Setup Docker Engine on Centos Offline

Let’s run a container with the command docker run --rm -it centos:7 bash as our operating environment.

$ docker run --rm -it centos:7 bash
[root@89b94344d402 /]#

Use the following command to setup the docker stable repository.

 [root@5879a18a8be4 ~]# curl -sSL https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/

Use the yum list docker-ce --showduplicates | sort -r to list all available docker-ce packages.

 [root@5879a18a8be4 ~]# yum list docker-ce --showduplicates | sort -r
 docker-ce.x86_64            18.03.0.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.12.1.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.12.0.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.09.1.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.09.0.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.06.2.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.06.1.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.06.0.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.03.2.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.03.1.ce-1.el7.centos             docker-ce-stable
 docker-ce.x86_64            17.03.0.ce-1.el7.centos             docker-ce-stable

Use repoquery -R docker-ce-17.12.0.ce-1.el7.centos to list all dependency packages.

You can also use yum deplist docker-ce-17.12.0.ce-1.el7.centos to list dependency packages.

 [root@5879a18a8be4 ~]# repoquery -R docker-ce-17.12.0.ce-1.el7.centos
 /bin/sh
 container-selinux >= 2.9
 device-mapper-libs >= 1.02.90-1
 iptables
 libc.so.6(GLIBC_2.17)(64bit)
 libcgroup
 libdevmapper.so.1.02()(64bit)
 libdevmapper.so.1.02(Base)(64bit)
 libdevmapper.so.1.02(DM_1_02_97)(64bit)
 libdl.so.2()(64bit)
 libdl.so.2(GLIBC_2.2.5)(64bit)
 libltdl.so.7()(64bit)
 libpthread.so.0()(64bit)
 libpthread.so.0(GLIBC_2.2.5)(64bit)
 libpthread.so.0(GLIBC_2.3.2)(64bit)
 libseccomp.so.2()(64bit)
 libsystemd.so.0()(64bit)
 libsystemd.so.0(LIBSYSTEMD_209)(64bit)
 rtld(GNU_HASH)
 systemd-units
 tar
 xz

Use the yum provides [libxxx] to find what package provides the given value libxxx. For example:

 # yum provides libdevmapper.so.1.02
 Loaded plugins: fastestmirror, ovl
 Loading mirror speeds from cached hostfile
  * base: mirrors.tuna.tsinghua.edu.cn
  * extras: mirrors.tuna.tsinghua.edu.cn
  * updates: mirrors.tuna.tsinghua.edu.cn
 7:device-mapper-libs-1.02.146-4.el7.i686 : Device-mapper shared library
 Repo        : base
 Matched from:
 Provides    : libdevmapper.so.1.02

Let’s make a directory named docker-ce and use yumdownloader --resolve docker-ce-17.12.0.ce-1.el7.centos to download docker-ce and all its dependency packages.

 [root@5879a18a8be4 ~]# mkdir docker-ce
 [root@5879a18a8be4 ~]# cd docker-ce
 [root@5879a18a8be4 docker-ce]# yumdownloader --resolve docker-ce device-mapper-libs systemd libseccomp -q
 warning: /root/docker-ce/audit-libs-python-2.7.6-3.el7.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
 Public key for audit-libs-python-2.7.6-3.el7.x86_64.rpm is not installed
 Public key for iptables-1.4.21-18.3.el7_4.x86_64.rpm is not installed
 Public key for container-selinux-2.42-1.gitad8f0f7.el7.noarch.rpm is not installed
 ...
 [root@5879a18a8be4 docker-ce]# ls
 audit-libs-2.8.1-3.el7_5.1.i686.rpm              libseccomp-2.3.1-3.el7.i686.rpm
 audit-libs-2.8.1-3.el7_5.1.x86_64.rpm            libseccomp-2.3.1-3.el7.x86_64.rpm
 audit-libs-python-2.8.1-3.el7_5.1.x86_64.rpm     libselinux-2.5-12.el7.i686.rpm
 bzip2-libs-1.0.6-13.el7.i686.rpm                 libselinux-2.5-12.el7.x86_64.rpm
 checkpolicy-2.5-6.el7.x86_64.rpm                 libselinux-python-2.5-12.el7.x86_64.rpm
 container-selinux-2.68-1.el7.noarch.rpm          libselinux-utils-2.5-12.el7.x86_64.rpm
 ...

Use the tar cf docker-ce.offline.tar *.rpm to pack the rpm packages.

 [root@5879a18a8be4 docker-ce]# tar cf docker-ce.offline.tar *.rpm

Copy the the docker-ce.offline.tar to the destination machine with scp or ftp etc..

 [root@5879a18a8be4 docker-ce]# scp docker-ce.offline.tar username@hostname:/dest_dir

Use the command rpm -ivh --replacepkgs --replacefiles *.rpm to install docker-ce.

 [root@9ddda0cd196d ~]# tar xf docker-ce.offline.tar
 [root@9ddda0cd196d ~]# ls
 audit-libs-2.8.1-3.el7_5.1.i686.rpm              libseccomp-2.3.1-3.el7.i686.rpm
 audit-libs-2.8.1-3.el7_5.1.x86_64.rpm            libseccomp-2.3.1-3.el7.x86_64.rpm
 audit-libs-python-2.8.1-3.el7_5.1.x86_64.rpm     libselinux-2.5-12.el7.i686.rpm
 bzip2-libs-1.0.6-13.el7.i686.rpm                 libselinux-2.5-12.el7.x86_64.rpm
 checkpolicy-2.5-6.el7.x86_64.rpm                 libselinux-python-2.5-12.el7.x86_64.rpm
 container-selinux-2.68-1.el7.noarch.rpm          libselinux-utils-2.5-12.el7.x86_64.rpm
 ...
 [root@9ddda0cd196d ~]# rpm -ivh --replacepkgs --replacefiles *.rpm
 warning: docker-ce-17.12.0.ce-1.el7.centos.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY
 Preparing...                          ################################# [100%]
 Updating / installing...
    1:libselinux-utils-2.5-11.el7      ################################# [  5%]
    2:policycoreutils-2.5-17.1.el7     ################################# [ 10%]
    3:selinux-policy-3.13.1-166.el7_4.9################################# [ 15%]
    4:libnfnetlink-1.0.1-4.el7         ################################# [ 20%]
    5:libcgroup-0.41-13.el7            ################################# [ 25%]
    6:selinux-policy-targeted-3.13.1-16################################# [ 30%]
 ...
   18:policycoreutils-python-2.5-17.1.e################################# [ 90%]
   19:container-selinux-2:2.42-1.gitad8################################# [ 95%]
 setsebool:  SELinux is disabled.
   20:docker-ce-17.12.0.ce-1.el7.centos################################# [100%]

Configure Docker to start on boot

 [root@9ddda0cd196d ~]# systemctl enable docker

Set the registry-mirrors array in /etc/docker/daemon.json to pull from the China registry mirror by default.

 [root@9ddda0cd196d ~]# mkdir -p /etc/docker
 [root@9ddda0cd196d ~]# bash -c 'cat << EOF > /etc/docker/daemon.json
 {
   "registry-mirrors": ["https://registry.docker-cn.com"]
 }
 EOF'

Start Docker

 [root@9ddda0cd196d ~]# systemctl start docker