Now lots of apps are still running on K8s clusters version v1.14, v1.15, while oam-k8s-runtime requires the minimum K8s version to be v1.16.
Currently, the main block is OAM runtime use CRD v1, while these old K8s versions don't support CRD v1. So we generate v1beta1 CRD here for convenience. But we have no guarantee that oam-runtime will support the legacy k8s versions.
Follow the instructions in README to create a namespace like oam-system and add the OAM Kubernetes
Runtime helm repo.
$ kubectl create namespace oam-system
$ helm repo add crossplane-master https://charts.crossplane.io/master/
Run the following command to install an OAM Kubernetes Runtime legacy chart.
$ helm install oam --namespace oam-system crossplane-master/oam-kubernetes-runtime-legacy --devel
If you'd like to install an older version of the legacy chart, use helm search to choose a proper chart version.
$ helm search repo oam-kubernetes-runtime-legacy --devel -l
NAME CHART VERSION APP VERSION DESCRIPTION
crossplane-master/oam-kubernetes-runtime-legacy 0.3...... 0.3...... A Helm chart for OAM Kubernetes Resources Contr
crossplane-master/oam-kubernetes-runtime-legacy 0.3.1-5.g11e1894 0.3.1-5.g11e1894 A Helm chart for OAM Kubernetes Resources Contr
crossplane-master/oam-kubernetes-runtime-legacy 0.3...... 0.3...... A Helm chart for OAM Kubernetes Resources Contr
$ helm install oam --namespace oam-system crossplane-master/oam-kubernetes-runtime-legacy --version 0.3.1-5.g11e1894 --devel
Install the legacy chart as below if you want a nightly version.
$ helm install oam --namespace oam-system crossplane-master/oam-kubernetes-runtime-legacy --set image.tag=master --devel