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package main
import (
"fmt"
"os"
"github.com/edwarnicke/exechelper"
)
func testProxyHttpTcp(s *NsSuite, proto string) error {
var outputFile string = "test" + s.pid + ".data"
var srcFilePid string = "httpTestFile" + s.pid
const srcFileNoPid = "httpTestFile"
const fileSize string = "10M"
stopServer := make(chan struct{}, 1)
serverRunning := make(chan struct{}, 1)
serverNetns := s.getNetNamespaceByName("srv")
clientNetns := s.getNetNamespaceByName("cln")
// create test file
err := exechelper.Run(fmt.Sprintf("ip netns exec %s truncate -s %s %s", serverNetns, fileSize, srcFilePid))
s.assertNil(err, "failed to run truncate command: " + fmt.Sprint(err))
defer func() { os.Remove(srcFilePid) }()
s.log("test file created...")
go s.startHttpServer(serverRunning, stopServer, ":666", serverNetns)
// TODO better error handling and recovery
<-serverRunning
defer func(chan struct{}) {
stopServer <- struct{}{}
}(stopServer)
s.log("http server started...")
clientVeth := s.getInterfaceByName(clientInterface)
c := fmt.Sprintf("ip netns exec %s wget --no-proxy --retry-connrefused"+
" --retry-on-http-error=503 --tries=10 -O %s ", clientNetns, outputFile)
if proto == "tls" {
c += " --secure-protocol=TLSv1_3 --no-check-certificate https://"
}
c += fmt.Sprintf("%s:555/%s", clientVeth.ip4AddressString(), srcFileNoPid)
s.log(c)
_, err = exechelper.CombinedOutput(c)
defer func() { os.Remove(outputFile) }()
s.assertNil(err, "failed to run wget: '%s', cmd: %s", err, c)
stopServer <- struct{}{}
s.assertNil(assertFileSize(outputFile, srcFilePid))
return nil
}
func configureVppProxy(s *NsSuite, proto string) {
serverVeth := s.getInterfaceByName(serverInterface)
clientVeth := s.getInterfaceByName(clientInterface)
testVppProxy := s.getContainerByName("vpp").vppInstance
output := testVppProxy.vppctl(
"test proxy server server-uri %s://%s/555 client-uri tcp://%s/666",
proto,
clientVeth.ip4AddressString(),
serverVeth.peer.ip4AddressString(),
)
s.log("proxy configured...", output)
}
func (s *NsSuite) TestVppProxyHttpTcp() {
proto := "tcp"
configureVppProxy(s, proto)
err := testProxyHttpTcp(s, proto)
s.assertNil(err, err)
}
func (s *NsSuite) TestVppProxyHttpTls() {
proto := "tls"
configureVppProxy(s, proto)
err := testProxyHttpTcp(s, proto)
s.assertNil(err, err)
}
func configureEnvoyProxy(s *NsSuite) {
envoyContainer := s.getContainerByName("envoy")
err := envoyContainer.create()
s.assertNil(err, "Error creating envoy container: %s", err)
serverVeth := s.getInterfaceByName(serverInterface)
address := struct {
Server string
}{
Server: serverVeth.peer.ip4AddressString(),
}
envoyContainer.createConfig(
"/etc/envoy/envoy.yaml",
"resources/envoy/proxy.yaml",
address,
)
s.assertNil(envoyContainer.start())
}
func (s *NsSuite) TestEnvoyProxyHttpTcp() {
configureEnvoyProxy(s)
err := testProxyHttpTcp(s, "tcp")
s.assertNil(err, err)
}
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