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4.16. Appendix: Configuration files for Red Hat Gluster Storage Deployment

Filename: glusterfs-config.yaml

# Copyright 2015 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.

#
# glusterfs-config.yaml
#
# The Gluster FS deployment consists of a primary pool and a secondary pool
#   of resources, each on a separate zone.
#

imports:
  - path: gluster_instance.jinja
  - path: path_utils.jinja
resources:
- name: gluster_instance
  type: gluster_instance.jinja
  properties:
    namePrefix: rhgs
    numPrimaryReplicas: 10
    primaryZone: us-central1-a
    secondaryZone: us-central1-b
    numSecondaryReplicas: 10
    backupZone: europe-west1-b
    sourceImage: global/images/rhgs-image01
    dataSourceImage: global/images/rhgs-data-image01
    machineType: n1-highmem-4
    network: default
    bootDiskType: pd-standard
    dataDiskType: pd-standard
    dataDiskSizeGb: 10230
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Filename: gluster_instance.jinja

# Copyright 2015 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.

# GlusterFs configuration variables
#
# Required Cloud resource input parameters:
#  * numPrimaryReplicas - number of instances to create in the primary zone
#  * numSecondaryReplicas - number of instances to create in the secondary zone
#  * namePrefix - hostname prefix
#    The instance number (0 based) will be appended ("-n<#><#>")
#  * primaryZone - Compute Engine zone for the instance (short name)
#  * secondaryZone - Compute Engine zone for the instance (short name)
#  * network - Compute Engine network for the instance (full URI)
#  * image - Compute Engine image for the instance (full URI)
#  * machineType - Compute Engine machine type for the instance (full URI)
#  * bootDiskType - Compute Engine boot disk type for the instance (full URI)
#  * dataDiskType: Compute Engine data disk type for the instance (full URI)
#  * dataDiskSizeGb: Data disk size in Gigabytes

{% import 'path_utils.jinja' as path_utils with context %}

# Grab the config properties
{% set numPrimaryReplicas = properties["numPrimaryReplicas"] + 1%}
{% set numSecondaryReplicas = properties["numSecondaryReplicas"] + 1 %}
{% set image = properties["image"] %}

# Macros and variables dealing with naming
{% set prefix = properties["namePrefix"] %}

{% macro hostname(prefix, id) -%}
{{ "%s-n%02d"|format(prefix, id) }}
{%- endmacro %}

{% macro diskname(prefix, id) -%}
{{ "%s-data-disk-n%02d"|format(prefix, id) }}
{%- endmacro %}

# Expand resource input parameters into full URLs
{% set network = path_utils.networkPath(properties["network"]) %}
{% set primaryZone = properties["primaryZone"] %}
{% set bootDiskType = path_utils.diskTypePath(
    primaryZone, properties["bootDiskType"]) %}
{% set dataDiskType = path_utils.diskTypePath(
    primaryZone, properties["dataDiskType"]) %}
{% set machineType = path_utils.machineTypePath(
    primaryZone, properties["machineType"]) %}

resources:
# Add clone instances in the local Zone
{% for n_suffix in range(1, numPrimaryReplicas) %}

  {% set namePrefix = prefix + '-primary' %}

- type: compute.v1.disk
  name: {{ diskname(namePrefix, n_suffix) }}
  properties:

    zone: {{ primaryZone }}
    type: {{ dataDiskType }}
    sizeGb: {{ properties["dataDiskSizeGb"] }}
    sourceImage: {{ properties["dataSourceImage"] }}

- type: compute.v1.instance
  name: {{ hostname(namePrefix, n_suffix) }}
  properties:
    zone: {{ primaryZone }}
    machineType: {{ machineType }}

    disks:
    # Request boot disk creation (mark for autodelete)
    - deviceName: boot
      type: PERSISTENT
      boot: true
      autoDelete: true
      initializeParams:
        sourceImage: {{ properties["sourceImage"] }}
        diskType: {{ bootDiskType }}
        diskSizeGb: 10

    # Attach the existing data disk (mark for autodelete)
    - deviceName: {{ diskname(namePrefix, n_suffix) }}
      source: $(ref.{{ diskname(namePrefix, n_suffix) }}.selfLink)
      autoDelete: true
      type: PERSISTENT

    networkInterfaces:
    - network: {{ network }}
      accessConfigs:
      - name: External NAT
        type: ONE_TO_ONE_NAT

    tags:
      items:
      - "glusterfs-deployed-from-google-developer-console"

{% endfor %}

# Setup in-region replicas
{% set network = path_utils.networkPath(properties["network"]) %}
{% set secondaryZone = properties["secondaryZone"] %}
{% set bootDiskType = path_utils.diskTypePath(
    secondaryZone, properties["bootDiskType"]) %}
{% set dataDiskType = path_utils.diskTypePath(
    secondaryZone, properties["dataDiskType"]) %}
{% set machineType = path_utils.machineTypePath(
    secondaryZone, properties["machineType"]) %}
{% for n_suffix in range(1, numPrimaryReplicas) %}

  {% set namePrefix = prefix + '-secondary' %}

- type: compute.v1.disk
  name: {{ diskname(namePrefix, n_suffix) }}
  properties:
    zone: {{ secondaryZone }}
    type: {{ dataDiskType }}
    sizeGb: {{ properties["dataDiskSizeGb"] }}
    sourceImage: {{ properties["dataSourceImage"] }}

- type: compute.v1.instance
  name: {{ hostname(namePrefix, n_suffix) }}
  properties:
    zone: {{ secondaryZone }}
    machineType: {{ machineType }}

    disks:
    # Request boot disk creation (mark for autodelete)
    - deviceName: boot
      type: PERSISTENT
      boot: true
      autoDelete: true
      initializeParams:
        sourceImage: {{ properties["sourceImage"] }}
        diskType: {{ bootDiskType }}
        diskSizeGb: 10

    # Attach the existing data disk (mark for autodelete)
    - deviceName: {{ diskname(namePrefix, n_suffix) }}
      source: $(ref.{{ diskname(namePrefix, n_suffix) }}.selfLink)
      autoDelete: true
      type: PERSISTENT

    networkInterfaces:
    - network: {{ network }}
      accessConfigs:
      - name: External NAT
        type: ONE_TO_ONE_NAT

    tags:
      items:
      - "glusterfs-deployed-from-google-developer-console"

{% endfor %}


# Add clone instances in the remote Zone
{% set backupZone = properties["backupZone"] %}
{% set bootDiskType = path_utils.diskTypePath(
    backupZone, properties["bootDiskType"]) %}
{% set dataDiskType = path_utils.diskTypePath(
    backupZone, properties["dataDiskType"]) %}
{% set machineType = path_utils.machineTypePath(
    backupZone, properties["machineType"]) %}
{% for n_suffix in range(1, numSecondaryReplicas) %}
  {% set namePrefix = prefix + '-backup' %}

- type: compute.v1.disk
  name: {{ diskname(namePrefix, n_suffix) }}
  properties:
    zone: {{ backupZone }}
    type: {{ dataDiskType }}
    sizeGb: {{ properties["dataDiskSizeGb"] }}
#    sourceImage: {{ properties["dataSourceImage"] }}

- type: compute.v1.instance
  name: {{ hostname(namePrefix, n_suffix) }}
  properties:
    zone: {{ backupZone }}
    machineType: {{ machineType }}

    disks:
    # Request boot disk creation (mark for autodelete)
    - deviceName: boot
      type: PERSISTENT
      boot: true
      autoDelete: true
      initializeParams:
        sourceImage: {{ properties["sourceImage"] }}
        diskType: {{ bootDiskType }}
        diskSizeGb: 10

    # Attach the existing data disk (mark for autodelete)
    - deviceName: {{ diskname(namePrefix, n_suffix) }}
      source: $(ref.{{ diskname(namePrefix, n_suffix) }}.selfLink)
      autoDelete: true
      type: PERSISTENT

    networkInterfaces:
    - network: {{ network }}
      accessConfigs:
      - name: External NAT
        type: ONE_TO_ONE_NAT

    tags:
      items:
      - "glusterfs-deployed-from-google-developer-console"

{% endfor %}
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Filename: path_utils.jinja

# Copyright 2015 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.

# path_utils.jinja
#
# Jinja macros for expanding short resource names into full paths
# Must have reference to the global env object, so when including this file,
# use the jinja import "with context" option.

{% macro projectPrefix() -%}
{{ "https://www.googleapis.com/compute/v1/projects/%s"|format(env["project"]) }}
{%- endmacro %}

{% macro imagePath(image) -%}
{% if image.startswith("https://") -%}
{{ image }}
{% elif image.startswith("debian-") -%}
{{ "https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/" + image }}
{% elif image.startswith("windows-") -%}
{{ "https://www.googleapis.com/compute/v1/projects/windows-cloud/global/images/" + image }}
{% endif -%}
{%- endmacro %}

{% macro machineTypePath(zone, machineType) -%}
{% if machineType.startswith("https://") -%}
{{ machineType }}
{% else -%}
{{ "%s/zones/%s/machineTypes/%s"|format(projectPrefix(), zone, machineType) }}
{% endif -%}
{%- endmacro %}

{% macro networkPath(network) -%}
{% if network.startswith("https://") -%}
{{ network }}
{% else -%}
{{ "%s/global/networks/%s"|format(projectPrefix(), network) }}
{% endif -%}
{%- endmacro %}

{% macro diskTypePath(zone, diskType) -%}
{% if diskType.startswith("https://") -%}
{{ diskType }}
{% else -%}
{{ "%s/zones/%s/diskTypes/%s"|format(projectPrefix(), zone, diskType) }}
{% endif -%}
{%- endmacro %}
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