github/kubeshark
1
0
Fork 0
mirror of https://github.com/kubeshark/kubeshark.git synced 2025-08-16 15:38:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

TRA-3913 support mizu via expose service (#440)

Browse Source 
* 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
This commit is contained in:
RamiBerm 2021-11-08 11:23:03 +02:00 committed by GitHub
parent b7b012539d
commit 4cf3c9c6d3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 78 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
README.md
View File

@ -83,7 +83,7 @@ To tap all pods in current namespace -
```
To tap specific pod -
###To tap specific pod
```bash
$ kubectl get pods
NAME READY STATUS RESTARTS AGE
@ -96,7 +96,7 @@ To tap specific pod -
^C
```
To tap multiple pods using regex -
###To tap multiple pods using regex
```bash
$ kubectl get pods
NAME READY STATUS RESTARTS AGE
@ -111,6 +111,50 @@ To tap multiple pods using regex -
Web interface is now available at http://localhost:8899
^C
```
###To run mizu mizu daemon mode (detached from cli)
```bash
$ mizu tap "^ca.*" --daemon
Mizu will store up to 200MB of traffic, old traffic will be cleared once the limit is reached.
Tapping pods in namespaces "sock-shop"
Waiting for mizu to be ready... (may take a few minutes)
+carts-66c77f5fbb-fq65r
+catalogue-5f4cb7cf5-7zrmn
..
$ mizu view
Establishing connection to k8s cluster...
Mizu is available at http://localhost:8899
^C
..
$ mizu clean # mizu will continue running in cluster until clean is executed
Removing mizu resources
```
###To run mizu daemon mode with LoadBalancer kubernetes service
```bash
$ mizu tap "^ca.*" --daemon
Mizu will store up to 200MB of traffic, old traffic will be cleared once the limit is reached.
Tapping pods in namespaces "sock-shop"
Waiting for mizu to be ready... (may take a few minutes)
..
$ kubectl expose deployment -n mizu --port 80 --target-port 8899 mizu-api-server --type=LoadBalancer --name=mizu-lb
service/mizu-lb exposed
..
$ kubectl get services -n mizu
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
mizu-api-server ClusterIP 10.107.200.100 <none> 80/TCP 5m5s
mizu-lb LoadBalancer 10.107.200.101 34.77.120.116 80:30141/TCP 76s
```
Note that `LoadBalancer` services only work on supported clusters (usually cloud providers) and might incur extra costs
If you changed the `mizu-resources-namespace` value, make sure the `-n mizu` flag of the `kubectl expose` command is changed to the value of `mizu-resources-namespace`
mizu will now be available both by running `mizu view` or by accessing the `EXTERNAL-IP` of the `mizu-lb` service through your browser.
## Configuration

2
acceptanceTests/testsUtils.go
View File

@ -79,7 +79,7 @@ func getProxyUrl(namespace string, service string) string {
}
func getApiServerUrl(port uint16) string {
return fmt.Sprintf("http://localhost:%v/mizu", port)
return fmt.Sprintf("http://localhost:%v", port)
}
func getDefaultCommandArgs() []string {

1
shared/kubernetes/provider.go
View File

@ -320,7 +320,6 @@ func (provider *Provider) GetMizuApiServerPodObject(opts *ApiServerOptions, moun
return pod, nil
}
func (provider *Provider) CreatePod(ctx context.Context, namespace string, podSpec *core.Pod) (*core.Pod, error) {
return provider.clientSet.CoreV1().Pods(namespace).Create(ctx, podSpec, metav1.CreateOptions{})
}

15
shared/kubernetes/proxy.go
View File

@ -28,9 +28,9 @@ func StartProxy(kubernetesProvider *Provider, proxyHost string, mizuPort uint16,
return err
}
mux := http.NewServeMux()
mux.Handle(k8sProxyApiPrefix, proxyHandler)
mux.Handle(k8sProxyApiPrefix, getRerouteHttpHandlerMizuAPI(proxyHandler, mizuNamespace, mizuServiceName))
mux.Handle("/static/", getRerouteHttpHandlerMizuStatic(proxyHandler, mizuNamespace, mizuServiceName))
mux.Handle("/mizu/", getRerouteHttpHandlerMizuAPI(proxyHandler, mizuNamespace, mizuServiceName))
l, err := net.Listen("tcp", fmt.Sprintf("%s:%d", proxyHost, int(mizuPort)))
if err != nil {
@ -45,16 +45,21 @@ func StartProxy(kubernetesProvider *Provider, proxyHost string, mizuPort uint16,
}
func getMizuApiServerProxiedHostAndPath(mizuNamespace string, mizuServiceName string) string {
return fmt.Sprintf("/api/v1/namespaces/%s/services/%s:%d/proxy/", mizuNamespace, mizuServiceName, mizuServicePort)
return fmt.Sprintf("/api/v1/namespaces/%s/services/%s:%d/proxy", mizuNamespace, mizuServiceName, mizuServicePort)
}
func GetMizuApiServerProxiedHostAndPath(mizuPort uint16) string {
return fmt.Sprintf("localhost:%d/mizu", mizuPort)
return fmt.Sprintf("localhost:%d", mizuPort)
}
func getRerouteHttpHandlerMizuAPI(proxyHandler http.Handler, mizuNamespace string, mizuServiceName string) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.URL.Path = strings.Replace(r.URL.Path, "/mizu/", getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName), 1)
proxiedPath := getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName)
//avoid redirecting several times
if !strings.Contains(r.URL.Path, proxiedPath) {
r.URL.Path = fmt.Sprintf("%s%s", getMizuApiServerProxiedHostAndPath(mizuNamespace, mizuServiceName), r.URL.Path)
}
proxyHandler.ServeHTTP(w, r)
})
}

6
ui/src/helpers/api.js
View File

@ -1,16 +1,14 @@
import * as axios from "axios";
const mizuAPIPathPrefix = "/mizu";
// When working locally cp `cp .env.example .env`
export const MizuWebsocketURL = process.env.REACT_APP_OVERRIDE_WS_URL ? process.env.REACT_APP_OVERRIDE_WS_URL : `ws://${window.location.host}${mizuAPIPathPrefix}/ws`;
export const MizuWebsocketURL = process.env.REACT_APP_OVERRIDE_WS_URL ? process.env.REACT_APP_OVERRIDE_WS_URL : `ws://${window.location.host}/ws`;
export default class Api {
constructor() {
// When working locally cp `cp .env.example .env`
const apiURL = process.env.REACT_APP_OVERRIDE_API_URL ? process.env.REACT_APP_OVERRIDE_API_URL : `${window.location.origin}${mizuAPIPathPrefix}/`;
const apiURL = process.env.REACT_APP_OVERRIDE_API_URL ? process.env.REACT_APP_OVERRIDE_API_URL : `${window.location.origin}/`;
this.client = axios.create({
baseURL: apiURL,