Adding webapp extension for quickstart command

.github/CODEOWNERS

@@ -7,3 +7,5 @@
 /src/servicebus/ @v-ajnava
 
 /src/eventhubs/ @v-ajnava
+
+/src/webapps/ @panchagnula

src/webapps/azext_webapps/__init__.py

@@ -0,0 +1,33 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from azure.cli.core import AzCommandsLoader
+import azext_webapps._help  # pylint: disable=unused-import
+
+# pylint: disable=line-too-long
+
+
+class WebappsExtCommandLoader(AzCommandsLoader):
+
+    def __init__(self, cli_ctx=None):
+        from azure.cli.core.commands import CliCommandType
+        webapps_custom = CliCommandType(
+            operations_tmpl='azext_webapps.custom#{}')
+        super(WebappsExtCommandLoader, self).__init__(cli_ctx=cli_ctx, custom_command_type=webapps_custom, min_profile="2017-03-10-profile")
+
+    def load_command_table(self, _):
+        with self.command_group('webapp') as g:
+            g.custom_command('quickstart', 'create_deploy_webapp')
+        return self.command_table
+
+    def load_arguments(self, _):
+        with self.argument_context('webapp quickstart') as c:
+            c.argument('name', options_list=['--name', '-n'], help='name of the new webapp')
+            c.argument('dryrun',
+                       help="shows summary of the create operation instead of actually creating and deploying the app",
+                       default=False, action='store_true')
+
+
+COMMAND_LOADER_CLS = WebappsExtCommandLoader

src/webapps/azext_webapps/_help.py

@@ -0,0 +1,16 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from knack.help_files import helps
+
+
+helps['webapp quickstart'] = """
+    type: command
+    short-summary: Create and deploy a node web app
+    examples:
+        - name: Create a web app with the default configuration.
+          text: >
+            az webapp quickstart -n MyUniqueAppName
+"""

src/webapps/azext_webapps/azext_metadata.json

@@ -0,0 +1,3 @@
+{
+    "azext.minCliCoreVersion": "2.0.24"     
+}

src/webapps/azext_webapps/create_util.py

@@ -0,0 +1,85 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+import os
+import zipfile
+from azure.cli.core.commands.client_factory import get_mgmt_service_client
+from azure.mgmt.resource.resources.models import ResourceGroup
+
+
+def _resource_client_factory(cli_ctx, **_):
+    from azure.cli.core.profiles import ResourceType
+    return get_mgmt_service_client(cli_ctx, ResourceType.MGMT_RESOURCE_RESOURCES)
+
+
+def web_client_factory(cli_ctx, **_):
+    from azure.mgmt.web import WebSiteManagementClient
+    return get_mgmt_service_client(cli_ctx, WebSiteManagementClient)
+
+
+def zip_contents_from_dir(dirPath):
+    relroot = os.path.abspath(os.path.join(dirPath, os.pardir))
+    path_and_file = os.path.splitdrive(dirPath)[1]
+    file_val = os.path.split(path_and_file)[1]
+    zip_file_path = relroot + "\\" + file_val + ".zip"
+    abs_src = os.path.abspath(dirPath)
+    with zipfile.ZipFile("{}".format(zip_file_path), "w", zipfile.ZIP_DEFLATED) as zf:
+        for dirname, subdirs, files in os.walk(dirPath):
+            # skip node_modules folder for Node apps,
+            # since zip_deployment will perfom the build operation
+            if 'node_modules' in subdirs:
+                subdirs.remove('node_modules')
+            for filename in files:
+                absname = os.path.abspath(os.path.join(dirname, filename))
+                arcname = absname[len(abs_src) + 1:]
+                zf.write(absname, arcname)
+    return zip_file_path
+
+
+def is_node_application(path):
+    # for node application, package.json should exisit in the application root dir
+    # if this exists we pass the path of the file to read it contents & get version
+    package_json_file = os.path.join(path, 'package.json')
+    if os.path.isfile(package_json_file):
+        return package_json_file
+    return ''
+
+
+def get_node_runtime_version_toSet():
+    version_val = "8.0"
+    # trunc_version = float(node_version[:3])
+    # TODO: call the list_runtimes once there is an API that returns the supported versions
+    return version_val
+
+
+def create_resource_group(cmd, rg_name, location):
+    rcf = _resource_client_factory(cmd.cli_ctx)
+    rg_params = ResourceGroup(location=location)
+    return rcf.resource_groups.create_or_update(rg_name, rg_params)
+
+
+def check_resource_group_exists(cmd, rg_name):
+    rcf = _resource_client_factory(cmd.cli_ctx)
+    return rcf.resource_groups.check_existence(rg_name)
+
+
+def check_resource_group_supports_linux(cmd, rg_name, location):
+    # get all appservice plans from RG
+    client = web_client_factory(cmd.cli_ctx)
+    plans = list(client.app_service_plans.list_by_resource_group(rg_name))
+    # filter by location & reserverd=false
+    for item in plans:
+        if item.location == location and not item.reserved:
+            return False
+    return True
+
+
+def check_if_asp_exists(cmd, rg_name, asp_name):
+    # get all appservice plans from RG
+    client = web_client_factory(cmd.cli_ctx)
+    for item in list(client.app_service_plans.list_by_resource_group(rg_name)):
+        if item.name == asp_name:
+            return True
+    return False

src/webapps/azext_webapps/custom.py

@@ -0,0 +1,146 @@
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from __future__ import print_function
+from knack.log import get_logger
+
+from azure.mgmt.web.models import (AppServicePlan, SkuDescription)
+
+from azure.cli.command_modules.appservice.custom import (
+    enable_zip_deploy,
+    create_webapp,
+    update_app_settings,
+    _get_sku_name)
+
+from .create_util import (
+    zip_contents_from_dir,
+    is_node_application,
+    get_node_runtime_version_toSet,
+    create_resource_group,
+    check_resource_group_exists,
+    check_resource_group_supports_linux,
+    check_if_asp_exists,
+    web_client_factory
+)
+
+logger = get_logger(__name__)
+
+# pylint:disable=no-member,too-many-lines,too-many-locals,too-many-statements
+
+
+def create_deploy_webapp(cmd, name, location=None, dryrun=False):
+    import os
+    import json
+
+    client = web_client_factory(cmd.cli_ctx)
+    sku = "S1"
+    os_val = "Linux"
+    language = "node"
+    full_sku = _get_sku_name(sku)
+
+    if location is None:
+        locs = client.list_geo_regions(sku, True)
+        available_locs = []
+        for loc in locs:
+            available_locs.append(loc.geo_region_name)
+        location = available_locs[0]
+
+    # Remove spaces from the location string, incase the GeoRegion string is used
+        loc_name = location.replace(" ", "")
+
+    asp = "appsvc_asp_{}_{}".format(os_val, loc_name)
+    rg = "appsvc_rg_{}_{}".format(os_val, loc_name)
+
+    # the code to deploy is expected to be the current directory the command is running from
+    src_dir = os.getcwd()
+
+    # if dir is empty, show a message in dry run
+    do_deployment = False if os.listdir(src_dir) == [] else True
+    package_json_path = is_node_application(src_dir)
+
+    str_no_contents_warn = ""
+    if not do_deployment:
+        str_no_contents_warn = "[Empty directory, no deployment will be triggered]"
+
+    if package_json_path == '':
+        node_version = "[No package.json file found in root directory, not a Node app?]"
+        version_used_create = "8.0"
+    else:
+        with open(package_json_path) as data_file:
+            data = json.load(data_file)
+            node_version = data['version']
+            version_used_create = get_node_runtime_version_toSet()
+
+    # Resource group: check if default RG is set
+    default_rg = cmd.cli_ctx.config.get('defaults', 'group')
+    if (default_rg and check_resource_group_supports_linux(cmd, default_rg, location)):
+        rg = default_rg
+        rg_mssg = "[Using default Resource group]"
+    else:
+        rg_mssg = ""
+
+    runtime_version = "{}|{}".format(language, version_used_create)
+    src_path = "{} {}".format(src_dir.replace("\\", "\\\\"), str_no_contents_warn)
+    rg_str = "{} {}".format(rg, rg_mssg)
+
+    dry_run_str = r""" {
+            "name" : "%s",
+            "serverfarm" : "%s",
+            "resourcegroup" : "%s",
+            "sku": "%s",
+            "os": "%s",
+            "location" : "%s",
+            "src_path" : "%s",
+            "version_detected": "%s",
+            "version_to_create": "%s"
+            }
+            """ % (name, asp, rg_str, full_sku, os_val, location, src_path,
+                   node_version, runtime_version)
+
+    create_json = json.dumps(json.loads(dry_run_str), indent=4, sort_keys=True)
+    if dryrun:
+        logger.warning("""
+            Web app will be created with the below configuration,
+            re-run command without the --dryrun flag to create & deploy a new app
+            """)
+        logger.warning(create_json)
+        return None
+
+    # create RG if the RG doesn't already exist
+    if not check_resource_group_exists(cmd, rg):
+        logger.warning("Creating Resource group '%s' ...", rg)
+        create_resource_group(cmd, rg, location)
+        logger.warning("Resource group creation complete")
+    else:
+        logger.warning("Resource group '%s' already exists.", rg)
+
+    # create asp
+    if not check_if_asp_exists(cmd, rg, asp):
+        logger.warning("Creating App service plan '%s' ...", asp)
+        sku_def = SkuDescription(tier=full_sku, name=sku, capacity=1)
+        plan_def = AppServicePlan(loc_name, app_service_plan_name=asp,
+                                  sku=sku_def, reserved=True)
+        client.app_service_plans.create_or_update(rg, asp, plan_def)
+        logger.warning("App service plan creation complete")
+    else:
+        logger.warning("App service plan '%s' already exists.", asp)
+
+    # create the Linux app
+    logger.warning("Creating app '%s' ....", name)
+    create_webapp(cmd, rg, name, asp, runtime_version)
+    logger.warning("Webapp creation complete")
+
+    # setting to build after deployment
+    logger.warning("Updating app settings to enable build after deployment")
+    update_app_settings(cmd, rg, name, ["SCM_DO_BUILD_DURING_DEPLOYMENT=true"])
+
+    # zip contents & deploy
+    logger.warning("Creating zip with contents of dir %s ...", src_dir)
+    zip_file_path = zip_contents_from_dir(src_dir)
+
+    logger.warning("Deploying and building contents to app. This operation can take some time to finish...")
+    enable_zip_deploy(cmd, rg, name, zip_file_path)
+    logger.warning("All done. %s", create_json)
+    return None

src/webapps/setup.cfg

@@ -0,0 +1,2 @@
+[bdist_wheel]
+universal=1

src/webapps/setup.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+# --------------------------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for license information.
+# --------------------------------------------------------------------------------------------
+
+from codecs import open
+from setuptools import setup, find_packages
+
+VERSION = "0.0.2"
+
+CLASSIFIERS = [
+    'Development Status :: 4 - Beta',
+    'Intended Audience :: Developers',
+    'Intended Audience :: System Administrators',
+    'Programming Language :: Python',
+    'Programming Language :: Python :: 2',
+    'Programming Language :: Python :: 2.7',
+    'Programming Language :: Python :: 3',
+    'Programming Language :: Python :: 3.4',
+    'Programming Language :: Python :: 3.5',
+    'Programming Language :: Python :: 3.6',
+    'License :: OSI Approved :: MIT License',
+]
+
+DEPENDENCIES = []
+
+setup(
+    name='webapps',
+    version=VERSION,
+    description='An Azure CLI Extension to manage appservice resources',
+    long_description='An Azure CLI Extension to manage appservice resources',
+    license='MIT',
+    author='Sisira Panchagnula',
+    author_email='[email protected]',
+    url='https://github.com/Azure/azure-cli-extensions',
+    classifiers=CLASSIFIERS,
+    packages=find_packages(exclude=["tests"]),
+    install_requires=DEPENDENCIES
+)