Avoid confusion by exiting if the release is not found (#5)

* avoid confusion by exiting if the release is not found

* bump version

* suppress grep output

README.md

@@ -4,8 +4,6 @@
 
 A Helm plugin to get debug information about the Kubernetes resources created by a release. The output is useful for troubleshooting in a CI / CD environment where it is valuable to capture the state of a release following a failure. The following information will be output to the output directory.
 
-For best results, it is recommended that your Helm chart specifies a metadata.namespace value for each resource (even if it just the chart default of `{{ .Release.Namespace }}`). The plugin uses the output of `helm get manifest` and `helm get hooks` to determine the resources available for log collection.
-
 * Environment variables
 * Helm release list
 * Helm user values
@@ -14,6 +12,8 @@ For best results, it is recommended that your Helm chart specifies a metadata.na
 * Kubernetes describe of each pod
 * Kubernetes logs for each container
 
+For best results, it is recommended that your Helm chart specifies a metadata.namespace value for each resource (even if it just the chart default of `{{ .Release.Namespace }}`). The plugin uses the output of `helm get manifest` and `helm get hooks` to determine the resources available for log collection.
+
 ## Requirements
 
 * Helm v3

plugin.yaml

@@ -1,5 +1,5 @@
 name: release-logs
-version: 0.4.0
+version: 0.5.0
 usage: Get debug info about resources created by a release.
 description: A Helm plugin to get debug information about the Kubernetes resources creaeted by a release.
 command: $HELM_PLUGIN_DIR/release-logs.sh

release-logs.sh

@@ -95,6 +95,12 @@ env | grep -v PASS | sort > "${dir}/env"
 echo "Saving Helm release list ..."
 ${helm} ls > "${dir}/releases.log" || true
 
+echo "Checking for Helm release ${release} ..."
+if ! ${helm} ls -q | grep -q "${release}"; then
+  echo "Release ${release} not found. This may mean the namespace is incorrect or the Helm install or upgrade failed."
+  exit 0
+fi
+
 echo "Saving Helm user values ..."
 ${helm} get values "${release}" > "${dir}/values-user.yaml" || true