Type: timescaledb graceful failing due to missing official docker image

This also allows it not to fail when an image is manually provided

Signed-off-by: Itay Grudev <[email protected]>

charts/cluster/templates/_helpers.tpl

@@ -61,7 +61,9 @@ If a custom imageName is available, use it, otherwise use the defaults based on
         {{- "ghcr.io/cloudnative-pg/postgresql:15.2" -}}
     {{- else if eq .Values.type "postgis" -}}
         {{- "ghcr.io/cloudnative-pg/postgis:14" -}}
+    {{- else if eq .Values.type "timescaledb" -}}
+        {{ fail "You need to provide your own cluster.imageName as an official timescaledb image doesn't exist yet." }}
     {{- else -}}
         {{ fail "Invalid cluster type!" }}
     {{- end }}
-{{- end -}}
+{{- end -}}