Oracle Linux Docker User’s Guide

Offical Reference Document

Update system kernel

The following commonds will run as root

sudo su -

Add proxy

cat > /etc/profile.d/proxy.sh <<- EOF
export http_proxy=PROXY_HOST
export https_proxy=PROXY_HOST
export no_proxy=localhost,127.0.0.1
EOF

Get the public-yum.ol7.repo

cd /etc/yum.repos.d
curl -o public-yum-ol7.repo  http://public-yum.oracle.com/public-yum-ol7.repo

Disable other repository source file

mv EPEL-ol7.repo EPEL-ol7.repo.bak
mv ULN-Base-ol7.repo ULN-Base-ol7.repo.bak

Edit the public-yum-ol7.repo file and change (enabled=) for each block {0 to disable 1 to enable}

vi public-yum-ol7.repo

-disable everything
-enable ol7_UEKR4

Upgrade system kernel to Unbreakable Enterprise Kernel Release 4 (UEK R4)

yum upgrade kernel*

Restart system using new kernel

init 6

Check System Kernel

uname -a

Install docker engine

vi /etc/yum.repos.d/public-yum-ol7.repo

• -enable ol7-latest
• -enable ol7-addons
• -disable everything else

Install Docker

yum install docker-engin

Docker Configuration

To config web proxy

[Service]
Environment=”HTTP_PROXY=proxy_URL:port”
Environment=”HTTPS_PROXY=proxy_URL:port”

Flush changes

systemctl daemon-reload

Docker Service

Start Docker daemon

systemctl start|restart docker

Start Docker at boot

systemctl enable docker

Non-root users to run docker cmds

Create the docker group

groupadd docker

Restart docker service

service docker restart

Add the users

usermod -a -G docker user1