Mistral: use endpoints section and lookups to set port

This PS moves mistral to use the endpoints section and lookups to
set the port it serves on.

Change-Id: I3cbe2d5359a616595c2145fd23d6be65fcc77b3f

mistral/templates/configmap-etc.yaml

@@ -61,6 +61,10 @@ limitations under the License.
 {{- tuple "oslo_messaging" "internal" "mistral" "amqp" . | include "helm-toolkit.endpoints.authenticated_endpoint_uri_lookup" | set .Values.conf.mistral.DEFAULT "transport_url" | quote | trunc 0 -}}
 {{- end -}}
 
+{{- if empty .Values.conf.mistral.api.port -}}
+{{- tuple "workflow" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" | set .Values.conf.mistral.api "port" | quote | trunc 0 -}}
+{{- end -}}
+
 ---
 apiVersion: v1
 kind: ConfigMap

mistral/templates/deployment-api.yaml

@@ -63,11 +63,11 @@ spec:
                   - /tmp/mistral-api.sh
                   - stop
           ports:
-            - name: {{ .Values.network.api.name }}
-              containerPort: {{ .Values.conf.mistral.api.port }}
+            - name: w-api
+              containerPort: {{ tuple "workflow" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
           readinessProbe:
             tcpSocket:
-              port: {{ .Values.conf.mistral.api.port }}
+              port: {{ tuple "workflow" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
           volumeMounts:
             - name: pod-etc-mistral
               mountPath: /etc/mistral

mistral/templates/service-api.yaml

@@ -24,7 +24,7 @@ metadata:
 spec:
   ports:
     - name: w-api
-      port: {{ .Values.conf.mistral.api.port }}
+      port: {{ tuple "workflow" "internal" "api" . | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
     {{ if .Values.network.api.node_port.enabled }}
       nodePort: {{ .Values.network.api.node_port.port }}
     {{ end }}

mistral/values.yaml

@@ -311,10 +311,12 @@ conf:
     DEFAULT:
       transport_url: null
     api:
-      port: 8989
+      #NOTE(portdirect): the bind port should not be defined, and is manipulated
+      # via the endpoints section.
+      port: null
       api_workers: 8
     coordination:
-      backend_url:
+      backend_url: null
     database:
       max_retries: -1
     keystone_authtoken: