K8S+GitLab-自動化分佈式部署ASP.NET Core(一) 部署環境

一.部署流程介紹

    開發人員經過Git上傳asp.net core 項目到Gilab,並編寫好.gitlab-ci.yml , GitLab-Runner 自動拉取代碼,而後進行Build,編譯,單元測試,生成鏡像,並推送到Harbor倉庫,docker 進行測試部署,最後部署部署到K8S.

      

 

二.集羣組件介紹

節點	IP	組件
Deploy	192.168.0.201	Breeze
Master01	192.168.0.202	Docker+loadbalancer+etc+K8S
Harbor	192.168.0.203	Harbor+DOcker
Work01	192.168.0.204	Docker+Gitlab
Work02	192.168.0.205	Docker+Gitlab-Runner

 

三.部署組件

 1.先部署K8S 環境.

推薦兩種部署方式:
1.https://github.com/wise2c-devops/breeze   (可視化Kubernetes集羣部署工具,注本篇的部署方式)
2.https://github.com/opsnull/follow-me-install-kubernetes-cluster  (手動部署)

  2.部署redis

docker-compose安裝推薦http://www.javashuo.com/article/p-cjdtxhcc-dk.html

  3.部署Gitlab,使用docker-compose方式,建立docker-compose.yml文件

version: '3'
services:
  gitlab:
    image: 'twang2218/gitlab-ce-zh'
    container_name: gitlab
    restart: unless-stopped
    environment:
      TZ: 'Asia/Shanghai'
      GITLAB_OMNIBUS_CONFIG: |
        external_url 'http://gitlab.evan.com'
        gitlab_rails['time_zone'] = 'Asia/Shanghai'
        #如下爲啓用郵件相關設置,我用的是QQ郵箱
        gitlab_rails['smtp_enable'] = true
        gitlab_rails['smtp_address'] = 'smtp.qq.com'
        gitlab_rails['smtp_port'] = 465
        gitlab_rails['smtp_user_name'] = '你的郵箱@qq.com'
        gitlab_rails['smtp_password'] = '郵箱密碼'
        gitlab_rails['smtp_domain'] = 'smtp.qq.com'
        gitlab_rails['smtp_authentication'] = 'plain'
        gitlab_rails['smtp_enable_starttls_auto'] = true
        gitlab_rails['smtp_tls'] = true
        gitlab_rails['gitlab_email_from'] = '你的郵箱@qq.com'
        user["git_user_email"] = '你的郵箱@qq.com'
        #修改sidekiq的數量，減小內存佔用，默認爲15，也能夠不填
        sidekiq['concurrency'] = 10
        #使用外部redis所需設置，根據剛剛生成的redis設置修改
        gitlab_rails['redis_port'] = 6379
        gitlab_rails['redis_host'] = '127.0.0.1'
        gitlab_rails['redis_password'] = '123'
        gitlab_rails['redis_database'] = '2'
        #由於22端口被佔用，修改映射的端口號時，同時修改在Gitlab項目中的ssh地址加上端口號
        gitlab_rails['gitlab_shell_ssh_port'] = 10022
    ports:
      - '10080:80'
      - '10443:443'
      - '10022:22'
    networks:
      - net_db
    volumes:
      - ./config:/etc/gitlab
      - gitlab-data:/var/opt/gitlab
      - ./logs:/var/log/gitlab
volumes:
  gitlab-data:
    external: true
networks:
  net_db:
    external: true

docker network create net_db
docker volume create gitlab-data
docker-compose up -d
docker-compose logs -f (查看部署狀態)

修改gitlab.rb文件
 external_url 'http://你的gitlab地址:10080'
 nginx['listen_port'] =80
docker-compose restart 

部署成功後Git運行如下命令:

Git global setup（Git全局設置）:
git config --global user.name "xxx"
git config --global user.email "xxx.com"

  ssh-keygen -t rsa -C "xxx@qq.com" -b 4096

 cat ~/.ssh/id_rsa.pub
 ssh -T -p 10022 git@localhost  (修改爲你的地址,測試是否鏈接成功)
 打印: Welcome to GitLab, @xxx!  說明成功了

 4.安裝部署Gitlab-Runner(CentOS7)

若是官方的Runner下載不了下載下面的
連接: https://pan.baidu.com/s/1q7ErwW53osI0LRy8SO8Gaw 提取碼: d9n7 
Gitlab-Runner服務器上安裝Git
yum install -y git

1.下載二進制文件
# Linux x86-64
 sudo wget -O /usr/local/bin/gitlab-runner https://gitlab-runner-downloads.s3.amazonaws.com/latest/binaries/gitlab-runner-linux-amd64
2.賦予它執行權限：
 sudo chmod +x /usr/local/bin/gitlab-runner
3.建立GitLab CI用戶：
 sudo useradd --comment 'GitLab Runner' --create-home gitlab-runner --shell /bin/bash
4.將gitlab ci用戶添加到docker運行用戶的組裏面
 sudo usermod -aG root gitlab-runner
 sudo usermod -aG docker gitlab-runner

5.安裝並做爲服務運行：
 sudo gitlab-runner install --user=gitlab-runner --working-directory=/home/gitlab-runner 
 sudo gitlab-runner start
6.註冊Gitlab-Runner ,shell 方式 
  sudo gitlab-runner register
  官網參考連接:https://docs.gitlab.com/runner/register/index.html
7.測試
 sudo -u gitlab-runner -H docker info
8.給Gitlab-Runner 執行kubectl權限,拷貝 /root/.kube 文件夾 到 gitlab-runner 用戶家目錄下，且修改此文件夾屬於 gitlab-runner用戶和組
chown -R gitlab-runner.gitlab-runner .kube
sudo -u gitlab-runner kubectl get cs

 5.安裝.NET Core SDK (CentOS7)

在部署Gitlab-Runner的機器上安裝SDK,由於Gitlab CI 要構建代碼和運行ASP.NET Core單元測試.

sudo rpm -Uvh https://packages.microsoft.com/config/rhel/7/packages-microsoft-prod.rpm

sudo yum update

sudo yum install dotnet-sdk-2.2

微軟官方安裝連接

 6.下一章節:ASP.NET Core  DevOps