Docker

Docker清理空间

Clean

docker system prune -a

查看Docker空间占用

df

docker system df

Docker ps 查看完整信息

Docker ps display the full command along

docker ps --no-trunc

mysql container won't start - Failed to initialize DD Storage Engine

docker-compose down -v - Which stops and removes all the running services and volumes.
docker system prune --volumes - Which completely removes volumes and cache.
docker-compose up -d - Which pulls and creates the services again.

修改Docker主目录设置

Relocating the Docker root directory

停止Docker服务

Stop the Docker services

systemctl stop docker
systemctl stop docker.socket
systemctl stop containerd

修改Docker配置文件

Edit the file /etc/docker/daemon.json. If the file does not exist,just create it.

{
  "data-root": "/path_to_you_want/docker"
}

启动Docker

Start the Docker services

systemctl start docker

验证

Validate

docker info -f '{{ .DockerRootDir}}'

使用非root用户运行docker

Run the Docker daemon as a non-root user (Rootless mode)

链接

在树莓派中安装docker

How to install docker and docker-compose on Raspberry Pi

# Update source
sudo apt-get update && sudo apt-get upgrade

# Install docker by shell script
curl -sSL https://get.docker.com | sh

# Add user to docker group
sudo usermod -aG docker [user_name]
# Add current user to docker group
sudo usermod -aG docker ${USER}
# Check it
groups ${USER}

# Install docker-compose
sudo apt-get install libffi-dev libssl-dev
sudo apt install python3-dev
sudo apt-get install -y python3 python3-pip
sudo pip3 install docker-compose

# Enable docker service on boot
sudo systemctl enable docker

# Run hello world
docker run hello-world

# Upgrade
sudo apt-get upgrade

# Uninstall
sudo apt-get purge docker-ce
sudo apt-get purge docker-ce-cli
sudo rm -rf /var/lib/docker