Add PodAntiAffinity based on host/node to Semeru compiler (#566)

* Add affinity based on host to semeru compiler

Signed-off-by: Leo Christy Jesuraj <[email protected]>

* Use the instance name in the affinity for Semeru

Signed-off-by: Leo Christy Jesuraj <[email protected]>

* Use the instance label on semeru affinity

Signed-off-by: Leo Christy Jesuraj <[email protected]>

---------

Signed-off-by: Leo Christy Jesuraj <[email protected]>

Author: leochr

controllers/semeru_compiler.go

@@ -313,7 +313,18 @@ func (r *ReconcileWebSphereLiberty) reconcileSemeruDeployment(wlva *wlv1.WebSphe
 								TopologyKey: "topology.kubernetes.io/zone",
 								LabelSelector: &metav1.LabelSelector{
 									MatchLabels: map[string]string{
-										"app.kubernetes.io/name": getSemeruCompilerName(wlva),
+										"app.kubernetes.io/instance": getSemeruCompilerNameWithGeneration(wlva),
+									},
+								},
+							},
+						},
+						{
+							Weight: 50,
+							PodAffinityTerm: corev1.PodAffinityTerm{
+								TopologyKey: "kubernetes.io/hostname",
+								LabelSelector: &metav1.LabelSelector{
+									MatchLabels: map[string]string{
+										"app.kubernetes.io/instance": getSemeruCompilerNameWithGeneration(wlva),
 									},
 								},
 							},