2021-01-26 14:04:47 +00:00
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# Upgrade to KubeZero V2.18.0 (Argoless)
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2020-11-26 17:37:10 +00:00
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2020-12-01 15:56:22 +00:00
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## (optional) Upgrade control plane nodes / worker nodes
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- Set kube version in the controller config to eg. `1.18`
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- Update kube-controller and worker stacks with latest CFN code
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- terminate controller node(s)
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- once all controller nodes successfully upgraded replace worker nodes in a rolling fashion via. drain / terminate / rinse-repeat
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## ArgoCD
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- disable all auto-sync and "prune" features to prevent that eg. namespaces from previous apps get removed
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2020-12-01 15:46:04 +00:00
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- either remove auto-sync from old values.yaml and run deploy one last time, trigger kubezero sync !
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- or disable manual via Argo UI starting with Kubezero app itself
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2020-11-26 17:37:10 +00:00
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2020-12-01 15:56:22 +00:00
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- uninstall argo helm chart:
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`helm uninstall kubezero -n argocd`
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- remove all "argocd.argoproj.io/instance" labels from namespaces to prevent namespace removal later on:
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`./scripts/remove_argo_ns.sh`
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2020-11-26 17:37:10 +00:00
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2020-12-01 15:56:22 +00:00
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## KubeZero - Part 1
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2020-11-30 17:30:06 +00:00
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- migrate values.yaml to new structure, adapt as needed
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2020-12-01 15:46:04 +00:00
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& update new central kubezero location in git and merge cluster configs
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2020-11-26 17:37:10 +00:00
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2020-12-01 15:56:22 +00:00
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- upgrade all CRDs:
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2020-12-01 15:46:04 +00:00
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`./bootstrap.sh crds all clusters/$CLUSTER ../../../kubezero/charts`
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2020-12-01 15:56:22 +00:00
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- upgrade first components:
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2020-12-01 15:46:04 +00:00
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`./bootstrap.sh deploy calico,cert-manager,kiam,aws-ebs-csi-driver,aws-efs-csi-driver clusters/$CLUSTER ../../../kubezero/charts`
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2020-12-01 16:27:06 +00:00
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## Istio
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Due to changes of the ingress namespace resource the upgrade will cause a brief (~3-5 min) ingress service interruption !
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2020-12-01 15:56:22 +00:00
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2020-12-01 15:46:04 +00:00
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- delete istio operators, to remove all pieces, remove operator itself
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`./scripts/delete_istio_17.sh`
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- deploy istio and istio-ingress via bootstrap.sh
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2020-12-01 16:08:32 +00:00
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`./bootstrap.sh deploy istio,istio-ingress clusters/$CLUSTER ../../../kubezero/charts`
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2020-12-01 15:46:04 +00:00
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- patch all VirtualServices via script to new namespace
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`./scripts/patch_vs.sh`
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2020-12-01 16:27:06 +00:00
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Ingress service interruption ends.
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2020-12-01 15:56:22 +00:00
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## KubeZero - Part 2
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- push kubezero & cluster config to git
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2020-12-04 14:10:15 +00:00
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- if logging incl. ElasticSearch is installed remove the old ECK operator first:
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`./scripts/remove_old_eck.sh`
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2020-12-01 15:56:22 +00:00
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- upgrade all remaining components and install new ArgoCD:
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2020-12-01 15:46:04 +00:00
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`./bootstrap.sh deploy all clusters/$CLUSTER ../../../kubezero/charts`
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2020-12-01 15:56:22 +00:00
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## Verification / Tests
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2020-12-01 15:46:04 +00:00
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- verify argocd incl. kubezero app
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2020-12-01 15:56:22 +00:00
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- verify all argo apps status
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2020-12-01 15:46:04 +00:00
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- verify all the things
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