docker常用命令
跳过了docker的安装, 可以自己搜索安装.
目录下面需要存在一个 Dockerfile的文件, 内容类似如下:
FROM python:3.11-slim WORKDIR /app RUN pip3 install flask RUN pip3 install Flask-Cors RUN pip3 install Flask-SQLAlchemy RUN pip3 install Flask-HTTPAuth RUN pip3 install requests RUN pip3 install gunicorn==21.2.0 RUN pip3 install gevent==23.7.0 RUN pip3 install PyMySQL==1.1.1 RUN pip3 install pycryptodome==3.18.0 RUN pip3 install PyJWT==2.6.0 COPY . . CMD ["gunicorn", "-w 1", "-k gevent", "-t 180", "-b 0.0.0.0:9001", "app:app"]
在当前目录中运行
1. docker buildx build --platform=linux/amd64 -t myname:taghello .
将当前目录打包成一个myname:taghello的镜像, 最后的.表示当前目录
2. docker ps -a
查看所有正在运行的镜像
3.docker run -it -d -p 9991:9001 镜像名
根据镜像名直接创建一个容器并运行, 并把docker容器子系统里的9991端口映射到主机的9001端口
下面例子中已经运行一个topoftop:devapi容器, 执行打包成docker, 打包成一个新镜像, 旧镜像的REPOSITORY TAG会变成空, 只有最新镜才用这指定的名字, 旧的镜象名字变空, 但原容器还原运行.
停了原容器, 运行新的镜像创建新容器并运行, 删除一个旧容器, 删除一个旧镜像
[ec2-user@ip-172-31-27-225 devapi]$ docker buildx build --platform=linux/amd64 -t topoftop:devapi . [+] Building 1.9s (18/18) FINISHED docker:default => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 533B 0.0s => [internal] load metadata for docker.io/library/python:3.11-slim 1.7s => [internal] load .dockerignore 0.0s => => transferring context: 2B 0.0s => [ 1/13] FROM docker.io/library/python:3.11-slim@sha256:e8381c802593deb0c4d25bd3f4e05e94382f6bf33090de22679fc7488cd68bbb 0.0s => => resolve docker.io/library/python:3.11-slim@sha256:e8381c802593deb0c4d25bd3f4e05e94382f6bf33090de22679fc7488cd68bbb 0.0s => [internal] load build context 0.0s => => transferring context: 26.32kB 0.0s => CACHED [ 2/13] WORKDIR /app 0.0s => CACHED [ 3/13] RUN pip3 install flask 0.0s => CACHED [ 4/13] RUN pip3 install Flask-Cors 0.0s => CACHED [ 5/13] RUN pip3 install Flask-SQLAlchemy 0.0s => CACHED [ 6/13] RUN pip3 install Flask-HTTPAuth 0.0s => CACHED [ 7/13] RUN pip3 install requests 0.0s => CACHED [ 8/13] RUN pip3 install gunicorn==21.2.0 0.0s => CACHED [ 9/13] RUN pip3 install gevent==23.7.0 0.0s => CACHED [10/13] RUN pip3 install PyMySQL==1.1.1 0.0s => CACHED [11/13] RUN pip3 install pycryptodome==3.18.0 0.0s => CACHED [12/13] RUN pip3 install PyJWT==2.6.0 0.0s => [13/13] COPY . . 0.1s => exporting to image 0.0s => => exporting layers 0.0s => => writing image sha256:4359cd9fb9d695371ddafbd2f84a97612f33f5cf1c4c1cd94b34add7e8fde9b1 0.0s => => naming to docker.io/library/topoftop:devapi 0.0s [ec2-user@ip-172-31-27-225 devapi]$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 032e399ea3f7 31ea28ea23af "gunicorn '-w 1' '-k…" 2 weeks ago Up 2 weeks 0.0.0.0:9991->9001/tcp, :::9991->9001/tcp keen_gould [ec2-user@ip-172-31-27-225 devapi]$ docker images REPOSITORY TAG IMAGE ID CREATED SIZE topoftop devapi 4359cd9fb9d6 23 seconds ago 228MB <none> <none> 31ea28ea23af 2 weeks ago 228MB [ec2-user@ip-172-31-27-225 devapi]$ docker stop 032e399ea3f7 032e399ea3f7 [ec2-user@ip-172-31-27-225 devapi]$ docker run -it -d -p 9991:9001 topoftop:devapi 68b7d79cd84603b1814991731e4528b6a3e110f527c879d3a55799989eeaef0e [ec2-user@ip-172-31-27-225 devapi]$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 68b7d79cd846 topoftop:devapi "gunicorn '-w 1' '-k…" 14 seconds ago Up 13 seconds 0.0.0.0:9991->9001/tcp, :::9991->9001/tcp inspiring_agnesi 032e399ea3f7 31ea28ea23af "gunicorn '-w 1' '-k…" 2 weeks ago Exited (0) 17 seconds ago keen_gould [ec2-user@ip-172-31-27-225 devapi]$ docker rm 032e399ea3f7 032e399ea3f7 [ec2-user@ip-172-31-27-225 devapi]$ docker rmi 31ea28ea23af Deleted: sha256:31ea28ea23afa206ba6cc03485c9be6c82e5a1bbdd111792a203066c5851dece [ec2-user@ip-172-31-27-225 devapi]$ docker ps -a CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 68b7d79cd846 topoftop:devapi "gunicorn '-w 1' '-k…" About a minute ago Up About a minute 0.0.0.0:9991->9001/tcp, :::9991->9001/tcp inspiring_agnesi
