# Kubernetes Intro ###### tags: `slides` - Local Google cloud setup - Tools --- #### Setup - Install google SDK: https://cloud.google.com/sdk/docs/install region -> (europe-west4-a) - Install kubectl: https://kubernetes.io/docs/tasks/tools/ --- - List available clusters in our account ``` gcloud container clusters list ``` - List our available contexts ``` kubectl config get-contexts ``` - Add one cluster to our available contexts ``` gcloud container clusters get-credentials acceptance ``` --- - Change context ``` kubectl config use-context acceptance ``` - List contexts ``` kubectl config get-contexts -o=name ``` - Tool to fancy navigate through contexts: https://github.com/ahmetb/kubectx#kubectl-plugins-macos-and-linux --- #### Namespace - List namespaces ``` kubectl get namespaces ``` - Change namespace ``` kubectl config set-context --current --namespace=equalture-8828728 ``` --- - Fancy namespaces navigation ``` kubens ``` ``` (I think it is installed with kubectx) ``` --- --- #### kube-ps1 Allows to easily know in which cluster and namespace you are ``` https://github.com/jonmosco/kube-ps1 ```  --- #### Basic steps ``` kubectl get pods ``` ``` kubectl get services ``` ``` kubectl get cronjobs ``` ---- #### Check logs ``` kubectl get pods ``` ``` kubectl logs <pod-name> ``` ``` kubectl logs -f <pod-name> ``` --- #### k9s ``` https://github.com/derailed/k9s ```  --- #### Check secrets - All secrets file for current ``` kubectl get secrets ``` - Applying base64 decoding ``` kubectl get secrets jerry-google-cloud-credentials -o json | jq '.data | map_values(@base64d)' ``` - Edit secrets: ``` kubectl edit secrets jerry-google-cloud-credentials ``` --- #### Cluster debugging ``` kubectl get events ``` --- # End