Abstract
A Docker Compose stack that bundles several independent bandwidth-sharing services into one declarative deployment, with per-service configuration isolation and Watchtower-driven image updates. The interesting part is treating unrelated third-party applications as a single lifecycle unit rather than installing each on the host.
1. What This Is
I built this repository as an infrastructure exercise: take several unrelated network-sharing applications and run them from one Compose-managed stack instead of installing each manually on the host. Each service gets its own container definition, environment variables, and restart policy, but the whole group starts, stops, and updates as a unit.
The learning goal was multi-container lifecycle management and deployment consistency, not the business model behind the bandwidth-sharing services themselves.
2. How It Works
The stack follows a straightforward sequence: configure credentials, pull images, start services, and let Watchtower handle refreshes. Restart policies cover routine recovery without operator intervention.
| # | Stage | Input | Tool | Output |
|---|---|---|---|---|
| 01 | Credential setup | Account-specific keys per service | Compose env vars | Configured compose file |
| 02 | Image pull | Compose service definitions | Docker Compose | Local image cache |
| 03 | Stack start | Pulled images + env | Docker Compose | Running service containers |
| 04 | Recovery | Process crash / host reboot | Restart policies | Auto-restarted containers |
| 05 | Image refresh | Upstream registry tags | Watchtower | Updated containers |
3. Constraints
-
Single-host scope
The Compose file targets one Linux host. There is no orchestration, load balancing, or multi-node failover; if the host goes down, all services stop.
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Watchtower is minimal
Updates are a simple pull-and-restart cycle. No rollback, no canary, no validation that the new image actually works before the old one is replaced.
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Credentials in plain text
Service keys live in the Compose file or a local .env. There is no secrets manager, so the file must stay out of version control or a shared repo.
-
Third-party dependency
Each bandwidth-sharing service is an external product. If a provider changes its API, deprecates an endpoint, or shuts down, the corresponding container definition breaks with no built-in detection.
4. Next
- a. Add per-service health checks and conditional restart logic so a failing service does not silently consume bandwidth.
- b. Move credentials into a gitignored .env file or a lightweight secrets manager to keep the Compose file safe for version control.
- c. Add a basic uptime or bandwidth monitor (e.g. a small Prometheus exporter sidecar) so service degradation is visible without manual checks.
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