CentOS Tutorial – Today I am going to show you how to install Docker on CentOS 7.3 Server. As you know, Docker is a popular virtualization software. Installing Docker on CentOS 7.3 is very easy. When this post is written, Docker version 1.12 is available on CentOS repository.
Steps to install Docker on CentOS 7
Step 1. Install Docker
[root@centos-512mb-sgp1-01 ~]# yum install docker
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirror.vastspace.net
* extras: mirror.vastspace.net
* updates: mirror.vastspace.net
Resolving Dependencies
--> Running transaction check
---> Package docker.x86_64 2:1.12.6-16.el7.centos will be installed
--> Processing Dependency: docker-common = 2:1.12.6-16.el7.centos for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: docker-client = 2:1.12.6-16.el7.centos for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: oci-systemd-hook >= 1:0.1.4-9 for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: oci-register-machine >= 1:0-3.10 for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: lvm2 >= 2.02.112 for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: container-selinux >= 2:2.10-2 for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: skopeo-containers for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Processing Dependency: libseccomp.so.2()(64bit) for package: 2:docker-1.12.6-16.el7.centos.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.10-2.el7 will be installed
---> Package docker-client.x86_64 2:1.12.6-16.el7.centos will be installed
---> Package docker-common.x86_64 2:1.12.6-16.el7.centos will be installed
---> Package libseccomp.x86_64 0:2.3.1-2.el7 will be installed
---> Package lvm2.x86_64 7:2.02.166-1.el7_3.4 will be installed
--> Processing Dependency: lvm2-libs = 7:2.02.166-1.el7_3.4 for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
--> Processing Dependency: device-mapper-persistent-data >= 0.6.3-1 for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
--> Processing Dependency: liblvm2app.so.2.2(Base)(64bit) for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
--> Processing Dependency: libdevmapper-event.so.1.02(Base)(64bit) for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
--> Processing Dependency: liblvm2app.so.2.2()(64bit) for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
--> Processing Dependency: libdevmapper-event.so.1.02()(64bit) for package: 7:lvm2-2.02.166-1.el7_3.4.x86_64
---> Package oci-register-machine.x86_64 1:0-3.11.gitdd0daef.el7 will be installed
---> Package oci-systemd-hook.x86_64 1:0.1.7-2.git2788078.el7 will be installed
--> Processing Dependency: libyajl.so.2()(64bit) for package: 1:oci-systemd-hook-0.1.7-2.git2788078.el7.x86_64
---> Package skopeo-containers.x86_64 1:0.1.18-1.el7 will be installed
--> Running transaction check
---> Package device-mapper-event-libs.x86_64 7:1.02.135-1.el7_3.4 will be installed
---> Package device-mapper-persistent-data.x86_64 0:0.6.3-1.el7 will be installed
--> Processing Dependency: libaio.so.1(LIBAIO_0.4)(64bit) for package: device-mapper-persistent-data-0.6.3-1.el7.x86_64
--> Processing Dependency: libaio.so.1(LIBAIO_0.1)(64bit) for package: device-mapper-persistent-data-0.6.3-1.el7.x86_64
--> Processing Dependency: libaio.so.1()(64bit) for package: device-mapper-persistent-data-0.6.3-1.el7.x86_64
---> Package lvm2-libs.x86_64 7:2.02.166-1.el7_3.4 will be installed
--> Processing Dependency: device-mapper-event = 7:1.02.135-1.el7_3.4 for package: 7:lvm2-libs-2.02.166-1.el7_3.4.x86_64
---> Package yajl.x86_64 0:2.0.4-4.el7 will be installed
--> Running transaction check
---> Package device-mapper-event.x86_64 7:1.02.135-1.el7_3.4 will be installed
---> Package libaio.x86_64 0:0.3.109-13.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
================================================================================
Package Arch Version Repository
Size
================================================================================
Installing:
docker x86_64 2:1.12.6-16.el7.centos extras 14 M
Installing for dependencies:
container-selinux noarch 2:2.10-2.el7 extras 28 k
device-mapper-event x86_64 7:1.02.135-1.el7_3.4 updates 178 k
device-mapper-event-libs x86_64 7:1.02.135-1.el7_3.4 updates 177 k
device-mapper-persistent-data x86_64 0.6.3-1.el7 base 368 k
docker-client x86_64 2:1.12.6-16.el7.centos extras 3.2 M
docker-common x86_64 2:1.12.6-16.el7.centos extras 72 k
libaio x86_64 0.3.109-13.el7 base 24 k
libseccomp x86_64 2.3.1-2.el7 base 56 k
lvm2 x86_64 7:2.02.166-1.el7_3.4 updates 1.1 M
lvm2-libs x86_64 7:2.02.166-1.el7_3.4 updates 986 k
oci-register-machine x86_64 1:0-3.11.gitdd0daef.el7 extras 1.0 M
oci-systemd-hook x86_64 1:0.1.7-2.git2788078.el7 extras 30 k
skopeo-containers x86_64 1:0.1.18-1.el7 extras 7.6 k
yajl x86_64 2.0.4-4.el7 base 39 k
Transaction Summary
================================================================================
Install 1 Package (+14 Dependent packages)
Total download size: 21 M
Installed size: 71 M
Is this ok [y/d/N]:
Step 2. Start Docker
Use this command to start Docker
systemctl start docker systemctl enable docker
Don’t forget to check the status
docker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
Active: active (running) since Min 2017-05-14 14:50:39 UTC; 2min 3s ago
Docs: http://docs.docker.com
Main PID: 9444 (dockerd-current)
CGroup: /system.slice/docker.service
├─9444 /usr/bin/dockerd-current --add-runtime docker-runc=/usr/libexec/docker/docker-runc-current --default-runtime=docker-runc --exec-o...
└─9448 /usr/bin/docker-containerd-current -l unix:///var/run/docker/libcontainerd/docker-containerd.sock --shim docker-containerd-shim -...
Mei 14 14:50:38 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:38.932837169Z" level=warning msg="Docker could not enable ...ystem"
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:38.997821799Z" level=info msg="Graph migration to content-...conds"
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:38.999355806Z" level=info msg="Loading containers: start."
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.022003890Z" level=info msg="Firewalld running: false"
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.222060407Z" level=info msg="Default bridge (docker0) is...dress"
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.300726372Z" level=info msg="Loading containers: done."
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.300942149Z" level=info msg="Daemon has completed initialization"
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.300985000Z" level=info msg="Docker daemon" commit="3a09...1.12.6
Mei 14 14:50:39 centos-512mb-sgp1-01 systemd[1]: Started Docker Application Container Engine.
Mei 14 14:50:39 centos-512mb-sgp1-01 dockerd-current[9444]: time="2017-05-14T14:50:39.319986533Z" level=info msg="API listen on /var/run/docker.sock"
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Thank you for reading this post on how to install Docker on CentOS 7.3.
