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policy_test.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright Authors of Cilium
package cmd
import (
"context"
"fmt"
"net/netip"
"os"
"path/filepath"
"sort"
"sync"
"testing"
"time"
cilium "github.com/cilium/proxy/go/cilium/api"
envoy_config_core "github.com/cilium/proxy/go/envoy/config/core/v3"
envoy_config_route "github.com/cilium/proxy/go/envoy/config/route/v3"
envoy_type_matcher "github.com/cilium/proxy/go/envoy/type/matcher/v3"
"github.com/stretchr/testify/require"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sTypes "k8s.io/apimachinery/pkg/types"
"k8s.io/client-go/tools/cache"
"github.com/cilium/cilium/pkg/common"
"github.com/cilium/cilium/pkg/endpoint"
"github.com/cilium/cilium/pkg/endpoint/regeneration"
"github.com/cilium/cilium/pkg/identity"
k8sConst "github.com/cilium/cilium/pkg/k8s/apis/cilium.io"
"github.com/cilium/cilium/pkg/k8s/apis/cilium.io/utils"
v2 "github.com/cilium/cilium/pkg/k8s/apis/cilium.io/v2"
slim_metav1 "github.com/cilium/cilium/pkg/k8s/slim/k8s/apis/meta/v1"
"github.com/cilium/cilium/pkg/k8s/types"
"github.com/cilium/cilium/pkg/labels"
"github.com/cilium/cilium/pkg/metrics"
"github.com/cilium/cilium/pkg/policy"
"github.com/cilium/cilium/pkg/policy/api"
"github.com/cilium/cilium/pkg/testutils"
testidentity "github.com/cilium/cilium/pkg/testutils/identity"
testipcache "github.com/cilium/cilium/pkg/testutils/ipcache"
)
var (
QAIPv6Addr = netip.MustParseAddr("beef:beef:beef:beef:aaaa:aaaa:1111:1112")
QAIPv4Addr = netip.MustParseAddr("10.11.12.13")
ProdIPv6Addr = netip.MustParseAddr("cafe:cafe:cafe:cafe:aaaa:aaaa:1111:1112")
ProdIPv4Addr = netip.MustParseAddr("10.11.12.14")
lblProd = labels.ParseLabel("Prod")
lblQA = labels.ParseLabel("QA")
lblFoo = labels.ParseLabel("foo")
lblBar = labels.ParseLabel("bar")
lblJoe = labels.ParseLabel("user=joe")
lblPete = labels.ParseLabel("user=pete")
testQAEndpointID = uint16(1)
testProdEndpointID = uint16(2)
policyAddOptions = &policy.AddOptions{}
regenerationMetadata = ®eneration.ExternalRegenerationMetadata{
Reason: "test",
RegenerationLevel: regeneration.RegenerateWithoutDatapath,
}
CNPAllowTCP80 = api.PortRule{
Ports: []api.PortProtocol{
{Port: "80", Protocol: api.ProtoTCP},
},
}
CNPAllowGETbar = api.PortRule{
Ports: CNPAllowTCP80.Ports,
Rules: &api.L7Rules{
HTTP: []api.PortRuleHTTP{
{
Path: "/bar",
Method: "GET",
},
},
},
}
CNPAllowGETbarLog = api.PortRule{
Ports: CNPAllowTCP80.Ports,
Rules: &api.L7Rules{
HTTP: []api.PortRuleHTTP{
{
Method: "GET",
HeaderMatches: []*api.HeaderMatch{{
Mismatch: api.MismatchActionLog,
Name: ":path",
Value: "/bar",
}},
},
},
},
}
PNPAllowAll = cilium.PortNetworkPolicyRule_HttpRules{
HttpRules: &cilium.HttpNetworkPolicyRules{
HttpRules: []*cilium.HttpNetworkPolicyRule{
{},
},
},
}
PNPAllowGETbar = cilium.PortNetworkPolicyRule_HttpRules{
HttpRules: &cilium.HttpNetworkPolicyRules{
HttpRules: []*cilium.HttpNetworkPolicyRule{
{
Headers: []*envoy_config_route.HeaderMatcher{
{
Name: ":method",
HeaderMatchSpecifier: &envoy_config_route.HeaderMatcher_StringMatch{
StringMatch: &envoy_type_matcher.StringMatcher{
MatchPattern: &envoy_type_matcher.StringMatcher_SafeRegex{
SafeRegex: &envoy_type_matcher.RegexMatcher{
Regex: "GET",
},
},
},
},
},
{
Name: ":path",
HeaderMatchSpecifier: &envoy_config_route.HeaderMatcher_StringMatch{
StringMatch: &envoy_type_matcher.StringMatcher{
MatchPattern: &envoy_type_matcher.StringMatcher_SafeRegex{
SafeRegex: &envoy_type_matcher.RegexMatcher{
Regex: "/bar",
},
},
},
},
},
},
},
},
},
}
PNPAllowGETbarLog = cilium.PortNetworkPolicyRule_HttpRules{
HttpRules: &cilium.HttpNetworkPolicyRules{
HttpRules: []*cilium.HttpNetworkPolicyRule{
{
Headers: []*envoy_config_route.HeaderMatcher{
{
Name: ":method",
HeaderMatchSpecifier: &envoy_config_route.HeaderMatcher_StringMatch{
StringMatch: &envoy_type_matcher.StringMatcher{
MatchPattern: &envoy_type_matcher.StringMatcher_SafeRegex{
SafeRegex: &envoy_type_matcher.RegexMatcher{
Regex: "GET",
},
},
},
},
},
},
HeaderMatches: []*cilium.HeaderMatch{
{
Name: ":path",
Value: "/bar",
MismatchAction: cilium.HeaderMatch_CONTINUE_ON_MISMATCH,
},
},
},
},
},
}
PNPAllowWildcardGETbar = cilium.PortNetworkPolicyRule_HttpRules{
HttpRules: &cilium.HttpNetworkPolicyRules{
HttpRules: []*cilium.HttpNetworkPolicyRule{
{},
PNPAllowGETbar.HttpRules.HttpRules[0],
},
},
}
)
// getXDSNetworkPolicies returns the representation of the xDS network policies
// as a map of IP addresses to NetworkPolicy objects
func (ds *DaemonSuite) getXDSNetworkPolicies(t *testing.T, resourceNames []string) map[string]*cilium.NetworkPolicy {
networkPolicies, err := ds.d.envoyXdsServer.GetNetworkPolicies(resourceNames)
require.NoError(t, err)
return networkPolicies
}
func prepareEndpointDirs() (cleanup func(), err error) {
var testDirs []string
for testEndpointID := range []uint16{testQAEndpointID, testProdEndpointID} {
testEPDir := fmt.Sprintf("%d", testEndpointID)
if err = os.Mkdir(testEPDir, 0755); err != nil {
for _, dir := range testDirs {
os.RemoveAll(dir)
}
return func() {}, err
}
testDirs = append(testDirs, testEPDir)
}
return func() {
for _, testEPDir := range testDirs {
os.RemoveAll(filepath.Join(testEPDir, common.CHeaderFileName))
os.RemoveAll(filepath.Join(testEPDir, common.EndpointStateFileName))
time.Sleep(1 * time.Second)
os.RemoveAll(testEPDir)
os.RemoveAll(fmt.Sprintf("%s_backup", testEPDir))
}
}, nil
}
func (ds *DaemonSuite) prepareEndpoint(t *testing.T, identity *identity.Identity, qa bool) *endpoint.Endpoint {
testEndpointID := testProdEndpointID
if qa {
testEndpointID = testQAEndpointID
}
e := endpoint.NewTestEndpointWithState(ds.d, ds.d, testipcache.NewMockIPCache(), ds.d.l7Proxy, ds.d.identityAllocator, testEndpointID, endpoint.StateWaitingForIdentity)
e.SetPropertyValue(endpoint.PropertyFakeEndpoint, false)
e.SetPropertyValue(endpoint.PropertyWithouteBPFDatapath, true)
e.SetPropertyValue(endpoint.PropertySkipBPFPolicy, true)
if qa {
e.IPv6 = QAIPv6Addr
e.IPv4 = QAIPv4Addr
} else {
e.IPv6 = ProdIPv6Addr
e.IPv4 = ProdIPv4Addr
}
e.SetIdentity(identity, true)
ready := e.SetState(endpoint.StateWaitingToRegenerate, "test")
require.True(t, ready)
buildSuccess := <-e.Regenerate(regenerationMetadata)
require.True(t, buildSuccess)
return e
}
func (ds *DaemonSuite) regenerateEndpoint(t *testing.T, e *endpoint.Endpoint) {
ready := e.SetState(endpoint.StateWaitingToRegenerate, "test")
require.True(t, ready)
buildSuccess := <-e.Regenerate(regenerationMetadata)
require.True(t, buildSuccess)
}
func TestUpdateConsumerMapEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testUpdateConsumerMap(t)
}
func (ds *DaemonSuite) testUpdateConsumerMap(t *testing.T) {
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblJoe),
api.NewESFromLabels(lblPete),
api.NewESFromLabels(lblFoo),
},
},
},
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbar,
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblQA),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblQA),
},
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblProd),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblProd),
},
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err3 := ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err3)
// Prepare the identities necessary for testing
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
prodBarLbls := labels.Labels{lblBar.Key: lblBar, lblProd.Key: lblProd}
prodBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), prodBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), prodBarSecLblsCtx, false)
qaFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblQA.Key: lblQA}
qaFooSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaFooSecLblsCtx, false)
prodFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblProd.Key: lblProd}
prodFooSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), prodFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), prodFooSecLblsCtx, false)
prodFooJoeLbls := labels.Labels{lblFoo.Key: lblFoo, lblProd.Key: lblProd, lblJoe.Key: lblJoe}
prodFooJoeSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), prodFooJoeLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), prodFooJoeSecLblsCtx, false)
// Prepare endpoints
cleanup, err2 := prepareEndpointDirs()
require.NoError(t, err2)
defer cleanup()
eQABar := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
require.False(t, eQABar.Allows(qaBarSecLblsCtx.ID))
require.False(t, eQABar.Allows(prodBarSecLblsCtx.ID))
require.True(t, eQABar.Allows(qaFooSecLblsCtx.ID))
require.False(t, eQABar.Allows(prodFooSecLblsCtx.ID))
eProdBar := ds.prepareEndpoint(t, prodBarSecLblsCtx, false)
require.False(t, eProdBar.Allows(0))
require.False(t, eProdBar.Allows(qaBarSecLblsCtx.ID))
require.False(t, eProdBar.Allows(prodBarSecLblsCtx.ID))
require.False(t, eProdBar.Allows(qaFooSecLblsCtx.ID))
require.True(t, eProdBar.Allows(prodFooSecLblsCtx.ID))
require.True(t, eProdBar.Allows(prodFooJoeSecLblsCtx.ID))
// Check that both policies have been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 4)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
require.NotNil(t, qaBarNetworkPolicy)
expectedRemotePolicies := []uint32{
uint32(qaFooSecLblsCtx.ID),
// The prodFoo* identities are allowed by FromEndpoints but rejected by
// FromRequires, so they are not included in the remote policies:
// uint32(prodFooSecLblsCtx.ID),
// uint32(prodFooJoeSecLblsCtx.ID),
}
sort.Slice(expectedRemotePolicies, func(i, j int) bool {
return expectedRemotePolicies[i] < expectedRemotePolicies[j]
})
expectedNetworkPolicy := &cilium.NetworkPolicy{
EndpointIps: []string{QAIPv6Addr.String(), QAIPv4Addr.String()},
EndpointId: uint64(eQABar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 0,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
RemotePolicies: expectedRemotePolicies,
},
},
},
{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
L7: &PNPAllowGETbar,
},
},
},
},
EgressPerPortPolicies: []*cilium.PortNetworkPolicy{ // Allow-all policy.
{Protocol: envoy_config_core.SocketAddress_TCP},
},
}
require.Equal(t, expectedNetworkPolicy, qaBarNetworkPolicy)
prodBarNetworkPolicy := networkPolicies[ProdIPv4Addr.String()]
require.NotNil(t, prodBarNetworkPolicy)
expectedRemotePolicies = []uint32{
// The qaFoo identity is allowed by FromEndpoints but rejected by
// FromRequires, so it is not included in the remote policies:
// uint64(qaFooSecLblsCtx.ID),
uint32(prodFooSecLblsCtx.ID),
uint32(prodFooJoeSecLblsCtx.ID),
}
sort.Slice(expectedRemotePolicies, func(i, j int) bool {
return expectedRemotePolicies[i] < expectedRemotePolicies[j]
})
expectedNetworkPolicy = &cilium.NetworkPolicy{
EndpointIps: []string{ProdIPv6Addr.String(), ProdIPv4Addr.String()},
EndpointId: uint64(eProdBar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 0,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
RemotePolicies: expectedRemotePolicies,
},
},
},
{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
L7: &PNPAllowGETbar,
},
},
},
},
EgressPerPortPolicies: []*cilium.PortNetworkPolicy{ // Allow-all policy.
{Protocol: envoy_config_core.SocketAddress_TCP},
},
}
require.Equal(t, expectedNetworkPolicy, prodBarNetworkPolicy)
}
func TestL4L7ShadowingEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testL4L7Shadowing(t)
}
func (ds *DaemonSuite) testL4L7Shadowing(t *testing.T) {
// Prepare the identities necessary for testing
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
qaFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblQA.Key: lblQA}
qaFooSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaFooSecLblsCtx, false)
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
ToPorts: []api.PortRule{
// Allow all on port 80 (no proxy)
CNPAllowTCP80,
},
},
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbarLog,
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err = ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err)
// Prepare endpoints
cleanup, err := prepareEndpointDirs()
require.NoError(t, err)
defer cleanup()
eQABar := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
require.False(t, eQABar.Allows(qaBarSecLblsCtx.ID))
require.False(t, eQABar.Allows(qaFooSecLblsCtx.ID))
// Check that both policies have been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 2)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
expectedNetworkPolicy := &cilium.NetworkPolicy{
EndpointIps: []string{QAIPv6Addr.String(), QAIPv4Addr.String()},
EndpointId: uint64(eQABar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{},
{
RemotePolicies: []uint32{uint32(qaFooSecLblsCtx.ID)},
L7: &PNPAllowGETbarLog,
},
},
},
},
EgressPerPortPolicies: []*cilium.PortNetworkPolicy{ // Allow-all policy.
{Protocol: envoy_config_core.SocketAddress_TCP},
},
}
require.Equal(t, expectedNetworkPolicy, qaBarNetworkPolicy)
}
func TestL4L7ShadowingShortCircuitEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testL4L7ShadowingShortCircuit(t)
}
// HTTP rules here have no side effects, so the L4 allow-all rule is
// short-circuiting the HTTP rules (i.e., the network policy sent to
// envoy does not even have the HTTP rules).
func (ds *DaemonSuite) testL4L7ShadowingShortCircuit(t *testing.T) {
// Prepare the identities necessary for testing
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
qaFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblQA.Key: lblQA}
qaFooSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaFooSecLblsCtx, false)
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
ToPorts: []api.PortRule{
// Allow all on port 80 (no proxy)
CNPAllowTCP80,
},
},
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbar,
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err = ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err)
// Prepare endpoints
cleanup, err := prepareEndpointDirs()
require.NoError(t, err)
defer cleanup()
eQABar := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
require.False(t, eQABar.Allows(qaBarSecLblsCtx.ID))
require.False(t, eQABar.Allows(qaFooSecLblsCtx.ID))
// Check that both policies have been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 2)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
expectedNetworkPolicy := &cilium.NetworkPolicy{
EndpointIps: []string{QAIPv6Addr.String(), QAIPv4Addr.String()},
EndpointId: uint64(eQABar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: nil,
},
},
EgressPerPortPolicies: []*cilium.PortNetworkPolicy{ // Allow-all policy.
{Protocol: envoy_config_core.SocketAddress_TCP},
},
}
require.Equal(t, expectedNetworkPolicy, qaBarNetworkPolicy)
}
func TestL3DependentL7Etcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testL3DependentL7(t)
}
func (ds *DaemonSuite) testL3DependentL7(t *testing.T) {
// Prepare the identities necessary for testing
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
qaFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblQA.Key: lblQA}
qaFooSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaFooSecLblsCtx, false)
qaJoeLbls := labels.Labels{lblJoe.Key: lblJoe, lblQA.Key: lblQA}
qaJoeSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaJoeLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaJoeSecLblsCtx, false)
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbar,
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblJoe),
},
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err = ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err)
// Prepare endpoints
cleanup, err := prepareEndpointDirs()
require.NoError(t, err)
defer cleanup()
eQABar := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
require.False(t, eQABar.Allows(qaBarSecLblsCtx.ID))
require.False(t, eQABar.Allows(qaFooSecLblsCtx.ID))
require.True(t, eQABar.Allows(qaJoeSecLblsCtx.ID))
// Check that both policies have been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 2)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
expectedNetworkPolicy := &cilium.NetworkPolicy{
EndpointIps: []string{QAIPv6Addr.String(), QAIPv4Addr.String()},
EndpointId: uint64(eQABar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 0,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
RemotePolicies: []uint32{uint32(qaJoeSecLblsCtx.ID)},
},
},
},
{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
L7: &PNPAllowGETbar,
},
},
},
},
EgressPerPortPolicies: []*cilium.PortNetworkPolicy{ // Allow-all policy.
{Protocol: envoy_config_core.SocketAddress_TCP},
},
}
require.Equal(t, expectedNetworkPolicy, qaBarNetworkPolicy)
}
func TestReplacePolicyEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testReplacePolicy(t)
}
func (ds *DaemonSuite) testReplacePolicy(t *testing.T) {
lbls := labels.ParseLabelArray("foo", "bar")
rules := api.Rules{
{
Labels: lbls,
EndpointSelector: api.NewESFromLabels(lblBar),
Egress: []api.EgressRule{
{
EgressCommonRule: api.EgressCommonRule{
ToCIDR: []api.CIDR{
"1.1.1.1/32",
"2.2.2.0/24",
},
},
},
},
},
{
Labels: lbls,
EndpointSelector: api.NewESFromLabels(lblBar),
},
}
for i := range rules {
rules[i].Sanitize()
}
_, err := ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err)
ds.d.policy.RLock()
require.Len(t, ds.d.policy.SearchRLocked(lbls), 2)
ds.d.policy.RUnlock()
rules[0].Egress = []api.EgressRule{
{
EgressCommonRule: api.EgressCommonRule{
ToCIDR: []api.CIDR{
"1.1.1.1/32",
"2.2.2.2/32",
},
},
},
}
_, err = ds.d.PolicyAdd(rules, &policy.AddOptions{Replace: true})
require.NoError(t, err)
ds.d.policy.RLock()
require.Len(t, ds.d.policy.SearchRLocked(lbls), 2)
ds.d.policy.RUnlock()
}
func TestRemovePolicyEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testRemovePolicy(t)
}
func (ds *DaemonSuite) testRemovePolicy(t *testing.T) {
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblJoe),
api.NewESFromLabels(lblPete),
api.NewESFromLabels(lblFoo),
},
},
},
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbar,
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblQA),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblQA),
},
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblProd),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblProd),
},
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err3 := ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err3)
cleanup, err2 := prepareEndpointDirs()
require.NoError(t, err2)
defer cleanup()
// Create the endpoint and generate its policy.
e := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
// Check that the policy has been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 2)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
require.NotNil(t, qaBarNetworkPolicy)
// Delete the endpoint.
e.Delete(endpoint.DeleteConfig{})
// Check that the policy has been removed from the xDS cache.
networkPolicies = ds.getXDSNetworkPolicies(t, nil)
require.Empty(t, networkPolicies)
}
func TestIncrementalPolicyEtcd(t *testing.T) {
ds := setupDaemonEtcdSuite(t)
ds.testIncrementalPolicy(t)
}
func (ds *DaemonSuite) testIncrementalPolicy(t *testing.T) {
qaBarLbls := labels.Labels{lblBar.Key: lblBar, lblQA.Key: lblQA}
qaBarSecLblsCtx, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaBarLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaBarSecLblsCtx, false)
rules := api.Rules{
{
EndpointSelector: api.NewESFromLabels(lblBar),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblJoe),
api.NewESFromLabels(lblPete),
api.NewESFromLabels(lblFoo),
},
},
},
{
IngressCommonRule: api.IngressCommonRule{
FromEndpoints: []api.EndpointSelector{
api.NewESFromLabels(lblFoo),
},
},
ToPorts: []api.PortRule{
// Allow Port 80 GET /bar
CNPAllowGETbar,
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblQA),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblQA),
},
},
},
},
},
{
EndpointSelector: api.NewESFromLabels(lblProd),
Ingress: []api.IngressRule{
{
IngressCommonRule: api.IngressCommonRule{
FromRequires: []api.EndpointSelector{
api.NewESFromLabels(lblProd),
},
},
},
},
},
}
for i := range rules {
rules[i].Sanitize()
}
ds.d.envoyXdsServer.RemoveAllNetworkPolicies()
_, err3 := ds.d.PolicyAdd(rules, policyAddOptions)
require.NoError(t, err3)
cleanup, err2 := prepareEndpointDirs()
require.NoError(t, err2)
defer cleanup()
// Create the endpoint and generate its policy.
eQABar := ds.prepareEndpoint(t, qaBarSecLblsCtx, true)
// Check that the policy has been updated in the xDS cache for the L7
// proxies.
networkPolicies := ds.getXDSNetworkPolicies(t, nil)
require.Len(t, networkPolicies, 2)
qaBarNetworkPolicy := networkPolicies[QAIPv4Addr.String()]
require.NotNil(t, qaBarNetworkPolicy)
require.Len(t, qaBarNetworkPolicy.IngressPerPortPolicies, 1)
expectedIngressPolicy := &cilium.PortNetworkPolicy{
Port: 80,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
L7: &PNPAllowGETbar,
},
},
}
require.Equal(t, expectedIngressPolicy, qaBarNetworkPolicy.IngressPerPortPolicies[0])
// Allocate identities needed for this test
qaFooLbls := labels.Labels{lblFoo.Key: lblFoo, lblQA.Key: lblQA}
qaFooID, _, err := ds.d.identityAllocator.AllocateIdentity(context.Background(), qaFooLbls, true, identity.InvalidIdentity)
require.NoError(t, err)
defer ds.d.identityAllocator.Release(context.Background(), qaFooID, false)
// Regenerate endpoint
ds.regenerateEndpoint(t, eQABar)
// Check that the policy has been updated in the xDS cache for the L7
// proxies. The plumbing of the identity when `AllocateIdentity` is performed
// down to the `SelectorCache` is asynchronous, so use waiting with a
// timeout.
err = testutils.WaitUntil(func() bool {
networkPolicies = ds.getXDSNetworkPolicies(t, nil)
if len(networkPolicies) != 2 {
return false
}
qaBarNetworkPolicy = networkPolicies[QAIPv4Addr.String()]
return qaBarNetworkPolicy != nil && len(qaBarNetworkPolicy.IngressPerPortPolicies) == 2
}, time.Second*1)
require.NoError(t, err)
require.EqualExportedValues(t, &cilium.NetworkPolicy{
EndpointIps: []string{QAIPv6Addr.String(), QAIPv4Addr.String()},
EndpointId: uint64(eQABar.ID),
ConntrackMapName: "global",
IngressPerPortPolicies: []*cilium.PortNetworkPolicy{
{
Port: 0,
Protocol: envoy_config_core.SocketAddress_TCP,
Rules: []*cilium.PortNetworkPolicyRule{
{
RemotePolicies: []uint32{uint32(qaFooID.ID)},
},