manifests/operator.yaml

# Copyright 2025 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.

---
# Source: operator/templates/priorityclass.yaml
apiVersion: scheduling.k8s.io/v1
kind: PriorityClass
metadata:
  name: gmp-critical
# Maximum allowed user-defined. Only system-node-critical and system-cluster-critical
# pods are higher.
value: 1000000000
description: Used for GMP collector pods.
---
# Source: operator/templates/namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: gmp-system
---
# Source: operator/templates/namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
  name: gmp-public
---
# Source: operator/templates/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: collector
  namespace: gmp-system
---
# Source: operator/templates/serviceaccount.yaml
apiVersion: v1
kind: ServiceAccount
metadata:
  name: operator
  namespace: gmp-system
---
# Source: operator/templates/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: gmp-system:collector
rules:
- resources:
  - endpoints
  - nodes
  - nodes/metrics
  - pods
  - services
  apiGroups: [""]
  verbs: ["get", "list", "watch"]
- resources:
  - configmaps
  apiGroups: [""]
  verbs: ["get"]
- nonResourceURLs: ["/metrics"]
  verbs: ["get"]
---
# Source: operator/templates/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: gmp-system:operator
rules:
# Resources controlled by the operator.
- resources:
  - clusterpodmonitorings
  - clusterrules
  - globalrules
  - clusternodemonitorings
  - podmonitorings
  - rules
  apiGroups: ["monitoring.googleapis.com"]
  verbs: ["get", "list", "watch"]
- resources:
  - clusterpodmonitorings/status
  - clusterrules/status
  - globalrules/status
  - clusternodemonitorings/status
  - podmonitorings/status
  - rules/status
  apiGroups: ["monitoring.googleapis.com"]
  verbs: ["get", "patch", "update"]
- resources:
  - customresourcedefinitions
  resourceNames: ["verticalpodautoscalers.autoscaling.k8s.io"]
  apiGroups: ["apiextensions.k8s.io"]
  verbs: ["get"]
---
# Source: operator/templates/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: gmp-system:operator:webhook-admin
rules:
# Permission to inject CA bundles into webhook configs of fixed name.
- resources:
  - validatingwebhookconfigurations
  - mutatingwebhookconfigurations
  apiGroups: ["admissionregistration.k8s.io"]
  resourceNames:
  - gmp-operator.gmp-system.monitoring.googleapis.com
  verbs: ["get", "patch", "update", "watch"]
# Permission to delete legacy webhook config the operator directly created
# in previous versions.
- resources:
  - validatingwebhookconfigurations
  - mutatingwebhookconfigurations
  apiGroups: ["admissionregistration.k8s.io"]
  resourceNames:
  - gmp-operator
  verbs: ["delete"]
---
# Source: operator/templates/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: gmp-system:operator
roleRef:
  name: gmp-system:operator
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
- name: operator
  namespace: gmp-system
  kind: ServiceAccount
---
# Source: operator/templates/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: gmp-system:operator:webhook-admin
roleRef:
  name: gmp-system:operator:webhook-admin
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
- name: operator
  namespace: gmp-system
  kind: ServiceAccount
---
# Source: operator/templates/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
  name: gmp-system:collector
roleRef:
  name: gmp-system:collector
  kind: ClusterRole
  apiGroup: rbac.authorization.k8s.io
subjects:
- name: collector
  namespace: gmp-system
  kind: ServiceAccount
---
# Source: operator/templates/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: operator
  namespace: gmp-system
rules:
- resources:
  - pods
  apiGroups: [""]
  verbs: ["list", "watch"]
- resources:
  - secrets
  apiGroups: [""]
  verbs: ["list", "watch", "create"]
- resources:
  - secrets
  apiGroups: [""]
  resourceNames: ["collection", "rules", "alertmanager"]
  verbs: ["get", "patch", "update"]
- resources:
  - configmaps
  apiGroups: [""]
  verbs: ["list", "watch", "create"]
- resources:
  - configmaps
  apiGroups: [""]
  resourceNames: ["collector", "rule-evaluator", "rules-generated"]
  verbs: ["get", "patch", "update"]
- resources:
  - daemonsets
  apiGroups: ["apps"]
  resourceNames: ["collector"]
  verbs: ["get", "list", "watch"]
- resources:
  - deployments
  apiGroups: ["apps"]
  resourceNames: ["rule-evaluator"]
  verbs: ["get", "list", "watch"]
- resources:
  - deployments/scale
  apiGroups: ["apps"]
  resourceNames: ["rule-evaluator"]
  verbs: ["get", "patch", "update"]
- resources:
  - services
  apiGroups: [""]
  resourceNames: ["alertmanager"]
  verbs: ["get", "list", "watch"]
- resources:
  - statefulsets
  apiGroups: ["apps"]
  resourceNames: ["alertmanager"]
  verbs: ["get", "list", "watch"]
- resources:
  - statefulsets/scale
  apiGroups: ["apps"]
  resourceNames: ["alertmanager"]
  verbs: ["get", "patch", "update"]
- resources:
  - verticalpodautoscalers
  apiGroups: ["autoscaling.k8s.io"]
  verbs: ["create", "delete", "get", "list", "watch"]
---
# Source: operator/templates/role.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: operator
  namespace: gmp-public
rules:
- resources:
  - secrets
  apiGroups: [""]
  verbs: ["get", "list", "watch"]
- resources:
  - operatorconfigs
  apiGroups: ["monitoring.googleapis.com"]
  verbs: ["get", "update", "list", "watch"]
---
# Source: operator/templates/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: operator
  namespace: gmp-public
roleRef:
  name: operator
  kind: Role
  apiGroup: rbac.authorization.k8s.io
subjects:
- name: operator
  namespace: gmp-system
  kind: ServiceAccount
---
# Source: operator/templates/rolebinding.yaml
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: operator
  namespace: gmp-system
roleRef:
  name: operator
  kind: Role
  apiGroup: rbac.authorization.k8s.io
subjects:
- name: operator
  kind: ServiceAccount
---
# Source: operator/templates/alertmanager.yaml
apiVersion: v1
kind: Service
metadata:
  name: alertmanager
  namespace: gmp-system
spec:
  selector:
    app: managed-prometheus-alertmanager
    app.kubernetes.io/name: alertmanager
  ports:
  - name: alertmanager
    port: 9093
    targetPort: 9093
  clusterIP: None
---
# Source: operator/templates/rule-evaluator.yaml
apiVersion: v1
kind: Service
metadata:
  name: rule-evaluator
  namespace: gmp-system
spec:
  selector:
      app.kubernetes.io/name: rule-evaluator
  ports:
    - name: rule-evaluator
      port: 19092
      targetPort: 19092
---
# Source: operator/templates/service.yaml
apiVersion: v1
kind: Service
metadata:
  name: gmp-operator
  namespace: gmp-system
spec:
  selector:
    app.kubernetes.io/component: operator
    app.kubernetes.io/name: gmp-operator
    app.kubernetes.io/part-of: gmp
  ports:
  # This port does not do anything, but allows upgrades in the case
  # of server-side apply (SSA) conflicts.
  # TODO(pintohutch): remove once the SSA issues from upgrades are resolved.
  - name: legacy
    protocol: TCP
    port: 8443
    targetPort: webhook
  - name: webhook
    protocol: TCP
    port: 443
    targetPort: web
---
# Source: operator/templates/collector.yaml
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: collector
  namespace: gmp-system
spec:
  selector:
    matchLabels:
      # DO NOT MODIFY - label selectors are immutable by the Kubernetes API.
      # see: https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/#pod-selector.
      app.kubernetes.io/name: collector
  template:
    metadata:
      labels:
        app: managed-prometheus-collector
        app.kubernetes.io/name: collector
        app.kubernetes.io/version: 0.15.0
      annotations:
        # The emptyDir for the storage and config directories prevents cluster
        # autoscaling unless this annotation is set.
        cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
        components.gke.io/component-name: managed_prometheus
    spec:
      serviceAccountName: collector
      automountServiceAccountToken: true
      priorityClassName: gmp-critical
      initContainers:
      - name: config-init
        image: gke.gcr.io/gke-distroless/bash:gke_distroless_20240907.00_p0
        command: ['/bin/bash', '-c', 'touch /prometheus/config_out/config.yaml']
        volumeMounts:
        - name: config-out
          mountPath: /prometheus/config_out
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      containers:
      - name: config-reloader
        image: gke.gcr.io/prometheus-engine/config-reloader:v0.15.0-gke.12
        args:
        - --config-file=/prometheus/config/config.yaml
        - --config-file-output=/prometheus/config_out/config.yaml
        - --reload-url=http://127.0.0.1:19090/-/reload
        - --ready-url=http://127.0.0.1:19090/-/ready
        - --listen-address=:19091
        ports:
        - name: cfg-rel-metrics
          containerPort: 19091
        env:
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: spec.nodeName
        resources:
          limits:
            memory: 32M
          requests:
            cpu: 1m
            memory: 4M
        volumeMounts:
        - name: config
          readOnly: true
          mountPath: /prometheus/config
        - name: config-out
          mountPath: /prometheus/config_out
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      - name: prometheus
        image: gke.gcr.io/prometheus-engine/prometheus:v2.45.3-gmp.9-gke.0
        args:
        - --config.file=/prometheus/config_out/config.yaml
        - --enable-feature=exemplar-storage
        # Special Google flag for authorization using native Kubernetes secrets.
        - --enable-feature=google-kubernetes-secret-provider
        - --storage.tsdb.path=/prometheus/data
        - --storage.tsdb.no-lockfile
        # Special Google flag for force deleting all data on start. We use ephemeral storage in
        # this manifest, but there are cases were container restart still reuses, potentially
        # bad data (corrupted, with high cardinality causing OOMs or slow startups).
        # Force deleting, so container restart is consistent with pod restart.
        # NOTE: Data is likely already sent GCM, plus GCM export does not use that
        # data on disk (WAL).
        - --gmp.storage.delete-data-on-start
        # Keep 30 minutes of data. As we are backed by an emptyDir volume, this will count towards
        # the containers memory usage. We could lower it further if this becomes problematic, but
        # it the window for local data is quite convenient for debugging.
        - --storage.tsdb.retention.time=30m
        - --storage.tsdb.wal-compression
        # Effectively disable compaction and make blocks short enough so that our retention window
        # can be kept in practice.
        - --storage.tsdb.min-block-duration=10m
        - --storage.tsdb.max-block-duration=10m
        - --web.listen-address=:19090
        - --web.enable-lifecycle
        - --web.route-prefix=/
        - --export.user-agent-mode=kubectl
        # JSON log format is needed for GKE to display log levels correctly.
        - --log.format=json
        ports:
        - name: prom-metrics
          containerPort: 19090
        # The environment variable EXTRA_ARGS will be populated by the operator.
        # DO NOT specify it here.
        env:
        - name: GOGC
          value: "25"
        resources:
          limits:
            memory: 2G
          requests:
            cpu: 4m
            memory: 32M
        volumeMounts:
        - name: storage
          mountPath: /prometheus/data
        - name: config-out
          readOnly: true
          mountPath: /prometheus/config_out
        - name: collection-secret
          readOnly: true
          mountPath: /etc/secrets
        livenessProbe:
          httpGet:
            port: 19090
            path: /-/healthy
            scheme: HTTP
        readinessProbe:
          httpGet:
            port: 19090
            path: /-/ready
            scheme: HTTP
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      volumes:
      - name: storage
        emptyDir: {}
      - name: config
        configMap:
          name: collector
      - name: config-out
        emptyDir: {}
      - name: collection-secret
        secret:
          secretName: collection
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/arch
                operator: In
                values:
                - arm64
                - amd64
              - key: kubernetes.io/os
                operator: In
                values:
                - linux
      tolerations:
      - key: "components.gke.io/gke-managed-components"
        operator: "Exists"
      - effect: NoExecute
        operator: Exists
      - effect: NoSchedule
        operator: Exists
      securityContext:
        runAsGroup: 1000
        runAsNonRoot: true
        runAsUser: 1000
        seccompProfile:
          type: RuntimeDefault
---
# Source: operator/templates/deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: gmp-operator
  namespace: gmp-system
  labels:
    app: managed-prometheus-operator
    app.kubernetes.io/component: operator
    app.kubernetes.io/name: gmp-operator
    app.kubernetes.io/part-of: gmp
spec:
  replicas: 1
  selector:
    matchLabels:
      # DO NOT MODIFY - label selectors are immutable by the Kubernetes API.
      # see: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#label-selector-updates.
      app.kubernetes.io/component: operator
      app.kubernetes.io/name: gmp-operator
      app.kubernetes.io/part-of: gmp
  template:
    metadata:
      labels:
        app: managed-prometheus-operator
        app.kubernetes.io/component: operator
        app.kubernetes.io/name: gmp-operator
        app.kubernetes.io/part-of: gmp
        app.kubernetes.io/version: 0.15.0
    spec:
      serviceAccountName: operator
      automountServiceAccountToken: true
      priorityClassName: gmp-critical
      containers:
      - name: operator
        image: gke.gcr.io/prometheus-engine/operator:v0.15.0-gke.12
        args:
        - "--operator-namespace=gmp-system"
        - "--public-namespace=gmp-public"
        - "--webhook-addr=:10250"
        ports:
        - name: web
          # Note this should match the --listen-addr flag passed in to the operator args.
          # Default is 10250.
          containerPort: 10250
        - name: metrics
          # Note this should match the --metrics-addr flag passed in to the operator args.
          # Default is 18080.
          containerPort: 18080
        resources:
          limits:
            memory: 2G
          requests:
            cpu: 1m
            memory: 16M
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
        livenessProbe:
          httpGet:
            path: /healthz
            # Note this should match the --probe-addr flag passed in to the operator args.
            # Default is 18081.
            port: 18081
            scheme: HTTP
        readinessProbe:
          httpGet:
            path: /readyz
            # Note this should match the --probe-addr flag passed in to the operator args.
            # Default is 18081.
            port: 18081
            scheme: HTTP
        volumeMounts:
        - name: certs
          mountPath: /etc/tls/private
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/arch
                operator: In
                values:
                - arm64
                - amd64
              - key: kubernetes.io/os
                operator: In
                values:
                - linux
      tolerations:
      - key: "components.gke.io/gke-managed-components"
        operator: "Exists"
      - value: "amd64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      - value: "arm64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      securityContext:
        runAsGroup: 1000
        runAsNonRoot: true
        runAsUser: 1000
        seccompProfile:
          type: RuntimeDefault
      volumes:
      - name: certs
        emptyDir: {}
---
# Source: operator/templates/rule-evaluator.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: rule-evaluator
  namespace: gmp-system
spec:
  selector:
    matchLabels:
      # DO NOT MODIFY - label selectors are immutable by the Kubernetes API.
      # see: https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#label-selector-updates.
      app.kubernetes.io/name: rule-evaluator
  template:
    metadata:
      labels:
        app.kubernetes.io/name: rule-evaluator
        app: managed-prometheus-rule-evaluator
        app.kubernetes.io/version: 0.15.0
      annotations:
        # The emptyDir for the storage and config directories prevents cluster
        # autoscaling unless this annotation is set.
        cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
        components.gke.io/component-name: managed_prometheus
    spec:
      serviceAccountName: collector
      automountServiceAccountToken: true
      priorityClassName: gmp-critical
      initContainers:
      - name: config-init
        image: gke.gcr.io/gke-distroless/bash:gke_distroless_20240907.00_p0
        command: ['/bin/bash', '-c', 'touch /prometheus/config_out/config.yaml']
        volumeMounts:
        - name: config-out
          mountPath: /prometheus/config_out
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      containers:
      - name: config-reloader
        image: gke.gcr.io/prometheus-engine/config-reloader:v0.15.0-gke.12
        args:
        - --config-file=/prometheus/config/config.yaml
        - --config-file-output=/prometheus/config_out/config.yaml
        - --config-dir=/etc/rules
        - --config-dir-output=/prometheus/rules_out
        - --watched-dir=/etc/secrets
        - --reload-url=http://127.0.0.1:19092/-/reload
        - --ready-url=http://127.0.0.1:19092/-/ready
        - --listen-address=:19093
        ports:
        - name: cfg-rel-metrics
          containerPort: 19093
        resources:
          limits:
            memory: 32M
          requests:
            cpu: 1m
            memory: 4M
        volumeMounts:
        - name: config
          readOnly: true
          mountPath: /prometheus/config
        - name: config-out
          mountPath: /prometheus/config_out
        - name: rules
          readOnly: true
          mountPath: /etc/rules
        - name: rules-out
          mountPath: /prometheus/rules_out
        - name: rules-secret
          readOnly: true
          mountPath: /etc/secrets
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      - name: evaluator
        image: gke.gcr.io/prometheus-engine/rule-evaluator:v0.15.0-gke.12
        args:
        - --config.file=/prometheus/config_out/config.yaml
        - --web.listen-address=:19092
        - --export.user-agent-mode=kubectl
        ports:
        - name: r-eval-metrics
          containerPort: 19092
        resources:
          limits:
            memory: 1G
          requests:
            cpu: 1m
            memory: 16M
        volumeMounts:
        - name: config-out
          readOnly: true
          mountPath: /prometheus/config_out
        - name: rules-out
          readOnly: true
          mountPath: /etc/rules
        - name: rules-secret
          readOnly: true
          mountPath: /etc/secrets
        livenessProbe:
          httpGet:
            port: 19092
            path: /-/healthy
            scheme: HTTP
        readinessProbe:
          httpGet:
            port: 19092
            path: /-/ready
            scheme: HTTP
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      volumes:
      - name: config
        configMap:
          name: rule-evaluator
          defaultMode: 420
      - name: config-out
        emptyDir: {}
      - name: rules
        configMap:
          name: rules-generated
          defaultMode: 420
      - name: rules-out
        emptyDir: {}
      - name: rules-secret
        secret:
          defaultMode: 420
          secretName: rules
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/arch
                operator: In
                values:
                - arm64
                - amd64
              - key: kubernetes.io/os
                operator: In
                values:
                - linux
      tolerations:
      - key: "components.gke.io/gke-managed-components"
        operator: "Exists"
      - value: "amd64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      - value: "arm64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      securityContext:
        runAsGroup: 1000
        runAsNonRoot: true
        runAsUser: 1000
        seccompProfile:
          type: RuntimeDefault
---
# Source: operator/templates/alertmanager.yaml
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: alertmanager
  namespace: gmp-system
spec:
  selector:
    matchLabels:
      # DO NOT MODIFY - label selectors are immutable by the Kubernetes API.
      # see: https://kubernetes.io/docs/concepts/workloads/controllers/statefulset/#pod-selector.
      app: managed-prometheus-alertmanager
      app.kubernetes.io/name: alertmanager
  template:
    metadata:
      labels:
        app: managed-prometheus-alertmanager
        app.kubernetes.io/name: alertmanager
        app.kubernetes.io/version: 0.15.0
      annotations:
        cluster-autoscaler.kubernetes.io/safe-to-evict: "true"
        components.gke.io/component-name: managed_prometheus
    spec:
      priorityClassName: gmp-critical
      automountServiceAccountToken: false
      initContainers:
      - name: config-init
        image: gke.gcr.io/gke-distroless/bash:gke_distroless_20240907.00_p0
        command: ['/bin/bash', '-c', 'touch /alertmanager/config_out/config.yaml && echo -e "receivers:\n  - name: noop\nroute:\n  receiver: noop" > alertmanager/config_out/config.yaml']
        volumeMounts:
        - name: alertmanager-config
          mountPath: /alertmanager/config_out
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      containers:
      - name: alertmanager
        image: gke.gcr.io/prometheus-engine/alertmanager:v0.27.0-gmp.1-gke.1
        args:
        - --config.file=/alertmanager/config_out/config.yaml
        - --storage.path=/alertmanager-data
        - --cluster.listen-address=[$(POD_IP)]:9094
        - --web.listen-address=:9093
        - --log.format=json
        ports:
        - name: alertmanager
          containerPort: 9093
        env:
        - name: POD_IP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.podIP
        resources:
          limits:
            memory: 128M
          requests:
            cpu: 1m
            memory: 16M
        volumeMounts:
        - name: alertmanager-config
          readOnly: true
          mountPath: /alertmanager/config_out
        - name: alertmanager-data
          mountPath: /alertmanager-data
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      - name: config-reloader
        image: gke.gcr.io/prometheus-engine/config-reloader:v0.15.0-gke.12
        args:
        - --config-file=/alertmanager/config.yaml
        - --config-file-output=/alertmanager/config_out/config.yaml
        - --reload-url=http://127.0.0.1:9093/-/reload
        - --ready-url=http://127.0.0.1:9093/-/ready
        - --listen-address=:19091
        ports:
        - name: cfg-rel-metrics
          containerPort: 19091
        env:
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: spec.nodeName
        resources:
          limits:
            memory: 32M
          requests:
            cpu: 1m
            memory: 4M
        volumeMounts:
        - name: config
          readOnly: true
          mountPath: /alertmanager
        - name: alertmanager-config
          mountPath: /alertmanager/config_out
        securityContext:
          allowPrivilegeEscalation: false
          capabilities:
            drop:
            - all
          privileged: false
          readOnlyRootFilesystem: true
      volumes:
      - name: config
        secret:
          secretName: alertmanager
      - name: alertmanager-data
        emptyDir: {}
      - name: alertmanager-config
        emptyDir: {}
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/arch
                operator: In
                values:
                - arm64
                - amd64
              - key: kubernetes.io/os
                operator: In
                values:
                - linux
      tolerations:
      - key: "components.gke.io/gke-managed-components"
        operator: "Exists"
      - value: "amd64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      - value: "arm64"
        effect: "NoSchedule"
        key: "kubernetes.io/arch"
        operator: "Equal"
      securityContext:
        runAsGroup: 1000
        runAsNonRoot: true
        runAsUser: 1000
        seccompProfile:
          type: RuntimeDefault
  serviceName: alertmanager
---
# Source: operator/templates/mutatingwebhookconfiguration.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
  name: gmp-operator.gmp-system.monitoring.googleapis.com
webhooks:
- name: default.operatorconfigs.gmp-operator.gmp-system.monitoring.googleapis.com
  admissionReviewVersions:
  - v1
  clientConfig:
    # caBundle populated by operator.
    service:
      name: gmp-operator
      namespace: gmp-system
      port: 443
      path: /default/monitoring.googleapis.com/v1/operatorconfigs
  # Since this is re-applied at runtime by the operator's controllers
  # we can safely ignore any transient issues with the webhook server.
  failurePolicy: Ignore
  rules:
  - resources:
    - operatorconfigs
    apiGroups:
    - monitoring.googleapis.com
    apiVersions:
    - v1
    operations:
    - UPDATE
  sideEffects: None
---
# Source: operator/templates/operatorconfig.yaml
apiVersion: monitoring.googleapis.com/v1
kind: OperatorConfig
metadata:
  name: config
  namespace: gmp-public
---
# Source: operator/templates/validating-admission-policy.yaml
# Copyright 2025 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.

apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicy
metadata:
  name: "operatorconfigs.monitoring.googleapis.com"
spec:
  failurePolicy: Fail
  matchConstraints:
    resourceRules:
    - apiGroups:   ["monitoring.googleapis.com"]
      apiVersions: ["*"]
      operations:  ["CREATE", "UPDATE"]
      resources:   ["operatorconfigs"]
  validations:
    - expression: "object.metadata.name == 'config'"
    - expression: "object.metadata.namespace == 'gmp-public'"
---
# Source: operator/templates/validating-admission-policy.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicy
metadata:
  name: "protected-labels.monitoring.googleapis.com"
spec:
  failurePolicy: Fail
  matchConstraints:
    resourceRules:
    - apiGroups:   ["monitoring.googleapis.com"]
      apiVersions: ["*"]
      operations:  ["CREATE", "UPDATE"]
      resources:   ["clusternodemonitorings", "clusterpodmonitorings", "podmonitorings"]
  validations:
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'project_id'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"project_id\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'location'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"location\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'cluster'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"cluster\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'namespace'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"namespace\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'instance'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"instance\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'top_level_controller'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"top_level_controller\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || 'top_level_controller_type'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"top_level_controller_type\""
    - expression: "object.spec.endpoints.all(e, !has(e.metricRelabeling) || e.metricRelabeling.all(m, !has(m.regex) || '__address__'.matches(m.regex) == false))"
      message: "Relabeling rule regex would match protected label: \"__address__\""
---
# Source: operator/templates/validating-admission-policy.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicy
metadata:
  name: "unique-ports.monitoring.googleapis.com"
spec:
  failurePolicy: Fail
  matchConstraints:
    resourceRules:
    - apiGroups:   ["monitoring.googleapis.com"]
      apiVersions: ["*"]
      operations:  ["CREATE", "UPDATE"]
      resources:   ["clusterpodmonitorings", "podmonitorings"]
  variables:
    - name: "ports"
      expression: "object.spec.endpoints.map(e, e.port)"
  validations:
    - expression: "variables.ports.all(p, variables.ports.exists_one(ep, ep == p))"
      message: "Ports must be unique across all endpoints"
---
# Source: operator/templates/validating-admission-policy.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicyBinding
metadata:
  name: "operatorconfigs.monitoring.googleapis.com"
spec:
  policyName: "operatorconfigs.monitoring.googleapis.com"
  validationActions: [Deny]
---
# Source: operator/templates/validating-admission-policy.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicyBinding
metadata:
  name: "protected-labels.monitoring.googleapis.com"
spec:
  policyName: "protected-labels.monitoring.googleapis.com"
  validationActions: [Deny]
---
# Source: operator/templates/validating-admission-policy.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingAdmissionPolicyBinding
metadata:
  name: "unique-ports.monitoring.googleapis.com"
spec:
  policyName: "unique-ports.monitoring.googleapis.com"
  validationActions: [Deny]
---
# Source: operator/templates/validatingwebhookconfiguration.yaml
apiVersion: admissionregistration.k8s.io/v1
kind: ValidatingWebhookConfiguration
metadata:
  name: gmp-operator.gmp-system.monitoring.googleapis.com
webhooks:
- name: validate.rules.gmp-operator.gmp-system.monitoring.googleapis.com
  admissionReviewVersions:
  - v1
  clientConfig:
    # caBundle populated by operator.
    service:
      name: gmp-operator
      namespace: gmp-system
      port: 443
      path: /validate/monitoring.googleapis.com/v1/rules
  failurePolicy: Fail
  rules:
  - resources:
    - rules
    apiGroups:
    - monitoring.googleapis.com
    apiVersions:
    - v1
    operations:
    - CREATE
    - UPDATE
  sideEffects: None
- name: validate.clusterrules.gmp-operator.gmp-system.monitoring.googleapis.com
  admissionReviewVersions:
  - v1
  clientConfig:
    # caBundle populated by operator.
    service:
      name: gmp-operator
      namespace: gmp-system
      port: 443
      path: /validate/monitoring.googleapis.com/v1/clusterrules
  failurePolicy: Fail
  rules:
  - resources:
    - clusterrules
    apiGroups:
    - monitoring.googleapis.com
    apiVersions:
    - v1
    operations:
    - CREATE
    - UPDATE
  sideEffects: None
- name: validate.globalrules.gmp-operator.gmp-system.monitoring.googleapis.com
  admissionReviewVersions:
  - v1
  clientConfig:
    # caBundle populated by operator.
    service:
      name: gmp-operator
      namespace: gmp-system
      port: 443
      path: /validate/monitoring.googleapis.com/v1/globalrules
  failurePolicy: Fail
  rules:
  - resources:
    - globalrules
    apiGroups:
    - monitoring.googleapis.com
    apiVersions:
    - v1
    operations:
    - CREATE
    - UPDATE
  sideEffects: None
- name: validate.operatorconfigs.gmp-operator.gmp-system.monitoring.googleapis.com
  admissionReviewVersions:
  - v1
  clientConfig:
    # caBundle populated by operator.
    service:
      name: gmp-operator
      namespace: gmp-system
      port: 443
      path: /validate/monitoring.googleapis.com/v1/operatorconfigs
  failurePolicy: Fail
  rules:
  - resources:
    - operatorconfigs
    apiGroups:
    - monitoring.googleapis.com
    apiVersions:
    - v1
    operations:
    - CREATE
    - UPDATE
  sideEffects: None