-
Install required packages.
yum-utils
provides theyum-config-manager
utility, anddevice-mapper-persistent-data
andlvm2
are required by thedevicemapper
storage driver.$ sudo yum install -y yum-utils \ device-mapper-persistent-data \ lvm2
-
Use the following command to set up the stable repository.
$ sudo yum-config-manager \ --add-repo \ https://download.docker.com/linux/centos/docker-ce.repo
Optional: Enable the nightly or test repositories.
These repositories are included in the
docker.repo
file above but are disabled by default. You can enable them alongside the stable repository. The following command enables the nightly repository.$ sudo yum-config-manager --enable docker-ce-nightly
To enable the test channel, run the following command:
$ sudo yum-config-manager --enable docker-ce-test
You can disable the nightly or test repository by running the
yum-config-manager
command with the--disable
flag. To re-enable it, use the--enable
flag. The following command disables the nightly repository.$ sudo yum-config-manager --disable docker-ce-nightly
INSTALL DOCKER CE
-
Install the latest version of Docker CE and containerd, or go to the next step to install a specific version:
$ sudo yum install docker-ce docker-ce-cli containerd.io
Let's get started by modifying systemd's docker start up script. Open file/lib/systemd/system/docker.service
with your favorite text editor and replace the following line where/new/path/docker
is a location of your new chosen docker directory:FROM: ExecStart=/usr/bin/docker daemon -H fd:// TO: ExecStart=/usr/bin/docker daemon -g /new/path/docker -H fd://
When ready stop docker service:
# systemctl stop docker
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Subscribe to Linux Career NEWSLETTER and receive latest Linux news, jobs, career advice and tutorials.It is important here that you have completely stopped docker daemon. The following linux commandwill yield no output only if docker service is stopped:
# ps aux | grep -i docker | grep -v grep
If no output has been produced by the above command, reload systemd daemon:
# systemctl daemon-reload
Once this is done create a new directory you specified above and optionally
rsync
current docker data to a new directory:# mkdir /new/path/docker # rsync -aqxP /var/lib/docker/ /new/path/docker