[ui] Pack metadata booleanified and added to the statuses endpoint (#23404)

* Pack metadata booleanified and added to the statuses endpoint

* Simplify job.IsPack declaration

.changelog/23404.txt

@@ -0,0 +1,3 @@
+```release-note:improvement
+ui: added a Pack badge to the jobs index page for jobs run via Nomad Pack
+```

nomad/job_endpoint_statuses.go

@@ -221,6 +221,8 @@ func jobStatusesJobFromJob(ws memdb.WatchSet, store *state.StateStore, job *stru
 		Status:           job.Status,
 	}
 
+	_, jsj.IsPack = job.Meta["pack.name"]
+
 	// the GroupCountSum will map to how many allocations we expect to run
 	// (for service jobs)
 	for _, tg := range job.TaskGroups {

nomad/structs/job.go

@@ -98,6 +98,7 @@ type JobStatusesJob struct {
 	ParentID         string
 	LatestDeployment *JobStatusesLatestDeployment
 	Stop             bool // has the job been manually stopped?
+	IsPack           bool // is pack metadata present?
 	Status           string
 }
 

ui/app/components/child-job-row.hbs

@@ -17,7 +17,7 @@
     >
       {{@job.name}}
 
-      {{#if @job.meta.structured.pack}}
+      {{#if @job.isPack}}
         <span data-test-pack-tag class="tag is-pack">
           {{x-icon "box" class= "test"}}
           <span>Pack</span>

ui/app/models/job.js

@@ -302,9 +302,7 @@ export default class Job extends Model {
   }
   @fragment('structured-attributes') meta;
 
-  get isPack() {
-    return !!this.meta?.structured?.pack;
-  }
+  @attr('boolean') isPack;
 
   /**
    * A task with a schedule block can have execution paused at specific cron-based times.

ui/app/routes/jobs/job.js

@@ -44,7 +44,6 @@ export default class JobRoute extends Route.extend(WithWatchers) {
         const relatedModelsQueries = [
           job.get('allocations'),
           job.get('evaluations'),
-          // this.store.query('job', { namespace, meta: true }), // TODO: I think I am probably nuking the ability to get meta:pack info here. See https://github.com/hashicorp/nomad/pull/14833
           this.store.findAll('namespace'),
         ];
 

ui/app/templates/jobs/index.hbs

@@ -157,8 +157,7 @@
               class="is-primary"
             >
               {{B.data.name}}
-              {{!-- TODO: going to lose .meta with statuses endpoint! --}}
-              {{#if B.data.meta.structured.pack}}
+              {{#if B.data.isPack}}
                 <span data-test-pack-tag class="tag is-pack">
                   {{x-icon "box" class= "test"}}
                   <span>Pack</span>