Add API7 ADC integration to Helm chart for automatic gateway configuration

- Added ADC (API7 Declarative CLI) post-install job for automatic gateway setup
- Created ConfigMap with complete API7 routing and service configuration
- Integrated cert-manager for automatic TLS certificate management
- Added support for Kubernetes service discovery
- Implemented auto-publish feature for routes after deployment
- Added comprehensive API7 plugin configurations (rate limiting, CORS, auth)
- Created RBAC resources for ADC job to access cluster resources
- Secured admin credentials using Kubernetes secrets
- Updated values.yaml with extensive API7 configuration options
- Enhanced documentation with API7 setup and troubleshooting guides

helm/api7ee/templates/secret-api7.yaml

@@ -0,0 +1,14 @@
+{{- if .Values.api7.enabled }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "api7ee.fullname" . }}-api7-admin
+  labels:
+    {{- include "api7ee.labels" . | nindent 4 }}
+    app.kubernetes.io/component: api7
+type: Opaque
+stringData:
+  admin-key: {{ .Values.api7.gateway.adminKey | quote }}
+  admin-url: {{ .Values.api7.gateway.adminUrl | quote }}
+  gateway-group: {{ .Values.api7.gateway.group | default "default" | quote }}
+{{- end }}