Install Docker Manually

tar zxvf docker-27.3.1.tgz

mv docker/* /usr/bin

vim /usr/lib/systemd/system/docker.service

[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 fd:// --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 # 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

vim /usr/lib/systemd/system/docker.socket

[Unit] Description=Docker Socket for the API [Socket] # If /var/run is not implemented as a symlink to /run, you may need to # specify ListenStream=/var/run/docker.sock instead. ListenStream=/run/docker.sock SocketMode=0660 SocketUser=root SocketGroup=docker [Install] WantedBy=sockets.target

vim /usr/lib/systemd/system/containerd.servcie

# Copyright The containerd Authors. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. [Unit] Description=containerd container runtime Documentation=https://containerd.io After=network.target local-fs.target [Service] ExecStartPre=-/sbin/modprobe overlay # ExecStart=/usr/local/bin/containerd ExecStart=/usr/bin/containerd Type=notify Delegate=yes KillMode=process Restart=always RestartSec=5 # 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 # Comment TasksMax if your systemd version does not supports it. # Only systemd 226 and above support this version. TasksMax=infinity OOMScoreAdjust=-999 [Install] WantedBy=multi-user.target