feat(chart): Streamlines some chart things (#313)

This adds a few changes to the chart and adds support for host labels

Signed-off-by: Taylor Thomas <[email protected]>

wasmcloud_host/chart/templates/NOTES.txt

@@ -1,4 +1,4 @@
-1. Get the application URL by running these commands:
+1. You can access the wasmCloud dashboard with the following steps:
 {{- if contains "NodePort" .Values.service.type }}
   export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ include "wasmcloud_host.fullname" . }})
   export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")

wasmcloud_host/chart/templates/deployment.yaml

@@ -127,9 +127,11 @@ spec:
                   name: {{ include "wasmcloud_host.fullname" . }}
                   key: registryPassword
             {{- end }}
+            {{- range $k, $v := .Values.wasmcloud.config.hostLabels }}
+            - name: HOST_{{ $k }}
+              value: {{ $v | quote }}
+            {{- end }}
           ports:
-            - name: host
-              containerPort: 8080
             - name: washboard
               containerPort: 4000
               protocol: TCP

wasmcloud_host/chart/values.yaml

@@ -29,6 +29,10 @@ wasmcloud:
     registry:
       username: ""
       password: ""
+    # A map of key value pairs to use as wasmCloud Host labels. These map to environment variable
+    # names, so the `.` character is not allowed
+    hostLabels:
+      kubernetes: "true"
   image:
     repository: wasmcloud/wasmcloud_host
     pullPolicy: IfNotPresent