{
  "kind": "Template",
  "apiVersion": "v1",
  "metadata": {
    "name": "mongodb-replica-example",
    "annotations": {
      "description": "MongoDB Replication Example",
      "icon": "icon-database",
      "tags": "database,mongodb,replication"
    }
  },
  "labels": {
    "template": "mongodb-replica-example"
  },
  "parameters": [
    {
      "name": "MONGODB_USER",
      "description": "The username for MongoDB account to be created",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{3}"
    },
    {
      "name": "MONGODB_PASSWORD",
      "description": "Password for the MongoDB user account",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{12}"
    },
    {
      "name": "MONGODB_DATABASE",
      "description": "Name for the MongoDB database",
      "value": "userdb"
    },
    {
      "name": "MONGODB_ADMIN_PASSWORD",
      "description": "Password for the MongoDB admin user",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{12}"
    },
    {
      "name": "MONGODB_REPLICA_NAME",
      "description": "The name of the replica set",
      "value": "rs0"
    },
    {
      "name": "MONGODB_SERVICE_NAME",
      "description": "The name of the MongoDB Service (used to DNS lookup, default: 'mongodb')",
      "value": "mongodb"
    },
    {
      "name": "MONGODB_KEYFILE_VALUE",
      "description": "The value of the MongoDB Key",
      "generate": "expression",
      "from": "[a-zA-Z0-9]{255}"
    }
  ],
  "objects":[
    {
      "kind": "Service",
      "apiVersion": "v1",
      "metadata": {
        "name": "${MONGODB_SERVICE_NAME}",
        "labels": {
          "name": "${MONGODB_SERVICE_NAME}"
        }
      },
      "spec": {
        "ports": [
          {
            "name": "mongodb",
            "port": 27017,
            "targetPort": 27017
          }
        ],
        "selector": {
          "name": "mongodb-replica"
        },
        "clusterIP": "None"
      }
    },
    {
      "kind": "DeploymentConfig",
      "apiVersion": "v1",
      "metadata": {
        "name": "${MONGODB_SERVICE_NAME}",
        "creationTimestamp": null
      },
      "spec": {
        "strategy": {
          "type": "Recreate",
          "recreateParams": {
            "post": {
              "failurePolicy": "Retry",
              "execNewPod": {
                "command": [
                  "run-mongod", "initiate"
                ],
                "containerName": "mongodb"
              }
            }
          }
        },
        "triggers": [
          {
            "type":"ConfigChange"
          }
        ],
        "replicas": 3,
        "selector": {
          "name": "mongodb-replica"
        },
        "template": {
          "metadata": {
            "labels": {
              "name": "mongodb-replica"
            }
          },
          "spec": {
            "containers": [
              {
                "name":  "mongodb",
                "image": "registry.access.redhat.com/rhscl/mongodb-26-rhel7",
                "env": [
                  {
                    "name": "MONGODB_USER",
                    "value": "${MONGODB_USER}"
                  },
                  {
                    "name": "MONGODB_PASSWORD",
                    "value": "${MONGODB_PASSWORD}"
                  },
                  {
                    "name": "MONGODB_DATABASE",
                    "value": "${MONGODB_DATABASE}"
                  },
                  {
                    "name": "MONGODB_ADMIN_PASSWORD",
                    "value": "${MONGODB_ADMIN_PASSWORD}"
                  },
                  {
                    "name": "MONGODB_REPLICA_NAME",
                    "value": "${MONGODB_REPLICA_NAME}"
                  },
                  {
                    "name": "MONGODB_SERVICE_NAME",
                    "value": "${MONGODB_SERVICE_NAME}"
                  },
                  {
                    "name": "MONGODB_KEYFILE_VALUE",
                    "value": "${MONGODB_KEYFILE_VALUE}"
                  }
                ],
                "ports":[
                  {
                    "containerPort": 27017
                  }
                ]
              }
            ]
          }
        },
        "restartPolicy": "Never",
        "dnsPolicy": "ClusterFirst"
      }
    }
  ]
}