[GitHub] [airflow] feluelle commented on a change in pull request #10273: Azure Log Analytics Workspace Task Logs Ingestion

[GitBox <gi...@apache.org>]

feluelle commented on a change in pull request #10273:
URL: https://github.com/apache/airflow/pull/10273#discussion_r513263047



##########
File path: airflow/providers/microsoft/azure/hooks/laws.py
##########
@@ -0,0 +1,118 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you 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.
+#
+"""
+This module contains integration with Azure LAWS.
+
+"""
+from datetime import datetime
+
+
+import hashlib
+import hmac
+import base64
+import requests
+
+from airflow.hooks.base_hook import BaseHook
+
+
+class LawsHook(BaseHook):
+    """
+    Interacts with Azure LAWS through api.
+
+    :param remote_conn_id: Not Used
+    :type remote_conn_id: str
+    :param account_id: Laws Account Id
+    :type account_id: str
+    :param access_key: Access Key
+    :type access_key: str
+    :param table_name: <Table Name>_CL
+    :type table_name: str
+    """
+
+    def __init__(self, remote_conn_id, account_id, access_key, table_name):
+        super().__init__()
+        self.conn_id = remote_conn_id
+        self.account_id = account_id
+        self.access_key = access_key
+        self.table_name = table_name
+
+    def build_signature(self, date, content_length, method, content_type, resource):
+        """Builds signature for Azure HTTP Data Collector API"""
+        x_headers = 'x-ms-date:' + date
+        string_to_hash = (
+            method + "\n" + str(content_length) + "\n" + content_type + "\n" + x_headers + "\n" + resource
+        )  # pylint: disable=line-too-long
+        bytes_to_hash = bytes(string_to_hash, encoding="utf-8")
+        decoded_key = base64.b64decode(self.access_key)
+        encoded_hash = base64.b64encode(
+            hmac.new(
+                decoded_key, bytes_to_hash, digestmod=hashlib.sha256
+            ).digest()  # pylint: disable=line-too-long
+        ).decode()
+        authorization = "SharedKey {}:{}".format(self.account_id, encoded_hash)
+        return authorization
+
+    @staticmethod
+    def _clean_execution_date(execution_date: datetime) -> str:
+        """
+        Clean up an execution date so that it is safe to query in log analytics
+        by formatting it correctly
+
+        :param execution_date: execution date of the dag run.
+        """
+        return execution_date.strftime("%Y-%m-%d %H:%M:%S")
+
+    def post_log(self, log, ti, ssl_verify=True):
+        """
+        Post data to Azure Log Analytics
+        """
+        execution_date = self._clean_execution_date(ti.execution_date)
+        body = {
+            "dag_id": ti.dag_id,
+            "task_id": ti.task_id,
+            "execution_date": execution_date,
+            "try_number": ti.try_number,
+            "part": 1,
+            "raw_data": log,
+        }
+        # TODO: Break content into said size like 20M.
+        custom_table_name = self.table_name
+        method = 'POST'
+        content_type = 'application/json'
+        resource = '/api/logs'
+        rfc1123date = datetime.utcnow().strftime('%a, %d %b %Y %H:%M:%S GMT')
+        content_length = len(body)
+        signature = self.build_signature(rfc1123date, content_length, method, content_type, resource)
+        uri = (
+            'https://' + self.account_id + '.ods.opinsights.azure.com' + resource + '?api-version=2016-04-01'
+        )
+
+        headers = {
+            'content-type': content_type,
+            'Authorization': signature,
+            'Log-Type': custom_table_name,
+            'x-ms-date': rfc1123date,
+        }
+        # TODO: Option to print to console instead API.
+        try:
+            response = requests.post(uri, data=body, headers=headers, verify=ssl_verify)
+            response.raise_for_status()

Review comment:
       Did that work? Or haven't you tried that yet?




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