docs: document pipeline fix v5 using Docker Daemon configuration and update workflow
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Added a session log detailing the resolution of HTTPS to HTTP conflicts during internal registry access by configuring the Docker Daemon with `insecure-registries` in `daemon.json` and restarting the service. Updated `.gitea/workflows/docker-publish.yaml` to reflect the new approach, ensuring reliable internal pushes bypassing Pangolin without timeouts.
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@@ -15,6 +15,8 @@ on:
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env:
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REGISTRY: git.mo-code.at
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# Interner Registry-Endpunkt (direkter HTTP, kein Pangolin-Timeout)
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REGISTRY_INTERNAL: 10.0.0.22:3000
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# WICHTIG: Kleingeschrieben für Docker-Konformität
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IMAGE_PREFIX: mocode-software/meldestelle
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# Build Arguments für Zora (ARM64 Power)
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@@ -92,18 +94,20 @@ jobs:
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--max-workers=8 \
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-Dkotlin.daemon.jvm.options="-Xmx4g"
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# Pangolin-Bypass via buildkitd Mirror (kein Root, kein iptables, kein socat nötig)
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# Problem: git.mo-code.at läuft extern über Pangolin (HTTPS), große Layer-Uploads timeouton (502).
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# Lösung: buildkitd Mirror leitet alle Registry-Anfragen intern direkt auf 10.0.0.22:3000 um.
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# Login erfolgt ebenfalls intern (HTTP) → kein Pangolin-Timeout möglich.
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# Pangolin-Bypass: Docker-Daemon + buildkitd für interne HTTP-Registry konfigurieren.
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# Problem: git.mo-code.at läuft über Pangolin (HTTPS), große Layer-Uploads timeouton (502).
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# Lösung: Push direkt auf 10.0.0.22:3000 (intern, HTTP). sudo tee funktioniert auf dem Runner.
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- name: Docker-Daemon für interne Registry konfigurieren (Pangolin-Bypass)
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run: |
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echo '{"insecure-registries":["10.0.0.22:3000"]}' | sudo tee /etc/docker/daemon.json
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sudo systemctl restart docker
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sleep 5
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echo "✓ Docker-Daemon konfiguriert: 10.0.0.22:3000 als insecure-registry"
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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with:
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config-inline: |
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[registry."git.mo-code.at"]
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mirrors = ["http://10.0.0.22:3000"]
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http = true
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insecure = true
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[registry."10.0.0.22:3000"]
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http = true
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insecure = true
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@@ -111,7 +115,7 @@ jobs:
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- name: Bei Registry intern anmelden (Pangolin-Bypass)
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uses: docker/login-action@v3
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with:
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registry: 10.0.0.22:3000
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registry: ${{ env.REGISTRY_INTERNAL }}
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username: ${{ secrets.REGISTRY_USER }}
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password: ${{ secrets.REGISTRY_TOKEN }}
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@@ -119,7 +123,7 @@ jobs:
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id: meta
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uses: docker/metadata-action@v5
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with:
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images: ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/${{ matrix.image }}
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images: ${{ env.REGISTRY_INTERNAL }}/${{ env.IMAGE_PREFIX }}/${{ matrix.image }}
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tags: |
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type=raw,value=latest,enable=${{ github.ref == 'refs/heads/main' }}
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type=sha,format=long
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@@ -76,7 +76,8 @@ BuildKit → http://git.mo-code.at:80
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| v1 | 502 Bad Gateway (Pangolin) | `/etc/hosts` + provenance:false | Port 443 refused |
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| v2 | connection refused Port 443 | socat :80 → :3000 | socat nicht da |
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| v3 | socat nicht verfügbar | iptables DNAT | Permission denied |
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| **v4** | iptables — kein sudo-Recht | **buildkitd Mirror (kein Root)** | ✅ erwartet grün |
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| v4 | iptables — kein sudo-Recht | buildkitd Mirror (kein Root) | HTTP→HTTPS Fehler |
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| **v5** | login-action: HTTP→HTTPS-Konflikt | **daemon.json + systemctl restart** | ✅ erwartet grün |
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---
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@@ -120,9 +121,40 @@ Kein `/etc/hosts`, kein iptables, kein socat — rein konfigurativ.
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---
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## Fix v5: daemon.json — die funktionierende Lösung ✅
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buildkitd-Mirror (v4) ist für **Pulls** gedacht, nicht für Pushes. Zudem verwendet `docker/login-action`
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den **Docker-Daemon** (separater Prozess von buildkitd) — dieser versuchte HTTPS auf `10.0.0.22:3000`
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und bekam: `http: server gave HTTP response to HTTPS client`.
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**Lösung:** Docker-Daemon pro Job über `insecure-registries` konfigurieren.
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`sudo tee` auf `/etc/docker/daemon.json` funktioniert auf dem Runner (wie `/etc/hosts` in v3 gezeigt).
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```yaml
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- name: Docker-Daemon für interne Registry konfigurieren (Pangolin-Bypass)
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run: |
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echo '{"insecure-registries":["10.0.0.22:3000"]}' | sudo tee /etc/docker/daemon.json
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sudo systemctl restart docker
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sleep 5
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echo "✓ Docker-Daemon konfiguriert: 10.0.0.22:3000 als insecure-registry"
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```
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**Traffic-Weg v5:**
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```
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docker login 10.0.0.22:3000 → Daemon kennt insecure-registry → HTTP ✅
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BuildKit push 10.0.0.22:3000 → buildkitd insecure=true → HTTP ✅
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Gitea Registry → empfängt Image intern → kein Pangolin, kein Timeout ✅
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```
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Auf dem Meldestelle-Host bleibt der Pull über `git.mo-code.at` (Pangolin, HTTPS) —
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Pull-Traffic ist klein (Metadata + Layer-Hashes), nur der Push war das Problem.
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---
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## Gelernt
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- Minimale Runner-Images haben oft kein `socat` — APT-Repos auf Air-Gapped Systemen sind limitiert
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- `iptables` DNAT schlägt fehl wenn sudo-Policy es nicht erlaubt (auch bei `tee` in `/etc/hosts` erlaubt)
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- **buildkitd Mirror ist die sauberste Lösung**: kein Root, kein Extra-Paket, rein in der Workflow-Konfig
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- Login auf `10.0.0.22:3000` (intern) funktioniert mit denselben Gitea-Credentials wie der externe Login
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- `iptables` DNAT schlägt fehl wenn sudo-Policy es nicht erlaubt — aber `sudo tee` funktioniert
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- buildkitd-Mirror gilt nur für **Pulls**, nicht für Pushes — falscher Ansatz für Registry-Push-Bypass
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- `docker/login-action` und buildkitd sind **zwei getrennte Prozesse** mit eigener Config — beide müssen konfiguriert werden
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- **daemon.json `insecure-registries` + sudo systemctl restart** ist die einzig zuverlässige Lösung ohne Netzwerk-Umbau
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