Docker rookie notes - summary 1

linux operation:

pwd
//View path

cp -r <> <>
//Copy directory

vim
//Edit files

ps -ef|grep nginx
//View filtering process

kill -9 PID
//Close the specified process

netstat -tlnp
//View network information

touch <>
//Create file

cat <>
//Expand file content

whereis nginx
//View all paths containing nginx

Docker useful operations

docker build -t < Dockerfile path>

docker images
//View all images

docker rmi <>
//Delete an image

docker ps -a
//View all containers

docker ps
//View the currently running container

Notes:

1. docker run -it -p 80:80 -v /www:/usr/share/nginx <Image name>
   Create an nginx image
   -it: perform interactive operations in the container, apply for a console, and use it in conjunction with the /bin/bash command
   -p: map the local port to the port in the container

2. boot2docker ssh
   Enter the bootdocker virtual host under windows. Only after entering can you operate docker

3. ctrl+p+q
   Exit the container's console (enter via -it ...../bin/bash)

4. docker run -rm and -d cannot be used at the same time
   -rm: Automatically delete the container after it stops
   -d: Use in the background

5. docker attach --sig-proxy=false CONTAINER
   attach container running in the background, add
   The –sig-proxy=false parameter can be detached via Ctrl+C, otherwise it cannot be canceled once attached.

6. I encountered a problem when running docker on Alibaba Cloud: Cannot connect to the Docker daemon. Is <br> 'docker -d' running on this host?
   The source of this problem is that docker stupidly chose an IP of 172.17.42.1 for the docker0 interface, and ECS happened to occupy 172.16.0.0/255.240.0.0.
   Modify /etc/default/docker, add DOCKER_OPTS="–bip=192.168.17.1/24", and restart. Be careful not to use 192.168.0.1/24, this address is also occupied.

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