Jenkins Active Choices for AWS ECR Image Tags

gistfile1.txt

properties(
    [
        parameters ([
            choice(
                name: 'ENVIRONMENT', choices: ['none','dev', 'qa'], description: 'Which environment do you want to deploy to?'
            ),
            [
                $class: 'CascadeChoiceParameter',
                choiceType: 'PT_SINGLE_SELECT',
                description: 'Select tag',
                filterLength: 1,
                filterable: false,
                name: 'TAG',
                script: [
                    $class: 'GroovyScript',
                    script: [
                    classpath: [],
                    sandbox: false,
                    script:
                        """
                            def tags = []
                            def cmd = "aws ecr describe-images --repository-name <image_name> --region eu-north-1 --filter tagStatus=TAGGED"
                            def proc = cmd.execute()
                            proc.waitFor()
                            def output = proc.in.text
                            def json = new groovy.json.JsonSlurper().parseText(output)
                            json.imageDetails.each { image ->
                                tags.add(image.imageTags[0])
                            }
                            return tags.sort().reverse()
                        """
                    ]
                ]
            ]
        ])
    ]
)

Turns out this is really horrible if you have a lot of images. Cool