Docker Swarm on AWS cron jobs
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This container guides the cluster instances through its lifecycle performing maintenance tasks
Example project: Terraform docker-swarm
This container performs several maintenance and cleanup operations for a Docker Swarm node running on AWS.
Cleanup (Manager Nodes) every 5 minutes Removes downed/downscaled nodes from the swarm based on events on a SQS queue.
Refresh (Manager Nodes) every 4 minutes Updates the DynamodDB table with the current Docker Swarm primary Manager.
Vacuum (All Nodes) every day between 00 and 01
Runs docker system prune --force to remove all dangling resources.
Watcher (All Nodes) every minute Handles AutoScalingGroup Instance shutdown by reading events for the node on a SQS queue and notifying the ASG once we are done exiting the swarm.
| Parameter | Example | Description |
|---|---|---|
| DYNAMODB_TABLE | - | DynamodDB table ID |
| NODE_TYPE | worker / manager | Role of the node we are running on |
| REGION | eu-central-1 | AWS Region ID |
| VPC_ID | vpc-123123 | AWS VPC ID |
| SWARM_QUEUE | - | SQS Queue ID for swarm control |
| CLEANUP_QUEUE | - | SQS Queue ID for cleaup actions |
| RUN_VACUUM | yes / no | Enable or Disable Vacuum actions |
docker run -d \
--name=guide-aws \
--restart=always \
-e DYNAMODB_TABLE=$DYNAMODB_TABLE \
-e NODE_TYPE=$NODE_TYPE \
-e REGION=$AWS_REGION \
-e VPC_ID=$VPC_ID \
-e SWARM_QUEUE="$SWARM_QUEUE" \
-e CLEANUP_QUEUE="$CLEANUP_QUEUE" \
-e RUN_VACUUM=$RUN_VACUUM \
-v /var/run/docker.sock:/var/run/docker.sock \
-v /usr/bin/docker:/usr/bin/docker \
pecigonzalo/docker-guide-aws
Content type
Image
Digest
Size
42.9 MB
Last updated
over 9 years ago
docker pull pecigonzalo/docker-guide-aws