Manual upload of Docker images

Docker images can be manually uploaded to a STOR2RRD host with a restricted internet access.

Prerequisites

Linux host with Docker binaries and access to Docker Hub.

Procedure

Download and save images as tar files

• Login to your linux host with access to Docker hub

• Pull images from Docker Hub

  [root@vm]# docker pull confluentinc/cp-zookeeper:5.2.2
  [root@vm]# docker pull confluentinc/cp-kafka:5.2.2
  [root@vm]# docker pull confluentinc/cp-schema-registry:5.2.2

• List images to get their ID

  [root@vm]# docker image ls | grep -e "^confluentinc/cp-"
  confluentinc/cp-schema-registry   5.2.2     bcee4f9d8e6e   8 months ago   746MB
  confluentinc/cp-kafka             5.2.2     3b55c8e39607   8 months ago   569MB
  confluentinc/cp-zookeeper         5.2.2     7c9a8e8aab6c   8 months ago   569MB

• Save images as tar files to /tmp directory

  [root@vm]# docker image save --output /tmp/cp-schema-registry_522.tar  bcee4f9d8e6e
  [root@vm]# docker image save --output /tmp/cp-kafka_522.tar            3b55c8e39607
  [root@vm]# docker image save --output /tmp/cp-zookeeper_522.tar        7c9a8e8aab6c

Upload tar files to STOR2RRD host

Upload tar files to /tmp directory

Import images on STOR2RRD host

• Login to STOR2RRD host as root

• Import images

  [root@xorux]# docker image load --input /tmp/cp-schema-registry_522.tar
  [root@xorux]# docker image load --input /tmp/cp-kafka_522.tar
  [root@xorux]# docker image load --input /tmp/cp-zookeeper_522.tar