/*
 Copyright 2021 The KubeSphere Authors.

 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.
*/

package templates

import (
	"text/template"

	"github.com/lithammer/dedent"
)

// OpenEBS defines the template of openebs' manifests.
var OpenEBS = template.Must(template.New("local-volume.yaml").Parse(
	dedent.Dedent(`---
#Sample storage classes for OpenEBS Local PV
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: local
  annotations:
    storageclass.kubesphere.io/supported-access-modes: '["ReadWriteOnce"]'
    storageclass.beta.kubernetes.io/is-default-class: "true"
    openebs.io/cas-type: local
    cas.openebs.io/config: |
      - name: StorageType
        value: "hostpath"
      - name: BasePath
        value: "/var/openebs/local/"
provisioner: openebs.io/local
volumeBindingMode: WaitForFirstConsumer
reclaimPolicy: Delete
---
# Create Maya Service Account
apiVersion: v1
kind: ServiceAccount
metadata:
  name: openebs-maya-operator
  namespace: kube-system
---
# Define Role that allows operations on K8s pods/deployments
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: openebs-maya-operator
rules:
- apiGroups: ["*"]
  resources: ["nodes", "nodes/proxy"]
  verbs: ["*"]
- apiGroups: ["*"]
  resources: ["namespaces", "services", "pods", "pods/exec", "deployments", "deployments/finalizers", "replicationcontrollers", "replicasets", "events", "endpoints", "configmaps", "secrets", "jobs", "cronjobs"]
  verbs: ["*"]
- apiGroups: ["*"]
  resources: ["statefulsets", "daemonsets"]
  verbs: ["*"]
- apiGroups: ["*"]
  resources: ["resourcequotas", "limitranges"]
  verbs: ["list", "watch"]
- apiGroups: ["*"]
  resources: ["ingresses", "horizontalpodautoscalers", "verticalpodautoscalers", "poddisruptionbudgets", "certificatesigningrequests"]
  verbs: ["list", "watch"]
- apiGroups: ["*"]
  resources: ["storageclasses", "persistentvolumeclaims", "persistentvolumes"]
  verbs: ["*"]
- apiGroups: ["apiextensions.k8s.io"]
  resources: ["customresourcedefinitions"]
  verbs: [ "get", "list", "create", "update", "delete", "patch"]
- apiGroups: ["openebs.io"]
  resources: [ "*"]
  verbs: ["*"]
- nonResourceURLs: ["/metrics"]
  verbs: ["get"]
---
# Bind the Service Account with the Role Privileges.
# TODO: Check if default account also needs to be there
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: openebs-maya-operator
subjects:
- kind: ServiceAccount
  name: openebs-maya-operator
  namespace: kube-system
roleRef:
  kind: ClusterRole
  name: openebs-maya-operator
  apiGroup: rbac.authorization.k8s.io
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: openebs-localpv-provisioner
  namespace: kube-system
  labels:
    name: openebs-localpv-provisioner
    openebs.io/component-name: openebs-localpv-provisioner
    openebs.io/version: 3.3.0
spec:
  selector:
    matchLabels:
      name: openebs-localpv-provisioner
      openebs.io/component-name: openebs-localpv-provisioner
  replicas: 1
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        name: openebs-localpv-provisioner
        openebs.io/component-name: openebs-localpv-provisioner
        openebs.io/version: 3.3.0
    spec:
      serviceAccountName: openebs-maya-operator
      containers:
      - name: openebs-provisioner-hostpath
        imagePullPolicy: IfNotPresent
        image: {{ .ProvisionerLocalPVImage }}
        env:
        # OPENEBS_IO_K8S_MASTER enables openebs provisioner to connect to K8s
        # based on this address. This is ignored if empty.
        # This is supported for openebs provisioner version 0.5.2 onwards
        #- name: OPENEBS_IO_K8S_MASTER
        #  value: "http://10.128.0.12:8080"
        # OPENEBS_IO_KUBE_CONFIG enables openebs provisioner to connect to K8s
        # based on this config. This is ignored if empty.
        # This is supported for openebs provisioner version 0.5.2 onwards
        #- name: OPENEBS_IO_KUBE_CONFIG
        #  value: "/home/ubuntu/.kube/config"
        - name: NODE_NAME
          valueFrom:
            fieldRef:
              fieldPath: spec.nodeName
        - name: OPENEBS_NAMESPACE
          valueFrom:
            fieldRef:
              fieldPath: metadata.namespace
        # OPENEBS_SERVICE_ACCOUNT provides the service account of this pod as
        # environment variable
        - name: OPENEBS_SERVICE_ACCOUNT
          valueFrom:
            fieldRef:
              fieldPath: spec.serviceAccountName
        - name: OPENEBS_IO_ENABLE_ANALYTICS
          value: "true"
        - name: OPENEBS_IO_INSTALLER_TYPE
          value: "openebs-operator-lite"
        - name: OPENEBS_IO_HELPER_IMAGE
          value: "{{ .LinuxUtilsImage }}"
        # LEADER_ELECTION_ENABLED is used to enable/disable leader election. By default
        # leader election is enabled.
        #- name: LEADER_ELECTION_ENABLED
        #  value: "true"
        # OPENEBS_IO_IMAGE_PULL_SECRETS environment variable is used to pass the image pull secrets
        # to the helper pod launched by local-pv hostpath provisioner
        #- name: OPENEBS_IO_IMAGE_PULL_SECRETS
        #  value: ""
        livenessProbe:
          exec:
            command:
            - sh
            - -c
            - test $(pgrep -c "^provisioner-loc.*") = 1
          initialDelaySeconds: 30
          periodSeconds: 60
    `)))
