presubmits:
  GoogleCloudPlatform/testgrid:
  - name: test-testgrid-all
    branches:
    - ^master$
    decorate: true
    always_run: true
    spec:
      containers:
      - image: launcher.gcr.io/google/bazel:0.29.1
        command:
        - bazel
        args:
        - test
        - //...

presubmits:
  GoogleCloudPlatform/testgrid:
  - name: test-testgrid-all
    branches:
    - ^master$
    decorate: true
    always_run: true
    spec:
      containers:
      - image: launcher.gcr.io/google/bazel:2.0.0
        command:
        - bazel
        args:
        - test
        - //...

Use bazel 2.0.0 in testgrid
Use bazel 2.0.0 in testgrid
