1. Create WildFlyServer resource with envFrom: []
   empty-envfrom-reproducer.yaml

   apiVersion: wildfly.org/v1alpha1
   kind: WildFlyServer
   metadata:   name: empty-envfrom-reproducer
   spec:   applicationImage: 'brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888/jboss-eap-7-tech-preview/eap-cd-openshift-rhel8:17.0-4'
     size: 1
     envFrom: []
   

oc create -f empty-envfrom-reproducer.yaml

1. Pods are started properly in Ready state. But empty-envfrom-reproducer is not updated with status stanza.
2. After manually deleting envFrom: [] from resource, status is created and filled properly

   status:   hosts:     - >-
         empty-envfrom-reproducer-mchoma.apps.multinode-nfs-mchoma-001.dynamic.xpaas
     pods:     - name: empty-envfrom-reproducer-0
         podIP: 10.130.0.208
   

3. Operator pod log

   {"level":"info","ts":1568705927.510753,"logger":"cmd","msg":"Go Version: go1.12.7"}
   {"level":"info","ts":1568705927.5108342,"logger":"cmd","msg":"Go OS/Arch: linux/amd64"}
   {"level":"info","ts":1568705927.5108497,"logger":"cmd","msg":"Version of operator-sdk: v0.8.1"}
   {"level":"info","ts":1568705927.5111423,"logger":"leader","msg":"Trying to become the leader."}
   {"level":"info","ts":1568705927.594317,"logger":"leader","msg":"No pre-existing lock was found."}
   {"level":"info","ts":1568705927.5975504,"logger":"leader","msg":"Became the leader."}
   {"level":"info","ts":1568705927.6472175,"logger":"cmd","msg":"Registering Components."}
   {"level":"info","ts":1568705927.6474228,"logger":"utils","msg":"detecting platform version..."}
   {"level":"info","ts":1568705927.6507683,"logger":"utils","msg":"route.openshift.io found in apis, platform is OpenShift"}
   {"level":"info","ts":1568705927.6508126,"logger":"utils","msg":"PlatformInfo [Name: OpenShift, K8SVersion: 1.11+, OS: linux/amd64]"}
   {"level":"info","ts":1568705927.6509123,"logger":"kubebuilder.controller","msg":"Starting EventSource","controller":"wildflyserver-controller","source":"kind source: /, Kind="}
   {"level":"info","ts":1568705927.651141,"logger":"kubebuilder.controller","msg":"Starting EventSource","controller":"wildflyserver-controller","source":"kind source: /, Kind="}
   {"level":"info","ts":1568705927.6512737,"logger":"kubebuilder.controller","msg":"Starting EventSource","controller":"wildflyserver-controller","source":"kind source: /, Kind="}
   {"level":"info","ts":1568705927.6513739,"logger":"utils","msg":"detecting platform version..."}
   {"level":"info","ts":1568705927.653909,"logger":"utils","msg":"route.openshift.io found in apis, platform is OpenShift"}
   {"level":"info","ts":1568705927.653929,"logger":"utils","msg":"PlatformInfo [Name: OpenShift, K8SVersion: 1.11+, OS: linux/amd64]"}
   {"level":"info","ts":1568705927.65394,"logger":"kubebuilder.controller","msg":"Starting EventSource","controller":"wildflyserver-controller","source":"kind source: /, Kind="}
   {"level":"info","ts":1568705927.7098546,"logger":"cmd","msg":"failed to create or get service for metrics: services \"wildfly-operator\" is forbidden: cannot set blockOwnerDeletion if an ownerReference refers to a resource you can't set finalizers on: no RBAC policy matched, <nil>"}
   {"level":"info","ts":1568705927.7099428,"logger":"cmd","msg":"Starting the Cmd."}
   {"level":"info","ts":1568705927.8103025,"logger":"kubebuilder.controller","msg":"Starting Controller","controller":"wildflyserver-controller"}
   {"level":"info","ts":1568705927.9105484,"logger":"kubebuilder.controller","msg":"Starting workers","controller":"wildflyserver-controller","worker count":1}
   {"level":"info","ts":1568705999.590361,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.590594,"logger":"controller_wildflyserver","msg":"Creating a new StatefulSet.","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6067576,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6069276,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6118605,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6120145,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6286259,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6287735,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.636309,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.6363795,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.7196531,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.7197673,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.8841014,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568705999.88426,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706000.2099004,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706000.210038,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706000.8545172,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706000.8546531,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706002.1387296,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706002.138901,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706002.885167,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706002.8852742,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706004.7032814,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706004.7033875,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706014.9472132,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706014.947392,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706035.435317,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706035.4354827,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706076.402556,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706076.4027927,"logger":"controller_wildflyserver","msg":"Updating envFrom","StatefulSet.Namespace":"mchoma","StatefulSet.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.455402,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.4555542,"logger":"controller_wildflyserver","msg":"Creating a new LoadBalancer.","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer","LoadBalancer.Namespace":"mchoma","LoadBalancer.Name":"empty-envfrom-reproducer-loadbalancer"}
   {"level":"info","ts":1568706088.4717329,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.4718812,"logger":"controller_wildflyserver","msg":"Creating a new Route.","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer","Route.Namespace":"mchoma","Route.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.4799702,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.5806746,"logger":"controller_wildflyserver","msg":"Updating hosts","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer","WildFlyServer":{"kind":"WildFlyServer","apiVersion":"wildfly.org/v1alpha1","metadata":{"name":"empty-envfrom-reproducer","namespace":"mchoma","selfLink":"/apis/wildfly.org/v1alpha1/namespaces/mchoma/wildflyservers/empty-envfrom-reproducer","uid":"46bcc345-d91e-11e9-b23d-fa163e9a0fb6","resourceVersion":"7076790","generation":2,"creationTimestamp":"2019-09-17T07:39:27Z"},"spec":{"applicationImage":"brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888/jboss-eap-7-tech-preview/eap-cd-openshift-rhel8:17.0-4","size":1},"status":{}}}
   {"level":"info","ts":1568706088.5878873,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}
   {"level":"info","ts":1568706088.5880494,"logger":"controller_wildflyserver","msg":"Updating hosts","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer","WildFlyServer":{"kind":"WildFlyServer","apiVersion":"wildfly.org/v1alpha1","metadata":{"name":"empty-envfrom-reproducer","namespace":"mchoma","selfLink":"/apis/wildfly.org/v1alpha1/namespaces/mchoma/wildflyservers/empty-envfrom-reproducer","uid":"46bcc345-d91e-11e9-b23d-fa163e9a0fb6","resourceVersion":"7076797","generation":2,"creationTimestamp":"2019-09-17T07:39:27Z"},"spec":{"applicationImage":"brew-pulp-docker01.web.prod.ext.phx2.redhat.com:8888/jboss-eap-7-tech-preview/eap-cd-openshift-rhel8:17.0-4","size":1},"status":{"pods":[{"name":"empty-envfrom-reproducer-0","podIP":"10.130.0.208"}],"hosts":["empty-envfrom-reproducer-mchoma.apps.multinode-nfs-mchoma-001.dynamic.xpaas"]}}}
   {"level":"info","ts":1568706088.593367,"logger":"controller_wildflyserver","msg":"Reconciling WildFlyServer","Request.Namespace":"mchoma","Request.Name":"empty-envfrom-reproducer"}