Create the docker group: sudo groupadd docker (usually already exists). Add your user: sudo usermod -aG docker $USER . Log out and log back in for the changes to take effect.
To confirm that Docker is installed correctly and functioning, run the "hello-world" image: sudo docker run hello-world Use code with caution.
(When prompted to accept the GPG key, verify that the fingerprint matches 060A 61C5 1B55 8A7F 742B 77AA C52F EB6B 621E 9F35 and select .) Step 6: Start and Enable Docker download and install docker on centos 7
With the repository configured, you can now install the latest version of Docker Engine, containerd, and Docker Compose: sudo yum install docker-ce docker-ce-cli containerd.io Use code with caution.
Now, add the official Docker stable repository to your system: sudo yum-config-manager \ --add-repo \ https://docker.com Use code with caution. Step 5: Install Docker Engine Create the docker group: sudo groupadd docker (usually
You need the yum-utils package, which provides the yum-config-manager utility used to set up the repository. sudo yum install -y yum-utils Use code with caution. Step 4: Set Up the Docker Repository
If you have older versions of Docker (like docker or docker-engine ) installed, remove them to prevent conflicts: To confirm that Docker is installed correctly and
Before installing any new software, ensure your existing packages are up to date to avoid dependency conflicts. sudo yum update -y Use code with caution. Step 2: Remove Older Versions (If Applicable)