What to monitor?
It's best to monitor the following components:
- Mongo - following mongo best practices
- RabbitMQ = following RabbitMQ best practices
- Docker service - on all hosts
- Docker api-manager container - check that the api-manager container is running
- Docker api-manager - a API endpoint for monitoring the status is available at
/api/status
, consult the api docs for more info - Docker api-worker container - check that the api-manager container is running on all worker nodes
- (Optional) routing layers - changes depanding on your design
- App containers - check that the app containers are running on your worker nodes
- End2End network connections - if your app accepts HTTP\TCP\UDP requests best to check e2e connectivity as well