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e2e_tcp_client_server_test.go
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e2e_tcp_client_server_test.go
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package e2e
import (
"context"
"fmt"
"strings"
"time"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"github.com/openservicemesh/osm/tests/framework"
. "github.com/openservicemesh/osm/tests/framework"
)
var _ = OSMDescribe("Test TCP traffic from 1 pod client -> 1 pod server",
OSMDescribeInfo{
Tier: 1,
Bucket: 8,
OS: OSCrossPlatform,
},
func() {
Context("SimpleClientServer TCP with SMI policies", func() {
testTCPTraffic(false)
})
Context("SimpleClientServer TCP in permissive mode", func() {
testTCPTraffic(true)
})
})
func testTCPTraffic(permissiveMode bool) {
var (
sourceNs = framework.RandomNameWithPrefix("client")
destNs = framework.RandomNameWithPrefix("server")
ns = []string{sourceNs, destNs}
)
It("Tests TCP traffic for client pod -> server pod", func() {
// Install OSM
installOpts := Td.GetOSMInstallOpts()
installOpts.EnablePermissiveMode = permissiveMode
Expect(Td.InstallOSM(installOpts)).To(Succeed())
// Load TCP server image
Expect(Td.LoadImagesToKind([]string{"tcp-echo-server"})).To(Succeed())
// Create Test NS
for _, n := range ns {
Expect(Td.CreateNs(n, nil)).To(Succeed())
Expect(Td.AddNsToMesh(true, n)).To(Succeed())
}
destinationPort := 80
// Get simple pod definitions for the TCP server
svcAccDef, podDef, svcDef, err := Td.GetOSSpecificTCPEchoPod(framework.RandomNameWithPrefix("pod"), destNs, destinationPort)
Expect(err).NotTo(HaveOccurred())
_, err = Td.CreateServiceAccount(destNs, &svcAccDef)
Expect(err).NotTo(HaveOccurred())
_, err = Td.CreatePod(destNs, podDef)
Expect(err).NotTo(HaveOccurred())
dstSvc, err := Td.CreateService(destNs, svcDef)
Expect(err).NotTo(HaveOccurred())
// Expect it to be up and running in it's receiver namespace
Expect(Td.WaitForPodsRunningReady(destNs, 120*time.Second, 1, nil)).To(Succeed())
srcPod := setupSource(sourceNs, false /* no kubernetes service for the client */)
trafficTargetName := "test-target"
trafficRouteName := "routes"
if !permissiveMode {
By("Creating SMI policies")
// Deploy allow rule client->server
tcpRoute, trafficTarget := Td.CreateSimpleTCPAllowPolicy(
SimpleAllowPolicy{
RouteGroupName: trafficRouteName,
TrafficTargetName: trafficTargetName,
SourceNamespace: srcPod.Namespace,
SourceSVCAccountName: srcPod.Spec.ServiceAccountName,
DestinationNamespace: destNs,
DestinationSvcAccountName: svcAccDef.Name,
},
destinationPort,
)
// Configs have to be put into a monitored NS
_, err = Td.CreateTCPRoute(destNs, tcpRoute)
Expect(err).NotTo(HaveOccurred())
_, err = Td.CreateTrafficTarget(destNs, trafficTarget)
Expect(err).NotTo(HaveOccurred())
}
// All ready. Expect client to reach server
requestMsg := "test request"
clientToServer := TCPRequestDef{
SourceNs: sourceNs,
SourcePod: srcPod.Name,
SourceContainer: srcPod.Name,
DestinationHost: fmt.Sprintf("%s.%s.svc.cluster.local", dstSvc.Name, dstSvc.Namespace),
DestinationPort: destinationPort,
Message: requestMsg,
}
srcToDestStr := fmt.Sprintf("%s -> %s:%d",
fmt.Sprintf("%s/%s", sourceNs, srcPod.Name),
clientToServer.DestinationHost, clientToServer.DestinationPort)
cond := Td.WaitForRepeatedSuccess(func() bool {
result := Td.TCPRequest(clientToServer)
if result.Err != nil {
Td.T.Logf("> (%s) TCP Req failed, response: %s, err: %s",
srcToDestStr, result.Response, result.Err)
return false
}
// Ensure the echo response contains request message
if !strings.Contains(result.Response, requestMsg) {
Td.T.Logf("> (%s) Unexpected response: %s.\n Response expected to contain: %s", srcToDestStr, result.Response, requestMsg)
return false
}
Td.T.Logf("> (%s) TCP Req succeeded, response: %s", srcToDestStr, result.Response)
return true
}, 5, Td.ReqSuccessTimeout)
Expect(cond).To(BeTrue(), "Failed testing TCP traffic from %s", srcToDestStr)
if !permissiveMode {
By("Deleting SMI policies")
Expect(Td.SmiClients.AccessClient.AccessV1alpha3().TrafficTargets(destNs).Delete(context.TODO(), trafficTargetName, metav1.DeleteOptions{})).To(Succeed())
Expect(Td.SmiClients.SpecClient.SpecsV1alpha4().TCPRoutes(destNs).Delete(context.TODO(), trafficRouteName, metav1.DeleteOptions{})).To(Succeed())
// Expect client not to reach server
cond = Td.WaitForRepeatedSuccess(func() bool {
result := Td.TCPRequest(clientToServer)
if result.Err == nil {
Td.T.Logf("> (%s) TCP Req did not fail, expected it to fail, response: %s", srcToDestStr, result.Response)
return false
}
Td.T.Logf("> (%s) TCP Req failed correctly, response: %s, err: %s", srcToDestStr, result.Response, result.Err)
return true
}, 5, 150*time.Second)
Expect(cond).To(BeTrue())
}
})
}