Make use of Gitlab::Kubernetes

- refactor Knative and Prometheus

2 files changed, 21 insertions, 2 deletions

diff --git a/lib/gitlab/kubernetes/helm/reset_command.rb b/lib/gitlab/kubernetes/helm/reset_command.rb
index 37e1d8573ab..a35ffa34c58 100644
--- a/lib/gitlab/kubernetes/helm/reset_command.rb
+++ b/lib/gitlab/kubernetes/helm/reset_command.rb
@@ -38,9 +38,9 @@ module Gitlab
         # Tracking this method to be removed here:
         # https://gitlab.com/gitlab-org/gitlab-ce/issues/52791#note_199374155
         def delete_tiller_replicaset
-          command = %w[kubectl delete replicaset -n gitlab-managed-apps -l name=tiller]
+          delete_args = %w[replicaset -n gitlab-managed-apps -l name=tiller]
 
-          command.shelljoin
+          Gitlab::Kubernetes::KubectlCmd.delete(*delete_args)
         end
 
         def reset_helm_command
diff --git a/lib/gitlab/kubernetes/kubectl_cmd.rb b/lib/gitlab/kubernetes/kubectl_cmd.rb
new file mode 100644
index 00000000000..981eb5681dc
--- /dev/null
+++ b/lib/gitlab/kubernetes/kubectl_cmd.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Kubernetes
+    module KubectlCmd
+      class << self
+        def delete(*args)
+          %w(kubectl delete).concat(args).shelljoin
+        end
+
+        def apply_file(filename, *args)
+          raise ArgumentError, "filename is not present" unless filename.present?
+
+          %w(kubectl apply -f).concat([filename], args).shelljoin
+        end
+      end
+    end
+  end
+end