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infraly / k8s-on-openstack

An opinionated way to deploy a Kubernetes cluster on top of an OpenStack cloud.
Apache License 2.0
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Update to Ubuntu 18.04 and Kubernetes 1.15.2 #50

Closed pfisterer closed 5 years ago

pfisterer commented 5 years ago

Dear infraly team, I've spent some time working on updating this Ansible playbook to use Ubuntu 18.04 and Kubernetes 1.15.2. As far as I can tell, everything works by now and I've successfully deployed Hadoop and Binderhub after running this playbook.

I hope you find these (batch full of) changes sensible as a starting point for improvements.

Best, Dennis

Original text from the first PR:

Dear infraly team, Here is my take on https://github.com/infraly/k8s-on-openstack/issues/49. This basically solves the issue that services of Type: LoadBalancerare not reachable from outside the cluster. Only after allowing ingress traffic in the sg-k8s-nodes security group, everything works as expected.

However, this still does not resolve the issue that inter-pod communication does not work as expected (cf. https://github.com/infraly/k8s-on-openstack/issues/49#issuecomment-503456450).

ctrlaltdel commented 5 years ago

Thanks @pfisterer for the contribution, it was very welcome! I have successfully tested it in my environment.

We can now continue to work on master to clean these kubenet issues.

I read in a few places that kubenet was going to be deprecated but couldn't find how it was supposed to be replaced.

pfisterer commented 5 years ago

Thanks @ctrlaltdel for accepting this PR.

Regarding kubenet: as far as I know, kubenet is limited in terms of NetworkPolicies, etc. So, migrating to a CNI-based network (e.g., kube-router) might be interesting.