redis server, sets up /etc/hosts entries for internal service communication, and skips local services when external DB/Redis hosts are configured. The clean separation between local dependency bootstrap and external dependency passthrough is a reusable pattern for single-container deployments.