template.go

package install

// Template provides the base template for the `linkerd install` command.
const Template = `### Namespace ###
kind: Namespace
apiVersion: v1
metadata:
  name: {{.Namespace}}

### Service Account Controller ###
---
kind: ServiceAccount
apiVersion: v1
metadata:
  name: linkerd-controller
  namespace: {{.Namespace}}

### Controller RBAC ###
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-controller
rules:
- apiGroups: ["extensions", "apps"]
  resources: ["deployments", "replicasets"]
  verbs: ["list", "get", "watch"]
- apiGroups: [""]
  resources: ["pods", "endpoints", "services", "namespaces", "replicationcontrollers"]
  verbs: ["list", "get", "watch"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-controller
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: linkerd-{{.Namespace}}-controller
subjects:
- kind: ServiceAccount
  name: linkerd-controller
  namespace: {{.Namespace}}

### Service Account Prometheus ###
---
kind: ServiceAccount
apiVersion: v1
metadata:
  name: linkerd-prometheus
  namespace: {{.Namespace}}

### Prometheus RBAC ###
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-prometheus
rules:
- apiGroups: [""]
  resources: ["pods"]
  verbs: ["get", "list", "watch"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-prometheus
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: linkerd-{{.Namespace}}-prometheus
subjects:
- kind: ServiceAccount
  name: linkerd-prometheus
  namespace: {{.Namespace}}

### Controller ###
---
kind: Service
apiVersion: v1
metadata:
  name: api
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: controller
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  type: ClusterIP
  selector:
    {{.ControllerComponentLabel}}: controller
  ports:
  - name: http
    port: 8085
    targetPort: 8085

---
kind: Service
apiVersion: v1
metadata:
  name: proxy-api
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: controller
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  type: ClusterIP
  selector:
    {{.ControllerComponentLabel}}: controller
  ports:
  - name: grpc
    port: {{.ProxyAPIPort}}
    targetPort: {{.ProxyAPIPort}}

---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: controller
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: controller
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  replicas: {{.ControllerReplicas}}
  template:
    metadata:
      labels:
        {{.ControllerComponentLabel}}: controller
      annotations:
        {{.CreatedByAnnotation}}: {{.CliVersion}}
    spec:
      serviceAccount: linkerd-controller
      containers:
      - name: public-api
        ports:
        - name: http
          containerPort: 8085
        - name: admin-http
          containerPort: 9995
        image: {{.ControllerImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "public-api"
        - "-prometheus-url=http://prometheus.{{.Namespace}}.svc.cluster.local:9090"
        - "-controller-namespace={{.Namespace}}"
        - "-log-level={{.ControllerLogLevel}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9995
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9995
          failureThreshold: 7
      - name: destination
        ports:
        - name: grpc
          containerPort: 8089
        - name: admin-http
          containerPort: 9999
        image: {{.ControllerImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "destination"
        - "-enable-tls={{.EnableTLS}}"
        - "-log-level={{.ControllerLogLevel}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9999
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9999
          failureThreshold: 7
      - name: proxy-api
        ports:
        - name: grpc
          containerPort: {{.ProxyAPIPort}}
        - name: admin-http
          containerPort: 9996
        image: {{.ControllerImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "proxy-api"
        - "-addr=:{{.ProxyAPIPort}}"
        - "-log-level={{.ControllerLogLevel}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9996
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9996
          failureThreshold: 7
      - name: tap
        ports:
        - name: grpc
          containerPort: 8088
        - name: admin-http
          containerPort: 9998
        image: {{.ControllerImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "tap"
        - "-log-level={{.ControllerLogLevel}}"
        - "-controller-namespace={{.Namespace}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9998
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9998
          failureThreshold: 7

### Web ###
---
kind: Service
apiVersion: v1
metadata:
  name: web
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: web
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  type: ClusterIP
  selector:
    {{.ControllerComponentLabel}}: web
  ports:
  - name: http
    port: 8084
    targetPort: 8084
  - name: admin-http
    port: 9994
    targetPort: 9994

---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: web
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: web
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  replicas: {{.WebReplicas}}
  template:
    metadata:
      labels:
        {{.ControllerComponentLabel}}: web
      annotations:
        {{.CreatedByAnnotation}}: {{.CliVersion}}
    spec:
      containers:
      - name: web
        ports:
        - name: http
          containerPort: 8084
        - name: admin-http
          containerPort: 9994
        image: {{.WebImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "-api-addr=api.{{.Namespace}}.svc.cluster.local:8085"
        - "-static-dir=/dist"
        - "-template-dir=/templates"
        - "-uuid={{.UUID}}"
        - "-controller-namespace={{.Namespace}}"
        - "-log-level={{.ControllerLogLevel}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9994
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9994
          failureThreshold: 7

### Prometheus ###
---
kind: Service
apiVersion: v1
metadata:
  name: prometheus
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: prometheus
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  type: ClusterIP
  selector:
    {{.ControllerComponentLabel}}: prometheus
  ports:
  - name: admin-http
    port: 9090
    targetPort: 9090

---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: prometheus
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: prometheus
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  replicas: {{.PrometheusReplicas}}
  template:
    metadata:
      labels:
        {{.ControllerComponentLabel}}: prometheus
      annotations:
        {{.CreatedByAnnotation}}: {{.CliVersion}}
    spec:
      serviceAccount: linkerd-prometheus
      volumes:
      - name: prometheus-config
        configMap:
          name: prometheus-config
      containers:
      - name: prometheus
        ports:
        - name: admin-http
          containerPort: 9090
        volumeMounts:
        - name: prometheus-config
          mountPath: /etc/prometheus
          readOnly: true
        image: {{.PrometheusImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "--storage.tsdb.retention=6h"
        - "--config.file=/etc/prometheus/prometheus.yml"
        readinessProbe:
          httpGet:
            path: /-/ready
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30
        livenessProbe:
          httpGet:
            path: /-/healthy
            port: 9090
          initialDelaySeconds: 30
          timeoutSeconds: 30

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: prometheus-config
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: prometheus
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
data:
  prometheus.yml: |-
    global:
      scrape_interval: 10s
      scrape_timeout: 10s
      evaluation_interval: 10s

    scrape_configs:
    - job_name: 'prometheus'
      static_configs:
      - targets: ['localhost:9090']

    - job_name: 'grafana'
      kubernetes_sd_configs:
      - role: pod
        namespaces:
          names: ['{{.Namespace}}']
      relabel_configs:
      - source_labels:
        - __meta_kubernetes_pod_container_name
        action: keep
        regex: ^grafana$

    - job_name: 'linkerd-controller'
      kubernetes_sd_configs:
      - role: pod
        namespaces:
          names: ['{{.Namespace}}']
      relabel_configs:
      - source_labels:
        - __meta_kubernetes_pod_label_linkerd_io_control_plane_component
        - __meta_kubernetes_pod_container_port_name
        action: keep
        regex: (.*);admin-http$
      - source_labels: [__meta_kubernetes_pod_container_name]
        action: replace
        target_label: component

    - job_name: 'linkerd-proxy'
      kubernetes_sd_configs:
      - role: pod
      relabel_configs:
      - source_labels:
        - __meta_kubernetes_pod_container_name
        - __meta_kubernetes_pod_container_port_name
        - __meta_kubernetes_pod_label_linkerd_io_control_plane_ns
        action: keep
        regex: ^{{.ProxyContainerName}};linkerd-metrics;{{.Namespace}}$
      - source_labels: [__meta_kubernetes_namespace]
        action: replace
        target_label: namespace
      - source_labels: [__meta_kubernetes_pod_name]
        action: replace
        target_label: pod
      # special case k8s' "job" label, to not interfere with prometheus' "job"
      # label
      # __meta_kubernetes_pod_label_linkerd_io_proxy_job=foo =>
      # k8s_job=foo
      - source_labels: [__meta_kubernetes_pod_label_linkerd_io_proxy_job]
        action: replace
        target_label: k8s_job
      # __meta_kubernetes_pod_label_linkerd_io_proxy_deployment=foo =>
      # deployment=foo
      - action: labelmap
        regex: __meta_kubernetes_pod_label_linkerd_io_proxy_(.+)
      # drop all labels that we just made copies of in the previous labelmap
      - action: labeldrop
        regex: __meta_kubernetes_pod_label_linkerd_io_proxy_(.+)
      # __meta_kubernetes_pod_label_linkerd_io_foo=bar =>
      # foo=bar
      - action: labelmap
        regex: __meta_kubernetes_pod_label_linkerd_io_(.+)

### Grafana ###
---
kind: Service
apiVersion: v1
metadata:
  name: grafana
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: grafana
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  type: ClusterIP
  selector:
    {{.ControllerComponentLabel}}: grafana
  ports:
  - name: http
    port: 3000
    targetPort: 3000

---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: grafana
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: grafana
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  replicas: 1
  template:
    metadata:
      labels:
        {{.ControllerComponentLabel}}: grafana
      annotations:
        {{.CreatedByAnnotation}}: {{.CliVersion}}
    spec:
      volumes:
      - name: grafana-config
        configMap:
          name: grafana-config
          items:
          - key: grafana.ini
            path: grafana.ini
          - key: datasources.yaml
            path: provisioning/datasources/datasources.yaml
          - key: dashboards.yaml
            path: provisioning/dashboards/dashboards.yaml
      containers:
      - name: grafana
        ports:
        - name: http
          containerPort: 3000
        volumeMounts:
        - name: grafana-config
          mountPath: /etc/grafana
          readOnly: true
        image: {{.GrafanaImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        livenessProbe:
          httpGet:
            path: /api/health
            port: 3000
        readinessProbe:
          httpGet:
            path: /api/health
            port: 3000
          initialDelaySeconds: 30
          timeoutSeconds: 30
          failureThreshold: 10
          periodSeconds: 10

---
kind: ConfigMap
apiVersion: v1
metadata:
  name: grafana-config
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: grafana
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
data:
  grafana.ini: |-
    instance_name = linkerd-grafana

    [server]
    root_url = %(protocol)s://%(domain)s:/api/v1/namespaces/{{.Namespace}}/services/grafana:http/proxy/

    [auth]
    disable_login_form = true

    [auth.anonymous]
    enabled = true
    org_role = Editor

    [auth.basic]
    enabled = false

    [analytics]
    check_for_updates = false

  datasources.yaml: |-
    apiVersion: 1
    datasources:
    - name: prometheus
      type: prometheus
      access: proxy
      orgId: 1
      url: http://prometheus.{{.Namespace}}.svc.cluster.local:9090
      isDefault: true
      jsonData:
        timeInterval: "5s"
      version: 1
      editable: true

  dashboards.yaml: |-
    apiVersion: 1
    providers:
    - name: 'default'
      orgId: 1
      folder: ''
      type: file
      disableDeletion: true
      editable: true
      options:
        path: /var/lib/grafana/dashboards
        homeDashboardId: linkerd-top-line
`

const TlsTemplate = `
### Service Account CA ###
---
kind: ServiceAccount
apiVersion: v1
metadata:
  name: linkerd-ca
  namespace: {{.Namespace}}

### CA RBAC ###
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-ca
rules:
- apiGroups: [""]
  resources: ["configmaps"]
  verbs: ["create"]
- apiGroups: [""]
  resources: ["configmaps"]
  resourceNames: [{{.TLSTrustAnchorConfigMapName}}]
  verbs: ["update"]
- apiGroups: [""]
  resources: ["pods"]
  verbs: ["list", "get", "watch"]
- apiGroups: ["extensions", "apps"]
  resources: ["replicasets"]
  verbs: ["list", "get", "watch"]
- apiGroups: [""]
  resources: ["secrets"]
  verbs: ["create", "update"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: linkerd-{{.Namespace}}-ca
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: linkerd-{{.Namespace}}-ca
subjects:
- kind: ServiceAccount
  name: linkerd-ca
  namespace: {{.Namespace}}

### CA ###
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: ca
  namespace: {{.Namespace}}
  labels:
    {{.ControllerComponentLabel}}: ca
  annotations:
    {{.CreatedByAnnotation}}: {{.CliVersion}}
spec:
  replicas: {{.ControllerReplicas}}
  template:
    metadata:
      labels:
        {{.ControllerComponentLabel}}: ca
      annotations:
        {{.CreatedByAnnotation}}: {{.CliVersion}}
    spec:
      serviceAccount: linkerd-ca
      containers:
      - name: ca
        ports:
        - name: admin-http
          containerPort: 9997
        image: {{.ControllerImage}}
        imagePullPolicy: {{.ImagePullPolicy}}
        args:
        - "ca"
        - "-controller-namespace={{.Namespace}}"
        - "-log-level={{.ControllerLogLevel}}"
        livenessProbe:
          httpGet:
            path: /ping
            port: 9997
          initialDelaySeconds: 10
        readinessProbe:
          httpGet:
            path: /ready
            port: 9997
          failureThreshold: 7
`