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controller: ignore non-service backends (#7332)

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* controller: ignore non-service backends

Signed-off-by: Carlos Panato <ctadeu@gmail.com>

* update per feedback

Signed-off-by: Carlos Panato <ctadeu@gmail.com>
This commit is contained in:
Carlos Tadeu Panato Junior 2021-07-12 15:36:48 +02:00 • committed by GitHub
parent 73943ad6f1
commit 21812311ab
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2 changed files with 86 additions and 0 deletions
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25
internal/ingress/controller/controller.go
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@ -573,6 +573,12 @@ func (n *NGINXController) getBackendServers(ingresses []*ingress.Ingress) ([]*in
}
for _, path := range rule.HTTP.Paths {
if path.Backend.Service == nil {
// skip non-service backends
klog.V(3).Infof("Ingress %q and path %q does not contain a service backend, using default backend", ingKey, path.Path)
continue
}
upsName := upstreamName(ing.Namespace, path.Backend.Service)
ups := upstreams[upsName]
@ -788,6 +794,7 @@ func (n *NGINXController) createUpstreams(data []*ingress.Ingress, du *ingress.B
upstreams[defUpstreamName] = du
for _, ing := range data {
ingKey := k8s.MetaNamespaceKey(ing)
anns := ing.ParsedAnnotations
var defBackend string
@ -852,6 +859,12 @@ func (n *NGINXController) createUpstreams(data []*ingress.Ingress, du *ingress.B
}
for _, path := range rule.HTTP.Paths {
if path.Backend.Service == nil {
// skip non-service backends
klog.V(3).Infof("Ingress %q and path %q does not contain a service backend, using default backend", ingKey, path.Path)
continue
}
name := upstreamName(ing.Namespace, path.Backend.Service)
svcName, svcPort := upstreamServiceNameAndPort(path.Backend.Service)
if _, ok := upstreams[name]; ok {
@ -1391,6 +1404,12 @@ func mergeAlternativeBackends(ing *ingress.Ingress, upstreams map[string]*ingres
}
for _, path := range rule.HTTP.Paths {
if path.Backend.Service == nil {
// skip non-service backends
klog.V(3).Infof("Ingress %q and path %q does not contain a service backend, using default backend", k8s.MetaNamespaceKey(ing), path.Path)
continue
}
upsName := upstreamName(ing.Namespace, path.Backend.Service)
altUps := upstreams[upsName]
@ -1607,6 +1626,12 @@ func checkOverlap(ing *networking.Ingress, ingresses []*ingress.Ingress, servers
}
for _, path := range rule.HTTP.Paths {
if path.Backend.Service == nil {
// skip non-service backends
klog.V(3).Infof("Ingress %q and path %q does not contain a service backend, using default backend", k8s.MetaNamespaceKey(ing), path.Path)
continue
}
if path.Path == "" {
path.Path = rootLocation
}