mongodb-instance-template.jinja

# Copyright 2016 Google Inc. All Rights Reserved.

# 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.

resources:
- type: compute.v1.disk
  name: {{ env["name"] }}-data
  properties:
    zone: {{ properties["zone"] }}
    sizeGb: 500
    type: projects/{{ env["project"] }}/zones/{{ properties["zone"] }}/diskTypes/pd-ssd 

- type: compute.v1.instance
  name: {{ env["name"] }}
  properties:
    zone: {{ properties["zone"] }}
    machineType: zones/{{ properties["zone"] }}/machineTypes/{{ properties["machineType"] }}
    disks:
    - deviceName: boot
      type: PERSISTENT
      boot: true
      autoDelete: true
      initializeParams: 
        sourceImage: https://www.googleapis.com/compute/v1/projects/click-to-deploy-images/global/images/family/mongodb-cloud-manager-bootstrap
    - deviceName: {{ env["name"] }}-data
      type: PERSISTENT
      autoDelete: false
      source: $(ref.{{ env["name"] }}-data.selfLink)
    networkInterfaces:
    - network: global/networks/default
      accessConfigs:
      - name: External NAT
        type: ONE_TO_ONE_NAT
    metadata:
      items:
      - key: startup-script
        value: |
          #!/bin/bash

          # change to /root
          cd /root

          # set transparent_hugepage/enabled and transparent_hugepage/defrag to never
          echo never > /sys/kernel/mm/transparent_hugepage/enabled
          echo never > /sys/kernel/mm/transparent_hugepage/defrag

          # download the latest mongodb cloud manager agent
          curl -OL https://cloud.mongodb.com/download/agent/automation/mongodb-mms-automation-agent-manager_latest_amd64.ubuntu1604.deb
          
          # install the mongodb cloud manager agent
          dpkg -i mongodb-mms-automation-agent-manager_latest_amd64.ubuntu1604.deb

          # configure the agent with cloud manager mmsGroupId and mmsApiKey
          sed -i '/mmsGroupId/c\mmsGroupId={{ properties["mmsGroupId"] }}' /etc/mongodb-mms/automation-agent.config
          sed -i '/mmsApiKey/c\mmsApiKey={{ properties["mmsApiKey"] }}' /etc/mongodb-mms/automation-agent.config

          # create filesystem on persistent storage
          mkfs.xfs -f /dev/disk/by-id/google-{{ env["name"] }}-data

          # create mongodb data directory
          mkdir /data

          # mount persistent disk
          mount -o discard,defaults /dev/disk/by-id/google-{{ env["name"] }}-data /data

          # set data directory ownership
          chown mongodb:mongodb /data

          # add an entry to /etc/fstab for persistent disk
          echo '/dev/disk/by-id/google-{{ env["name"] }}-data /data xfs discard,defaults 1 1' | tee -a /etc/fstab

          # start the mongodb cloud manager agent
          systemctl start mongodb-mms-automation-agent.service
    tags:
      items:
      - mongodb-cloud-manager-bootstrap