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+## Рекап успешной конфигурации
+
+---
+
+### 1. GitLab в Docker
+
+**Запуск контейнера** (уже был настроен, ключевое — порты):
+```bash
+docker run -d \
+  --hostname gitlab.local \
+  --publish 85:80 \
+  --publish 443:443 \
+  --publish 2223:22 \
+  --name gitlab \
+  --restart always \
+  -v /srv/gitlab/config:/etc/gitlab \
+  -v /srv/gitlab/logs:/var/log/gitlab \
+  -v /srv/gitlab/data:/var/opt/gitlab \
+  gitlab/gitlab-ce:latest
+```
+
+**Критическая настройка внутри контейнера** (чтобы nginx слушал на всех интерфейсах):
+```bash
+docker exec -it gitlab bash
+
+cat > /etc/gitlab/gitlab.rb << 'EOF'
+external_url 'http://10.0.2.15:85'
+nginx['listen_addresses'] = ['0.0.0.0']
+nginx['listen_port'] = 80
+EOF
+
+gitlab-ctl reconfigure
+exit
+docker restart gitlab
+```
+
+---
+
+### 2. GitLab Runner
+
+**Установка:**
+```bash
+sudo curl -L --output /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64
+sudo chmod +x /usr/local/bin/gitlab-runner
+sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash
+sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner
+sudo gitlab-runner start
+```
+
+**Регистрация** (`http://172.17.0.1:85` — IP docker bridge, доступный изнутри контейнеров):
+```bash
+sudo gitlab-runner register
+# URL: http://172.17.0.1:85
+# Token: [из GitLab → Settings → CI/CD → Runners]
+# Executor: docker
+# Default image: docker:latest
+```
+
+**Конфиг `/etc/gitlab-runner/config.toml`** (главное — `url` и `clone_url` на IP docker bridge):
+```toml
+[[runners]]
+  name = "gitlab-runner"
+  url = "http://172.17.0.1:85"
+  token = "..."
+  executor = "docker"
+  clone_url = "http://172.17.0.1:85"
+  
+  [runners.docker]
+    image = "docker:latest"
+    privileged = true
+```
+
+**Разрешить untagged jobs** в GitLab → Settings → CI/CD → Runners → Edit → ☑️ Run untagged jobs.
+
+---
+
+### 3. Структура проекта
+
+```
+myapp/
+├── main.go
+├── go.mod
+├── Dockerfile
+└── .gitlab-ci.yml
+```
+
+**`main.go`** — минимальный HTTP-сервер:
+```go
+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+)
+
+func main() {
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "Hello from CI/CD!\nVersion: 1.0.0\nTime: %s\n", time.Now().Format(time.RFC3339))
+	})
+
+	http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "application/json")
+		fmt.Fprintln(w, `{"status":"ok"}`)
+	})
+
+	fmt.Printf("Server starting on :%s\n", port)
+	http.ListenAndServe(":"+port, nil)
+}
+```
+
+**`go.mod`**:
+```text
+module myapp
+
+go 1.23
+```
+
+**`Dockerfile`** — копирует уже собранный бинарник (не собирает заново):
+```dockerfile
+FROM alpine:latest
+COPY server /server
+RUN chmod +x /server
+ENV PORT=8080
+EXPOSE 8080
+ENTRYPOINT ["/server"]
+```
+
+---
+
+### 4. CI/CD Pipeline (`.gitlab-ci.yml`)
+
+```yaml
+stages:
+  - build
+  - deploy
+
+build:
+  stage: build
+  image: golang:1.23-alpine
+  script:
+    - CGO_ENABLED=0 go build -ldflags="-s -w" -o server main.go
+  artifacts:
+    paths:
+      - server
+
+deploy:
+  stage: deploy
+  image: alpine:latest
+  dependencies:
+    - build
+  before_script:
+    - apk add --no-cache openssh-client
+    - mkdir -p ~/.ssh && chmod 700 ~/.ssh
+    - echo "$SSH_PRIVATE_KEY" > ~/.ssh/id_rsa && chmod 600 ~/.ssh/id_rsa
+    - ssh-keyscan -H $DEPLOY_HOST >> ~/.ssh/known_hosts
+  script:
+    - |
+      ssh $DEPLOY_USER@$DEPLOY_HOST "mkdir -p ~/myapp"
+      scp server Dockerfile $DEPLOY_USER@$DEPLOY_HOST:~/myapp/
+      ssh $DEPLOY_USER@$DEPLOY_HOST << EOF
+        set -e
+        cd ~/myapp
+        docker stop myapp || true
+        docker rm myapp || true
+        docker build -t myapp:latest .
+        docker run -d --name myapp --restart unless-stopped -p 8080:8080 myapp:latest
+        docker image prune -f
+        docker ps | grep myapp
+      EOF
+  only:
+    - master
+```
+
+---
+
+### 5. Целевой сервер (деплой)
+
+**SSH-ключи** (генерируем на сервере с GitLab):
+```bash
+ssh-keygen -t ed25519 -C "gitlab-deploy" -f ~/.ssh/gitlab_deploy
+```
+
+**На целевом сервере:**
+```bash
+sudo useradd -m -s /bin/bash deploy
+sudo usermod -aG docker deploy
+
+sudo mkdir -p /home/deploy/.ssh
+sudo nano /home/deploy/.ssh/authorized_keys
+# Вставить содержимое ~/.ssh/gitlab_deploy.pub
+
+sudo chmod 700 /home/deploy/.ssh
+sudo chmod 600 /home/deploy/.ssh/authorized_keys
+sudo chown -R deploy:deploy /home/deploy/.ssh
+sudo reboot
+```
+
+---
+
+### 6. GitLab Variables
+
+**Project → Settings → CI/CD → Variables:**
+
+| Variable | Значение |
+|----------|----------|
+| `SSH_PRIVATE_KEY` | Содержимое `~/.ssh/gitlab_deploy` (приватный ключ) |
+| `DEPLOY_HOST` | IP целевого сервера |
+| `DEPLOY_USER` | `deploy` |
+
+---
+
+### 7. Проверка деплоя
+
+```bash
+ssh deploy@<IP_сервера>
+docker ps
+curl http://localhost:8080
+curl http://localhost:8080/health
+```
+
+---
+
+### Итоговые цифры
+
+| Параметр | Значение |
+|----------|----------|
+| Размер Docker-образа приложения | ~10 МБ |
+| Внешних зависимостей | 0 |
+| Этапов CI/CD | 2 (build → deploy) |
+| Размер runner-образа | не критичен (используется стандартный alpine) |
+
+**Push в `master` → build → scp на сервер → docker build → docker run → приложение доступно на порту 8080.**
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