google/resource-snippets/compute-v1/instance_group_manager_with_auto_healing.jinja

# Copyright 2018 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.

#% description: Creates an Instance Group Manager and an Instance Template
#% parameters:
#% - name: zone
#%   type: string
#%   description: Zone in which this IGM will run
#%   required: false
#% - name: region
#%   type: string
#%   description: Region in which this IGM will run
#%   required: false
#% - name: healthzServerFile
#%   type: string
#%   description: Path to the Python HTTP server that serves /healthz
#%   required: true
#% - name: targetSize
#%   type: int
#%   description: Size of this IGM
#%   required: true
#% - name: apiVersion
#%   type: string
#%   description: API version for all resources except IGM
#%   required: true
#% - name: apiVersionForIgm
#%   type: string
#%   description: API version for IGM
#%   required: true

resources:

- name: {{ env["deployment"] }}-fw
  type: gcp-types/compute-{{ properties["apiVersion"] }}:firewalls
  properties:
    sourceRanges: [0.0.0.0/0]
    allowed:
    - IPProtocol: tcp
      ports: [12345]

- name: {{ env["deployment"] }}-hc
  type: gcp-types/compute-{{ properties["apiVersion"] }}:httpHealthChecks
  properties:
    port: 12345
    requestPath: /healthz

- name: {{ env["deployment"] }}-it
  type: gcp-types/compute-{{ properties["apiVersion"] }}:instanceTemplates
  properties:
    properties:
      machineType: f1-micro
      disks:
      - deviceName: boot
        boot: true
        type: PERSISTENT
        autoDelete: true
        mode: READ_WRITE
        initializeParams:
          diskName: {{ env["deployment"] }}-disk
          sourceImage: https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-7-wheezy-v20140619
      metadata:
        items:
        - key: startup-script
          value: |
            #!/bin/bash
            cat <<EOF >/tmp/healthz_server.py
            {{ imports[properties["healthzServerFile"]].replace('\n', '\n            ') }}
            EOF
            python /tmp/healthz_server.py &
      networkInterfaces:
        - network: https://www.googleapis.com/compute/v1/projects/{{ env["project"] }}/global/networks/default
          accessConfigs:
          - name: External NAT
            type: ONE_TO_ONE_NAT

- name: {{ env["deployment"] }}-igm
{% if "region" in properties %}
  type: gcp-types/compute-{{ properties["apiVersionForIgm"] }}:regionInstanceGroupManagers
{% else %}
  type: gcp-types/compute-{{ properties["apiVersionForIgm"] }}:instanceGroupManagers
{% endif %}
  properties:
{% if "region" in properties %}
    region: {{ properties["region"] }}
{% else %}
    zone: {{ properties["zone"] }}
{% endif %}
    targetSize: {{ properties["targetSize"] }}
    baseInstanceName: {{ env["deployment"] }}-instance
    instanceTemplate: $(ref.{{ env["deployment"] }}-it.selfLink)
    autoHealingPolicies:
    - healthCheck: $(ref.{{ env["deployment"] }}-hc.selfLink)
      actionType: RECREATE