For a project i'm working on we need to create a Jenkins node in an AWS environment. For this we will work with the docker image which is available on https://github.com/jenkinsci/docker-ssh-slave The Jenkins node will be responsible for executing AWS commands which can only be done from inside the AWS environment (Not outside).
This Jenkins Master is running in our local environment. We will add the node as a permanent node in the Jenkins master. The Jenkins master is not responsible for setting up the Jenkins Node, since it has no permissions to do this ( this is managed in AWS )
However we would like to monitor the Jenkins Slave inside AWS to see if it it still running succesfully. With other docker container we also expose a health check. If the health check fails, the docker container is treated as unhealthy and is restarted accordingly. Just like we do with the other docker containers, we would like to expose such an health port as well on the Jenkins Slave. If it is not responding anymore AWS will restart the docker container and we have a stable system.
We already explored the Nagios monitoring, but it looks like this is exposing the health in the master and not directly in the slave.
Is it available, or how can we add such functionallity? Could you guide us into the correct direction, plugins which needs to be installed, ...
- Can we open the default HTTP API of Jenkins in such a Jenkins slave (https://wiki.jenkins.io/display/JENKINS/Remote+access+API)
- Another approach could be that we add and start NGINX in docker and point the healthcheck to NGINX but this way we are not really checking the healt of the the Jenkins slave.