Snow E2E tests

[jiayiwang7]

* are the new features introduced after Snow beta and should be prioritized. TestSnow* are the existing E2E tests that are written but haven't been ran with the latest code.

* BottleRocket

• * with stacked Etcd and DHCP
• * with stacked Etcd and static IPs
• * with unstacked Etcd and static IPs
• * with proxy
• * with registry mirror
• * with node labels and taints

Ubuntu

• * with stacked Etcd and DHCP
• * with stacked Etcd and static IPs
• * with unstacked Etcd and static IPs
• with proxy
  • TestSnowKubernetes121UbuntuProxyConfig
• with registry mirror
• with node labels and taints
  • TestSnowKubernetes123LabelsUbuntu
  • TestSnowKubernetes123TaintsUbuntu

(unstacked Etcd with DHCP is not supported)

Cluster Full Life Cycle (EKS-A Controller)

• * use GitOps creating/upgrading a workload cluster
• * use kubectl creating/upgrading a workload cluster

Other Features that are OS generic

• * air-gapped env (import images, create cluster with registry mirror)
• with AWS IAM
  • TestSnowKubernetes121UbuntuAWSIamAuth
  • TestSnowKubernetes122To123AWSIamAuthUpgrade
• with OIDC
  • TestSnowKubernetes121OIDC
• with multiple worker groups
  • TestSnowKubernetes123UbuntuRemoveWorkerNodeGroups

K8s Versions

• 1.21
  • TestSnowKubernetes121SimpleFlow
• 1.22
  • TestSnowKubernetes122SimpleFlow
• 1.23
  • TestSnowKubernetes123SimpleFlow
• 1.24

Cluster Management

• scale up/down nodes in cluster
• upgrade K8s version
• upgrade cluster with features (proxy, AWS IAM, GitOps, etc.)
• create a workload cluster through CLI
• delete a cluster