CloudWatch Logs
Log groups, streams, events, filter patterns, CloudWatch Logs Insights queries.
Quick start
import boto3
logs = boto3.client("logs", endpoint_url="http://localhost:4566",
region_name="us-east-1",
aws_access_key_id="test", aws_secret_access_key="test")
logs.create_log_group(logGroupName="/app")
logs.create_log_stream(logGroupName="/app", logStreamName="main")
logs.put_log_events(logGroupName="/app", logStreamName="main",
logEvents=[{"timestamp": 1, "message": "hello"}])
Supported operations
42 operations exposed by this service as of MiniStack 1.4.21. Extracted directly from the handler dispatch in the source module.
CreateDelivery
CreateLogGroup
CreateLogStream
DeleteDelivery
DeleteDeliveryDestination
DeleteDeliverySource
DeleteDestination
DeleteLogGroup
DeleteLogStream
DeleteMetricFilter
DeleteRetentionPolicy
DeleteSubscriptionFilter
DescribeDeliveries
DescribeDeliveryDestinations
DescribeDeliverySources
DescribeDestinations
DescribeLogGroups
DescribeLogStreams
DescribeMetricFilters
DescribeSubscriptionFilters
FilterLogEvents
GetDelivery
GetDeliveryDestination
GetDeliverySource
GetLogEvents
GetQueryResults
ListTagsForResource
ListTagsLogGroup
PutDeliveryDestination
PutDeliverySource
PutDestination
PutDestinationPolicy
PutLogEvents
PutMetricFilter
PutRetentionPolicy
PutSubscriptionFilter
StartQuery
StopQuery
TagLogGroup
TagResource
UntagLogGroup
UntagResource
CloudFormation
The CloudFormation engine provisions these resource types via this service:
AWS::Logs::LogGroup
AWS::Logs::ResourcePolicy
AWS::Logs::SubscriptionFilter
See CloudFormation engine for intrinsic support and lifecycle details.
Known limitations
- Retention policies are stored but log data is not automatically expired.
- Subscription filters deliver matching events to Lambda destinations (awslogs gzip+base64 envelope); Kinesis / Firehose destinations are stored but not delivered.
- ECS task logs are not piped into log groups. CodeBuild build logs ARE written when a build runs with MINISTACK_CODEBUILD_EXECUTE=1.
Source
ministack/services/cloudwatch_logs.py
Read the source to verify the ops list above — dispatch tables and handler functions are the ground truth.