Skip to content
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

Jump to bottom

Add support for API version v1beta2 #1

Merged
merged 6 commits into from
Oct 24, 2024
Merged

Add support for API version v1beta2 #1

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
f4cbd1f
Updates Go modules and vendoring
nkinkade Oct 2, 2024
eeda9a0
Changes import of module multi-networkpolicy from v1beta1 to v1beta2
nkinkade Oct 2, 2024
6f8c441
Adds support for endPort to policyrules.go
nkinkade Oct 2, 2024
eb4a7db
Adds a basic unit test for endPort in the port specification
nkinkade Oct 2, 2024
dc456eb
Adds endPort functionality to renderEgressPorts()
nkinkade Oct 3, 2024
f486531
Add basic unit test for endPort usage in egress rules
nkinkade Oct 3, 2024
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
4 changes: 2 additions & 2 deletions go.mod
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,11 +1,11 @@
module github.com/k8snetworkplumbingwg/multi-networkpolicy-iptables

go 1.19
go 1.21

require (
github.com/containernetworking/cni v0.8.1
github.com/containernetworking/plugins v0.8.6
github.com/k8snetworkplumbingwg/multi-networkpolicy v0.0.0-20200903074708-7b3ce95ae804
github.com/k8snetworkplumbingwg/multi-networkpolicy v0.0.0-20240528155521-f76867e779b8
github.com/k8snetworkplumbingwg/network-attachment-definition-client v0.0.0-20200528071255-22c819bc6e7e
github.com/onsi/ginkgo v1.16.4
github.com/onsi/gomega v1.27.6
Expand Down
1,800 changes: 15 additions & 1,785 deletions go.sum
View file
Open in desktop

Large diffs are not rendered by default.

30 changes: 15 additions & 15 deletions pkg/controllers/networkpolicy.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,8 +22,8 @@ import (
"sync"
"time"

multiv1beta1 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta1"
multiinformerv1beta1 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/client/informers/externalversions/k8s.cni.cncf.io/v1beta1"
multiv1beta2 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta2"
multiinformerv1beta2 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/client/informers/externalversions/k8s.cni.cncf.io/v1beta2"

"k8s.io/apimachinery/pkg/types"
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
Expand All @@ -36,13 +36,13 @@ import (
type NetworkPolicyHandler interface {
// OnPolicyAdd is called whenever creation of new policy object
// is observed.
OnPolicyAdd(policy *multiv1beta1.MultiNetworkPolicy)
OnPolicyAdd(policy *multiv1beta2.MultiNetworkPolicy)
// OnPolicyUpdate is called whenever modification of an existing
// policy object is observed.
OnPolicyUpdate(oldPolicy, policy *multiv1beta1.MultiNetworkPolicy)
OnPolicyUpdate(oldPolicy, policy *multiv1beta2.MultiNetworkPolicy)
// OnPolicyDelete is called whenever deletion of an existing policy
// object is observed.
OnPolicyDelete(policy *multiv1beta1.MultiNetworkPolicy)
OnPolicyDelete(policy *multiv1beta2.MultiNetworkPolicy)
// OnPolicySynced is called once all the initial event handlers were
// called and the state is fully propagated to local cache.
OnPolicySynced()
Expand All @@ -55,7 +55,7 @@ type NetworkPolicyConfig struct {
}

// NewNetworkPolicyConfig creates a new NetworkPolicyConfig .
func NewNetworkPolicyConfig(policyInformer multiinformerv1beta1.MultiNetworkPolicyInformer, resyncPeriod time.Duration) *NetworkPolicyConfig {
func NewNetworkPolicyConfig(policyInformer multiinformerv1beta2.MultiNetworkPolicyInformer, resyncPeriod time.Duration) *NetworkPolicyConfig {
result := &NetworkPolicyConfig{
listerSynced: policyInformer.Informer().HasSynced,
}
Expand Down Expand Up @@ -91,7 +91,7 @@ func (c *NetworkPolicyConfig) Run(stopCh <-chan struct{}) {
}

func (c *NetworkPolicyConfig) handleAddPolicy(obj interface{}) {
policy, ok := obj.(*multiv1beta1.MultiNetworkPolicy)
policy, ok := obj.(*multiv1beta2.MultiNetworkPolicy)
if !ok {
utilruntime.HandleError(fmt.Errorf("unexpected object type: %v", obj))
return
Expand All @@ -104,12 +104,12 @@ func (c *NetworkPolicyConfig) handleAddPolicy(obj interface{}) {
}

func (c *NetworkPolicyConfig) handleUpdatePolicy(oldObj, newObj interface{}) {
oldPolicy, ok := oldObj.(*multiv1beta1.MultiNetworkPolicy)
oldPolicy, ok := oldObj.(*multiv1beta2.MultiNetworkPolicy)
if !ok {
utilruntime.HandleError(fmt.Errorf("unexpected object type: %v", oldObj))
return
}
policy, ok := newObj.(*multiv1beta1.MultiNetworkPolicy)
policy, ok := newObj.(*multiv1beta2.MultiNetworkPolicy)
if !ok {
utilruntime.HandleError(fmt.Errorf("unexpected object type: %v", newObj))
return
Expand All @@ -121,13 +121,13 @@ func (c *NetworkPolicyConfig) handleUpdatePolicy(oldObj, newObj interface{}) {
}

func (c *NetworkPolicyConfig) handleDeletePolicy(obj interface{}) {
policy, ok := obj.(*multiv1beta1.MultiNetworkPolicy)
policy, ok := obj.(*multiv1beta2.MultiNetworkPolicy)
if !ok {
tombstone, ok := obj.(cache.DeletedFinalStateUnknown)
if !ok {
utilruntime.HandleError(fmt.Errorf("unexpected object type: %v", obj))
}
if policy, ok = tombstone.Obj.(*multiv1beta1.MultiNetworkPolicy); !ok {
if policy, ok = tombstone.Obj.(*multiv1beta2.MultiNetworkPolicy); !ok {
utilruntime.HandleError(fmt.Errorf("unexpected object type: %v", obj))
return
}
Expand All @@ -140,7 +140,7 @@ func (c *NetworkPolicyConfig) handleDeletePolicy(obj interface{}) {

// PolicyInfo contains information that defines a policy.
type PolicyInfo struct {
Policy *multiv1beta1.MultiNetworkPolicy
Policy *multiv1beta2.MultiNetworkPolicy
}

// Name ...
Expand Down Expand Up @@ -223,14 +223,14 @@ func (pct *PolicyChangeTracker) String() string {
return fmt.Sprintf("policyChange: %v", pct.items)
}

func (pct *PolicyChangeTracker) newPolicyInfo(policy *multiv1beta1.MultiNetworkPolicy) (*PolicyInfo, error) {
func (pct *PolicyChangeTracker) newPolicyInfo(policy *multiv1beta2.MultiNetworkPolicy) (*PolicyInfo, error) {
info := &PolicyInfo{
Policy: policy,
}
return info, nil
}

func (pct *PolicyChangeTracker) policyToPolicyMap(policy *multiv1beta1.MultiNetworkPolicy) PolicyMap {
func (pct *PolicyChangeTracker) policyToPolicyMap(policy *multiv1beta2.MultiNetworkPolicy) PolicyMap {
if policy == nil {
return nil
}
Expand All @@ -245,7 +245,7 @@ func (pct *PolicyChangeTracker) policyToPolicyMap(policy *multiv1beta1.MultiNetw
}

// Update ...
func (pct *PolicyChangeTracker) Update(previous, current *multiv1beta1.MultiNetworkPolicy) bool {
func (pct *PolicyChangeTracker) Update(previous, current *multiv1beta2.MultiNetworkPolicy) bool {
policy := current

if pct == nil {
Expand Down
18 changes: 9 additions & 9 deletions pkg/controllers/networkpolicy_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -20,9 +20,9 @@ import (
//"fmt"
"time"

multiv1beta1 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta1"
multiv1beta2 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta2"
multifake "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/client/clientset/versioned/fake"
multiinformerv1beta1 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/client/informers/externalversions"
multiinformerv1beta2 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/client/informers/externalversions"

metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
types "k8s.io/apimachinery/pkg/types"
Expand All @@ -38,15 +38,15 @@ type FakeNetworkPolicyConfigStub struct {
CounterSynced int
}

func (f *FakeNetworkPolicyConfigStub) OnPolicyAdd(_ *multiv1beta1.MultiNetworkPolicy) {
func (f *FakeNetworkPolicyConfigStub) OnPolicyAdd(_ *multiv1beta2.MultiNetworkPolicy) {
f.CounterAdd++
}

func (f *FakeNetworkPolicyConfigStub) OnPolicyUpdate(_, _ *multiv1beta1.MultiNetworkPolicy) {
func (f *FakeNetworkPolicyConfigStub) OnPolicyUpdate(_, _ *multiv1beta2.MultiNetworkPolicy) {
f.CounterUpdate++
}

func (f *FakeNetworkPolicyConfigStub) OnPolicyDelete(_ *multiv1beta1.MultiNetworkPolicy) {
func (f *FakeNetworkPolicyConfigStub) OnPolicyDelete(_ *multiv1beta2.MultiNetworkPolicy) {
f.CounterDelete++
}

Expand All @@ -57,14 +57,14 @@ func (f *FakeNetworkPolicyConfigStub) OnPolicySynced() {
func NewFakeNetworkPolicyConfig(stub *FakeNetworkPolicyConfigStub) *NetworkPolicyConfig {
configSync := 15 * time.Minute
fakeClient := multifake.NewSimpleClientset()
informerFactory := multiinformerv1beta1.NewSharedInformerFactoryWithOptions(fakeClient, configSync)
policyConfig := NewNetworkPolicyConfig(informerFactory.K8sCniCncfIo().V1beta1().MultiNetworkPolicies(), configSync)
informerFactory := multiinformerv1beta2.NewSharedInformerFactoryWithOptions(fakeClient, configSync)
policyConfig := NewNetworkPolicyConfig(informerFactory.K8sCniCncfIo().V1beta2().MultiNetworkPolicies(), configSync)
policyConfig.RegisterEventHandler(stub)
return policyConfig
}

func NewNetworkPolicy(namespace, name string) *multiv1beta1.MultiNetworkPolicy {
return &multiv1beta1.MultiNetworkPolicy{
func NewNetworkPolicy(namespace, name string) *multiv1beta2.MultiNetworkPolicy {
return &multiv1beta2.MultiNetworkPolicy{
ObjectMeta: metav1.ObjectMeta{
Namespace: namespace,
Name: name,
Expand Down
32 changes: 18 additions & 14 deletions pkg/server/policyrules.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ import (
"strings"

"github.com/k8snetworkplumbingwg/multi-networkpolicy-iptables/pkg/controllers"
multiv1beta1 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta1"
multiv1beta2 "github.com/k8snetworkplumbingwg/multi-networkpolicy/pkg/apis/k8s.cni.cncf.io/v1beta2"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/labels"
Expand Down Expand Up @@ -141,10 +141,10 @@ func (ipt *iptableBuffer) FinalizeRules() {

func (ipt *iptableBuffer) SaveRules(path string) error {
file, err := os.Create(path)
defer file.Close()
if err != nil {
return err
}
defer file.Close()
//_, err = ipt.filterRules.WriteTo(file)
fmt.Fprintf(file, "%s", ipt.filterRules.String())
return err
Expand Down Expand Up @@ -216,7 +216,7 @@ func (ipt *iptableBuffer) renderIngressCommon(s *Server) {
writeLine(ipt.policyCommon, "-A", ingressCommonChain, "-m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT")
}

func (ipt *iptableBuffer) renderIngress(s *Server, podInfo *controllers.PodInfo, idx int, policy *multiv1beta1.MultiNetworkPolicy, policyNetworks []string) {
func (ipt *iptableBuffer) renderIngress(s *Server, podInfo *controllers.PodInfo, idx int, policy *multiv1beta2.MultiNetworkPolicy, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-INGRESS", idx)
ipt.CreateFilterChain(chainName)

Expand All @@ -240,7 +240,7 @@ func (ipt *iptableBuffer) renderIngress(s *Server, podInfo *controllers.PodInfo,
}
}

func (ipt *iptableBuffer) renderIngressPorts(_ *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, ports []multiv1beta1.MultiNetworkPolicyPort, policyNetworks []string) {
func (ipt *iptableBuffer) renderIngressPorts(_ *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, ports []multiv1beta2.MultiNetworkPolicyPort, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-INGRESS-%d-PORTS", pIndex, iIndex)
ipt.CreateFilterChain(chainName)

Expand All @@ -255,9 +255,13 @@ func (ipt *iptableBuffer) renderIngressPorts(_ *Server, podInfo *controllers.Pod
if !podIntf.CheckPolicyNetwork(policyNetworks) {
continue
}
dport := port.Port.String()
if port.EndPort != nil {
dport = fmt.Sprintf("%s:%d", port.Port.String(), *port.EndPort)
}
writeLine(ipt.ingressPorts, "-A", chainName,
"-i", podIntf.InterfaceName,
"-m", proto, "-p", proto, "--dport", port.Port.String(),
"-m", proto, "-p", proto, "--dport", dport,
"-j", "MARK", "--set-xmark", "0x10000/0x10000")
validPorts++
}
Expand All @@ -269,10 +273,9 @@ func (ipt *iptableBuffer) renderIngressPorts(_ *Server, podInfo *controllers.Pod
"-m", "comment", "--comment", "\"no ingress ports, skipped\"",
"-j", "MARK", "--set-xmark", "0x10000/0x10000")
}
return
}

func (ipt *iptableBuffer) renderIngressFrom(s *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, from []multiv1beta1.MultiNetworkPolicyPeer, policyNetworks []string) {
func (ipt *iptableBuffer) renderIngressFrom(s *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, from []multiv1beta2.MultiNetworkPolicyPeer, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-INGRESS-%d-FROM", pIndex, iIndex)
ipt.CreateFilterChain(chainName)

Expand Down Expand Up @@ -391,7 +394,6 @@ func (ipt *iptableBuffer) renderIngressFrom(s *Server, podInfo *controllers.PodI
"-m", "comment", "--comment", "\"no ingress from, skipped\"",
"-j", "MARK", "--set-xmark", "0x20000/0x20000")
}
return
}

func (ipt *iptableBuffer) renderEgressCommon(s *Server) {
Expand Down Expand Up @@ -442,7 +444,7 @@ func (ipt *iptableBuffer) renderEgressCommon(s *Server) {
writeLine(ipt.policyCommon, "-A", egressCommonChain, "-m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT")
}

func (ipt *iptableBuffer) renderEgress(s *Server, podInfo *controllers.PodInfo, idx int, policy *multiv1beta1.MultiNetworkPolicy, policyNetworks []string) {
func (ipt *iptableBuffer) renderEgress(s *Server, podInfo *controllers.PodInfo, idx int, policy *multiv1beta2.MultiNetworkPolicy, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-EGRESS", idx)
ipt.CreateFilterChain(chainName)

Expand All @@ -465,7 +467,7 @@ func (ipt *iptableBuffer) renderEgress(s *Server, podInfo *controllers.PodInfo,
}
}

func (ipt *iptableBuffer) renderEgressPorts(_ *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, ports []multiv1beta1.MultiNetworkPolicyPort, policyNetworks []string) {
func (ipt *iptableBuffer) renderEgressPorts(_ *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, ports []multiv1beta2.MultiNetworkPolicyPort, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-EGRESS-%d-PORTS", pIndex, iIndex)
ipt.CreateFilterChain(chainName)

Expand All @@ -480,9 +482,13 @@ func (ipt *iptableBuffer) renderEgressPorts(_ *Server, podInfo *controllers.PodI
if !podIntf.CheckPolicyNetwork(policyNetworks) {
continue
}
dport := port.Port.String()
if port.EndPort != nil {
dport = fmt.Sprintf("%s:%d", port.Port.String(), *port.EndPort)
}
writeLine(ipt.egressPorts, "-A", chainName,
"-o", podIntf.InterfaceName,
"-m", proto, "-p", proto, "--dport", port.Port.String(),
"-m", proto, "-p", proto, "--dport", dport,
"-j", "MARK", "--set-xmark", "0x10000/0x10000")
validPorts++
}
Expand All @@ -494,10 +500,9 @@ func (ipt *iptableBuffer) renderEgressPorts(_ *Server, podInfo *controllers.PodI
"-m", "comment", "--comment", "\"no egress ports, skipped\"",
"-j", "MARK", "--set-xmark", "0x10000/0x10000")
}
return
}

func (ipt *iptableBuffer) renderEgressTo(s *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, to []multiv1beta1.MultiNetworkPolicyPeer, policyNetworks []string) {
func (ipt *iptableBuffer) renderEgressTo(s *Server, podInfo *controllers.PodInfo, pIndex, iIndex int, to []multiv1beta2.MultiNetworkPolicyPeer, policyNetworks []string) {
chainName := fmt.Sprintf("MULTI-%d-EGRESS-%d-TO", pIndex, iIndex)
ipt.CreateFilterChain(chainName)

Expand Down Expand Up @@ -618,7 +623,6 @@ func (ipt *iptableBuffer) renderEgressTo(s *Server, podInfo *controllers.PodInfo
"-m", "comment", "--comment", "\"no egress to, skipped\"",
"-j", "MARK", "--set-xmark", "0x20000/0x20000")
}
return
}

func (ipt *iptableBuffer) isIPFamilyCompatible(ip string) bool {
Expand Down
Loading