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partitions_connect_test.go
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partitions_connect_test.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package partitions
import (
"context"
"fmt"
"strconv"
"testing"
terratestk8s "github.com/gruntwork-io/terratest/modules/k8s"
"github.com/hashicorp/consul-k8s/acceptance/framework/consul"
"github.com/hashicorp/consul-k8s/acceptance/framework/helpers"
"github.com/hashicorp/consul-k8s/acceptance/framework/k8s"
"github.com/hashicorp/consul-k8s/acceptance/framework/logger"
"github.com/hashicorp/consul/api"
"github.com/hashicorp/consul/sdk/testutil/retry"
"github.com/stretchr/testify/require"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
const StaticClientName = "static-client"
const staticServerName = "static-server"
const staticServerNamespace = "ns1"
const StaticClientNamespace = "ns2"
// Test that Connect works in a default and ACLsEnabled installations for X-Partition and in-partition networking.
func TestPartitions_Connect(t *testing.T) {
env := suite.Environment()
cfg := suite.Config()
// TODO: We are monitoring that NET-5819 is fixed, if this test is still flaking in CNI, re-enable this skip
//if cfg.EnableCNI {
// t.Skipf("TODO(flaky): NET-5819")
//}
if !cfg.EnableEnterprise {
t.Skipf("skipping this test because -enable-enterprise is not set")
}
const defaultPartition = "default"
const secondaryPartition = "secondary"
const defaultNamespace = "default"
cases := []struct {
name string
destinationNamespace string
mirrorK8S bool
ACLsEnabled bool
}{
{
"default destination namespace",
defaultNamespace,
false,
false,
},
{
"default destination namespace; ACLs enabled",
defaultNamespace,
false,
true,
},
{
"single destination namespace",
staticServerNamespace,
false,
false,
},
{
"single destination namespace; ACLs enabled",
staticServerNamespace,
false,
true,
},
{
"mirror k8s namespaces",
staticServerNamespace,
true,
false,
},
{
"mirror k8s namespaces; ACLs enabled",
staticServerNamespace,
true,
true,
},
}
for _, c := range cases {
t.Run(c.name, func(t *testing.T) {
defaultPartitionClusterContext := env.DefaultContext(t)
secondaryPartitionClusterContext := env.Context(t, 1)
commonHelmValues := map[string]string{
"global.adminPartitions.enabled": "true",
"global.enableConsulNamespaces": "true",
"global.logLevel": "debug",
"global.tls.enabled": "true",
"global.tls.httpsOnly": strconv.FormatBool(c.ACLsEnabled),
"global.acls.manageSystemACLs": strconv.FormatBool(c.ACLsEnabled),
"connectInject.enabled": "true",
// When mirroringK8S is set, this setting is ignored.
"connectInject.consulNamespaces.consulDestinationNamespace": c.destinationNamespace,
"connectInject.consulNamespaces.mirroringK8S": strconv.FormatBool(c.mirrorK8S),
"meshGateway.enabled": "true",
"meshGateway.replicas": "1",
"dns.enabled": "true",
"dns.enableRedirection": strconv.FormatBool(cfg.EnableTransparentProxy),
}
// Setup the default partition
defaultPartitionHelmValues := make(map[string]string)
// On Kind, there are no load balancers but since all clusters
// share the same node network (docker bridge), we can use
// a NodePort service so that we can access node(s) in a different Kind cluster.
if cfg.UseKind {
defaultPartitionHelmValues["meshGateway.service.type"] = "NodePort"
defaultPartitionHelmValues["meshGateway.service.nodePort"] = "30200" // todo: do we need to set this port?
defaultPartitionHelmValues["server.exposeService.type"] = "NodePort"
defaultPartitionHelmValues["server.exposeService.nodePort.https"] = "30000"
defaultPartitionHelmValues["server.exposeService.nodePort.grpc"] = "30100"
}
releaseName := helpers.RandomName()
helpers.MergeMaps(defaultPartitionHelmValues, commonHelmValues)
// Install the consul cluster with servers in the default kubernetes context.
serverConsulCluster := consul.NewHelmCluster(t, defaultPartitionHelmValues, defaultPartitionClusterContext, cfg, releaseName)
serverConsulCluster.Create(t)
// Copy secrets from the default partition to the secondary partition
// Get the TLS CA certificate and key secret from the server cluster and apply it to the client cluster.
caCertSecretName := fmt.Sprintf("%s-consul-ca-cert", releaseName)
logger.Logf(t, "retrieving ca cert secret %s from the server cluster and applying to the client cluster", caCertSecretName)
k8s.CopySecret(t, defaultPartitionClusterContext, secondaryPartitionClusterContext, caCertSecretName)
partitionToken := fmt.Sprintf("%s-consul-partitions-acl-token", releaseName)
if c.ACLsEnabled {
logger.Logf(t, "retrieving partition token secret %s from the server cluster and applying to the client cluster", partitionToken)
k8s.CopySecret(t, defaultPartitionClusterContext, secondaryPartitionClusterContext, partitionToken)
}
partitionServiceName := fmt.Sprintf("%s-consul-expose-servers", releaseName)
partitionSvcAddress := k8s.ServiceHost(t, cfg, defaultPartitionClusterContext, partitionServiceName)
k8sAuthMethodHost := k8s.KubernetesAPIServerHost(t, cfg, secondaryPartitionClusterContext)
// Create secondary partition cluster.
secondaryPartitionHelmValues := map[string]string{
"global.enabled": "false",
"global.adminPartitions.name": secondaryPartition,
"global.tls.caCert.secretName": caCertSecretName,
"global.tls.caCert.secretKey": "tls.crt",
"externalServers.enabled": "true",
"externalServers.hosts[0]": partitionSvcAddress,
"externalServers.tlsServerName": "server.dc1.consul",
}
if c.ACLsEnabled {
// Setup partition token and auth method host if ACLs enabled.
secondaryPartitionHelmValues["global.acls.bootstrapToken.secretName"] = partitionToken
secondaryPartitionHelmValues["global.acls.bootstrapToken.secretKey"] = "token"
secondaryPartitionHelmValues["externalServers.k8sAuthMethodHost"] = k8sAuthMethodHost
}
if cfg.UseKind {
secondaryPartitionHelmValues["externalServers.httpsPort"] = "30000"
secondaryPartitionHelmValues["externalServers.grpcPort"] = "30100"
secondaryPartitionHelmValues["meshGateway.service.type"] = "NodePort"
secondaryPartitionHelmValues["meshGateway.service.nodePort"] = "30200"
}
helpers.MergeMaps(secondaryPartitionHelmValues, commonHelmValues)
// Install the consul cluster without servers in the client cluster kubernetes context.
clientConsulCluster := consul.NewHelmCluster(t, secondaryPartitionHelmValues, secondaryPartitionClusterContext, cfg, releaseName)
clientConsulCluster.Create(t)
defaultPartitionClusterStaticServerOpts := &terratestk8s.KubectlOptions{
ContextName: defaultPartitionClusterContext.KubectlOptions(t).ContextName,
ConfigPath: defaultPartitionClusterContext.KubectlOptions(t).ConfigPath,
Namespace: staticServerNamespace,
}
defaultPartitionClusterStaticClientOpts := &terratestk8s.KubectlOptions{
ContextName: defaultPartitionClusterContext.KubectlOptions(t).ContextName,
ConfigPath: defaultPartitionClusterContext.KubectlOptions(t).ConfigPath,
Namespace: StaticClientNamespace,
}
secondaryPartitionClusterStaticServerOpts := &terratestk8s.KubectlOptions{
ContextName: secondaryPartitionClusterContext.KubectlOptions(t).ContextName,
ConfigPath: secondaryPartitionClusterContext.KubectlOptions(t).ConfigPath,
Namespace: staticServerNamespace,
}
secondaryPartitionClusterStaticClientOpts := &terratestk8s.KubectlOptions{
ContextName: secondaryPartitionClusterContext.KubectlOptions(t).ContextName,
ConfigPath: secondaryPartitionClusterContext.KubectlOptions(t).ConfigPath,
Namespace: StaticClientNamespace,
}
logger.Logf(t, "creating namespaces %s and %s in servers cluster", staticServerNamespace, StaticClientNamespace)
k8s.RunKubectl(t, defaultPartitionClusterContext.KubectlOptions(t), "create", "ns", staticServerNamespace)
k8s.RunKubectl(t, defaultPartitionClusterContext.KubectlOptions(t), "create", "ns", StaticClientNamespace)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.RunKubectl(t, defaultPartitionClusterContext.KubectlOptions(t), "delete", "ns", staticServerNamespace, StaticClientNamespace)
})
logger.Logf(t, "creating namespaces %s and %s in clients cluster", staticServerNamespace, StaticClientNamespace)
k8s.RunKubectl(t, secondaryPartitionClusterContext.KubectlOptions(t), "create", "ns", staticServerNamespace)
k8s.RunKubectl(t, secondaryPartitionClusterContext.KubectlOptions(t), "create", "ns", StaticClientNamespace)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.RunKubectl(t, secondaryPartitionClusterContext.KubectlOptions(t), "delete", "ns", staticServerNamespace, StaticClientNamespace)
})
consulClient, _ := serverConsulCluster.SetupConsulClient(t, c.ACLsEnabled)
serverQueryServerOpts := &api.QueryOptions{Namespace: staticServerNamespace, Partition: defaultPartition}
clientQueryServerOpts := &api.QueryOptions{Namespace: StaticClientNamespace, Partition: defaultPartition}
serverQueryClientOpts := &api.QueryOptions{Namespace: staticServerNamespace, Partition: secondaryPartition}
clientQueryClientOpts := &api.QueryOptions{Namespace: StaticClientNamespace, Partition: secondaryPartition}
if !c.mirrorK8S {
serverQueryServerOpts = &api.QueryOptions{Namespace: c.destinationNamespace, Partition: defaultPartition}
clientQueryServerOpts = &api.QueryOptions{Namespace: c.destinationNamespace, Partition: defaultPartition}
serverQueryClientOpts = &api.QueryOptions{Namespace: c.destinationNamespace, Partition: secondaryPartition}
clientQueryClientOpts = &api.QueryOptions{Namespace: c.destinationNamespace, Partition: secondaryPartition}
}
// Check that the ACL token is deleted.
if c.ACLsEnabled {
// We need to register the cleanup function before we create the deployments
// because golang will execute them in reverse order i.e. the last registered
// cleanup function will be executed first.
t.Cleanup(func() {
if c.ACLsEnabled {
retry.Run(t, func(r *retry.R) {
tokens, _, err := consulClient.ACL().TokenList(serverQueryServerOpts)
require.NoError(r, err)
for _, token := range tokens {
require.NotContains(r, token.Description, staticServerName)
}
tokens, _, err = consulClient.ACL().TokenList(clientQueryServerOpts)
require.NoError(r, err)
for _, token := range tokens {
require.NotContains(r, token.Description, StaticClientName)
}
tokens, _, err = consulClient.ACL().TokenList(serverQueryClientOpts)
require.NoError(r, err)
for _, token := range tokens {
require.NotContains(r, token.Description, staticServerName)
}
tokens, _, err = consulClient.ACL().TokenList(clientQueryClientOpts)
require.NoError(r, err)
for _, token := range tokens {
require.NotContains(r, token.Description, StaticClientName)
}
})
}
})
}
// Create a ProxyDefaults resource to configure services to use the mesh
// gateways.
logger.Log(t, "creating proxy-defaults config")
kustomizeDir := "../fixtures/bases/mesh-gateway"
k8s.KubectlApplyK(t, defaultPartitionClusterContext.KubectlOptions(t), kustomizeDir)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.KubectlDeleteK(t, defaultPartitionClusterContext.KubectlOptions(t), kustomizeDir)
})
k8s.KubectlApplyK(t, secondaryPartitionClusterContext.KubectlOptions(t), kustomizeDir)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.KubectlDeleteK(t, secondaryPartitionClusterContext.KubectlOptions(t), kustomizeDir)
})
// This section of the tests runs the in-partition networking tests.
t.Run("in-partition", func(t *testing.T) {
logger.Log(t, "test in-partition networking")
logger.Log(t, "creating static-server and static-client deployments in server cluster")
k8s.DeployKustomize(t, defaultPartitionClusterStaticServerOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-server-inject")
if cfg.EnableTransparentProxy {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-tproxy")
} else {
if c.destinationNamespace == defaultNamespace {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-inject")
} else {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-namespaces")
}
}
logger.Log(t, "creating static-server and static-client deployments in client cluster")
k8s.DeployKustomize(t, secondaryPartitionClusterStaticServerOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-server-inject")
if cfg.EnableTransparentProxy {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-tproxy")
} else {
if c.destinationNamespace == defaultNamespace {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-inject")
} else {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-namespaces")
}
}
// Check that both static-server and static-client have been injected and now have 2 containers in server cluster.
for _, labelSelector := range []string{"app=static-server", "app=static-client"} {
podList, err := defaultPartitionClusterContext.KubernetesClient(t).CoreV1().Pods(metav1.NamespaceAll).List(context.Background(), metav1.ListOptions{
LabelSelector: labelSelector,
})
require.NoError(t, err)
require.Len(t, podList.Items, 1)
require.Len(t, podList.Items[0].Spec.Containers, 2)
}
// Check that both static-server and static-client have been injected and now have 2 containers in client cluster.
for _, labelSelector := range []string{"app=static-server", "app=static-client"} {
podList, err := secondaryPartitionClusterContext.KubernetesClient(t).CoreV1().Pods(metav1.NamespaceAll).List(context.Background(), metav1.ListOptions{
LabelSelector: labelSelector,
})
require.NoError(t, err)
require.Len(t, podList.Items, 1)
require.Len(t, podList.Items[0].Spec.Containers, 2)
}
// Make sure that services are registered in the correct namespace.
// If mirroring is enabled, we expect services to be registered in the
// Consul namespace with the same name as their source
// Kubernetes namespace.
// If a single destination namespace is set, we expect all services
// to be registered in that destination Consul namespace.
// Server cluster.
services, _, err := consulClient.Catalog().Service(staticServerName, "", serverQueryServerOpts)
require.NoError(t, err)
require.Len(t, services, 1)
services, _, err = consulClient.Catalog().Service(StaticClientName, "", clientQueryServerOpts)
require.NoError(t, err)
require.Len(t, services, 1)
// Client cluster.
services, _, err = consulClient.Catalog().Service(staticServerName, "", serverQueryClientOpts)
require.NoError(t, err)
require.Len(t, services, 1)
services, _, err = consulClient.Catalog().Service(StaticClientName, "", clientQueryClientOpts)
require.NoError(t, err)
require.Len(t, services, 1)
if c.ACLsEnabled {
logger.Log(t, "checking that the connection is not successful because there's no intention")
if cfg.EnableTransparentProxy {
k8s.CheckStaticServerConnectionFailing(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.%s", staticServerNamespace))
k8s.CheckStaticServerConnectionFailing(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.%s", staticServerNamespace))
} else {
k8s.CheckStaticServerConnectionFailing(t, defaultPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
k8s.CheckStaticServerConnectionFailing(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
}
intention := &api.ServiceIntentionsConfigEntry{
Kind: api.ServiceIntentions,
Name: staticServerName,
Namespace: staticServerNamespace,
Sources: []*api.SourceIntention{
{
Name: StaticClientName,
Namespace: StaticClientNamespace,
Action: api.IntentionActionAllow,
},
},
}
// Set the destination namespace to be the same
// unless mirrorK8S is true.
if !c.mirrorK8S {
intention.Namespace = c.destinationNamespace
intention.Sources[0].Namespace = c.destinationNamespace
}
logger.Log(t, "creating intention")
_, _, err := consulClient.ConfigEntries().Set(intention, &api.WriteOptions{Partition: defaultPartition})
require.NoError(t, err)
_, _, err = consulClient.ConfigEntries().Set(intention, &api.WriteOptions{Partition: secondaryPartition})
require.NoError(t, err)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
_, err := consulClient.ConfigEntries().Delete(api.ServiceIntentions, staticServerName, &api.WriteOptions{Partition: defaultPartition})
require.NoError(t, err)
_, err = consulClient.ConfigEntries().Delete(api.ServiceIntentions, staticServerName, &api.WriteOptions{Partition: secondaryPartition})
require.NoError(t, err)
})
}
logger.Log(t, "checking that connection is successful")
if cfg.EnableTransparentProxy {
k8s.CheckStaticServerConnectionSuccessful(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.%s", staticServerNamespace))
k8s.CheckStaticServerConnectionSuccessful(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.%s", staticServerNamespace))
} else {
k8s.CheckStaticServerConnectionSuccessful(t, defaultPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
k8s.CheckStaticServerConnectionSuccessful(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
}
// Test that kubernetes readiness status is synced to Consul.
// Create the file so that the readiness probe of the static-server pod fails.
logger.Log(t, "testing k8s -> consul health checks sync by making the static-server unhealthy")
k8s.RunKubectl(t, defaultPartitionClusterStaticServerOpts, "exec", "deploy/"+staticServerName, "-c", "static-server", "--", "touch", "/tmp/unhealthy")
k8s.RunKubectl(t, secondaryPartitionClusterStaticServerOpts, "exec", "deploy/"+staticServerName, "-c", "static-server", "--", "touch", "/tmp/unhealthy")
// The readiness probe should take a moment to be reflected in Consul, CheckStaticServerConnection will retry
// until Consul marks the service instance unavailable for mesh traffic, causing the connection to fail.
// We are expecting a "connection reset by peer" error because in a case of health checks,
// there will be no healthy proxy host to connect to. That's why we can't assert that we receive an empty reply
// from server, which is the case when a connection is unsuccessful due to intentions in other tests.
logger.Log(t, "checking that connection is unsuccessful")
if cfg.EnableTransparentProxy {
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, defaultPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.%s", staticServerNamespace))
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.%s", staticServerNamespace))
} else {
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, defaultPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server"}, "", "http://localhost:1234")
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server"}, "", "http://localhost:1234")
}
})
// This section of the tests runs the cross-partition networking tests.
t.Run("cross-partition", func(t *testing.T) {
logger.Log(t, "test cross-partition networking")
logger.Log(t, "creating static-server and static-client deployments in server cluster")
k8s.DeployKustomize(t, defaultPartitionClusterStaticServerOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-server-inject")
if cfg.EnableTransparentProxy {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-tproxy")
} else {
if c.destinationNamespace == defaultNamespace {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-partitions/default-ns-partition")
} else {
k8s.DeployKustomize(t, defaultPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-partitions/ns-partition")
}
}
logger.Log(t, "creating static-server and static-client deployments in client cluster")
k8s.DeployKustomize(t, secondaryPartitionClusterStaticServerOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-server-inject")
if cfg.EnableTransparentProxy {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-tproxy")
} else {
if c.destinationNamespace == defaultNamespace {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-partitions/default-ns-default-partition")
} else {
k8s.DeployKustomize(t, secondaryPartitionClusterStaticClientOpts, cfg.NoCleanupOnFailure, cfg.NoCleanup, cfg.DebugDirectory, "../fixtures/cases/static-client-partitions/ns-default-partition")
}
}
// Check that both static-server and static-client have been injected and now have 2 containers in server cluster.
for _, labelSelector := range []string{"app=static-server", "app=static-client"} {
podList, err := defaultPartitionClusterContext.KubernetesClient(t).CoreV1().Pods(metav1.NamespaceAll).List(context.Background(), metav1.ListOptions{
LabelSelector: labelSelector,
})
require.NoError(t, err)
require.Len(t, podList.Items, 1)
require.Len(t, podList.Items[0].Spec.Containers, 2)
}
// Check that both static-server and static-client have been injected and now have 2 containers in client cluster.
for _, labelSelector := range []string{"app=static-server", "app=static-client"} {
podList, err := secondaryPartitionClusterContext.KubernetesClient(t).CoreV1().Pods(metav1.NamespaceAll).List(context.Background(), metav1.ListOptions{
LabelSelector: labelSelector,
})
require.NoError(t, err)
require.Len(t, podList.Items, 1)
require.Len(t, podList.Items[0].Spec.Containers, 2)
}
// Make sure that services are registered in the correct namespace.
// If mirroring is enabled, we expect services to be registered in the
// Consul namespace with the same name as their source
// Kubernetes namespace.
// If a single destination namespace is set, we expect all services
// to be registered in that destination Consul namespace.
// Server cluster.
// We are going to test that static-clients deployed in each partition can
// access the static-servers running in another partition.
// ie default -> secondary and secondary -> default.
services, _, err := consulClient.Catalog().Service(staticServerName, "", serverQueryServerOpts)
require.NoError(t, err)
require.Len(t, services, 1)
services, _, err = consulClient.Catalog().Service(StaticClientName, "", clientQueryServerOpts)
require.NoError(t, err)
require.Len(t, services, 1)
// Client cluster.
services, _, err = consulClient.Catalog().Service(staticServerName, "", serverQueryClientOpts)
require.NoError(t, err)
require.Len(t, services, 1)
services, _, err = consulClient.Catalog().Service(StaticClientName, "", clientQueryClientOpts)
require.NoError(t, err)
require.Len(t, services, 1)
logger.Log(t, "creating exported services")
if c.destinationNamespace == defaultNamespace {
k8s.KubectlApplyK(t, defaultPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/default-partition-default")
k8s.KubectlApplyK(t, secondaryPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/secondary-partition-default")
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.KubectlDeleteK(t, defaultPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/default-partition-default")
k8s.KubectlDeleteK(t, secondaryPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/secondary-partition-default")
})
} else {
k8s.KubectlApplyK(t, defaultPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/default-partition-ns1")
k8s.KubectlApplyK(t, secondaryPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/secondary-partition-ns1")
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
k8s.KubectlDeleteK(t, defaultPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/default-partition-ns1")
k8s.KubectlDeleteK(t, secondaryPartitionClusterContext.KubectlOptions(t), "../fixtures/cases/crd-partitions/secondary-partition-ns1")
})
}
if c.ACLsEnabled {
logger.Log(t, "checking that the connection is not successful because there's no intention")
if cfg.EnableTransparentProxy {
if !c.mirrorK8S {
k8s.CheckStaticServerConnectionFailing(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionFailing(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, defaultPartition))
} else {
k8s.CheckStaticServerConnectionFailing(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionFailing(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, defaultPartition))
}
} else {
k8s.CheckStaticServerConnectionFailing(t, defaultPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
k8s.CheckStaticServerConnectionFailing(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
}
intention := &api.ServiceIntentionsConfigEntry{
Name: staticServerName,
Kind: api.ServiceIntentions,
Namespace: staticServerNamespace,
Sources: []*api.SourceIntention{
{
Name: StaticClientName,
Namespace: StaticClientNamespace,
Action: api.IntentionActionAllow,
},
},
}
// Set the destination namespace to be the same
// unless mirrorK8S is true.
if !c.mirrorK8S {
intention.Namespace = c.destinationNamespace
intention.Sources[0].Namespace = c.destinationNamespace
}
logger.Log(t, "creating intentions in each partition")
intention.Sources[0].Partition = secondaryPartition
_, _, err := consulClient.ConfigEntries().Set(intention, &api.WriteOptions{Partition: defaultPartition})
require.NoError(t, err)
intention.Sources[0].Partition = defaultPartition
_, _, err = consulClient.ConfigEntries().Set(intention, &api.WriteOptions{Partition: secondaryPartition})
require.NoError(t, err)
helpers.Cleanup(t, cfg.NoCleanupOnFailure, cfg.NoCleanup, func() {
_, err := consulClient.ConfigEntries().Delete(api.ServiceIntentions, staticServerName, &api.WriteOptions{Partition: defaultPartition})
require.NoError(t, err)
_, err = consulClient.ConfigEntries().Delete(api.ServiceIntentions, staticServerName, &api.WriteOptions{Partition: secondaryPartition})
require.NoError(t, err)
})
}
logger.Log(t, "checking that connection is successful")
if cfg.EnableTransparentProxy {
if !c.mirrorK8S {
k8s.CheckStaticServerConnectionSuccessful(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionSuccessful(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, defaultPartition))
} else {
k8s.CheckStaticServerConnectionSuccessful(t, defaultPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionSuccessful(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, defaultPartition))
}
} else {
k8s.CheckStaticServerConnectionSuccessful(t, defaultPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
k8s.CheckStaticServerConnectionSuccessful(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, "http://localhost:1234")
}
// Test that kubernetes readiness status is synced to Consul.
// Create the file so that the readiness probe of the static-server pod fails.
logger.Log(t, "testing k8s -> consul health checks sync by making the static-server unhealthy")
k8s.RunKubectl(t, defaultPartitionClusterStaticServerOpts, "exec", "deploy/"+staticServerName, "-c", "static-server", "--", "touch", "/tmp/unhealthy")
k8s.RunKubectl(t, secondaryPartitionClusterStaticServerOpts, "exec", "deploy/"+staticServerName, "-c", "static-server", "--", "touch", "/tmp/unhealthy")
// The readiness probe should take a moment to be reflected in Consul, CheckStaticServerConnection will retry
// until Consul marks the service instance unavailable for mesh traffic, causing the connection to fail.
// We are expecting a "connection reset by peer" error because in a case of health checks,
// there will be no healthy proxy host to connect to. That's why we can't assert that we receive an empty reply
// from server, which is the case when a connection is unsuccessful due to intentions in other tests.
logger.Log(t, "checking that connection is unsuccessful")
if cfg.EnableTransparentProxy {
if !c.mirrorK8S {
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, defaultPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", c.destinationNamespace, defaultPartition))
} else {
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, defaultPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, secondaryPartition))
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server", "curl: (7) Failed to connect to static-server.ns1 port 80: Connection refused"}, "", fmt.Sprintf("http://static-server.virtual.%s.ns.%s.ap.dc1.dc.consul", staticServerNamespace, defaultPartition))
}
} else {
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, defaultPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server"}, "", "http://localhost:1234")
k8s.CheckStaticServerConnectionMultipleFailureMessages(t, secondaryPartitionClusterStaticClientOpts, StaticClientName, false, []string{"curl: (56) Recv failure: Connection reset by peer", "curl: (52) Empty reply from server"}, "", "http://localhost:1234")
}
})
})
}
}