版本 23.0.0 , docker 安装 , docker目录迁移正确方法

docker 安装

docker 安装， https://docs.docker.com/engine/install/ubuntu/

# Add Docker's official GPG key:
sudo apt-get update
sudo apt-get install ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc

# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
sudo apt-get update


apt-cache madison docker-ce | awk '{ print $3 }'
VERSION_STRING=5:23.0.0-1~ubuntu.22.04~jammy
sudo apt-get install docker-ce=$VERSION_STRING docker-ce-cli=$VERSION_STRING containerd.io docker-buildx-plugin docker-compose-plugin

支付宝扫码登录 阿里云， 得到 docker 阿里云 个人 镜像加速 url， https://cr.console.aliyun.com/cn-hangzhou/instances/mirrors

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://fe2ajwut.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

docker目录迁移

查看docker占用空间

sudo du -d 1 -c -h -t 100MB /var/lib/docker

1.4G	/var/lib/docker/overlay2
19G	/var/lib/docker/volumes
20G	/var/lib/docker
20G	总计

docker版本 23.0.0

docker --version==Docker version 23.0.0, build e92dd87

错误方法

启动dockersudo systemctl start docker报错失败的方法:

1. 软链接 /var/lib/docker ---> /docker_data
2. "graph": "/docker_data"添加到 /etc/docker/daemon.json

正确方法

配置文件 /etc/docker/daemon.json中 添加字段 "data-root": "/docker_data"

该配置文件/etc/docker/daemon.json内容如下:

{
  "registry-mirrors": ["https://fe2ajwut.mirror.aliyuncs.com"],
  "data-root": "/docker_data"
}

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