drone是前google员工2013年开源的一个CI/CD工具,现在已经拉了投资商业化了。企业版是付费的,我们用的是免费版本。
drone引入pipline的概念,整个build过程由多个stage组成,每一个stage都是docker。
由开发者负责打包image和流程控制。Docker-in-docker, 这一点非常重要,一切都在掌握之中。相比jenkins的好处是,所有的image都是开发者提供,不需要运维参与在CI服务器上部署各种语言编译需要的环境。 是DevOps的最佳实践!
drone可以用docker-compose的方式,单机部署。为了节省服务器成本,我们在一台云主机上部署了两套drone,分别是drone0.5对应gitlab的private项目,drone0.7对应github的public项目。
drone secret需要跟环境变量里面的DRONE_HOST和DRONE_TOKEN绑定,所以只能用于drone0.5和drone0.7中的一个!
drone0.5是2017年3月发布的,如果使用了drone secret的话,每次修改了drone.xml都需要在drone的host上执行drone sign重新签名,非常麻烦。所以gitlab相关的private项目都是用drone0.5维护,drone.yml里面明文保存敏感信息(包括用户名、密码、主机名等),没有用drone secret.
drone0.7是2017年5月发布的,已经去掉了drone sign的限制。所以github的public项目因为安全考虑,加上了drone secret,drone.yml里面没有明文保存的敏感信息.
# docker ps
CONTAINER ID IMAGE COMMAND PORTS NAMES
095717b1c348 drone/drone:0.7 "/drone agent" 8002->8000/tcp dronegithub_drone-agent-github_1
fccf7fa84b7c drone/drone:0.7 "/drone server" 8001->8000/tcp dronegithub_drone-server-github_1
bfd48a1032f0 drone/drone:0.5 "/drone agent" 8000/tcp dronegitlab_drone-agent_1
09e9520b8c96 drone/drone:0.5 "/drone server" 8000->8000/tcp dronegitlab_drone-server_1
workspace:
base: /data/apps/opt
path: web-im
pipeline:
restore-cache:
image: drillster/drone-volume-cache
restore: true
mount:
- node_modules
- tag
volumes:
- /data/apps/opt/web-im:/cache
build:
image: node:7.8
privileged: true
commands:
- npm run build
- mkdir -p publish/demo/javascript
- cp -r demo/images publish/demo
- cp -r demo/stylesheet publish/demo
- cp -r demo/javascript/dist publish/demo/javascript/
- cp -r demo/javascript/src publish/demo/javascript/
- mkdir publish/sdk
- cp -r sdk/dist publish/sdk
- cp -r sdk/src publish/sdk
- cp sdk/*.* publish/sdk
- cp -r webrtc publish
- cp favicon.ico publish/
- cp index.html publish/
- cp CHANGELOG.md publish/
- cp package.json publish/
- cp webpack.config.js publish/
- cp README.md publish/
- cp .babelrc publish/
- cp -rf publish image/docker/webim/webim
- echo 'build success'
when:
branch: [ dev, online ]
dockerize-latest:
image: plugins/docker
environment:
- DOCKER_LAUNCH_DEBUG=true
debug: true
repo: docker-registry-cn.easemob.com/kubernetes/im/webim
tags: latest
registry: docker-registry-cn.easemob.com
secrets: [ docker_username, docker_password ]
dockerfile: image/docker/webim/Dockerfile
context: image/docker/webim/
when:
branch: dev
deploy-latest:
image: docker-registry-cn.easemob.com/kubernetes/im/webim-deploy:latest
pull: true
environment:
- DOCKER_LAUNCH_DEBUG=true
- TAG=latest
secrets: [ ssh_key, jumpserver_host, jumpserver_port, sandbox_host ]
debug: true
when:
branch: dev
dockerize-online:
image: plugins/docker
environment:
- DOCKER_LAUNCH_DEBUG=true
debug: true
repo: docker-registry-cn.easemob.com/kubernetes/im/webim
tags: ${DRONE_COMMIT:0:7}
registry: docker-registry-cn.easemob.com
secrets: [ docker_username, docker_password ]
dockerfile: image/docker/webim/Dockerfile
context: image/docker/webim/
when:
branch: online
deploy-online:
image: docker-registry-cn.easemob.com/kubernetes/im/webim-online:latest
pull: true
environment:
- DOCKER_LAUNCH_DEBUG=true
- TAG=${DRONE_COMMIT:0:7}
secrets: [ ssh_key, jumpserver_host, jumpserver_port, online_host ]
debug: true
when:
branch: online
rollback-online:
image: docker-registry-cn.easemob.com/kubernetes/im/webim-rollback:latest
pull: true
environment:
- DOCKER_LAUNCH_DEBUG=true
secrets: [ ssh_key, jumpserver_host, jumpserver_port, online_host ]
debug: true
when:
branch: rollback
rebuild-cache:
image: drillster/drone-volume-cache
rebuild: true
mount:
- node_modules
- tag
volumes:
- /data/apps/opt/web-im:/cache
notify:
image: drillster/drone-email
port: 25
secrets: [ plugin_host, plugin_from, plugin_username, plugin_password ]
when:
status: [ failure, success ]
dev分支提交,会自动build,打包image,push到harbor仓库,更新沙箱,发邮件通知
online分支提交,会自动build,打包image,push到harbor仓库,更新线上,更新image tag(线上回滚需要),发邮件通知
rollback分支提交,会使用image tag,回滚到上一次的线上版本, 发邮件通知
drone的官方插件在实际使用中有些小问题,一个是pluglins/docker没法缓存base image,每次build都需要重新拉取。非常浪费时间。二是官方的邮件插件有时会超时。我们都通过自定义的插件给解决了!现在我们组负责的项目,一共有5个微服务都是通过drone来控制CI/CD的,平均每天有十次左右git提交,CI/CD自动化,很快就能收到worktile的部署结果通知,非常方便!