Using Dockerfiles to Build Custom Images

Protegrity base images use the default RHEL Universal Base Image. Using Dockerfiles, you can use a base image of your choice.

To create custom image:

1. Download the installation package.

   For more information about downloading the installation package, refer to the section Extracting the Installation Package.

   Important: The dependency packages required for building the Docker images are specified in the HOW-TO-BUILD file, which is a part of the installation package. You must ensure that these dependency packages can be downloaded either from the Internet or from your internal repository.

2. Perform the following steps to build a Docker image for the REST container.

3. Run the following command to extract the files from the REST-SRC_<version_number>.tgz file to a directory.

tar -C <dir> REST-SRC_<version_number>.tgz

The following files are extracted:

• ImmutableApplicationProtectorRESTLinux_x64_<version_number>.tgz
• REST_RHUBI_DOCKERFILE_<version_number>
• docker-entrypoint.sh

4. Run the following command in the directory where you have extracted the contents of the REST-SRC_<version_number>.tgz file.

docker build --build-arg BUILDER_IMAGE=<Repository location of rhel ubi 9 base image> \
         --build-arg BASE_MICRO_IMAGE=<Repository location of rhel ubi 9 micro base image> \
         -t <image-name>:<image-tag> -f REST_RHUBI_DOCKERFILE_<version_number> .

For more information the Docker build command, refer to the Docker documentation.

For more information about tagging an image, refer to the AWS documentation.

5. Run the following command to list the REST container image.

docker images

6. Push the REST container image to your preferred Container Repository.

For more information about pushing an image to the repository, refer to the section Uploading the Images to the Container Repository.

7. Repeat step 2 - 6 for creating custom images for the RPProxy, KMSProxy, and Log Forwarder containers.
   Each extracted source package contains the corresponding Dockerfile. The steps to create custom images using the Dockerfile are same for all the images.