Adding dns samples

Change-Id: I6b14c5bc28679f783de26121d55d723677b4f450

Author: Jon Wayne Parrott

.coveragerc

@@ -5,6 +5,7 @@ include =
     blog/*
     cloud_logging/*
     compute/*
+    dns/*
     datastore/*
     managed_vms/*
     monitoring/*

dns/README.md

@@ -0,0 +1,26 @@
+# Google Cloud DNS Samples
+
+This section contains samples for [Google Cloud DNS](https://cloud.google.com/dns).
+
+## Running the samples
+
+1. Your environment must be setup with [authentication
+information](https://developers.google.com/identity/protocols/application-default-credentials#howtheywork). If you're running in your local development environment and you have the [Google Cloud SDK](https://cloud.google.com/sdk/) installed, you can do this easily by running:
+
+        $ gcloud init
+
+2. Install dependencies from `requirements.txt`:
+
+        $ pip install -r requirements.txt
+
+3. Depending on the sample, you may also need to create resources on the [Google Developers Console](https://console.developers.google.com). Refer to the sample description and associated documentation page.
+
+## Additional resources
+
+For more information on Cloud Storage you can visit:
+
+> https://cloud.google.com/dns
+
+For information on the Python Cloud Client Library visit:
+
+> https://googlecloudplatform.github.io/gcloud-python

dns/api/README.md

@@ -0,0 +1,4 @@
+# Cloud DNS API Samples
+
+<!-- auto-doc-link -->
+<!-- end-auto-doc-link -->

dns/api/main.py

@@ -0,0 +1,163 @@
+# Copyright 2016, Google, Inc.
+# 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.
+
+import argparse
+
+from gcloud import dns
+
+
+# [START create_zone]
+def create_zone(project_id, name, dns_name, description):
+    client = dns.Client(project=project_id)
+    zone = client.zone(
+        name,  # examplezonename
+        dns_name=dns_name)  # example.com.
+    zone.description = description
+    zone.create()
+    return zone
+# [END create_zone]
+
+
+# [START get_zone]
+def get_zone(project_id, name):
+    client = dns.Client(project=project_id)
+    zones, _ = client.list_zones()
+    zone = list(filter(lambda zone: zone.name == name, zones))
+    return zone.pop() if zone else None
+# [END get_zone]
+
+
+# [START list_zones]
+def list_zones(project_id):
+    client = dns.Client(project=project_id)
+    zones, _ = client.list_zones()
+    return [zone.name for zone in zones]
+# [END list_zones]
+
+
+# [START delete_zone]
+def delete_zone(project_id, name):
+    client = dns.Client(project=project_id)
+    zone = client.zone(name, None)
+    zone.delete()
+# [END delete_zone]
+
+
+# [START list_resource_records]
+def list_resource_records(project_id, zone_name):
+    client = dns.Client(project=project_id)
+    zone = client.zone(zone_name, None)
+
+    records, page_token = zone.list_resource_record_sets()
+    while page_token is not None:
+        next_batch, page_token = zone.list_resource_record_sets(
+            page_token=page_token)
+        records.extend(next_batch)
+
+    return [(record.name, record.record_type, record.ttl, record.rrdatas)
+            for record in records]
+# [END list_resource_records]
+
+
+# [START changes]
+def list_changes(project_id, zone_name):
+    client = dns.Client(project=project_id)
+    zone = client.zone(zone_name, None)
+
+    changes, _ = zone.list_changes()
+
+    return [(change.started, change.status) for change in changes]
+# [END changes]
+
+
+def create_command(args):
+    """Adds a zone with the given name, DNS name, and description."""
+    zone = create_zone(
+        args.project_id, args.name, args.dns_name, args.description)
+    print('Zone {} added.'.format(zone.name))
+
+
+def get_command(args):
+    """Gets a zone by name."""
+    zone = get_zone(args.project_id, args.name)
+    if not zone:
+        print('Zone not found.')
+    else:
+        print('Zone: {}, {}, {}'.format(
+            zone.name, zone.dns_name, zone.description))
+
+
+def list_command(args):
+    """Lists all zones."""
+    print(list_zones(args.project_id))
+
+
+def delete_command(args):
+    """Deletes a zone."""
+    delete_zone(args.project_id, args.name)
+    print('Zone {} deleted.'.format(args.name))
+
+
+def list_resource_records_command(args):
+    """List all resource records for a zone."""
+    records = list_resource_records(args.project_id, args.name)
+    for record in records:
+        print(record)
+
+
+def changes_command(args):
+    """List all changes records for a zone."""
+    changes = list_changes(args.project_id, args.name)
+    for change in changes:
+        print(change)
+
+
+if __name__ == '__main__':
+    parser = argparse.ArgumentParser()
+    subparsers = parser.add_subparsers()
+
+    parser.add_argument('--project-id', help='Your cloud project ID.')
+
+    create_parser = subparsers.add_parser(
+        'create', help=create_command.__doc__)
+    create_parser.set_defaults(func=create_command)
+    create_parser.add_argument('name', help='New zone name, e.g. "azonename".')
+    create_parser.add_argument(
+        'dns_name', help='New zone dns name, e.g. "example.com."')
+    create_parser.add_argument('description', help='New zone description.')
+
+    get_parser = subparsers.add_parser('get', help=get_command.__doc__)
+    get_parser.add_argument('name', help='Zone name, e.g. "azonename".')
+    get_parser.set_defaults(func=get_command)
+
+    list_parser = subparsers.add_parser('list', help=list_command.__doc__)
+    list_parser.set_defaults(func=list_command)
+
+    delete_parser = subparsers.add_parser(
+        'delete', help=delete_command.__doc__)
+    delete_parser.add_argument('name', help='Zone name, e.g. "azonename".')
+    delete_parser.set_defaults(func=delete_command)
+
+    list_rr_parser = subparsers.add_parser(
+        'list-resource-records', help=list_resource_records_command.__doc__)
+    list_rr_parser.add_argument('name', help='Zone name, e.g. "azonename".')
+    list_rr_parser.set_defaults(func=list_resource_records_command)
+
+    changes_parser = subparsers.add_parser(
+        'changes', help=changes_command.__doc__)
+    changes_parser.add_argument('name', help='Zone name, e.g. "azonename".')
+    changes_parser.set_defaults(func=changes_command)
+
+    args = parser.parse_args()
+
+    args.func(args)

dns/api/main_test.py

@@ -0,0 +1,93 @@
+# Copyright 2015, Google, Inc.
+# 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.
+
+from gcloud import dns
+from gcp.testing.flaky import flaky
+import pytest
+import main
+
+
+TEST_ZONE_NAME = 'test-zone'
+TEST_ZONE_DNS_NAME = 'theadora.is.'
+TEST_ZONE_DESCRIPTION = 'Test zone'
+
+
+@pytest.yield_fixture
+def client(cloud_config):
+    client = dns.Client(cloud_config.project)
+
+    yield client
+
+    # Delete anything created during the test.
+    for zone in client.list_zones()[0]:
+        zone.delete()
+
+
+@pytest.yield_fixture
+def zone(client, cloud_config):
+    zone = client.zone(TEST_ZONE_NAME, TEST_ZONE_DNS_NAME)
+    zone.description = TEST_ZONE_DESCRIPTION
+    zone.create()
+
+    yield zone
+
+    if zone.exists():
+        zone.delete()
+
+
+@flaky
+def test_create_zone(client, cloud_config):
+    zone = main.create_zone(
+        cloud_config.project,
+        TEST_ZONE_NAME,
+        TEST_ZONE_DNS_NAME,
+        TEST_ZONE_DESCRIPTION)
+
+    assert zone.name == TEST_ZONE_NAME
+    assert zone.dns_name == TEST_ZONE_DNS_NAME
+    assert zone.description == TEST_ZONE_DESCRIPTION
+
+
+@flaky
+def test_get_zone(client, cloud_config, zone):
+    zone = main.get_zone(cloud_config.project, TEST_ZONE_NAME)
+
+    assert zone.name == TEST_ZONE_NAME
+    assert zone.dns_name == TEST_ZONE_DNS_NAME
+    assert zone.description == TEST_ZONE_DESCRIPTION
+
+
+@flaky
+def test_list_zones(client, cloud_config, zone):
+    zones = main.list_zones(cloud_config.project)
+
+    assert TEST_ZONE_NAME in zones
+
+
+@flaky
+def test_delete_zone(client, cloud_config, zone):
+    main.delete_zone(cloud_config.project, TEST_ZONE_NAME)
+
+
+@flaky
+def test_list_resource_records(client, cloud_config, zone):
+    records = main.list_resource_records(cloud_config.project, TEST_ZONE_NAME)
+
+    assert records
+
+
+@flaky
+def test_list_changes(client, cloud_config, zone):
+    changes = main.list_changes(cloud_config.project, TEST_ZONE_NAME)
+
+    assert changes

dns/api/requirements.txt

@@ -0,0 +1 @@
+gcloud==0.12