masoodafar-web
419 lines
15 KiB
Markdown
419 lines
15 KiB
Markdown
# 🔧 راهنمای CI/CD Pipeline — Gitea Actions + K3s
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> آخرین بروزرسانی: February 11, 2026
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---
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## 📐 معماری کلی
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```
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┌─────────────────────────────────────────────────────────┐
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│ K3s Cluster (194.5.195.53) │
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│ │
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│ ┌─────────────────────────────────────────────────┐ │
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│ │ gitea-runner Pod (2 containers) │ │
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│ │ │ │
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│ │ ┌──────────────────┐ ┌──────────────────────┐ │ │
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│ │ │ docker (DinD) │ │ runner (act_runner) │ │ │
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│ │ │ docker:dind │ │ gitea/act_runner │ │ │
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│ │ │ privileged: true │ │ DOCKER_HOST= │ │ │
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│ │ │ port: 2375 │ │ tcp://localhost:2375│ │ │
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│ │ └──────────────────┘ └──────────────────────┘ │ │
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│ │ ▲ shared volumes: docker-storage │ │
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│ └─────────────────────────────────────────────────┘ │
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│ │
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│ ┌─────────────┐ ┌───────────┐ ┌────────────────┐ │
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│ │ Gitea │ │ Nexus │ │ Docker Reg. │ │
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│ │ :3000 │ │ :32081 │ │ :32082 (pull) │ │
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│ │ │ │ (NuGet) │ │ :30080 (push) │ │
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│ └─────────────┘ └───────────┘ └────────────────┘ │
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└─────────────────────────────────────────────────────────┘
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```
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### سه لایه Docker-in-Docker:
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```
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K3s containerd (لایه ۱)
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└── gitea-runner Pod → docker container (DinD daemon) (لایه ۲)
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└── workflow: docker run / docker build (لایه ۳)
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```
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---
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## 📁 فایلهای Workflow
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### 🐳 K8s Pipelines (Docker + K3s) — آفلاین
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| سرویس | فایل | Branch | Image | Deploy |
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|--------|------|--------|-------|--------|
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| CMS | `kub-deploy.yml` | `kub-stage` | `admin/cms` | SSH → kubectl |
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| BackOffice | `kub-deploy.yml` | `kub-stage` | `admin/backoffice` | SSH → kubectl |
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| FrontOffice | `kub-deploy.yml` | `kub-stage` | `admin/frontoffice` | SSH → kubectl |
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| CMS | `prod-deploy.yml` | `production` | `admin/cms:prod` | SSH → kubectl |
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| BackOffice | `prod-deploy.yml` | `production` | `admin/backoffice:prod` | SSH → kubectl |
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| FrontOffice | `prod-deploy.yml` | `production` | `admin/frontoffice:prod` | SSH → kubectl |
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### 🪟 Windows/IIS Pipelines (Legacy) — آنلاین
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| سرویس | فایل | Branch | Target |
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|--------|------|--------|--------|
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| CMS | `cms-stage.yml` | `stage_new` | IIS → `cms.kbs1.ir` |
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| BackOffice | `bo-stage.yml` | `stage-new` | IIS → `admin.kbs1.ir` |
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| FrontOffice | `fo-stage.yml` | `stage-new` | IIS → `kbs1.ir` |
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> ⚠️ Stage pipeline ها از Windows runner + IIS استفاده میکنن و Docker ندارن.
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### ساختار مشترک Pipeline:
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```
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1. Start Docker daemon (DinD)
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2. Checkout code (git clone)
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3. Login to Docker registries (32082 + 30080)
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4. [CMS only] Publish Protobuf packages
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5. Build Docker Image
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6. Push to Registry
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7. Deploy to Kubernetes (SSH → kubectl rollout restart)
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```
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---
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## 🐛 مشکلات حلشده و راهحلها
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### مشکل ۱: `iptables failed: Permission denied`
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**خطا:**
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```
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iptables v1.8.10 (nf_tables): Could not fetch rule set generation id: Permission denied
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```
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**علت:** K3s containerd به Docker daemon اجازه تغییر iptables نمیده.
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**راهحل:** غیرفعال کردن networking در dockerd:
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```bash
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dockerd --iptables=false --ip6tables=false --bridge=none --storage-driver=vfs &
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```
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> ⚠️ با `--bridge=none` نیاز به شبکهسازی Docker نیست چون فقط build و push انجام میشه.
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---
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### مشکل ۲: `failed to unmount overlayfs: operation not permitted`
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**خطا:**
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```
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failed to register layer: unshare: operation not permitted
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```
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**علت:** `overlay2` storage driver نیاز به mount namespace داره که داخل K3s مجاز نیست.
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**راهحل:** استفاده از `vfs` storage driver:
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```bash
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dockerd --storage-driver=vfs &
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```
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> ⚠️ `vfs` کندتره ولی هیچ mount syscall خاصی نیاز نداره. برای CI/CD کافیه.
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---
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### مشکل ۳: `no basic auth credentials` هنگام pull ایمیج
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**خطا:**
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```
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Error response from daemon: Head "https://194.5.195.53:32082/v2/dotnet/sdk/manifests/9.0":
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no basic auth credentials
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```
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**علت:** `docker login` فقط قبل از push انجام میشد، ولی `docker build` (یا `docker run`) هم از `32082` ایمیج pull میکنه.
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**راهحل:** اضافه کردن step "Login to Docker registries" بلافاصله بعد از Checkout:
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```yaml
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- name: Login to Docker registries
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run: |
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echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login 194.5.195.53:32082 -u admin --password-stdin
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echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login ${{ env.REGISTRY }} -u admin --password-stdin
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```
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---
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### مشکل ۴: `unshare: operation not permitted` هنگام extract لایهها
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**خطا:**
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```
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docker: failed to register layer: unshare: operation not permitted
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```
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**علت اصلی (دو بخش):**
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**بخش ۱:** Gitea act_runner دیفالت `container.privileged: false` داره. یعنی job container ها بدون privileged ساخته میشن — حتی اگه workflow بنویسه `options: --privileged`.
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**بخش ۲:** env var `CONFIG_FILE` در runner container ست نبود → `run.sh` فلگ `--config` رو به `act_runner daemon` پاس نمیداد → config.yaml اصلاً لود نمیشد!
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**راهحل (سمت سرور):**
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۱. ساخت ConfigMap:
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```yaml
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: runner-config
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namespace: default
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data:
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config.yaml: |
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log:
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level: info
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runner:
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file: .runner
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capacity: 1
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timeout: 3h
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container:
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privileged: true
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options: "--security-opt seccomp=unconfined --security-opt apparmor=unconfined"
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valid_volumes:
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- "**"
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```
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۲. Mount کردن در Deployment + env var:
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```bash
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kubectl patch deployment gitea-runner --type=json -p='[
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{"op":"add","path":"/spec/template/spec/containers/1/env/-",
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"value":{"name":"CONFIG_FILE","value":"/data/config.yaml"}},
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{"op":"add","path":"/spec/template/spec/containers/1/volumeMounts/-",
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"value":{"name":"runner-config","mountPath":"/data/config.yaml","subPath":"config.yaml"}},
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{"op":"add","path":"/spec/template/spec/volumes/-",
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"value":{"name":"runner-config","configMap":{"name":"runner-config"}}}
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]'
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```
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> ⚠️ **نکته مهم:** بدون `CONFIG_FILE=/data/config.yaml` env var، فایل `run.sh` داخل act_runner image فلگ `--config` رو پاس نمیده!
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---
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### مشکل ۵: Protobuf restore از nuget.org بجای Nexus
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**علت:** `dotnet restore` بدون `--configfile` از دیفالت NuGet sources استفاده میکنه.
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**راهحل:**
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```bash
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dotnet restore "$proj" --configfile src/NuGet.config
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```
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---
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### مشکل ۶: عدم دسترسی شبکه با `--bridge=none`
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**علت:** `dockerd --bridge=none` شبکه Docker bridge رو غیرفعال میکنه. در نتیجه container هایی که با `docker run` یا `docker build` ساخته میشن، دسترسی شبکه ندارن (مثلاً `dotnet restore` نمیتونه به Nexus وصل بشه).
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**راهحل:** استفاده از `--network host` در `docker run` و `docker build`:
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```bash
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# Protobuf step
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docker run --rm --network host -v $(pwd):/src -w /src ...
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# Build step
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DOCKER_BUILDKIT=0 docker build --network host -t ... .
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```
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---
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### مشکل ۷: `failed to prepare ... as ...: invalid argument` (BuildKit)
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**خطا:**
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```
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ERROR: failed to build: failed to solve: failed to prepare xxx as yyy: invalid argument
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```
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**علت:** BuildKit (بیلدر پیشفرض Docker ≥23) از snapshotter overlay استفاده میکنه که با `--storage-driver=vfs` سازگاری نداره.
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**راهحل:** غیرفعال کردن BuildKit:
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```bash
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DOCKER_BUILDKIT=0 docker build --network host -t ... .
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```
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> ⚠️ Legacy builder از vfs بدون مشکل استفاده میکنه.
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---
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## 🔄 تغییرات prod-deploy (قدیم → جدید)
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| مورد | قدیم (prod-deploy) | جدید |
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|------|-------------------|------|
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| Container image | `docker:latest` | `docker-sshpass:latest` (شامل sshpass + git) |
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| Proxy | `HTTP_PROXY` + `HTTPS_PROXY` | حذف شد (آفلاین) |
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| Registry | `gitea-svc:3000` + external | فقط `194.5.195.53:30080` |
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| kubectl | `apk add` + `curl` از اینترنت | SSH → `kubectl` مستقیم روی سرور |
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| Auth | hardcoded password | `secrets.REGISTRY_PASSWORD` + `secrets.SERVER_PASSWORD` |
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| BuildKit | فعال (دیفالت) | `DOCKER_BUILDKIT=0` |
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| Network | Docker bridge (دیفالت) | `--network host` |
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| dockerd | دیفالت | `--iptables=false --ip6tables=false --bridge=none --storage-driver=vfs` |
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| Deploy | `KUBECONFIG_PROD` (base64) | SSH + sshpass (مثل kub-stage) |
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> ✅ حالا همه ۶ K8s pipeline (۳ stage + ۳ prod) از **یک الگوی مشترک آفلاین** استفاده میکنن.
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---
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containers:
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- name: docker # DinD sidecar
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image: 194.5.195.53:32082/docker:dind
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securityContext:
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privileged: true
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env:
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- DOCKER_TLS_CERTDIR: ""
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volumeMounts:
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- /var/lib/docker → docker-storage
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- /etc/docker/daemon.json → docker-config (ConfigMap)
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- name: runner # Gitea act_runner
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image: 194.5.195.53:32082/gitea/act_runner:latest
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env:
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- GITEA_INSTANCE_URL: http://gitea-svc:3000
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- DOCKER_HOST: tcp://localhost:2375
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- CONFIG_FILE: /data/config.yaml # ← حیاتی! بدون این runner config لود نمیشه
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volumeMounts:
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- /data → runner-data
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- /data/config.yaml → runner-config (ConfigMap)
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```
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### ConfigMaps:
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| نام | محتوا | Mount Path |
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|-----|-------|------------|
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| `docker-daemon-config` | `daemon.json` با insecure-registries | `/etc/docker/daemon.json` |
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| `runner-config` | `config.yaml` با privileged + seccomp | `/data/config.yaml` |
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### Labels (ثبتشده در Gitea):
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```
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ubuntu-latest → docker://docker.gitea.com/runner-images:ubuntu-latest
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ubuntu-24.04 → docker://docker.gitea.com/runner-images:ubuntu-24.04
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ubuntu-22.04 → docker://docker.gitea.com/runner-images:ubuntu-22.04
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```
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---
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## 🔑 Secrets مورد نیاز (Gitea → Settings → Secrets)
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| Secret | استفاده |
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|--------|---------|
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| `REGISTRY_PASSWORD` | پسورد Docker registry (admin) |
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| `SERVER_PASSWORD` | پسورد SSH سرور (root) |
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---
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## 🔧 dockerd فلگهای نهایی
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```bash
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dockerd --iptables=false --ip6tables=false --bridge=none --storage-driver=vfs &
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```
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| Flag | دلیل |
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|------|-------|
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| `--iptables=false` | K3s اجازه تغییر iptables نمیده |
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| `--ip6tables=false` | مشابه بالا برای IPv6 |
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| `--bridge=none` | نیازی به Docker bridge network نیست |
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| `--storage-driver=vfs` | overlay2 نمیتونه mount کنه داخل K3s |
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---
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## 🔍 عیبیابی Pipeline
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### ۱. چک وضعیت Runner:
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```bash
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# SSH به سرور
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ssh root@194.5.195.53
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# آیا runner pod بالاست؟
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kubectl get pods -l app=gitea-runner
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# لاگ runner
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kubectl logs <pod-name> -c runner --tail=30
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# لاگ DinD
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kubectl logs <pod-name> -c docker --tail=30
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```
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### ۲. تست Docker داخل Runner:
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```bash
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# exec به DinD container
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kubectl exec <pod-name> -c docker -- docker info
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# آیا registry قابل دسترسیه؟
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kubectl exec <pod-name> -c docker -- docker pull 194.5.195.53:32082/dotnet/sdk:9.0
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```
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### ۳. چک config runner:
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```bash
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# آیا config.yaml mount شده؟
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kubectl exec <pod-name> -c runner -- cat /data/config.yaml
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# آیا privileged فعاله؟
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kubectl exec <pod-name> -c docker -- docker inspect <job-container> \
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--format '{{.HostConfig.Privileged}} {{.HostConfig.SecurityOpt}}'
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```
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### ۴. ریاستارت runner:
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```bash
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kubectl rollout restart deployment/gitea-runner
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kubectl rollout status deployment/gitea-runner --timeout=120s
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```
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---
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## 📋 Workflow Template (کامل)
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```yaml
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name: Build and Deploy to Kubernetes
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on:
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push:
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branches:
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- kub-stage
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env:
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REGISTRY: 194.5.195.53:30080
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IMAGE_NAME: admin/<service-name>
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K8S_SERVER: 194.5.195.53
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jobs:
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build-and-deploy:
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runs-on: ubuntu-latest
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container:
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image: 194.5.195.53:32082/docker-sshpass:latest
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options: --privileged
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steps:
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- name: Start Docker daemon
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run: |
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mkdir -p /etc/docker
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cat > /etc/docker/daemon.json << 'DAEMON'
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{
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"insecure-registries": ["194.5.195.53:30080", "194.5.195.53:32500", "194.5.195.53:32082"]
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}
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DAEMON
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dockerd --iptables=false --ip6tables=false --bridge=none --storage-driver=vfs &
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for i in $(seq 1 90); do
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if docker info >/dev/null 2>&1; then
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echo "✅ Docker ready"; break
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fi
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sleep 2
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done
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- name: Checkout code
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run: |
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git clone --depth 1 --branch kub-stage http://gitea-svc:3000/admin/<repo>.git .
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- name: Login to Docker registries
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run: |
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echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login 194.5.195.53:32082 -u admin --password-stdin
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echo "${{ secrets.REGISTRY_PASSWORD }}" | docker login ${{ env.REGISTRY }} -u admin --password-stdin
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- name: Build Docker Image
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run: |
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DOCKER_BUILDKIT=0 docker build --network host -t ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest .
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- name: Push to Registry
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run: |
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docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
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- name: Deploy to Kubernetes
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run: |
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export SSHPASS="${{ secrets.SERVER_PASSWORD }}"
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sshpass -e ssh -o StrictHostKeyChecking=no root@${{ env.K8S_SERVER }} "
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kubectl rollout restart deployment/<service>
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kubectl rollout status deployment/<service> --timeout=180s
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"
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```
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