Created backend URL as variable for v0.1.0

Author: kubin-kloud

Diff for: backstage-app/backstage101/app-config.yaml

@@ -13,7 +13,7 @@ backend:
   #   keys:
   #     - secret: ${BACKEND_SECRET}
   # baseUrl: http://localhost:80
-  baseUrl: https://adityasinghal26-devcontainer-name-8000.preview.app.github.dev
+  baseUrl: ${BACKEND_URL}
   listen:
     port: 7007
     # Uncomment the following host directive to bind to specific interfaces

Diff for: backstage-app/backstage101/examples/all-templates.yaml

@@ -6,4 +6,5 @@ metadata:
   namespace: {{ .Values.namespace }}
 type: Opaque
 stringData:
-  GITHUB_TOKEN: {{ .Values.secrets.ghToken }}
+  GITHUB_TOKEN: {{ .Values.secrets.ghToken }}
+  BACKEND_URL: {{ .Values.secrets.backendUrl }}

Diff for: backstage-app/backstage101/examples/remote-templates.yaml

@@ -23,3 +23,4 @@ secrets:
   backstage: 'backstage-secrets'
   postgres: 'postgres-secrets'
   ghToken: 'dummy'
+  backendUrl: 'https://adityasinghal26-devcontainer-name-8000.preview.app.github.dev'