[public-api-server] Enable in preview environments

Author: easyCZ

.werft/jobs/build/installer/installer.ts

@@ -61,6 +61,7 @@ export class Installer {
             this.configureObservability(slice)
             this.configureAuthProviders(slice)
             this.configureSSHGateway(slice)
+            this.configurePublicAPIServer(slice)
 
             if (this.options.analytics) {
                 this.includeAnalytics(slice)
@@ -143,6 +144,10 @@ export class Installer {
         exec(`yq w -i ${this.options.installerConfigPath} sshGatewayHostKey.name "host-key"`)
     }
 
+    private configurePublicAPIServer(slice: string) {
+        exec(`yq w -i ${this.options.installerConfigPath} experimental.webapp.publicApi.enabled true`, { slice: slice })
+    }
+
     private includeAnalytics(slice: string): void {
         exec(`yq w -i ${this.options.installerConfigPath} analytics.writer segment`, { slice: slice });
         exec(`yq w -i ${this.options.installerConfigPath} analytics.segmentKey ${this.options.analytics.token}`, { slice: slice });