- Core DNS is deployment and Flannel is DaemonSet
- Persistent Volume (PV) is not under the namespace
- Persistent Volume Claim(PVC) is under the namespace
- Delete PVC will delete PV automatically by default (Oracle Kubernetes Engine). Change retain policy if necessary
- Drain the node before rebooting worker node
- Both TCP and UDP must be open in the worker node subnet.
- If UDP is open after VMs are up and running, we may need to recreate VMs to let docker daemon to work with new settings
Sunday, May 17, 2020
A few simple Tips on Kubernetes
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