tasks.xml

<task id="pull_docker_images">
    for image in $(printenv | grep '_docker_image=' | grep -v "grep" | cut -f1 -d'='); do
        image_value=${!image}

        if [[ -n "$image_value" ]]; then
            if docker images --format '{{.Repository}}:{{.Tag}}' | grep -q "^$image_value$"; then
                echo "Docker image $image_value already exists locally. Skipping pull."
            else
                echo "Pulling Docker image: $image_value"
                docker pull "$image_value"
            fi
        else
            echo "Warning: Variable $image has an empty value"
        fi
    done
</task>
<task id="cleanup_docker_images">
    for image in $(printenv | grep '_docker_image=' | grep -v "grep" | cut -f1 -d'='); do
        image_value=${!image}

        if [[ -n "$image_value" ]]; then
            if docker images --format '{{.Repository}}:{{.Tag}}' | grep -q "^$image_value$"; then
                docker rmi "$image_value"
            fi
        else
            echo "Warning: Variable $image has an empty value"
        fi
    done
</task>