Please review the link before proceeding: Link

Retrieve the BlueData base image for CentOS 7 using bdwb command

bdwb --baseimg centos7

A CentOS 7 directory will be created in the current directory. Navigate to it.

cd centos7

To list the contents inside centos7 directory execute the below command

ls -a

Make sure the Build.sh, Makefile and Template are present.

Build.sh is a file that contains a build script to build the centos7 image

Makefile is a program building tool which runs on Unix or Linux

Template is a directory that houses the Dockerfile.template and limits-90-nproc.conf files

To add your organisation name to the build, run the following command:

Here we have used Organization name as BlueData

export BASE_IMG_ORGNAME='bluedata'

To identify your build, you add a build version to image. To do so run the following command:

export BASE_IMG_VERSION='1.0'

By default, the upstream image source is centos:centos7

export CENTOS7_UPSTREAM='centos:centos7'

where upstream is the name of the upstream image source, such as artifactory.com/enterprise:centos7. The default upstream image source is centos:centos7.

Make the new centos7 image by executing the following command:

make centos7

Verify that the image has built successfully by executing the below command:

docker images

docker images command will show all top level images, their repository, tags, and size.

Congratulations you have successfully created your base CentOS 7 image.