I have multiple instances of Mongo db deployed inside my kubernetes cluster through helm packages. They are running as a service, in NodePort. How do I connect to those Mongo db instances through UI tools like MongoDB Compass and RoboMongo from outside the cluster? Any help is appreciated.
If it is not your production database you can expose it through a NodePort service:
# find mongo pod name
kubectl get pods
kubectl expose pod <<pod name>> --type=NodePort
# find new mongo service
kubectl get servicesLast command will output something like
mongodb-0 10.0.0.45 <nodes> 27017:32151/TCP 30sNow you can access your mongo instance with mongo <<node-ip>>:32151
You can use kubectl port-forward to connect to MongoDB from outside the cluster.
Run kubectl port-forward << name of a mongodb pod >> --namespace << mongodb namespace >> 27018:27018.
Now point your UI tool to localhost:27018 and kubectl will forward all connections to the pod inside the cluster.
Starting with Kubernetes 1.10+ you can also use this syntax to connect to a service (you don't have to find a pod name first):kubectl port-forward svc/<< mongodb service name >> 27018:27018 --namespace << mongodb namespace>>