kube-gcp-deployment-docker

Docker based kubernetes launch scripts based on http://github.com/norbertvannobelen/kube-gcp-deployment

Current version notes

This version contains a set of unused software due to the switch out of CRI-O with Docker. This switch out was done due to an incompatibility between CRI-O/runc and the GCE cloud provider settings: Network does not initialize:

• CNI step is skipped with CRI-O while the step is not skipped when using Docker
• And CNI step is required since GCE API server config seems to always want to control the network bridge, thus leading to duplicate/incorrect routes when controlling the network in a different fashion.

Usage notes

Installation script has been split in subscripts

• setupMaster.sh: source setupMaster.sh && installMasters
• setupWorker.sh: source setupWorker.sh && source setupParameters.sh && installWorkers
• autoSetupMultiCluster.sh: Utilizes VPC networks to create multiple isolated clusters source autoSetupMultiCluster.sh && source setupMaster.sh && source SetupWorkers.sh && findNetwork && installMasters && installWorkers

Cleaning up is improved:

• source resetWorkers.sh && removeSingleNode {nodename} removes a node with a drain of the node (drain might need adjustment based on the containers)
• source resetWorker.sh && resetWorkers : Removes all workers
• source resetMaster.sh && resetMasters : Removes all masters & cleans up network. Assumes that the workers are already removed.

TODO

Current script paves nodes from scratch. This is a bit slow:

• Add image creation step for worker;
• Initialize workers from above image instead.
• Add intelligent node scaler
• Add other k8s components like prometheus and fluentd
• Add multi cluster in single Google Cloud project setup