Add edge case check

.github/workflows/test_edge_case.yml

@@ -0,0 +1,59 @@
+name: "units-test-edge"
+on:
+  # works for mannual, in case of github agent updated.
+  # we can run mannually to see if it can be fixed by update version of
+  # - kubectl
+  # - k8s cluster provider's
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+      - 'releases/*'
+
+jobs:
+  # folder exists should not blocking process
+  test_local_cluster_withEdgeCase_folder_exists:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: start from local
+      run: |
+        mkdir -p /tmp/kubeconfig
+        export CLUSTER_PROVIDER=kind
+        export CLUSTER_CONFIG=false
+        ./main.sh up
+    - name: test as kepler action behavior
+      run: |
+        mkdir -p /tmp/kubeconfig
+        cp .kube/config /tmp/kubeconfig
+        export PROMETHEUS_ENABLE=true
+        export TEKTON_ENABLE=true
+        export KUBECONFIG_ROOT_DIR=/tmp/kubeconfig
+        ./main.sh config
+    - name: verify cluster
+      run: |
+        ./verify.sh verify_cluster
+
+  test_local_cluster_withEdgeCase_file_exists:
+  # file exists should not blocking process
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: start from local
+      run: |
+        echo 1 > /tmp/kubeconfig
+        export CLUSTER_PROVIDER=kind
+        export CLUSTER_CONFIG=false
+        ./main.sh up
+    - name: test as kepler action behavior
+      run: |
+        mkdir -p /tmp/kubeconfig
+        cp .kube/config /tmp/kubeconfig
+        export PROMETHEUS_ENABLE=true
+        export TEKTON_ENABLE=true
+        export KUBECONFIG_ROOT_DIR=/tmp/kubeconfig
+        ./main.sh config
+    - name: verify cluster
+      run: |
+        ./verify.sh verify_cluster

main.sh

@@ -90,6 +90,11 @@ cluster_up() {
 	local kubeconfig
 	kubeconfig="$("${CLUSTER_PROVIDER}"_kubeconfig)"
 
+	if [ -e "$KUBECONFIG_ROOT_DIR" ]; then   
+		info "there $KUBECONFIG_ROOT_DIR moving to bak file"
+		mv "$KUBECONFIG_ROOT_DIR" "$KUBECONFIG_ROOT_DIR"_bak
+	fi
+
 	mkdir -p "$(basename "$KUBECONFIG_ROOT_DIR")"
 	mv -f "$kubeconfig" "${KUBECONFIG_ROOT_DIR}/${KEPLER_KUBECONFIG}"
 

providers/kind/kind.sh

@@ -136,6 +136,7 @@ kind_up() {
 	kind_wait_up
 	_run_kind_registry
 	ok "kind cluster $KIND_CLUSTER_NAME is up and running"
+	kind_print_config
 }
 
 kind_down() {