Kubernetes / OpenLens setup

You can only do this with sufficient access rights - ask Innovations team or Bratislava IT department if connecting to k8s infrastructure is relevant to you.

Install Requirements

Install kubectl based brew install kubectl or based on you platform you can follow https://kubernetes.io/docs/tasks/tools/ (opens in a new tab)
Download and install vsphere tanzu plugin here (opens in a new tab), you need to be connected on cable or through VPN to magistrate network
- Windows - copy kubectl and kubectl-vsphere to c:/windows/system32 (needed admin rights) otherwise kubectl vsphere login commands will not work
Install kubeseal (opens in a new tab) brew install kubeseal (apt install kubeseal), a tool for generating secrets
Download and install Kubernetes OpenLens (opens in a new tab) brew install openlens, a GUI tool for easier management of cluster deployments
- Also note the extensions section (opens in a new tab) to add the Node/Pod menu extension.
If you prefer command line environments there is also a tool called k9s (opens in a new tab), which can serve as alternative to OpenLens.

Login

be connected on cable or through VPN to magistrate, where username is your email.
run kubectl login commands
- main login
  kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify -u {{username}}
  - to login through Windows you need to set password export KUBECTL_VSPHERE_PASSWORD={{password}}
- logins to clusters
  - kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-dev -u {{username}}
  - kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-staging -u {{username}}
  - kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-prod -u {{username}}
  - kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-master -u {{username}} (optional, you don't need this, its only master cluster)
open OpenLens and you should see clusters

Tips & Tricks

If you are running reasonable command line environment you can create aliases for these logins.

For *nix based command line environment you can add these to your ~/.bash_aliases or ~/.bashrc. For example:

# k8 login aliases
alias k8dev='kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-dev -u {{username}} && kubectl config use-context tkg-innov-dev'
 
alias k8stage='kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-staging -u {{username}} && kubectl config use-context tkg-innov-staging'
alias k8staging='k8stage'
 
alias k8prod='kubectl vsphere login --server=10.10.10.1 --insecure-skip-tls-verify --tanzu-kubernetes-cluster-name=tkg-innov-prod -u {{username}} && kubectl config use-context tkg-innov-prod'

These will also set a correct config context to use for our clusters. To apply changes re-log to your console or called (any relevant equivalent to) source ~/.bashrc. After this, you can log in just by running k8dev. Note, if you don't have $KUBECTL_VSPHERE_PASSWORD environment variable set it will ask you for your NT password.

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