Docker is the latest OS-level virtualization system. Docker is a very easy tool designed to make applications using containers. So now I want to share how to install docker ce (Community Edition) on you centos 7 server. Some info for you What is Docker and why it is used? and What is the purpose of a docker?
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My Centos 7 server details
- OS Type : Centos 7
- DISK : 50GB
- RAM : 2GB
- vCPU : 2
Step #01 : Check your server like os version, disk space and memory using below command.
For server os version check.
[root@Docker-Server ~]# cat /etc/redhat-release
CentOS Linux release 7.5.1804 (Core) Disk space check using below command.
[root@Docker-Server ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 47G 981M 47G 3% /
devtmpfs 482M 0 482M 0% /dev
tmpfs 494M 0 494M 0% /dev/shm
tmpfs 494M 6.8M 487M 2% /run
tmpfs 494M 0 494M 0% /sys/fs/cgroup
/dev/xvda1 1014M 130M 885M 13% /boot
tmpfs 99M 0 99M 0% /run/user/0
Memory check using this command.
[root@Docker-Server ~]# free -h
total used free shared buff/cache available
Mem: 986M 104M 757M 6.7M 123M 733M
Swap: 2.0G 0B 2.0G
Step #02: Now update & upgrade your centos 7 server.
[root@Docker-Server ~]# yum check-update [root@Docker-Server ~]# yum update -y [root@Docker-Server ~]# yum install epel-release -y [root@Docker-Server ~]# reboot
Step #03: Install docker ce using below command for centos 7 server
[root@Docker-Server ~]# yum install -y yum-utils device-mapper-persistent-data lvm2 [root@Docker-Server ~]# yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo [root@Docker-Server ~]# yum install docker-ce docker-ce-cli containerd.io -y
Show docker-ce list using this command.
[root@Docker-Server ~]# yum list docker-ce --showduplicates | sort -r
* updates: mirrors.piconets.webwerks.in
Loading mirror speeds from cached hostfile
Loaded plugins: fastestmirror
Installed Packages
* extras: mirrors.piconets.webwerks.in
* epel: mirrors.piconets.webwerks.in
docker-ce.x86_64 3:19.03.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.8-3.el7 @docker-ce-stable
docker-ce.x86_64 3:19.03.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable
docker-ce.x86_64 3:18.09.0-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable
docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable
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 17.03.3.ce-1.el7 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
* base: mirrors.piconets.webwerks.in
Available Packages
Restart docker service
[root@Docker-Server ~]# systemctl start docker [root@Docker-Server ~]# systemctl status docker [root@Docker-Server ~]# systemctl enable docker [root@Docker-Server ~]# chkconfig docker on
Check how many docker process run.
[root@Docker-Server ~]# docker ps --all [root@Docker-Server ~]# docker image ls [root@Docker-Server ~]# usermod -aG docker root
Search centos docker
[root@Docker-Server ~]# docker search centos NAME DESCRIPTION STARS OFFICIAL AUTOMATED centos The official build of CentOS. 5925 [OK] ansible/centos7-ansible Ansible on Centos7 128 [OK] jdeathe/centos-ssh OpenSSH / Supervisor / EPEL/IUS/SCL Repos - … 114 [OK] consol/centos-xfce-vnc Centos container with "headless" VNC session… 113 [OK] centos/mysql-57-centos7 MySQL 5.7 SQL database server 74 imagine10255/centos6-lnmp-php56 centos6-lnmp-php56 58 [OK] tutum/centos Simple CentOS docker image with SSH access 45 centos/postgresql-96-centos7 PostgreSQL is an advanced Object-Relational … 43 centos/httpd-24-centos7 Platform for running Apache httpd 2.4 or bui… 31 kinogmt/centos-ssh CentOS with SSH 29 [OK] pivotaldata/centos-gpdb-dev CentOS image for GPDB development. Tag names… 11 guyton/centos6 From official centos6 container with full up… 10 [OK] centos/tools Docker image that has systems administration… 6 [OK] drecom/centos-ruby centos ruby 6 [OK] pivotaldata/centos Base centos, freshened up a little with a Do… 4 mamohr/centos-java Oracle Java 8 Docker image based on Centos 7 3 [OK] darksheer/centos Base Centos Image -- Updated hourly 3 [OK] pivotaldata/centos-gcc-toolchain CentOS with a toolchain, but unaffiliated wi… 3 pivotaldata/centos-mingw Using the mingw toolchain to cross-compile t… 3 miko2u/centos6 CentOS6 日本語環境 2 [OK] indigo/centos-maven Vanilla CentOS 7 with Oracle Java Developmen… 1 [OK] blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] pivotaldata/centos6.8-dev CentosOS 6.8 image for GPDB development 0 pivotaldata/centos7-dev CentosOS 7 image for GPDB development 0 smartentry/centos centos with smartentry 0 [OK]
Same as like Search ubuntu docker
Step #04: Now create docker centos using below command.
[root@Docker-Server ~]# docker pull centos
Wait 2-3 minute then see created done. Now check using command.
[root@Docker-Server ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
centos latest 470671670cac 2 months ago 237MB
Login into created docker centos
[root@Docker-Server ~]# docker run -it centos [root@836f2909f2a8 /]#
Exit from docker
[root@836f2909f2a8 /]# exit
Start or stop docker container using below command.
[root@Docker-Server ~]# docker start 836f2909f2a8 [root@Docker-Server ~]# docker stop 836f2909f2a8
This is container id : 836f2909f2a8
If see any problem so please see my YouTube video for more details. Don’t forget share this tutorial to your friends or social media network.
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