tenant-config-pkg/mutations.yaml

# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# PolicyController mutations.
# https://cloud.google.com/anthos-config-management/docs/how-to/mutation#writing_mutators
---
# Adds a node affinity to all pods in a specific namespace
apiVersion: mutations.gatekeeper.sh/v1alpha1
kind: Assign
metadata:
  name: mutator-add-nodeaffinity # kpt-set: mutator-add-nodeaffinity-${tenant-name}
spec:
  applyTo:
    - groups: [""]
      kinds: ["Pod"]
      versions: ["v1"]
  match:
    namespaces:
      - "ns" # kpt-set: ${tenant-name}
  location: "spec.affinity.nodeAffinity.requiredDuringSchedulingIgnoredDuringExecution.nodeSelectorTerms"
  parameters:
    assign:
      value:
        - matchExpressions:
            - key: "tenant"
              operator: In
              values:
                - "ns" # kpt-set: ${tenant-name}
---
# Adds a toleration to all pods in a specific namespace
apiVersion: mutations.gatekeeper.sh/v1alpha1
kind: Assign
metadata:
  name: mutator-add-toleration # kpt-set: mutator-add-toleration-${tenant-name}
spec:
  applyTo:
    - groups: [""]
      kinds: ["Pod"]
      versions: ["v1"]
  match:
    namespaces:
      - "ns" # kpt-set: ${tenant-name}
  location: "spec.tolerations"
  parameters:
    assign:
      value:
        - key: "tenant"
          operator: "Equal"
          value: "ns" # kpt-set: ${tenant-name}
          effect: "NoExecute"