Create SOCI indexes with nerdctl and SOCI CLI example

Create SOCI indexes example

1. First set your variables for the AWS CLI commands that follow. The following is an example of setting up your variables.

   ACCOUNT_ID="111122223333"
   REGION="us-east-1"
   REPOSITORY_NAME="repository-name"
   ORIGINAL_IMAGE_TAG="original-image-tag"
   SOCI_IMAGE_TAG="soci-indexed-image-tag"

   Variable definitions:

   • ACCOUNT_ID is your AWS account ID

   • REGION is the AWS Region of your Amazon ECR private registry

   • REPOSITORY_NAME is the name of your Amazon ECR private registry

   • ORIGINAL_IMAGE_TAG is the tag of your original image

   • SOCI_IMAGE_TAG is the tag of your SOCI-indexed image

2. Install required tools:

   # Install SOCI CLI, containerd, and nerdctl
   sudo yum install soci-snapshotter
   sudo yum install containerd jq  
   sudo systemctl start soci-snapshotter
   sudo systemctl restart containerd
   sudo yum install nerdctl

3. Set your registry variables:

   REGISTRY_USER=AWS
   REGISTRY="$ACCOUNT_ID.dkr.ecr.$REGION.amazonaws.com"

4. Export your region and authenticate to Amazon ECR:

   export AWS_REGION=$REGION
   REGISTRY_PASSWORD=$(/usr/local/bin/aws ecr get-login-password --region $AWS_REGION)
   echo $REGISTRY_PASSWORD | sudo nerdctl login -u $REGISTRY_USER --password-stdin $REGISTRY

5. Pull your original container image:

   sudo nerdctl pull $REGISTRY/$REPOSITORY_NAME:$ORIGINAL_IMAGE_TAG

6. Create the SOCI index:

   sudo nerdctl image convert --soci $REGISTRY/$REPOSITORY_NAME:$ORIGINAL_IMAGE_TAG $REGISTRY/$REPOSITORY_NAME:$SOCI_IMAGE_TAG

7. Push the SOCI-indexed image:

   sudo nerdctl push --platform linux/amd64 $REGISTRY/$REPOSITORY_NAME:$SOCI_IMAGE_TAG