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http_tls.go
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http_tls.go
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// Copyright 2022 Chaos Mesh Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package httpchaos
import (
"context"
"crypto/tls"
"crypto/x509"
"embed"
"encoding/json"
"fmt"
"net/http"
"os"
"os/exec"
"time"
. "github.com/onsi/ginkgo/v2"
v1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
"k8s.io/kubernetes/test/e2e/framework"
"sigs.k8s.io/controller-runtime/pkg/client"
"github.com/chaos-mesh/chaos-mesh/api/v1alpha1"
"github.com/chaos-mesh/chaos-mesh/e2e-test/e2e/util"
)
//go:embed keys
var content embed.FS
type TLSServerKeys struct {
Cert []byte `json:"cert"`
Key []byte `json:"key"`
}
func setupHTTPS(cli *http.Client, serverIP string) (TLSServerKeys, []byte) {
c, err := content.ReadDir("keys")
framework.ExpectNoError(err, "read key dir error")
var key []byte
var ca []byte
for _, f := range c {
if f.IsDir() {
continue
}
b, err := content.ReadFile("keys/" + f.Name())
framework.ExpectNoError(err, "read key file error")
switch f.Name() {
case "server.key":
key = b
case "ca.crt":
ca = b
}
err = os.WriteFile(f.Name(), b, 0644)
framework.ExpectNoError(err, "write key file error")
}
f, err := os.OpenFile("server.ext", os.O_APPEND|os.O_WRONLY, 0644)
if err != nil {
framework.ExpectNoError(err, "open server.ext file error")
}
if _, err = f.WriteString(fmt.Sprint("IP.1 = " + serverIP)); err != nil {
framework.ExpectNoError(err, "write server.ext file error")
}
err = f.Close()
framework.ExpectNoError(err, "close server.ext file error")
cmdStr := "openssl x509 -req -in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out server.crt -days 3650 -sha256 -extfile server.ext"
cmd := exec.Command("bash", "-c", cmdStr)
output, err := cmd.CombinedOutput()
if err != nil {
framework.ExpectNoError(err, "run openssl cmd error: "+string(output))
}
crt, err := os.ReadFile("server.crt")
framework.ExpectNoError(err, "read server.crt file error")
roots := x509.NewCertPool()
caPk, err := os.ReadFile("ca.crt")
if err != nil {
panic(err)
}
ok := roots.AppendCertsFromPEM(caPk)
framework.ExpectEqual(ok, true, "failed to parse root certificate")
cli.Transport = &http.Transport{
TLSClientConfig: &tls.Config{
RootCAs: roots,
},
}
return TLSServerKeys{
Cert: crt,
Key: key,
}, ca
}
func TestcaseHttpTLSThenRecover(
ns string,
kubeCli kubernetes.Interface,
cli client.Client,
c HTTPE2EClient,
port uint16,
tlsPort uint16,
) {
serverKeys, ca := setupHTTPS(c.C, c.IP)
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
By("waiting on e2e helper ready")
err := util.WaitHTTPE2EHelperReady(*c.C, c.IP, port)
framework.ExpectNoError(err, "wait e2e helper ready error")
By("create http delay chaos CRD objects")
body, err := json.Marshal(serverKeys)
framework.ExpectNoError(err, "marshal server keys error")
err = util.SetupHTTPE2EHelperTLSConfig(*c.C, c.IP, port, tlsPort, body)
framework.ExpectNoError(err, "setup e2e helper tls config error")
delay := "1ms"
_, err = kubeCli.CoreV1().Secrets(ns).Create(ctx, &v1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: "http-tls",
Namespace: ns,
},
Data: map[string][]byte{
"ca.crt": ca,
"server.crt": serverKeys.Cert,
"server.key": serverKeys.Key,
},
}, metav1.CreateOptions{})
framework.ExpectNoError(err, "create secret error")
caName := "ca.crt"
httpChaos := &v1alpha1.HTTPChaos{
ObjectMeta: metav1.ObjectMeta{
Name: "http-chaos",
Namespace: ns,
},
Spec: v1alpha1.HTTPChaosSpec{
PodSelector: v1alpha1.PodSelector{
Selector: v1alpha1.PodSelectorSpec{
GenericSelectorSpec: v1alpha1.GenericSelectorSpec{
Namespaces: []string{ns},
LabelSelectors: map[string]string{"app": "http"},
},
},
Mode: v1alpha1.OneMode,
},
Port: 8081,
Target: "Request",
PodHttpChaosActions: v1alpha1.PodHttpChaosActions{
Delay: &delay,
},
TLS: &v1alpha1.PodHttpChaosTLS{
SecretName: "http-tls",
SecretNamespace: ns,
CertName: "server.crt",
KeyName: "server.key",
CAName: &caName,
},
},
}
err = cli.Create(ctx, httpChaos)
framework.ExpectNoError(err, "create http chaos error")
By("waiting for HTTP pong")
err = wait.PollImmediate(1*time.Second, 1*time.Minute, func() (bool, error) {
err := util.WaitHTTPE2EHelperTLSReady(*c.C, c.IP, tlsPort)
if err != nil {
return false, err
}
return true, nil
})
framework.ExpectNoError(err, "http chaos doesn't work as expected")
By("apply http chaos successfully")
By("delete chaos CRD objects")
// delete chaos CRD
err = cli.Delete(ctx, httpChaos)
framework.ExpectNoError(err, "failed to delete http chaos")
}