Skip to content

Don't allocate a Public IP for internal LBs #139

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
May 11, 2023
Merged

Don't allocate a Public IP for internal LBs #139

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions apinetlet/controllers/loadbalancer_controller.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ import (
"sigs.k8s.io/controller-runtime/pkg/cluster"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
"sigs.k8s.io/controller-runtime/pkg/handler"
"sigs.k8s.io/controller-runtime/pkg/predicate"
"sigs.k8s.io/controller-runtime/pkg/source"
)

Expand Down Expand Up @@ -230,6 +231,11 @@ func (r *LoadBalancerReconciler) patchStatus(ctx context.Context, log logr.Logge
return r.Status().Patch(ctx, loadBalancer, client.MergeFrom(base))
}

var isLoadBalancerTypePublic = predicate.NewPredicateFuncs(func(obj client.Object) bool {
loadBalancer := obj.(*networkingv1alpha1.LoadBalancer)
return loadBalancer.Spec.Type == networkingv1alpha1.LoadBalancerTypePublic
})

func (r *LoadBalancerReconciler) SetupWithManager(mgr ctrl.Manager, apiNetCluster cluster.Cluster) error {
log := ctrl.Log.WithName("loadbalancer").WithName("setup")

Expand All @@ -239,6 +245,7 @@ func (r *LoadBalancerReconciler) SetupWithManager(mgr ctrl.Manager, apiNetCluste
builder.WithPredicates(
predicates.ResourceHasFilterLabel(log, r.WatchFilterValue),
predicates.ResourceIsNotExternallyManaged(log),
isLoadBalancerTypePublic,
),
).
Watches(
Expand Down
31 changes: 31 additions & 0 deletions apinetlet/controllers/loadbalancer_controller_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -173,4 +173,35 @@ var _ = Describe("LoadBalancerController", func() {
By("waiting for the public ip to be gone")
Eventually(Get(publicIP)).Should(Satisfy(apierrors.IsNotFound))
})

It("should not allocate public IPs for internal load balancers", func() {
By("creating a network")
network := &networkingv1alpha1.Network{
ObjectMeta: metav1.ObjectMeta{
Namespace: ns.Name,
GenerateName: "network-",
},
}
Expect(k8sClient.Create(ctx, network)).To(Succeed())

By("creating an internal load balancer")
loadBalancer := &networkingv1alpha1.LoadBalancer{
ObjectMeta: metav1.ObjectMeta{
Namespace: ns.Name,
GenerateName: "internal-lb-",
},
Spec: networkingv1alpha1.LoadBalancerSpec{
Type: networkingv1alpha1.LoadBalancerTypeInternal,
NetworkRef: corev1.LocalObjectReference{Name: network.Name},
IPFamilies: []corev1.IPFamily{corev1.IPv4Protocol},
IPs: []networkingv1alpha1.IPSource{
{Value: commonv1alpha1.MustParseNewIP("10.0.0.1")},
},
},
}
Expect(k8sClient.Create(ctx, loadBalancer)).To(Succeed())

By("asserting it does not get a public IP")
Consistently(Object(loadBalancer)).Should(HaveField("Status.IPs", BeEmpty()))
})
})
5 changes: 5 additions & 0 deletions go.sum
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bits-and-blooms/bitset v1.5.0 h1:NpE8frKRLGHIcEzkR+gZhiioW1+WbYV6fKwD6ZIpQT8=
github.com/blang/semver/v4 v4.0.0 h1:1PFHFE6yCCTv8C1TeyNNarDzntLi7wMI5i/pzqYIsAM=
github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2yvyW5YoQ=
github.com/cenkalti/backoff/v4 v4.1.3 h1:cFAlzYUlVYDysBEH2T5hyJZMh3+5+WCBvSnK6Q8UtC4=
Expand Down Expand Up @@ -251,6 +252,7 @@ github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq
github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f h1:y5//uYreIhSUg3J1GEMiLbxo1LJaP8RfCpH6pymGZus=
github.com/onmetal/controller-utils v0.7.0 h1:EHLPb/XimNas1VkeZZLP4g31aSz+ipiwvwWhklaQob0=
github.com/onmetal/controller-utils v0.7.0/go.mod h1:91KV/s0VaB8PC+hqsxo6OBsAhi3ICFgIFLv/36V0ng8=
github.com/onmetal/onmetal-api v0.1.1 h1:8YEtQBsxQzb+MKvbFypuYp/x8AZ96mN4NCx8bRxHvFA=
Expand Down Expand Up @@ -368,6 +370,7 @@ golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8U
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
Expand Down Expand Up @@ -670,6 +673,7 @@ gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EV
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/inf.v0 v0.9.1 h1:73M5CoZyi3ZLMOyDlQh031Cx6N9NDJ2Vvfl76EDAgDc=
gopkg.in/inf.v0 v0.9.1/go.mod h1:cWUDdTG/fYaXco+Dcufb5Vnc6Gp2YChqWtbxRZE0mXw=
gopkg.in/natefinch/lumberjack.v2 v2.0.0 h1:1Lc07Kr7qY4U2YPouBjpCLxpiyxIVoxqXgkXLknAOE8=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
Expand Down Expand Up @@ -705,6 +709,7 @@ k8s.io/component-base v0.26.3 h1:oC0WMK/ggcbGDTkdcqefI4wIZRYdK3JySx9/HADpV0g=
k8s.io/component-base v0.26.3/go.mod h1:5kj1kZYwSC6ZstHJN7oHBqcJC6yyn41eR+Sqa/mQc8E=
k8s.io/klog/v2 v2.90.1 h1:m4bYOKall2MmOiRaR1J+We67Do7vm9KiQVlT96lnHUw=
k8s.io/klog/v2 v2.90.1/go.mod h1:y1WjHnz7Dj687irZUWR/WLkLc5N1YHtjLdmgWjndZn0=
k8s.io/kms v0.26.3 h1:+rC4BMeMBkH5hrfZt9WFMRrs2m3vY2rXymisNactcTY=
k8s.io/kube-aggregator v0.26.3 h1:nc4H5ymGkWPU3c9U9UM468JcmNENY/s/mDYVW3t3uRo=
k8s.io/kube-aggregator v0.26.3/go.mod h1:SgBESB/+PfZAyceTPIanfQ7GtX9G/+mjfUbTHg3Twbo=
k8s.io/kube-openapi v0.0.0-20230109183929-3758b55a6596 h1:8cNCQs+WqqnSpZ7y0LMQPKD+RZUHU17VqLPMW3qxnxc=
Expand Down