cloud/docker/upspinserver-build/trigger.yaml

{
        "description": "upspinserver",
        "triggerTemplate": {
                "project_id": "PROJECT_ID",
                "repo_name": "gcp",
                "branch_name": "master",
        },
        "build": {
                "steps": [
                        {
                                "name": "gcr.io/PROJECT_ID/upspinserver-build",
                                "env": [
                                        "COMMIT_SHA=$COMMIT_SHA",
                                ],
                        },
                        {
                                "name": "gcr.io/cloud-builders/docker",
                                "args": ["build", "--tag=gcr.io/upspin-containers/upspinserverSUFFIX", "."],
                        },
                ],
                "images": ["gcr.io/upspin-containers/upspinserverSUFFIX"],
        },
}