docker
基础使用
docker build时会把Dockerfile目录下的所有东西发往docker daemon, 可以增加一个’.dockerignore’文件来排除某些目录或文件。
docker run -d -p 80:80 --name webserver nginx
docker stop webserver
docker start webserver
docker rm -f webserver
docker run ubuntu /bin/echo 'Hello world'
docker run -it ubuntu /bin/bash
docker run -it --rm --entrypoint bash --rm openresty/openresty:xenial
images
docker images
docker rmi nginx # rm image
logs
docker logs -f b572ef09601c
inspect
docker inspect b572ef09601c
commit
docker commit -m 'add ruby' a2086b366560 notsobad/sinatra:v2
docker build -t notsobad/sinatra2 .
create tag
docker tag 0ec894288b89 notsobad/sinatra2:test
data volumn
使用data valumn
docker run -P -d --name web -v /webapp training/webapp python app.py
docker inspect web
mount dir
docker run -P -d --name web2 -v /opt/webapp:/opt/webapp training/webapp python app.py
mount local sources.list to docker container.
docker run -rm -it -v /Users/xxx/sources.list:/etc/apt/sources.list ubuntu /bin/bash
share volumes
docker create -v /dbdata --name dbstore training/postgres /bin/true
docker run -d --volumes-from dbstore --name db1 training/postgres
Execute a command in a running container
docker-compose exec nginx bash
>nginx -s reload
cleanup
delete unuesd container.
docker ps -q -f status=exited | xargs docker rm -f
remove all untagged images by combining docker rmi with the recent dangling=true query
docker images -q --filter "dangling=true" | xargs docker rmi
清理磁盘
docker system prune
docker volume prune
docker container prune
create service
docker service create --replicas 1 --name helloworld alpine ping www.baidu.com
docker service inspect helloworld
docker service ps helloworld
docker service logs helloworld
docker service rm helloworld
docker registry
创建registry
docker run -d -p 5000:5000 --restart=always --name registry -v /home/docker-registry:/var/lib/registry registry:2
docker tag ynm3k localhost:5000/ynm3k
docker push localhost:5000/ynm3k
list all images
从docker registry中列出所有镜像
curl -k https://gen8:5000/v2/_catalog -u admin:admin
curl -vv -u user:pass https://xxx:5000/v2/_catalog -k
curl -vv -u user:pass https://xxx:5000/v2/ynm3k/manifests/latest -k
restart policy
如果一个镜像是用docker up -d --restart=always方式启动的， 那么docker stop会停止镜像，但是下次系统重启依然会启动，
docker stop 98b2841e2ce5
# 查看重启策略
docker inspect -f "{{.HostConfig.RestartPolicy.Name}}" 98b2841e2ce5
# 调整重启策略
docker update --restart=no 72fd248a2a4f
docker-compose
create image from dockerfile
docker build -t web .
docker-compose up
docker-compose stop
run daemon service bash
docker-compose run daemon bash
docker-compose ps
docker exec -it gitlab bash