New module: GCP Compute Instance Groups (#38617)

lib/ansible/modules/cloud/google/gcp_compute_instance_group.py

@@ -0,0 +1,434 @@
+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2017 Google
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+# ----------------------------------------------------------------------------
+#
+#     ***     AUTO GENERATED CODE    ***    AUTO GENERATED CODE     ***
+#
+# ----------------------------------------------------------------------------
+#
+#     This file is automatically generated by Magic Modules and manual
+#     changes will be clobbered when the file is regenerated.
+#
+#     Please read more about how to change this file at
+#     https://www.github.com/GoogleCloudPlatform/magic-modules
+#
+# ----------------------------------------------------------------------------
+
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+################################################################################
+# Documentation
+################################################################################
+
+ANSIBLE_METADATA = {'metadata_version': '1.1',
+                    'status': ["preview"],
+                    'supported_by': 'community'}
+
+DOCUMENTATION = '''
+---
+module: gcp_compute_instance_group
+description:
+    - Represents an Instance Group resource. Instance groups are self-managed and can
+      contain identical or different instances. Instance groups do not use an instance
+      template. Unlike managed instance groups, you must create and add instances to an
+      instance group manually.
+short_description: Creates a GCP InstanceGroup
+version_added: 2.6
+author: Google Inc. (@googlecloudplatform)
+requirements:
+    - python >= 2.6
+    - requests >= 2.18.4
+    - google-auth >= 1.3.0
+options:
+    state:
+        description:
+            - Whether the given object should exist in GCP
+        choices: ['present', 'absent']
+        default: 'present'
+    description:
+        description:
+            - An optional description of this resource. Provide this property when you create
+              the resource.
+        required: false
+    name:
+        description:
+            - The name of the instance group.
+            - The name must be 1-63 characters long, and comply with RFC1035.
+        required: false
+    named_ports:
+        description:
+            - Assigns a name to a port number.
+            - 'For example: {name: "http", port: 80}.'
+            - This allows the system to reference ports by the assigned name instead of a port
+              number. Named ports can also contain multiple ports.
+            - 'For example: [{name: "http", port: 80},{name: "http", port: 8080}]  Named ports
+              apply to all instances in this instance group.'
+        required: false
+        suboptions:
+            name:
+                description:
+                    - The name for this named port.
+                    - The name must be 1-63 characters long, and comply with RFC1035.
+                required: false
+            port:
+                description:
+                    - The port number, which can be a value between 1 and 65535.
+                required: false
+    network:
+        description:
+            - A reference to Network resource.
+        required: false
+    region:
+        description:
+            - A reference to Region resource.
+        required: false
+    subnetwork:
+        description:
+            - A reference to Subnetwork resource.
+        required: false
+    zone:
+        description:
+            - A reference to Zone resource.
+        required: true
+extends_documentation_fragment: gcp
+'''
+
+EXAMPLES = '''
+- name: create a network
+  gcp_compute_network:
+      name: 'network-instancegroup'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: present
+  register: network
+- name: create a instance group
+  gcp_compute_instance_group:
+      name: testObject
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: testProject
+      auth_kind: service_account
+      service_account_file: /tmp/auth.pem
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: present
+'''
+
+RETURN = '''
+    creation_timestamp:
+        description:
+            - Creation timestamp in RFC3339 text format.
+        returned: success
+        type: str
+    description:
+        description:
+            - An optional description of this resource. Provide this property when you create
+              the resource.
+        returned: success
+        type: str
+    id:
+        description:
+            - A unique identifier for this instance group.
+        returned: success
+        type: int
+    name:
+        description:
+            - The name of the instance group.
+            - The name must be 1-63 characters long, and comply with RFC1035.
+        returned: success
+        type: str
+    named_ports:
+        description:
+            - Assigns a name to a port number.
+            - 'For example: {name: "http", port: 80}.'
+            - This allows the system to reference ports by the assigned name instead of a port
+              number. Named ports can also contain multiple ports.
+            - 'For example: [{name: "http", port: 80},{name: "http", port: 8080}]  Named ports
+              apply to all instances in this instance group.'
+        returned: success
+        type: complex
+        contains:
+            name:
+                description:
+                    - The name for this named port.
+                    - The name must be 1-63 characters long, and comply with RFC1035.
+                returned: success
+                type: str
+            port:
+                description:
+                    - The port number, which can be a value between 1 and 65535.
+                returned: success
+                type: int
+    network:
+        description:
+            - A reference to Network resource.
+        returned: success
+        type: dict
+    region:
+        description:
+            - A reference to Region resource.
+        returned: success
+        type: str
+    subnetwork:
+        description:
+            - A reference to Subnetwork resource.
+        returned: success
+        type: dict
+    zone:
+        description:
+            - A reference to Zone resource.
+        returned: success
+        type: str
+'''
+
+################################################################################
+# Imports
+################################################################################
+
+from ansible.module_utils.gcp_utils import navigate_hash, GcpSession, GcpModule, GcpRequest, remove_nones_from_dict, replace_resource_dict
+import json
+import re
+import time
+
+################################################################################
+# Main
+################################################################################
+
+
+def main():
+    """Main function"""
+
+    module = GcpModule(
+        argument_spec=dict(
+            state=dict(default='present', choices=['present', 'absent'], type='str'),
+            description=dict(type='str'),
+            name=dict(type='str'),
+            named_ports=dict(type='list', elements='dict', options=dict(
+                name=dict(type='str'),
+                port=dict(type='int')
+            )),
+            network=dict(type='dict'),
+            region=dict(type='str'),
+            subnetwork=dict(type='dict'),
+            zone=dict(required=True, type='str')
+        )
+    )
+
+    state = module.params['state']
+    kind = 'compute#instanceGroup'
+
+    fetch = fetch_resource(module, self_link(module), kind)
+    changed = False
+
+    if fetch:
+        if state == 'present':
+            if is_different(module, fetch):
+                fetch = update(module, self_link(module), kind, fetch)
+                changed = True
+        else:
+            delete(module, self_link(module), kind, fetch)
+            fetch = {}
+            changed = True
+    else:
+        if state == 'present':
+            fetch = create(module, collection(module), kind)
+            changed = True
+        else:
+            fetch = {}
+
+    fetch.update({'changed': changed})
+
+    module.exit_json(**fetch)
+
+
+def create(module, link, kind):
+    auth = GcpSession(module, 'compute')
+    return wait_for_operation(module, auth.post(link, resource_to_request(module)))
+
+
+def update(module, link, kind, fetch):
+    module.fail_json(msg="InstanceGroup cannot be edited")
+
+
+def delete(module, link, kind, fetch):
+    auth = GcpSession(module, 'compute')
+    return wait_for_operation(module, auth.delete(link))
+
+
+def resource_to_request(module):
+    request = {
+        u'kind': 'compute#instanceGroup',
+        u'description': module.params.get('description'),
+        u'name': module.params.get('name'),
+        u'namedPorts': InstaGroupNamedPortsArray(module.params.get('named_ports', []), module).to_request(),
+        u'network': replace_resource_dict(module.params.get(u'network', {}), 'selfLink'),
+        u'region': region_selflink(module.params.get('region'), module.params),
+        u'subnetwork': replace_resource_dict(module.params.get(u'subnetwork', {}), 'selfLink')
+    }
+    return_vals = {}
+    for k, v in request.items():
+        if v:
+            return_vals[k] = v
+
+    return return_vals
+
+
+def fetch_resource(module, link, kind):
+    auth = GcpSession(module, 'compute')
+    return return_if_object(module, auth.get(link), kind)
+
+
+def self_link(module):
+    return "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/instanceGroups/{name}".format(**module.params)
+
+
+def collection(module):
+    return "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/instanceGroups".format(**module.params)
+
+
+def return_if_object(module, response, kind):
+    # If not found, return nothing.
+    if response.status_code == 404:
+        return None
+
+    # If no content, return nothing.
+    if response.status_code == 204:
+        return None
+
+    try:
+        module.raise_for_status(response)
+        result = response.json()
+    except getattr(json.decoder, 'JSONDecodeError', ValueError) as inst:
+        module.fail_json(msg="Invalid JSON response with error: %s" % inst)
+
+    if navigate_hash(result, ['error', 'errors']):
+        module.fail_json(msg=navigate_hash(result, ['error', 'errors']))
+    if result['kind'] != kind:
+        module.fail_json(msg="Incorrect result: {kind}".format(**result))
+
+    return result
+
+
+def is_different(module, response):
+    request = resource_to_request(module)
+    response = response_to_hash(module, response)
+
+    # Remove all output-only from response.
+    response_vals = {}
+    for k, v in response.items():
+        if k in request:
+            response_vals[k] = v
+
+    request_vals = {}
+    for k, v in request.items():
+        if k in response:
+            request_vals[k] = v
+
+    return GcpRequest(request_vals) != GcpRequest(response_vals)
+
+
+# Remove unnecessary properties from the response.
+# This is for doing comparisons with Ansible's current parameters.
+def response_to_hash(module, response):
+    return {
+        u'creationTimestamp': response.get(u'creationTimestamp'),
+        u'description': response.get(u'description'),
+        u'id': response.get(u'id'),
+        u'name': response.get(u'name'),
+        u'namedPorts': InstaGroupNamedPortsArray(response.get(u'namedPorts', []), module).from_response(),
+        u'network': response.get(u'network'),
+        u'region': response.get(u'region'),
+        u'subnetwork': response.get(u'subnetwork')
+    }
+
+
+def region_selflink(name, params):
+    if name is None:
+        return
+    url = r"https://www.googleapis.com/compute/v1/projects/.*/regions/[a-z1-9\-]*"
+    if not re.match(url, name):
+        name = "https://www.googleapis.com/compute/v1/projects/{project}/regions/%s".format(**params) % name
+    return name
+
+
+def async_op_url(module, extra_data=None):
+    if extra_data is None:
+        extra_data = {}
+    url = "https://www.googleapis.com/compute/v1/projects/{project}/zones/{zone}/operations/{op_id}"
+    combined = extra_data.copy()
+    combined.update(module.params)
+    return url.format(**combined)
+
+
+def wait_for_operation(module, response):
+    op_result = return_if_object(module, response, 'compute#operation')
+    if op_result is None:
+        return None
+    status = navigate_hash(op_result, ['status'])
+    wait_done = wait_for_completion(status, op_result, module)
+    return fetch_resource(module, navigate_hash(wait_done, ['targetLink']), 'compute#instanceGroup')
+
+
+def wait_for_completion(status, op_result, module):
+    op_id = navigate_hash(op_result, ['name'])
+    op_uri = async_op_url(module, {'op_id': op_id})
+    while status != 'DONE':
+        raise_if_errors(op_result, ['error', 'errors'], 'message')
+        time.sleep(1.0)
+        if status not in ['PENDING', 'RUNNING', 'DONE']:
+            module.fail_json(msg="Invalid result %s" % status)
+        op_result = fetch_resource(module, op_uri, 'compute#operation')
+        status = navigate_hash(op_result, ['status'])
+    return op_result
+
+
+def raise_if_errors(response, err_path, module):
+    errors = navigate_hash(response, err_path)
+    if errors is not None:
+        module.fail_json(msg=errors)
+
+
+class InstaGroupNamedPortsArray(object):
+    def __init__(self, request, module):
+        self.module = module
+        if request:
+            self.request = request
+        else:
+            self.request = []
+
+    def to_request(self):
+        items = []
+        for item in self.request:
+            items.append(self._request_for_item(item))
+        return items
+
+    def from_response(self):
+        items = []
+        for item in self.request:
+            items.append(self._response_from_item(item))
+        return items
+
+    def _request_for_item(self, item):
+        return remove_nones_from_dict({
+            u'name': item.get('name'),
+            u'port': item.get('port')
+        })
+
+    def _response_from_item(self, item):
+        return remove_nones_from_dict({
+            u'name': item.get(u'name'),
+            u'port': item.get(u'port')
+        })
+
+if __name__ == '__main__':
+    main()

test/integration/targets/gcp_compute_instance_group/aliases

@@ -0,0 +1,2 @@
+cloud/gcp
+unsupported

test/integration/targets/gcp_compute_instance_group/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+# defaults file
+resource_name: '{{resource_prefix}}'

test/integration/targets/gcp_compute_instance_group/tasks/main.yml

@@ -0,0 +1,153 @@
+---
+# ----------------------------------------------------------------------------
+#
+#     ***     AUTO GENERATED CODE    ***    AUTO GENERATED CODE     ***
+#
+# ----------------------------------------------------------------------------
+#
+#     This file is automatically generated by Magic Modules and manual
+#     changes will be clobbered when the file is regenerated.
+#
+#     Please read more about how to change this file at
+#     https://www.github.com/GoogleCloudPlatform/magic-modules
+#
+# ----------------------------------------------------------------------------
+# Pre-test setup
+- name: create a network
+  gcp_compute_network:
+      name: 'network-instancegroup'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: present
+  register: network
+- name: delete a instance group
+  gcp_compute_instance_group:
+      name: "{{ resource_name }}"
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: absent
+#----------------------------------------------------------
+- name: create a instance group
+  gcp_compute_instance_group:
+      name: "{{ resource_name }}"
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: present
+  register: result
+- name: assert changed is true
+  assert:
+    that:
+      - result.changed == true
+      - "result.kind == 'compute#instanceGroup'"
+- name: verify that instance_group was created
+  shell: |
+    gcloud compute instance-groups unmanaged describe  --project="{{ gcp_project }}"  --zone="us-central1-a"  "{{ resource_name }}"
+  register: results
+- name: verify that command succeeded
+  assert:
+    that:
+      - results.rc == 0
+# ----------------------------------------------------------------------------
+- name: create a instance group that already exists
+  gcp_compute_instance_group:
+      name: "{{ resource_name }}"
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: present
+  register: result
+- name: assert changed is false
+  assert:
+    that:
+      - result.changed == false
+      - "result.kind == 'compute#instanceGroup'"
+#----------------------------------------------------------
+- name: delete a instance group
+  gcp_compute_instance_group:
+      name: "{{ resource_name }}"
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: absent
+  register: result
+- name: assert changed is true
+  assert:
+    that:
+      - result.changed == true
+      - result.has_key('kind') == False
+- name: verify that instance_group was deleted
+  shell: |
+    gcloud compute instance-groups unmanaged describe  --project="{{ gcp_project }}"  --zone="us-central1-a"  "{{ resource_name }}"
+  register: results
+  failed_when: results.rc == 0
+- name: verify that command succeeded
+  assert:
+    that:
+      - results.rc == 1
+      - "\"'projects/{{ gcp_project }}/zones/us-central1-a/instanceGroups/{{ resource_name }}' was not found\" in results.stderr"
+# ----------------------------------------------------------------------------
+- name: delete a instance group that does not exist
+  gcp_compute_instance_group:
+      name: "{{ resource_name }}"
+      named_ports:
+        - name: ansible
+          port: 1234
+      network: "{{ network }}"
+      zone: 'us-central1-a'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: absent
+  register: result
+- name: assert changed is false
+  assert:
+    that:
+      - result.changed == false
+      - result.has_key('kind') == False
+#---------------------------------------------------------
+# Post-test teardown
+- name: delete a network
+  gcp_compute_network:
+      name: 'network-instancegroup'
+      project: "{{ gcp_project }}"
+      auth_kind: "{{ gcp_cred_kind }}"
+      service_account_file: "{{ gcp_cred_file }}"
+      scopes:
+        - https://www.googleapis.com/auth/compute
+      state: absent
+  register: network