Docker - Install Docker on Linux

The dnf install or yum install command can be used to install Docker on Linux Red Hat distribution (CentOS, Fedora, Red Hat).

dnf install docker

 

The which command can be used to determine the absolute path to the docker command line tool.

which docker

 

Something like this should be returned.

/usr/bin/docker

 

The systemctl or service command can be used to start and enable docker.

systemctl enable docker
systemctl start docker

 

The docker run command can be used to pul the hello-world image from Docker hub.

docker run hello-world

 

Something like this should be returned.

Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
b8dfde127a29: Pull complete
Digest: sha256:5122f6204b6a3596e048758cabba3c46b1c937a46b5be6225b835d091b90e46c
Status: Downloaded newer image for hello-world:latest

Hello from Docker!
This message shows that your installation appears to be working correctly.

To generate this message, Docker took the following steps:
 1. The Docker client contacted the Docker daemon.
 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    (amd64)
 3. The Docker daemon created a new container from that image which runs the
    executable that produces the output you are currently reading.
 4. The Docker daemon streamed that output to the Docker client, which sent it
    to your terminal.

To try something more ambitious, you can run an Ubuntu container with:
 $ docker run -it ubuntu bash

Share images, automate workflows, and more with a free Docker ID:
 https://hub.docker.com/

For more examples and ideas, visit:
 https://docs.docker.com/get-started/

 

The docker images command should show that there is now a hello-world image.

~]# docker images
REPOSITORY    TAG       IMAGE ID       CREATED        SIZE
hello-world   latest    d1165f221234   3 months ago   13.3kB

 



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