最长的路一般系统选用centos7，但是centos8出来了，恰巧两台服务器都是centos8，官方curl -sSL https://get.docker.com | sh安装方式默认会报错的，所以特别记录一下。
[[email protected] ~]# curl -sSL https://get.docker.com | sh # Executing docker install script, commit: f45d7c11389849ff46a6b4d94e0dd1ffebca32c1 + sh -c 'yum install -y -q yum-utils' + sh -c 'yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo' Adding repo from: https://download.docker.com/linux/centos/docker-ce.repo + '[' stable '!=' stable ']' + sh -c 'yum makecache' CentOS-8 - AppStream 1.5 kB/s | 4.3 kB 00:02 CentOS-8 - Base 1.4 kB/s | 3.8 kB 00:02 CentOS-8 - Extras 599 B/s | 1.5 kB 00:02 Docker CE Stable - x86_64 2.4 kB/s | 3.5 kB 00:01 Extra Packages for Enterprise Linux 8 - x86_64 4.2 kB/s | 7.2 kB 00:01 Metadata cache created. + '[' -n '' ']' + sh -c 'yum install -y -q docker-ce' Error: Problem: package docker-ce-3:19.03.3-3.el7.x86_64 requires containerd.io >= 1.2.2-3, but none of the providers can be installed - cannot install the best candidate for the job - package containerd.io-1.2.2-3.3.el7.x86_64 is excluded - package containerd.io-1.2.2-3.el7.x86_64 is excluded - package containerd.io-1.2.4-3.1.el7.x86_64 is excluded - package containerd.io-1.2.5-3.1.el7.x86_64 is excluded - package containerd.io-1.2.6-3.3.el7.x86_64 is excluded
报错信息显示需要安装containerd.io，所以正确的安装方式相比较CentOS7，会增加一个步骤。
国内加速安装
# install containerd.io [[email protected] ~]# dnf install -y https://download.docker.com/linux/centos/7/x86_64/nightly/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm # install docker-ce [[email protected] ~]# curl -sSL https://get.docker.com | sh
官方慢速安装
# install containerd.io [[email protected] ~]# dnf install -y https://download.docker.com/linux/centos/7/x86_64/nightly/Packages/containerd.io-1.2.6-3.3.el7.x86_64.rpm # install docker-ce [[email protected] ~]# curl -sSL https://get.docker.com | sh
启动Docker
[[email protected] ~]# systemctl enable --now docker Created symlink /etc/systemd/system/multi-user.target.wants/docker.service → /usr/lib/systemd/system/docker.service. [[email protected] ~]# docker version Client: Docker Engine - Community Version: 19.03.3 API version: 1.40 Go version: go1.12.10 Git commit: a872fc2f86 Built: Tue Oct 8 00:58:10 2019 OS/Arch: linux/amd64 Experimental: false Server: Docker Engine - Community Engine: Version: 19.03.3 API version: 1.40 (minimum version 1.12) Go version: go1.12.10 Git commit: a872fc2f86 Built: Tue Oct 8 00:56:46 2019 OS/Arch: linux/amd64 Experimental: false containerd: Version: 1.2.6 GitCommit: 894b81a4b802e4eb2a91d1ce216b8817763c29fb runc: Version: 1.0.0-rc8 GitCommit: 425e105d5a03fabd737a126ad93d62a9eeede87f docker-init: Version: 0.18.0 GitCommit: fec3683
超暴力安装Docker-compose
# install docker-compose from daocloud mirror [[email protected] ~]# curl -L https://get.daocloud.io/docker/compose/releases/download/1.24.1/docker-compose-`uname -s`-`uname -m` > /usr/local/bin/docker-compose [[email protected] ~]# chmod +x /usr/local/bin/docker-compose # makesure version [[email protected] ~]# docker-compose version docker-compose version 1.24.1, build 4667896b docker-py version: 3.7.3 CPython version: 3.6.8 OpenSSL version: OpenSSL 1.1.0j 20 Nov 2018
配置Docker加速
# use daocloud docker registry mirror [[email protected] ~]# echo '{"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}' >/etc/docker/daemon.json [[email protected] ~]# systemctl restart docker # makesure mirror [[email protected] ~]# docker info ··· Insecure Registries: 127.0.0.0/8 Registry Mirrors: http://f1361db2.m.daocloud.io/ Live Restore Enabled: false
