fix(helm): omit empty env and envFrom in hub deployment

Wrap env and envFrom in with blocks so they aren't rendered as null keys
when unset, document both values with examples, and bump chart to 0.1.9.

supplemental/helm/beszel-hub/Chart.yaml

@@ -4,7 +4,7 @@ home: https://github.com/henrygd/beszel/tree/main/supplemental/helm/beszel-hub
 name: beszel-hub
 appVersion: "0.21.0"
 # Bump this version when publishing chart changes.
-version: 0.1.8
+version: 0.1.9
 sources:
   - https://github.com/henrygd/beszel/tree/main/supplemental/helm/beszel-hub
   - https://www.beszel.dev/

supplemental/helm/beszel-hub/templates/deployment.yaml

@@ -50,15 +50,17 @@ spec:
             - name: http
               containerPort: {{ .Values.service.port }}
               protocol: TCP
+          {{- with .Values.envFrom }}
           envFrom:
-            {{- with .Values.envFrom }}
             {{- toYaml . | nindent 12 }}
-            {{- end }}
+          {{- end }}
+          {{- with .Values.env }}
           env:
-            {{- range $key, $value := .Values.env }}
+            {{- range $key, $value := . }}
             - name: {{ $key }}
               value: {{ $value | quote }}
             {{- end }}
+          {{- end }}
           {{- with .Values.livenessProbe }}
           livenessProbe:
             {{- toYaml . | nindent 12 }}

supplemental/helm/beszel-hub/values.yaml

@@ -116,9 +116,17 @@ autoscaling:
 
 # volumeMounts: {}
 
+# -- Environment variables for the hub container
 env: {}
+  # APP_URL: https://beszel.example.com
+  # DISABLE_PASSWORD_AUTH: "true"
 
+# -- Load environment variables from Secrets or ConfigMaps
 envFrom: []
+  # - secretRef:
+  #     name: beszel-hub-env
+  # - configMapRef:
+  #     name: beszel-hub-config
 
 # -- `spec.PersitentVolumeClaim` configuration
 persistentVolumeClaim: