From 478759a68668e68507d5731fc30254adbc907f24 Mon Sep 17 00:00:00 2001
From: Alex Stephen <alexstephen@google.com>
Date: Fri, 4 May 2018 11:29:38 -0700
Subject: [PATCH] New module: GCP Compute Subnetworks (#38621)

---
 .../cloud/google/gcp_compute_subnetwork.py    | 390 ++++++++++++++++++
 .../targets/gcp_compute_subnetwork/aliases    |   2 +
 .../gcp_compute_subnetwork/defaults/main.yml  |   3 +
 .../gcp_compute_subnetwork/meta/main.yml      |   0
 .../gcp_compute_subnetwork/tasks/main.yml     | 127 ++++++
 5 files changed, 522 insertions(+)
 create mode 100644 lib/ansible/modules/cloud/google/gcp_compute_subnetwork.py
 create mode 100644 test/integration/targets/gcp_compute_subnetwork/aliases
 create mode 100644 test/integration/targets/gcp_compute_subnetwork/defaults/main.yml
 create mode 100644 test/integration/targets/gcp_compute_subnetwork/meta/main.yml
 create mode 100644 test/integration/targets/gcp_compute_subnetwork/tasks/main.yml

diff --git a/lib/ansible/modules/cloud/google/gcp_compute_subnetwork.py b/lib/ansible/modules/cloud/google/gcp_compute_subnetwork.py
new file mode 100644
index 00000000000..86c3b0dd33f
--- /dev/null
+++ b/lib/ansible/modules/cloud/google/gcp_compute_subnetwork.py
@@ -0,0 +1,390 @@
+#!/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_subnetwork
+description:
+    - A VPC network is a virtual version of the traditional physical networks that exist
+      within and between physical data centers. A VPC network provides connectivity for
+      your Compute Engine virtual machine (VM) instances, Container Engine containers,
+      App Engine Flex services, and other network-related resources.
+    - Each GCP project contains one or more VPC networks. Each VPC network is a global
+      entity spanning all GCP regions. This global VPC network allows VM instances and
+      other resources to communicate with each other via internal, private IP addresses.
+    - Each VPC network is subdivided into subnets, and each subnet is contained within
+      a single region. You can have more than one subnet in a region for a given VPC network.
+      Each subnet has a contiguous private RFC1918 IP space. You create instances, containers,
+      and the like in these subnets.
+    - When you create an instance, you must create it in a subnet, and the instance draws
+      its internal IP address from that subnet.
+    - Virtual machine (VM) instances in a VPC network can communicate with instances in
+      all other subnets of the same VPC network, regardless of region, using their RFC1918
+      private IP addresses. You can isolate portions of the network, even entire subnets,
+      using firewall rules.
+short_description: Creates a GCP Subnetwork
+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. This field can be set only at resource creation time.
+        required: false
+    gateway_address:
+        description:
+            - The gateway address for default routes to reach destination addresses outside this
+              subnetwork. This field can be set only at resource creation time.
+        required: false
+    ip_cidr_range:
+        description:
+            - The range of internal addresses that are owned by this subnetwork.
+            - Provide this property when you create the subnetwork. For example, 10.0.0.0/8 or
+              192.168.0.0/16. Ranges must be unique and non-overlapping within a network. Only
+              IPv4 is supported.
+        required: false
+    name:
+        description:
+            - The name of the resource, provided by the client when initially creating the resource.
+              The name must be 1-63 characters long, and comply with RFC1035. Specifically, the
+              name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?`
+              which means the first character must be a lowercase letter, and all following characters
+              must be a dash, lowercase letter, or digit, except the last character, which cannot
+              be a dash.
+        required: false
+    network:
+        description:
+            - A reference to Network resource.
+        required: false
+    private_ip_google_access:
+        description:
+            - Whether the VMs in this subnet can access Google services without assigned external
+              IP addresses.
+        required: false
+        type: bool
+    region:
+        description:
+            - A reference to Region resource.
+        required: true
+extends_documentation_fragment: gcp
+'''
+
+EXAMPLES = '''
+- name: create a network
+  gcp_compute_network:
+      name: 'network-subnetwork'
+      auto_create_subnetworks: true
+      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 subnetwork
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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. This field can be set only at resource creation time.
+        returned: success
+        type: str
+    gateway_address:
+        description:
+            - The gateway address for default routes to reach destination addresses outside this
+              subnetwork. This field can be set only at resource creation time.
+        returned: success
+        type: str
+    id:
+        description:
+            - The unique identifier for the resource.
+        returned: success
+        type: int
+    ip_cidr_range:
+        description:
+            - The range of internal addresses that are owned by this subnetwork.
+            - Provide this property when you create the subnetwork. For example, 10.0.0.0/8 or
+              192.168.0.0/16. Ranges must be unique and non-overlapping within a network. Only
+              IPv4 is supported.
+        returned: success
+        type: str
+    name:
+        description:
+            - The name of the resource, provided by the client when initially creating the resource.
+              The name must be 1-63 characters long, and comply with RFC1035. Specifically, the
+              name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?`
+              which means the first character must be a lowercase letter, and all following characters
+              must be a dash, lowercase letter, or digit, except the last character, which cannot
+              be a dash.
+        returned: success
+        type: str
+    network:
+        description:
+            - A reference to Network resource.
+        returned: success
+        type: dict
+    private_ip_google_access:
+        description:
+            - Whether the VMs in this subnet can access Google services without assigned external
+              IP addresses.
+        returned: success
+        type: bool
+    region:
+        description:
+            - A reference to Region resource.
+        returned: success
+        type: str
+'''
+
+################################################################################
+# Imports
+################################################################################
+
+from ansible.module_utils.gcp_utils import navigate_hash, GcpSession, GcpModule, GcpRequest, replace_resource_dict
+import json
+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'),
+            gateway_address=dict(type='str'),
+            ip_cidr_range=dict(type='str'),
+            name=dict(type='str'),
+            network=dict(type='dict'),
+            private_ip_google_access=dict(type='bool'),
+            region=dict(required=True, type='str')
+        )
+    )
+
+    state = module.params['state']
+    kind = 'compute#subnetwork'
+
+    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):
+    auth = GcpSession(module, 'compute')
+    return wait_for_operation(module, auth.put(link, resource_to_request(module)))
+
+
+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#subnetwork',
+        u'description': module.params.get('description'),
+        u'gatewayAddress': module.params.get('gateway_address'),
+        u'ipCidrRange': module.params.get('ip_cidr_range'),
+        u'name': module.params.get('name'),
+        u'network': replace_resource_dict(module.params.get(u'network', {}), 'selfLink'),
+        u'privateIpGoogleAccess': module.params.get('private_ip_google_access'),
+        u'region': module.params.get('region')
+    }
+    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}/regions/{region}/subnetworks/{name}".format(**module.params)
+
+
+def collection(module):
+    return "https://www.googleapis.com/compute/v1/projects/{project}/regions/{region}/subnetworks".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'gatewayAddress': module.params.get('gateway_address'),
+        u'id': response.get(u'id'),
+        u'ipCidrRange': module.params.get('ip_cidr_range'),
+        u'name': response.get(u'name'),
+        u'network': replace_resource_dict(module.params.get(u'network', {}), 'selfLink'),
+        u'privateIpGoogleAccess': response.get(u'privateIpGoogleAccess'),
+        u'region': module.params.get('region')
+    }
+
+
+def async_op_url(module, extra_data=None):
+    if extra_data is None:
+        extra_data = {}
+    url = "https://www.googleapis.com/compute/v1/projects/{project}/regions/{region}/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#subnetwork')
+
+
+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)
+
+if __name__ == '__main__':
+    main()
diff --git a/test/integration/targets/gcp_compute_subnetwork/aliases b/test/integration/targets/gcp_compute_subnetwork/aliases
new file mode 100644
index 00000000000..9812f019ca4
--- /dev/null
+++ b/test/integration/targets/gcp_compute_subnetwork/aliases
@@ -0,0 +1,2 @@
+cloud/gcp
+unsupported
diff --git a/test/integration/targets/gcp_compute_subnetwork/defaults/main.yml b/test/integration/targets/gcp_compute_subnetwork/defaults/main.yml
new file mode 100644
index 00000000000..aa87a2a8e0e
--- /dev/null
+++ b/test/integration/targets/gcp_compute_subnetwork/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+# defaults file
+resource_name: '{{resource_prefix}}'
diff --git a/test/integration/targets/gcp_compute_subnetwork/meta/main.yml b/test/integration/targets/gcp_compute_subnetwork/meta/main.yml
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/test/integration/targets/gcp_compute_subnetwork/tasks/main.yml b/test/integration/targets/gcp_compute_subnetwork/tasks/main.yml
new file mode 100644
index 00000000000..5da29692c1c
--- /dev/null
+++ b/test/integration/targets/gcp_compute_subnetwork/tasks/main.yml
@@ -0,0 +1,127 @@
+---
+# ----------------------------------------------------------------------------
+#
+#     ***     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-subnetwork'
+      auto_create_subnetworks: true
+      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 subnetwork
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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 subnetwork
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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#subnetwork'"
+# ----------------------------------------------------------------------------
+- name: create a subnetwork that already exists
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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#subnetwork'"
+#----------------------------------------------------------
+- name: delete a subnetwork
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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: delete a subnetwork that does not exist
+  gcp_compute_subnetwork:
+      name: 'ansiblenet'
+      region: 'us-west1'
+      network: "{{ network }}"
+      ip_cidr_range: '172.16.0.0/16'
+      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-subnetwork'
+      auto_create_subnetworks: true
+      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