Add nodeset alternatives

This feature instructs Zuul to attempt a second or more node request
with a different node configuration (ie, possibly different labels)
if the first one fails.

It is intended to address the case where a cloud provider is unable
to supply specialized high-performance nodes, and the user would like
the job to proceed anyway on lower-performance nodes.

Change-Id: Idede4244eaa3b21a34c20099214fda6ecdc992df

1 files changed, 11 insertions, 2 deletions

diff --git a/web/src/containers/job/JobVariant.jsx b/web/src/containers/job/JobVariant.jsx
index bec2276ef..9621cf333 100644
--- a/web/src/containers/job/JobVariant.jsx
+++ b/web/src/containers/job/JobVariant.jsx
@@ -107,7 +107,8 @@ class JobVariant extends React.Component {
     const jobInfos = [
       'source_context', 'builds', 'status',
       'parent', 'attempts', 'timeout', 'semaphores',
-      'nodeset', 'variables', 'override_checkout',
+      'nodeset', 'nodeset_alternatives', 'variables',
+      'override_checkout',
     ]
     jobInfos.forEach(key => {
       let label = key
@@ -173,7 +174,15 @@ class JobVariant extends React.Component {
         )
         nice_label = (<span><ClusterIcon /> Required nodes</span>)
       }
-
+      if (label === 'nodeset_alternatives') {
+        value = value.map((alt, idx) => {
+          return (<>
+                    {(idx > 0 ? <span>or</span>:<></>)}
+                    <Nodeset nodeset={alt} />
+                  </>)
+        })
+        nice_label = (<span><ClusterIcon /> Required nodes</span>)
+      }
       if (label === 'parent') {
         value = (
           <Link to={tenant.linkPrefix + '/job/' + value}>