Traefik v3.3's Docker provider fails to negotiate the API version against
Docker Engine 29 (API min 1.44) and falls back to 1.24, which the daemon
rejects ("client version 1.24 is too old"), leaving no container routes.
v3.7.x negotiates correctly through the socket-proxy.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| forgejo | ||
| mariadb | ||
| traefik | ||
| bootstrap-networks.sh | ||
| README.md | ||
Phase 2 — Platform services
Base Docker Compose projects that every customer site depends on. Each is its own compose project on the host, using data directories on the ZFS platform datasets created in Phase 1.
| Stack | Role | Network(s) | Data |
|---|---|---|---|
traefik |
Edge router: TLS/ACME, dynamic routing, dashboard. Talks to Docker via a socket-proxy (least privilege). | proxy, socketproxy |
tank/platform/traefik |
mariadb |
Shared database. Per-site DB + user created later by the CLI. Not published to the host. | platform |
tank/platform/mariadb |
forgejo |
Git + container registry, git over HTTPS (via Traefik). | proxy |
tank/platform/forgejo |
Prerequisites
- Phase 1 applied (ZFS datasets, Docker with the
zfsdriver, firewall). - DNS A/AAAA records for the platform hostnames (e.g.
traefik.example.com,git.example.com) pointing at the host, so ACME can issue certificates.
Bring-up order
# 1. Shared networks (once)
./bootstrap-networks.sh
# 2. Traefik (edge first, so ACME/routing is ready)
cd traefik && cp .env.example .env && $EDITOR .env && docker compose up -d && cd ..
# 3. Shared MariaDB
cd mariadb && cp .env.example .env && $EDITOR .env && docker compose up -d && cd ..
# 4. Forgejo
cd forgejo && cp .env.example .env && $EDITOR .env && docker compose up -d && cd ..
Secrets
For now each stack reads a git-ignored .env (copy from .env.example). Real
secrets move to SOPS/age when the provisioning CLI lands (Phase 4). Generate
strong values, e.g.:
openssl rand -base64 24 # MariaDB root password
htpasswd -nbB admin 'your-password' # Traefik dashboard basic-auth line
Verify
docker compose ls # all three up
curl -I https://traefik.example.com # dashboard (401 = auth working)
docker exec -it mariadb mariadb -uroot -p -e 'SELECT VERSION();'
curl -I https://git.example.com # Forgejo reachable
Notes / hardening
- Traefik ↔ Docker via socket-proxy: Traefik never mounts
docker.sockdirectly.tecnativa/docker-socket-proxyexposes a read-only, minimal subset on an internal network. This limits blast radius if Traefik is compromised. - MariaDB is not published to the host; it is reachable only by containers on
the internal
platformnetwork (sites join it to reach the DB). - Git over HTTPS only (SSH disabled) so no extra inbound port is needed — the Phase 1 firewall only opens 80/443 + admin SSH. Enable Forgejo SSH later only if you also open its port in the firewall.