feat: Created k8s-relogin for Azure

This includes a semi breaking-change as the script for the tanzu flavour now is also called "k8s-relogin" instead of "relogin"

closes #33

README.md

@@ -392,6 +392,7 @@ For example: myresourcegroup:myk8s,myotherresourcegroup@othersubscription:myseco
 the myresourcegroup resource group and mysecondk8s from the resource group myotherresourcegroup in the
 subscription othersubscription.
 Prefix a cluster name with an ! to load the admin-credentials for that cluster instead of the user credentials.
+This generates the script `k8s-relogin` which allows you to recreate the Kubernetes credentials.
 
 * (azure flavour) Environment AZ_K8S_INSTALL_OPTIONS: Additional options for the az aks install-cli programm.
 (Defaults to empty)
@@ -423,7 +424,9 @@ seems to fail.
 * Environment TANZU_CLUSTERS: A comma separated list of namespace:cluster name pairs
 * Environment TANZU_ADD_CONTROL_CLUSTER: Whether to also authenticate against the control cluster [false]
 * Environment TANZU_SKIP_TLS_VERIFY: Skip TLS verification [false]
-* Environment TANZU_VSPHERE_PLUGIN_PATH: The path where to find the kubectl vsphere plugin [/wcp/plugin/linux-amd64/vsphere-plugin.zip] 
+* Environment TANZU_VSPHERE_PLUGIN_PATH: The path where to find the kubectl vsphere plugin [/wcp/plugin/linux-amd64/vsphere-plugin.zip]
+
+This generates the script `k8s-relogin` which allows you to recreate the Kubernetes credentials.
 
 
 ### packages

feature/kubernetes/feature.yaml

@@ -10,6 +10,7 @@ configuration:
         the myresourcegroup resource group and mysecondk8s from the resource group myotherresourcegroup in the
         subscription othersubscription.
         Prefix a cluster name with an ! to load the admin-credentials for that cluster instead of the user credentials.
+        This generates the script `k8s-relogin` which allows you to recreate the Kubernetes credentials.
     - |
         (azure flavour) Environment AZ_K8S_INSTALL_OPTIONS: Additional options for the az aks install-cli programm.
         (Defaults to empty)
@@ -41,5 +42,7 @@ configuration:
         * Environment TANZU_CLUSTERS: A comma separated list of namespace:cluster name pairs
         * Environment TANZU_ADD_CONTROL_CLUSTER: Whether to also authenticate against the control cluster [false]
         * Environment TANZU_SKIP_TLS_VERIFY: Skip TLS verification [false]
-        * Environment TANZU_VSPHERE_PLUGIN_PATH: The path where to find the kubectl vsphere plugin [/wcp/plugin/linux-amd64/vsphere-plugin.zip] 
+        * Environment TANZU_VSPHERE_PLUGIN_PATH: The path where to find the kubectl vsphere plugin [/wcp/plugin/linux-amd64/vsphere-plugin.zip]
+        
+        This generates the script `k8s-relogin` which allows you to recreate the Kubernetes credentials.
         

feature/kubernetes/install.sh

@@ -1,6 +1,8 @@
 . /feature-installer-utils.sh
 
 if [ "X$(cat /home/cloudcontrol/flavour)X" == "XazureX" ]; then
+  echo "#!/bin/sh" > ~/bin/k8s-relogin
+
   for CLUSTER in $(echo "${AZ_K8S_CLUSTERS}" | tr "," "\n"); do
     K8S_RESOURCEGROUP=$(echo "$CLUSTER" | cut -d ":" -f 1)
     K8S_CLUSTER=$(echo "$CLUSTER" | cut -d ":" -f 2)
@@ -19,13 +21,17 @@ if [ "X$(cat /home/cloudcontrol/flavour)X" == "XazureX" ]; then
     if [ "X${K8S_CLUSTER:0:1}X" == "X!X" ]; then
       ADMIN_PARAMETER="--admin"
       K8S_CLUSTER="${K8S_CLUSTER:1}"
-      echo -n "as admin"
+      echo " as admin"
+    else
+      echo ""
     fi
 
-    echo
+    echo az aks get-credentials --overwrite-existing --resource-group "${K8S_RESOURCEGROUP}" --name "${K8S_CLUSTER}" ${ADMIN_PARAMETER} "${K8S_SUBSCRIPTION[@]}" >> ~/bin/k8s-relogin
 
     execHandle "Fetching k8s credentials for ${CLUSTER}" az aks get-credentials --resource-group "${K8S_RESOURCEGROUP}" --name "${K8S_CLUSTER}" ${ADMIN_PARAMETER} "${K8S_SUBSCRIPTION[@]}"
   done
+  chmod +x ~/bin/k8s-relogin
+
   IFS=' ' read -r -a install_options <<< "${AZ_K8S_INSTALL_OPTIONS:=""}"
 
   execHandle "Installing kubectl" sudo az aks install-cli "${install_options[@]}"
@@ -117,7 +123,7 @@ then
     cd - &>/dev/null || exit
     rm -rf "${TEMPDIR}"
 
-    echo "#!/bin/sh" > ~/bin/relogin
+    echo "#!/bin/sh" > ~/bin/k8s-relogin
 
     PATH=$PATH:/home/cloudcontrol/bin
 
@@ -131,15 +137,15 @@ then
     if [ "X${TANZU_ADD_CONTROL_CLUSTER:-no}X" == "XyesX" ]
     then
       execHandle "Authenticating against control cluster" kubectl vsphere login "${loginArgs[@]}"
-      echo kubectl vsphere login "${loginArgs[@]}" >> ~/bin/relogin
+      echo kubectl vsphere login "${loginArgs[@]}" >> ~/bin/k8s-relogin
     fi
 
     for NAMESPACEDCLUSTER in $(echo "${TANZU_CLUSTERS}" | tr "," "\n")
     do
       NAMESPACE=$(echo "$NAMESPACEDCLUSTER" | cut -d ":" -f 1)
       CLUSTER=$(echo "$NAMESPACEDCLUSTER" | cut -d ":" -f 2)
       execHandle "Authenticating against cluster ${CLUSTER} in namespace ${NAMESPACE}" kubectl vsphere login "${loginArgs[@]}" --tanzu-kubernetes-cluster-namespace="${NAMESPACE}" --tanzu-kubernetes-cluster-name="${CLUSTER}"
-      echo kubectl vsphere login "${loginArgs[@]}" --tanzu-kubernetes-cluster-namespace="${NAMESPACE}" --tanzu-kubernetes-cluster-name="${CLUSTER}" >> ~/bin/relogin
+      echo kubectl vsphere login "${loginArgs[@]}" --tanzu-kubernetes-cluster-namespace="${NAMESPACE}" --tanzu-kubernetes-cluster-name="${CLUSTER}" >> ~/bin/k8s-relogin
     done
-    chmod +x ~/bin/relogin
+    chmod +x ~/bin/k8s-relogin
 fi