Very basic installation works again

dashboard/src/models/AppsModel.js

@@ -84,6 +84,36 @@ function create(origin, accessToken, id) {
   return {
     name: 'AppsModel',
     getTask,
+    async install(manifest, config) {
+      const data = {
+        appStoreId: manifest.id + '@' + manifest.version,
+        subdomain: config.subdomain,
+        domain: config.domain,
+        secondaryDomains: config.secondaryDomains,
+        ports: config.ports,
+        accessRestriction: config.accessRestriction,
+        cert: config.cert,
+        key: config.key,
+        sso: config.sso,
+        overwriteDns: config.overwriteDns,
+        upstreamUri: config.upstreamUri,
+        backupId: config.backupId // when restoring from archive
+      };
+
+      let error, result;
+      try {
+        result = await fetcher.post(`${origin}/api/v1/apps`, data, { access_token: accessToken });
+      } catch (e) {
+        error = e;
+      }
+
+      if (error || result.status !== 202) {
+        console.error('Failed to install app.', error || result.status);
+        return error || result.body;
+      }
+
+      return '';
+    },
     async list() {
       let error, result;
       try {