Making sure service-account-private-key-file arg is available in kube…

…-controller-manager (#25)

snap/kube-controller-manager.yaml

@@ -33,4 +33,21 @@ parts:
       cp $KUBE_SNAP_ROOT/kube-controller-manager/kube-controller-manager-wrapper .
       $KUBE_SNAP_ROOT/shared/generate-configure-hook kube-controller-manager
 
-      snapcraftctl build
+      # By mistake --service-account-private-key-file was marked as deprecated
+      # https://github.com/kubernetes/kubernetes/pull/62722
+      # Should be fixed soon by https://github.com/kubernetes/kubernetes/pull/60270/files#diff-fc9db90cc6b68d7c3ca838a8512447e9R61
+      # But until then, we need to do 1.11 testing
+      ensure_arg() {
+        type="$1"
+        config="$2"
+        if ! grep "^config-arg.* $config\$" meta/hooks/configure > /dev/null; then
+          if [ "$type" = "bool" ]; then
+            echo "config-arg-bool $config" >> meta/hooks/configure
+          else
+            echo "config-arg $config" >> meta/hooks/configure
+          fi
+        fi
+      }
+      ensure_arg string service-account-private-key-file
+
+      snapcraftctl build