Once the repo is configured successfully, we are good to install docker community edition. However, Docker provides the community edition for Centos which also can be installed on RHEL. Note: Docker community edition is not available for RHEL. The following command does all the actions for you. # yum install -y device-mapper-persistent-data lvm2 device-mapper yum-utilsĬonfigure the docker repository by pulling the repo file form docker website and save it in /etc/ directory. If not, please install the missing packages using yum command. ![]() Ensure that system is installed with following packages. You could verify the system architecture and kernel version using the following command. It also required Linux kernel version 3.8 and above. Docker supports only x86_64 (64-bit architecture). The default registry can be accessed using a browser at Docker Hub or using the docker search command.ġ. Docker registry: A Registry is a hosted service containing repositories of images which response to the Registry API.Docker container: A container is a runtime instance of a docker image.An image does not have state and it never changes. An image typically contains a union of layered filesystems stacked on top of each other. An Image is an ordered collection of root filesystem changes and the corresponding execution parameters for use within a container runtime. ![]() ![]()
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