Visual diff tests seed-stabilized by default (#12965)

* Seed-stabilization by default

* Hide right-column of topology viz route

* Remove seedless run from thee test:* suite

* Related evals paths render too late

* Vis:Hidden another topo viz unstable item

ui/.percy.yml

@@ -2,6 +2,11 @@ version: 1
 snapshot:
   # Hide high-variability data from Percy snapshots; helps make sure that randomized data doesn't cause a visual diff.
   percy-css: | 
-    table td { 
+    .topo-viz { 
+      display: none;
+    }
+    .related-evaluations path,
+    .related-evaluations circle
+    .dashboard-metric {
       visibility: hidden;
     }

ui/config/environment.js

@@ -6,6 +6,12 @@ if (process.env.USE_MIRAGE) {
   USE_MIRAGE = process.env.USE_MIRAGE == 'true';
 }
 
+let USE_PERCY = true;
+
+if (process.env.USE_PERCY) {
+  USE_PERCY = process.env.USE_PERCY == 'true';
+}
+
 module.exports = function (environment) {
   let ENV = {
     modulePrefix: 'nomad-ui',
@@ -31,6 +37,10 @@ module.exports = function (environment) {
       mirageWithRegions: true,
       showStorybookLink: process.env.STORYBOOK_LINK === 'true',
     },
+
+    percy: {
+      enabled: USE_PERCY,
+    },
   };
 
   if (environment === 'development') {

ui/mirage/faker.js

@@ -3,7 +3,11 @@ import config from 'nomad-ui/config/environment';
 
 const searchIncludesSeed = window.location.search.includes('faker-seed');
 
-if (config.environment !== 'test' || searchIncludesSeed) {
+if (
+  config.environment !== 'test' ||
+  config.percy.enabled ||
+  searchIncludesSeed
+) {
   if (searchIncludesSeed) {
     const params = new URLSearchParams(window.location.search);
     const seed = parseInt(params.get('faker-seed'));

ui/package.json

@@ -22,7 +22,8 @@
     "test": "npm-run-all lint test:*",
     "test:ember": "percy exec -- ember test",
     "local:qunitdom": "ember test --server --query=dockcontainer",
-    "local:exam": "ember exam --server --load-balance --parallel=4"
+    "local:exam": "ember exam --server --load-balance --parallel=4",
+    "seedless-test": "USE_PERCY=false ember test"
   },
   "husky": {
     "hooks": {