kubezero/docs/Upgrade.md

Upgrade to KubeZero V2(Argoless)

• disable all auto-sync in argo !! ( remove auto-sync from old values.yaml and run deploy one last time ) or disable manual via Argo UI starting with Kubezero app itself

• uninstall argo helm chart helm uninstall kubezero -n argocd

• migrate values.yaml to new structure, adapt as needed

• update new central kubezero location in git and merge cluster configs

• Upgrade control plane nodes / worker nodes

• upgrade all crds

• upgrade calico,cert-manager,kiam,csi drivers

• Istio:

High level / Admin changes

• ArgoCD is now optional
• ArgoCD is NOT required nor used during initial cluster bootstrap
• the initial bootstrap script now uses the same config as ArgoCD later on
• the initial bootstrap is WAY faster and re-try safe

Individual changes

Cert-manager

• local issuer is now a cluster issuer
• all resources moved to cert-manager namespace

Kiam

• check certs and function due to cert-manager changes
• set priorty class

Logging

• ES/Kibana version bump, new ECK operator

ArgoCD

• version bump, new app of app architecure

Metrics

• version bumps
• all servicemonitor resources are now in the same namespaces as the apps
• check all metrics still work

Calico

• version bump

EBS

• version bump

Istio

• operator removed, deployment migrated to helm, cleanups
• version bump to 1.8
• no more policy by default
• all ingress in dedicated new namespace istio-ingress as well as dedicated helm chart
• set priorty class