51 lines
2.2 KiB
Markdown
51 lines
2.2 KiB
Markdown
# Upgrade to KubeZero V2.19.0
|
|
|
|
# CloudBender / Kubernetes v1.19
|
|
## Changes
|
|
- worker nodes names are now the default AWS private hostnames, rather than the CloudBender provided unique static hostnames :-(
|
|
This change was required to enable node restrictions via the upstream aws-iam-authenticator as well as prepare for support of the Horizontal Autoscaler and Spot Instances in the next releases
|
|
- cluster-admin kubectl config now stored on SSM Parameter store, contains no more secrets leveraging IAM roles
|
|
- fully encrypted cluster backup on S3
|
|
( automated migration and cleanup of previous files )
|
|
- backup password and cluster version stored on SSM Parameter store
|
|
- worker nodes authenticate via IAM roles rather than tokens
|
|
- improved resource reservations on all nodes
|
|
- various security / reliability improvements and bug fixes
|
|
|
|
## Upgrade
|
|
- Set Kubernetes version in the controller config to eg. `1.19`
|
|
- Update controller and worker stacks with latest CFN code
|
|
|
|
- terminate controller00 first, afterwards remaining controllers
|
|
- replace worker nodes in a rolling fashion via. drain / terminate / rinse-repeat
|
|
|
|
# KubeZero
|
|
## Changes
|
|
- Version bump to latest releases of *EVERY* component
|
|
- optional support for fuse-device-plugin
|
|
- KubeZero now supports bare-metal, all AWS components optional
|
|
- resource definitions for most admin pods, incl. apiserver, etcd, etc.
|
|
- Logging:
|
|
- ES resources are now defined using standard config vs. custom settings like jvm_heap and cpu_request
|
|
- Optional ability to add nodeAffinity rules for ES/Kibana and Fluentd
|
|
- Fluentd replicaCount default from 2 to 1
|
|
|
|
## Upgrade - Without ArgoCD
|
|
### CRDs:
|
|
( commands assume latest kubezero repository being checkout next to this git repository to deploy master / non-released version )
|
|
|
|
`./bootstrap.sh crds all clusters/$CLUSTER ../../../kubezero/charts`
|
|
|
|
### Components
|
|
`./bootstrap.sh deploy all clusters/$CLUSTER ../../../kubezero/charts`
|
|
|
|
## Upgrade - ArgoCD
|
|
- push latest config to git repo
|
|
- verify correct branch etc. ( argoless branch is retired ! )
|
|
- trigger sync in ArgoCD starting with the KubeZero root app
|
|
( only if auto-sync is not enabled )
|
|
|
|
## Verification / Tests
|
|
- check if all pods are RUNNING
|
|
- check any Ingress services
|
|
- ... |