add comment to denote substr purpose

grafana · Nov 15, 2023 · 8190380 · 8190380
1 parent f3c6066
commit 8190380
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/operations/helm/charts/grafana-agent/templates/_helpers.tpl b/operations/helm/charts/grafana-agent/templates/_helpers.tpl
@@ -55,6 +55,8 @@ helm.sh/chart: {{ include "grafana-agent.chart" . }}
 app.kubernetes.io/version: "vX.Y.Z"
 app.kubernetes.io/managed-by: {{ .Release.Service }}
 {{- else }}
+{{/* substr trims delimeter prefix char from grafana-agent.imageId output 
+    e.g. ':' for tags and '@' for digests. */}}
 app.kubernetes.io/version: {{ substr 1 -1 (include "grafana-agent.imageId" .) }}
 app.kubernetes.io/managed-by: {{ .Release.Service }}
 {{- end }}