updated .envrc

.envrc

@@ -79,14 +79,20 @@ kube_context(){
         export KUBECONFIG="$tmpdir/config.${EUID:-${UID:-$(id -u)}}.$$.$epoch"
 
         # load your real kube config to isolated staging area to source the context info
+        local src_kubeconfig
         if [ -f "$original_kubeconfig" ]; then
-            cp -- "$original_kubeconfig" "$KUBECONFIG"
+            src_kubeconfig="$original_kubeconfig"
         elif [ -f "$default_kubeconfig" ]; then
-            cp -- "$default_kubeconfig" "$KUBECONFIG"
+            src_kubeconfig="$default_kubeconfig"
         elif [ -f "$PWD/.kube/config" ]; then
-            cp -- "$PWD/.kube/config" "$KUBECONFIG"
+            src_kubeconfig="$PWD/.kube/config"
         elif [ -f "/etc/rancher/k3s/k3s.yaml" ]; then
-            cp -- "/etc/rancher/k3s/k3s.yaml" "$KUBECONFIG"
+            src_kubeconfig="/etc/rancher/k3s/k3s.yaml"
+        fi
+        if [ -n "$src_kubeconfig" ]; then
+            if [ "$src_kubeconfig" != "$KUBECONFIG" ]; then
+                cp -f -- "$src_kubeconfig" "$KUBECONFIG"
+            fi
         else
             echo "WARNING: failed to find one of:
 
@@ -99,7 +105,8 @@ kube_context(){
 
         # race condition - kubectl config get-contexts fails to find the context and switch in many runs without this sleep
         context_found=0
-        for ((i=0;i<10;i++)); do
+        local i
+        for ((i=0; i < 10; i++)); do
             # surprisingly unreliable - if kubectl config get-contexts -o name | grep -Fxq "$context" can miss even after these succeed
             #if [ -s "$KUBECONFIG" ]; then
             #if cmp --quiet "$from_kubeconfig" "$KUBECONFIG"; then
@@ -124,6 +131,11 @@ kube_context(){
 
 gke_kube_context(){
     local CONTEXT
+    for _ in CLOUDSDK_CORE_PROJECT CLOUDSDK_COMPUTE_REGION CLOUDSDK_CONTAINER_CLUSTER; do
+        if [ -z "${!_}" ]; then
+            echo "WARNING: \$$_ is not set" >&2
+        fi
+    done
     # if CLOUDSDK_CONTAINER_CLUSTER and it's generated as a naming convention such as "${CLOUDSDK_CORE_PROJECT}-${CLOUDSDK_COMPUTE_REGION}"
     #export CLOUDSDK_CONTAINER_CLUSTER="${CLOUDSDK_CONTAINER_CLUSTER:-${CLOUDSDK_CORE_PROJECT}-${CLOUDSDK_COMPUTE_REGION}}"