centos7升级docker-ce版本

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解决

env

  • cnetos7
  • docker1.3 -> docker26.1.3

1.stop && remove old docker

2.1停止当前运行的容器
docker stop xxx

2.2查询当前系统基于rpm安装docker
[root@ocr002 ~]# rpm -qa |grep docker 
docker-1.13.1-210.git7d71120.el7.centos.x86_64
docker-client-1.13.1-210.git7d71120.el7.centos.x86_64
docker-common-1.13.1-210.git7d71120.el7.centos.x86_64

2.3卸载docker
[root@ocr002 ~]# yum remove -y docker docker-client docker-common

2.install docker-26.1.3

2.1 tar && mv

tar zxf docker-26.1.3.tgz && mv docker/*  /usr/bin/

2.2 set docker.service

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tee > /usr/lib/systemd/system/docker.service <<'EOF'
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network-online.target docker.socket firewalld.service containerd.service time-set.target
Wants=network-online.target containerd.service
Requires=docker.socket

[Service]
Type=notify
# the default is not to use systemd for cgroups because the delegate issues still
# exists and systemd currently does not support the cgroup feature set required
# for containers run by docker
ExecStart=/usr/bin/dockerd -H unix:///var/run/docker.sock  --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutStartSec=0
RestartSec=2
Restart=always

# Note that StartLimit* options were moved from "Service" to "Unit" in systemd 229.
# Both the old, and new location are accepted by systemd 229 and up, so using the old location
# to make them work for either version of systemd.
StartLimitBurst=3

# Note that StartLimitInterval was renamed to StartLimitIntervalSec in systemd 230.
# Both the old, and new name are accepted by systemd 230 and up, so using the old name to make
# this option work for either version of systemd.
StartLimitInterval=60s

# Having non-zero Limit*s causes performance problems due to accounting overhead
# in the kernel. We recommend using cgroups to do container-local accounting.
LimitNPROC=infinity
LimitCORE=infinity
# Older systemd versions default to a LimitNOFILE of 1024:1024, which is insufficient for many
# applications including dockerd itself and will be inherited. Raise the hard limit, while
# preserving the soft limit for select(2).
LimitNOFILE=1024:524288

# Comment TasksMax if your systemd version does not support it.
# Only systemd 226 and above support this option.
TasksMax=infinity

# set delegate yes so that systemd does not reset the cgroups of docker containers
Delegate=yes

# kill only the docker process, not all processes in the cgroup
KillMode=process
OOMScoreAdjust=-500

[Install]
WantedBy=multi-user.target
EOF
tee >  /etc/docker/daemon.json <<EOF
{
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2"
}
EOF

2.3 启动docker

systemctl enable --now docker && systemctl status docker

极端情况下可以人工命令启动验证

dockerd \
  -H unix:///var/run/docker.sock \
  --containerd=/run/containerd/containerd.sock

日常查看

journalctl -u docker -f

3.启动服务

注意：之前老的服务必须删除重新新建才可以的。

docker-compose down
docker-compose up -d