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https://github.com/kubeshark/kubeshark.git
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4cf3c9c6d3
* Update README.md, tapRunner.go, and 4 more files... * Update testsUtils.go * Update proxy.go * Update README.md, testsUtils.go, and 3 more files... * Update testsUtils.go and provider.go
73 lines
2.5 KiB
Go
73 lines
2.5 KiB
Go
package kubernetes
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import (
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"fmt"
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"net"
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"net/http"
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"strings"
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"time"
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"github.com/up9inc/mizu/shared/logger"
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"k8s.io/kubectl/pkg/proxy"
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)
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const k8sProxyApiPrefix = "/"
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const mizuServicePort = 80
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func StartProxy(kubernetesProvider *Provider, proxyHost string, mizuPort uint16, mizuNamespace string, mizuServiceName string) error {
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logger.Log.Debugf("Starting proxy. namespace: [%v], service name: [%s], port: [%v]", mizuNamespace, mizuServiceName, mizuPort)
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filter := &proxy.FilterServer{
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AcceptPaths: proxy.MakeRegexpArrayOrDie(proxy.DefaultPathAcceptRE),
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RejectPaths: proxy.MakeRegexpArrayOrDie(proxy.DefaultPathRejectRE),
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AcceptHosts: proxy.MakeRegexpArrayOrDie("^.*"),
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RejectMethods: proxy.MakeRegexpArrayOrDie(proxy.DefaultMethodRejectRE),
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}
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proxyHandler, err := proxy.NewProxyHandler(k8sProxyApiPrefix, filter, &kubernetesProvider.clientConfig, time.Second*2)
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if err != nil {
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return err
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}
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mux := http.NewServeMux()
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mux.Handle(k8sProxyApiPrefix, getRerouteHttpHandlerMizuAPI(proxyHandler, mizuNamespace, mizuServiceName))
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mux.Handle("/static/", getRerouteHttpHandlerMizuStatic(proxyHandler, mizuNamespace, mizuServiceName))
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l, err := net.Listen("tcp", fmt.Sprintf("%s:%d", proxyHost, int(mizuPort)))
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if err != nil {
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return err
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}
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server := http.Server{
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Handler: mux,
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}
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return server.Serve(l)
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}
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func getMizuApiServerProxiedHostAndPath(mizuNamespace string, mizuServiceName string) string {
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return fmt.Sprintf("/api/v1/namespaces/%s/services/%s:%d/proxy", mizuNamespace, mizuServiceName, mizuServicePort)
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}
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func GetMizuApiServerProxiedHostAndPath(mizuPort uint16) string {
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return fmt.Sprintf("localhost:%d", mizuPort)
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}
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func getRerouteHttpHandlerMizuAPI(proxyHandler http.Handler, mizuNamespace string, mizuServiceName string) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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proxiedPath := getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName)
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//avoid redirecting several times
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if !strings.Contains(r.URL.Path, proxiedPath) {
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r.URL.Path = fmt.Sprintf("%s%s", getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName), r.URL.Path)
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}
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proxyHandler.ServeHTTP(w, r)
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})
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}
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func getRerouteHttpHandlerMizuStatic(proxyHandler http.Handler, mizuNamespace string, mizuServiceName string) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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r.URL.Path = strings.Replace(r.URL.Path, "/static/", fmt.Sprintf("%s/static/", getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName)), 1)
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proxyHandler.ServeHTTP(w, r)
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})
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}
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