Add make cluster/kubeconfig

Signed-off-by: Connor Catlett <[email protected]>

Makefile

@@ -107,6 +107,10 @@ all-push: all-image-registry push-manifest
 cluster/create: bin/kops bin/eksctl bin/aws
 	./hack/e2e/create-cluster.sh
 
+.PHONY: cluster/kubeconfig
+cluster/kubeconfig:
+	@./hack/e2e/kubeconfig.sh
+
 .PHONY: cluster/delete
 cluster/delete: bin/kops bin/eksctl
 	./hack/e2e/delete-cluster.sh

docs/makefile.md

@@ -153,6 +153,23 @@ export CLUSTER_TYPE="eksctl"
 make cluster/create
 ```
 
+### `make cluster/kubeconfig`
+
+Prints the `KUBECONFIG` environment variable for a cluster. You must pass the same `CLUSTER_TYPE` and `CLUSTER_NAME` as used when creating the cluster. This command must be `eval`ed to import the environment variables into your shell.
+
+#### Example: Export the `KUBECONFIG` for a default cluster
+
+```bash
+eval "$(make cluster/kubeconfig)"
+```
+
+#### Example: Export the `KUBECONFIG` for an `eksctl` cluster
+
+```bash
+export CLUSTER_TYPE="eksctl"
+eval "$(make cluster/kubeconfig)"
+```
+
 ### `make cluster/delete`
 
 Deletes a cluster created by `make cluster/create`. You must pass the same `CLUSTER_TYPE` and `CLUSTER_NAME` as used when creating the cluster.

hack/e2e/kubeconfig.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Copyright 2023 The Kubernetes Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This script echos the KUBECONFIG back to the caller
+# CLUSTER_NAME and CLUSTER_TYPE are expected to be specified by the caller
+
+set -euo pipefail
+
+BASE_DIR="$(dirname "$(realpath "${BASH_SOURCE[0]}")")"
+KUBECONFIG="${BASE_DIR}/csi-test-artifacts/${CLUSTER_NAME}.${CLUSTER_TYPE}.kubeconfig"
+
+echo "# Makefiles cannot export environment variables directly"
+echo "# Run eval \"\$(make cluster/kubeconfig)\""
+echo "export KUBECONFIG=\"${KUBECONFIG}\""