一.容器使用
tech8 :: ~ » docker pull training/webapp # 载入镜像
tech8 :: ~ » docker run -d -P training/webapp python app.py
-d:让容器在后台运行。
-P:将容器内部使用的网络端口映射到我们使用的主机上。
tech8 :: ~ » docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cd204fd7b9a2 training/webapp "python app.py" About a minute ago Up About a minute 0.0.0.0:32768->5000/tcp reverent_edison
Docker 开放了 5000 端口（默认 Python Flask 端口）映射到主机端口 32769 上
http://127.0.0.1:32768/
我们也可以通过 -p 参数来设置不一样的端口:
itech8 :: ~ » docker run -d -p 1133:5000 training/webapp python app.py
c5f24273edac8da1b98af344620885888c6361fe5e547fb05a3f540adddfcb0c
itech8 :: ~ » docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c5f24273edac training/webapp "python app.py" 18 minutes ago Up 18 minutes 0.0.0.0:1133->5000/tcp frosty_yalow
2e1d9cc9578d training/webapp "python app.py" 20 minutes ago Up 20 minutes 5000/tcp, 0.0.0.0:5000->1133/tcp heuristic_visvesvaraya
cd204fd7b9a2 training/webapp "python app.py" 25 minutes ago Up 25 minutes 0.0.0.0:32768->5000/tcp reverent_edison
查看日志:
itech8 :: ~ » docker logs -f cd204fd7b9a2
- Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
172.17.0.1 - - [21/Jun/2019 09:15:10] "GET / HTTP/1.1" 200 -
172.17.0.1 - - [21/Jun/2019 09:15:11] "GET /favicon.ico HTTP/1.1" 404 -
172.17.0.1 - - [21/Jun/2019 09:15:26] "GET / HTTP/1.1" 200 -
172.17.0.1 - - [21/Jun/2019 09:15:27] "GET / HTTP/1.1" 200 -
172.17.0.1 - - [21/Jun/2019 09:15:54] "GET / HTTP/1.1" 200 -
172.17.0.1 - - [21/Jun/2019 09:15:55] "GET / HTTP/1.1" 200 -
itech8 :: ~ » docker top heuristic_visvesvaraya
PID USER TIME COMMAND
2536 root 0:00 python app.py
启动应用
docker start heuristic_visvesvaraya
关闭应用
docker stop heuristic_visvesvaraya
移除应用
docker rm heuristic_visvesvaraya
二.镜像
itech8 :: ~ » docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
mongo latest c1d6c06b5775 9 months ago 381MB
training/webapp latest 6fae60ef3446 4 years ago 349MB
training/webapp 是上一步安装的镜像
REPOSITORY：表示镜像的仓库源
TAG：镜像的标签
IMAGE ID：镜像ID
CREATED：镜像创建时间
SIZE：镜像大小
搜索镜像
docker search httpd
安装镜像
docker pull centos/httpd
运行镜像
docker run centos/httpd
容器命名
当我们创建一个容器的时候，docker 会自动对它进行命名。另外，我们也可以使用 --name 标识来命名容器，例如
docker run -d -P --name runoob training/webapp python app.py
ansible settle -m raw -a "docker exec -t settle-services tail -5 /var/log/settlement-services/201906/20190621-services.log"
ansible settle -m raw -a "docker exec -t settle-services tail -5 /var/log/settlement-services/201906/20190621-services.log"
ansible settle -m raw -a 'docker exec -t settle-services tail -5 /var/log/settlement-services/201906/20190621-api.log'
运维:
www.w3cschool.cn/auto...
