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Dell PowerProtect Cyber Recovery 19.13 Installation Guide

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Migrating to Docker Community Edition

Migrate Docker Enterprise Edition (EE) from Mirantes to Docker Community Edition (CE).

Prerequisites

  • Docker EE is running on the Cyber Recovery deployment.
  • The current Cyber Recovery deployment is running version 19.13.
  • The Docker CE RPM download package is available.
  • The images that are present for the deployment are recorded for verification of the installed images during the migration procedure.

About this task

NOTE: Docker Enterprise Edition (EE) has been acquired by Mirantis and is now known as Mirantis Kubernetes Engine. For information about Mirantis Kubernetes Engine, see the Mirantis website.

Steps

  1. Create a backup copy of the existing deployment: 
    # ./crsetup.sh --save
  2. Uninstall Docker EE: 
    sudo yum -y remove docker-ee \ 
   docker-ee-cli \ 
   containerd.io  \ 
   container-selinux
    NOTE: Do not clean up Docker volumes and containers.
  3. Verify that Docker EE is removed: 
    # docker version
-bash: /usr/bin/docker: No such file or directory
 
# docker ps
-bash: /usr/bin/docker: No such file or directory
  4. Install Docker CE version 21.10 from the downloaded RPM package: 
    yum install -y <docker-rpm-path>/containerd.io-1.6.6-3.1.el7.x86_64.rpm <docker-rpm-path>/docker-ce-20.10.17-3.el7.x86_64.rpm <docker-rpm-path>/docker-ce-cli-20.10.17-3.el7.x86_64.rpm <docker-rpm-path>/dockerce-rootless-extras-20.10.17-3.el7.x86_64.rpm <docker-rpm-path>/docker-scanplugin-0.17.0-3.el7.x86_64.rpm
    NOTE: For more information, go to https://docs.docker.com/engine/install/.
  5. Verify that the present Docker images match the images that you recorded before performing the migration: 
    # docker images
  6. Verify that only the Cyber Recovery registry container is up and running: 
    # docker ps
CONTAINER ID IMAGE                               COMMAND                CREATED     STATUS        PORTS                       NNAMES
7141b913f9b0 localhost:14779/cr_registry:2.8.1.4 "/entrypoint.sh /etc…" 3 hours ago Up 15 seconds 127.0.0.1:14779->5000/tcp   cr_registry
  7. Start all Cyber Recovery services and verify that all containers are up and running: 
    # ./crsetup.sh --start
  8. Verify that the installation is successful by logging in to the Cyber Recovery UI.

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