SUSE12/15 安裝docker-ce19.03.13版本

官方不支持SUSE系統進行類似yum、apt-get方式安裝docker-ce，可以按照以下方式進行安裝。

前提

軟件	版本
SUSE	SUSE Linux Enterprise Server 12 SP2/SP5
Docker-ce	19.03.13

1、下載docker-ce軟件壓縮包

wget https://download.docker.com/linux/static/stable/x86_64/docker-19.03.13.tgz

2、解壓到/usr/local/bin目錄下

tar -zxvf docker-19.03.13.tgz
cp docker/* /usr/local/bin/.

3、編輯docker.service文件

新建/usr/lib/systemd/system/docker.service文件，添加如下參數

# cat /usr/lib/systemd/system/docker.service
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
BindsTo=containerd.service
After=network-online.target containerd.service
Wants=network-online.target
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/local/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecReload=/bin/kill -s HUP $MAINPID
TimeoutSec=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.
LimitNOFILE=infinity
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

[Install]
WantedBy=multi-user.target

4、編輯docker.socket文件

新建/usr/lib/systemd/system/docker.socket文件，添加如下參數

# cat /usr/lib/systemd/system/docker.socket
[Unit]
Description=Docker Socket for the API
PartOf=docker.service

[Socket]
ListenStream=/var/run/docker.sock
SocketMode=0660
SocketUser=root
SocketGroup=docker

[Install]
WantedBy=sockets.target

5、編輯containerd.service文件

新建/usr/lib/systemd/system/containerd.service文件，添加如下參數

# cat /usr/lib/systemd/system/containerd.service
[Unit]
Description=containerd container runtime
Documentation=https://containerd.io

[Service]
ExecStartPre=-/sbin/modprobe overlay
ExecStart=/usr/local/bin/containerd

Type=notify
Delegate=yes
KillMode=process
Restart=always
# 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
LimitNOFILE=1048576
# Comment TasksMax if your systemd version does not supports it.
# Only systemd 226 and above support this version.
TasksMax=infinity

[Install]
WantedBy=multi-user.target

6、啟動docker

systemctl start docker報錯：

# systemctl start docker
A dependency job for docker.service failed. See 'journalctl -xe' for details.

解決：需要創建docker用戶和組

useradd docker
groupadd docker
usermod -aG docker docker

再次啟動docker

systemctl start docker && systemctl enable docker

7、測試創建容器

docker run -it --rm alpine sh