Merge pull request #1 from geospatial-jeff/dev

v0.2
geospatial-jeff · Jun 28, 2019 · 1abb4c1 · 1abb4c1
2 parents 73d16fd + 09d7351
commit 1abb4c1
Show file tree

Hide file tree

Showing 10 changed files with 332 additions and 36 deletions.
diff --git a/README.md b/README.md
@@ -17,7 +17,9 @@ Use the [stac-updater CLI](stac_updater/cli.py) to build and deploy your service
 stac-updater new-service
 
 # Build AWS resources to update collection
-stac-updater update-collection --root https://stac.com/landsat-8-l1/catalog.json
+stac-updater update-collection --root https://stac.com/landsat-8-l1/catalog.json \
+                               --path {landsat:path}/{landsat:row} \
+                               --row  {date}/{id}
 
 # Modify kickoff event source to s3:ObjectCreated
 stac-updater modify-kickoff --type s3 --bucket_name stac-updater-kickoff
@@ -26,20 +28,14 @@ stac-updater modify-kickoff --type s3 --bucket_name stac-updater-kickoff
 stac-updater deploy
 ```
 
-Once deployed, any STAC Item uploaded to the `stac-updater-kickoff` bucket will be ingested by the service and added to the `https://stac.com/landsat-8-l1/catalog.json` collection.  Regardless of event source, the service expects the following JSON payload:
-
-| Field Name | Type  | Description | Example |
-| ---------- | ----- | ----------- | ------- |
-| stac_item  | dict  | **REQUIRED.** [STAC Item](https://github.com/radiantearth/stac-spec/tree/master/item-spec) to ingest into collection. | [link](https://github.com/radiantearth/stac-spec/blob/dev/item-spec/examples/sample-full.json) |
-| path  | str  | String pattern indicating subcatalogs.  Used by [sat-stac](https://github.com/sat-utils/sat-stac/blob/master/tutorial-1.ipynb#Views) to automatically build sub catalogs from item properties. | '${landsat:path}/${landsat:row}' |
-| filename  | str  | String pattern indicating filename. Used by [sat-stac](https://github.com/sat-utils/sat-stac/blob/master/tutorial-1.ipynb#Views) to automatically build item filename from item properties.| '${date}/${id}' |
+Once deployed, any STAC Item uploaded to the `stac-updater-kickoff` bucket will be ingested by the service and added to the `https://stac.com/landsat-8-l1/catalog.json` collection.  Regardless of event source, the service expects the payload to contain a [STAC Item](https://github.com/radiantearth/stac-spec/tree/master/item-spec).
 
 Each call to `update-collection` tells the services to update a single collection.  Updating multiple collections within a single deployment is accomplished with multiple calls to `update-collection`.  When updating multiple collections, the services uses a SNS fanout pattern to distribute messages across multiple queues (1 queue per collection).
 
 ![abc](docs/images/update-collection.png)
 
 ## SNS Notifications
-You may additionally deploy a SNS topic which publishes messages whenever a STAC Item is succesfully uploaded to a collection.
+You may deploy a SNS topic which publishes messages whenever a STAC Item is succesfully uploaded to a collection.
 
 ```
 # Add SNS notification
@@ -60,8 +56,38 @@ Once deployed, end-users may subscribe to the newly created SNS topic to be noti
 
 ![abc](docs/images/sns-notifications.png)
 
+## Logging
+You may pipe CloudWatch logs to a deployed instance of AWS Elasticsearch service for monitoring and visualizing with kibana.
+
+```
+# Add ES logging
+stac-updater add-logging --es_host xxxxxxxxxx.region.es.amazonaws.com
+```
+
+Logs are saved to the `stac_updater_logs_YYYYMMDD` index (a new index is created each day) with the following schema:
+
+| Field Name | Type  | Description | Example |
+| ---------- | ----- | ----------- | ------- |
+| id | string | Unique ID of the CloudWatch log event. | 34819275800 |
+| timestamp | date | Date of the lambda invocation. | June 23rd 2019, 21:25:26.649 |
+| BilledDuration | str | Time (ms) charged for execution. | 87 |
+| CollectionName | str | Name of collection. | landsat8 |
+| Duration | str | Runtime (ms) of the lambda function. | 442.49 |
+| ItemCount | number | Number of STAC Items processed by the invocation. | 4 |
+| ItemLinks | string array | URLs of STAC Items processed by the invocation. | ['https://stac.s3.amazonaws.com/landsat8/item.json'] |
+| MemorySize | number | Memory limit of lambda function. | 1024 |
+| MaxMemoryUsed | number | Maximum memory (MB) consumed by the lambda function. | 87 |
+| RequestId | str | Unique request ID of the lambda invocation. | 87 |
+
+The following image is a kibana time-series visualization showing number of lambda invocations binned into 15 second intervals after 200 STAC Items were pushed into the queue.  Notice how lambda scales up to handle the initial burst of messages.
+
+![es-logging-1](docs/images/es-logging-invokes.png)
+
+It took 86 total invocations to process the 200 STAC Items.
+
+![es-logging-2](docs/images/es-logging-summary.png)
+
+
 
 # TODOS
 - Add support for dynamic catalogs ([sat-api](https://github.com/sat-utils/sat-api), [staccato](https://github.com/boundlessgeo/staccato)).
-- Add aggregator service for metrics/logging etc on batch jobs.
-- Add SNS event source.
diff --git a/docs/images/es-logging-invokes.png b/docs/images/es-logging-invokes.png
diff --git a/docs/images/es-logging-summary.png b/docs/images/es-logging-summary.png
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,5 @@
 click==7.0
+elasticsearch>=6.0.0,<7.0.0
+requests-aws4auth==0.9
 sat-stac==0.1.3
 PyYAML==5.1.1
diff --git a/setup.py b/setup.py
@@ -4,7 +4,7 @@
     requirements = [line.rstrip() for line in reqs]
 
 setup(name="STAC Updater",
-      version='0.1',
+      version='0.2',
       author='Jeff Albrecht',
       author_email='geospatialjeff@gmail.com',
       packages=find_packages(exclude=['package']),

diff --git a/stac_updater/cli.py b/stac_updater/cli.py
@@ -24,19 +24,24 @@ def new_service():
 @click.option('--root', '-r', type=str, required=True, help="URL of collection.")
 @click.option('--long-poll/--short-poll', default=False, help="Enable long polling.")
 @click.option('--concurrency', type=int, default=1, help="Sets lambda concurrency limit when polling the queue.")
-def update_collection(root, long_poll, concurrency):
+@click.option('--path', type=str, help="Pattern used by sat-stac to build sub-catalogs.")
+@click.option('--filename', type=str, help="Pattern used by sat-stac to build item name.")
+def update_collection(root, long_poll, concurrency, path, filename):
     # Create a SQS queue for the collection
     # Subscribe SQS queue to SNS topic with filter policy on collection name
     # Configure lambda function and attach to SQS queue (use ENV variables to pass state)
 
     name = Collection.open(root).id
     filter_rule = {'collection': [name]}
 
+    pattern = re.compile('[\W_]+')
+    name = pattern.sub('', name)
+
     with open(sls_config_path, 'r') as f:
         # Using unsafe load to preserve type.
         sls_config = yaml.unsafe_load(f)
 
-        aws_resources = resources.update_collection(name, root, filter_rule, long_poll, concurrency)
+        aws_resources = resources.update_collection(name, root, filter_rule, long_poll, concurrency, path, filename)
         sls_config['resources']['Resources'].update(aws_resources['resources'])
         sls_config['functions'].update(aws_resources['functions'])
 
@@ -45,14 +50,17 @@ def update_collection(root, long_poll, concurrency):
 
 @stac_updater.command(name='modify-kickoff', short_help="modify event source of kickoff")
 @click.option('--type', '-t', type=str, default='lambda', help="Type of event source used by kickoff.")
-@click.option('--bucket_name', '-n', type=str, help="Required if type=='s3'; creates new bucket used by event source.")
-def modify_kickoff(type, bucket_name):
+@click.option('--bucket_name', type=str, help="Required if type=='s3'; defines name of bucket used by event source.")
+@click.option('--topic_name', type=str, help="Required if type=='sns'; defines name of SNS topic used by event source.")
+def modify_kickoff(type, bucket_name, topic_name):
     func_name = 'kickoff'
 
     if type == 's3':
         kickoff_func = resources.lambda_s3_trigger(func_name, bucket_name)
     elif type == 'lambda':
         kickoff_func = resources.lambda_invoke(func_name)
+    elif type == 'sns':
+        kickoff_func = resources.lambda_sns_trigger(func_name, topic_name)
     else:
         raise ValueError("The `type` parameter must be one of ['s3', 'lambda'].")
 
@@ -64,6 +72,9 @@ def modify_kickoff(type, bucket_name):
         sls_config = yaml.unsafe_load(f)
         sls_config['functions']['kickoff'].update(kickoff_func)
 
+        if type == 'lambda' and 'events' in sls_config['functions']['kickoff']:
+            del(sls_config['functions']['kickoff']['events'])
+
         with open(sls_config_path, 'w') as outf:
             yaml.dump(sls_config, outf, indent=1)
 
@@ -87,6 +98,36 @@ def add_notifications(topic_name):
         with open(sls_config_path, 'w') as outf:
             yaml.dump(sls_config, outf, indent=1)
 
+@stac_updater.command(name='add-logging', short_help="Pipe cloudwatch logs into elasticsearch.")
+@click.option('--es_host', type=str, required=True, help="Domain name of elasticsearch instance.")
+def add_logging(es_host):
+    # Add the ES_LOGGING lambda function (cloudwatch trigger).
+    # Add es_domain to ES_LOGGING lambda as environment variable.
+    # Update IAM permissions (es:*, arn:Aws:es:*)
+    with open(sls_config_path, 'r') as f:
+        sls_config = yaml.unsafe_load(f)
+
+        # Create lambda function
+        service_name = sls_config['custom']['service-name']
+        service_stage = sls_config['custom']['stage']
+        collection_names = [x.split('_')[0] for x in list(sls_config['functions']) if x not in ['kickoff', 'es_log_ingest']]
+        func = resources.lambda_cloudwatch_trigger("es_log_ingest", service_name, service_stage, collection_names)
+        func.update({'environment': {'ES_HOST': es_host}})
+        sls_config['functions'].update({'es_log_ingest': func})
+
+        # Expanding IAM role
+        if 'es:*' not in sls_config['provider']['iamRoleStatements'][0]['Action']:
+            sls_config['provider']['iamRoleStatements'][0]['Action'].append('es:*')
+        if 'arn:aws:es:*' not in sls_config['provider']['iamRoleStatements'][0]['Resource']:
+            sls_config['provider']['iamRoleStatements'][0]['Resource'].append('arn:aws:ecs:*')
+
+        with open(sls_config_path, 'w') as outf:
+            yaml.dump(sls_config, outf, indent=1)
+
+
+
+
+
 @stac_updater.command(name='deploy', short_help="deploy service to aws")
 def deploy():
     subprocess.call("docker build . -t stac-updater:latest", shell=True)

diff --git a/stac_updater/handler.py b/stac_updater/handler.py
@@ -1,8 +1,10 @@
 import os
 import json
+import base64
+import gzip
 
-from satstac import Collection, Item
 import boto3
+from satstac import Collection, Item
 
 from stac_updater import utils
 
@@ -13,7 +15,6 @@
 REGION = os.getenv('REGION')
 NOTIFICATION_TOPIC = os.getenv('NOTIFICATION_TOPIC')
 
-
 def kickoff(event, context):
     event_source = os.getenv('EVENT_SOURCE')
 
@@ -24,18 +25,22 @@ def kickoff(event, context):
         content_object = s3_res.Object(bucket, key)
         file_content = content_object.get()['Body'].read().decode('utf-8')
         payload = json.loads(file_content)
+    elif event_source == "sns":
+        payload = json.loads(event['Records'][0]['Sns']['Message'])
     else:
         # Default is lambda
         payload = event
 
+    print(payload)
+
     try:
-        coll_name = payload['stac_item']['properties']['collection']
+        coll_name = payload['properties']['collection']
     except KeyError:
-        coll_name = payload['stac_item']['collection']
+        coll_name = payload['collection']
 
     sns_client.publish(
         TopicArn=f"arn:aws:sns:{REGION}:{ACCOUNT_ID}:newStacItemTopic",
-        Message=json.dumps(event),
+        Message=json.dumps(payload),
         MessageAttributes={
             'collection': {
                 'DataType': 'String',
@@ -44,26 +49,51 @@ def kickoff(event, context):
         }
     )
 
-
 def update_collection(event, context):
     collection_root = os.getenv('COLLECTION_ROOT')
+    path = os.getenv('PATH')
+    filename = os.getenv('FILENAME')
+
+    item_count = len(event['Records'])
+    stac_links = []
 
     for record in event['Records']:
-        message = json.loads(record['body'])
+        stac_item = json.loads(record['body'])
+
+        print(stac_item)
 
         col = Collection.open(collection_root)
-        kwargs = {'item': Item(message['stac_item'])}
-        if 'path' in message:
-            kwargs.update({'path': message['path']})
-        if 'filename' in message:
-            kwargs.update({'filename': message['filename']})
+        collection_name = col.id
+        kwargs = {'item': Item(stac_item)}
+        if path:
+            kwargs.update({'path': '$' + '/$'.join(path.split('/'))})
+        if filename:
+            kwargs.update({'filename': '$' + '/$'.join(filename.split('/'))})
+        print(kwargs)
         col.add_item(**kwargs)
         col.save()
 
+        stac_links.append(kwargs['item'].links('self')[0])
+
         # Send message to SNS Topic if enabled
         if NOTIFICATION_TOPIC:
-            kwargs = utils.stac_to_sns(message['stac_item'])
+            kwargs = utils.stac_to_sns(kwargs['item'].data)
             kwargs.update({
                 'TopicArn': f"arn:aws:sns:{REGION}:{ACCOUNT_ID}:{NOTIFICATION_TOPIC}"
             })
-            sns_client.publish(**kwargs)
+            sns_client.publish(**kwargs)
+
+
+    print(f"LOGS CollectionName: {collection_name}\tItemCount: {item_count}\tItemLinks: {stac_links}")
+
+
+def es_log_ingest(event, context):
+    from stac_updater import logging
+
+    cw_data = event['awslogs']['data']
+    compressed_payload = base64.b64decode(cw_data)
+    uncompressed_payload = gzip.decompress(compressed_payload)
+    payload = json.loads(uncompressed_payload)
+
+    # Index to ES
+    logging.index_logs(payload)