TheK8sBook icon indicating copy to clipboard operation
TheK8sBook copied to clipboard

Published 20 hours ago • verified publisher icon nigelpoulton

Chapter 5 app connection refused

Open Muswell opened this issue 3 years ago • 0 comments

In the chapter on namespaces I'm running into problems getting the-bus app to accept a curl request. Everything seems to match the output from the examples in the book with the exception of the ServiceAccounts last-applied-configuration warning when applying shield-app.yml. If I go into the pod and install curl I get a response when hitting localhost. Any idea what I'm doing wrong or how I can troubleshoot?

kubectl version Client: v1.21 Server: v1.21

k3d version k3d version v4.4.7 k3s version v1.21.2-k3s1 (default)

kubectl apply -f shield-app.yml
Warning: resource serviceaccounts/default is missing the kubectl.kubernetes.io/last-applied-configuration annotation which is required by kubectl apply. kubectl apply should only be used on resources created declaratively by either kubectl create --save-config or kubectl apply. The missing annotation will be patched automatically.
serviceaccount/default configured
service/the-bus created
pod/triskelion created

kubectl get pods -n shield
NAME         READY   STATUS    RESTARTS   AGE
triskelion   1/1     Running   0          117s

kubectl get svc -n shield
NAME      TYPE       CLUSTER-IP      EXTERNAL-IP   PORT(S)          AGE
the-bus   NodePort   10.43.196.219   <none>        8080:31112/TCP   2m51s

kubectl describe svc -n shield
Name:                     the-bus
Namespace:                shield
Labels:                   <none>
Annotations:              <none>
Selector:                 env=marvel
Type:                     NodePort
IP Family Policy:         SingleStack
IP Families:              IPv4
IP:                       10.43.196.219
IPs:                      10.43.196.219
Port:                     <unset>  8080/TCP
TargetPort:               8080/TCP
NodePort:                 <unset>  31112/TCP
Endpoints:                10.42.1.3:8080
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   <none>

curl localhost:31112
curl: (7) Failed to connect to localhost port 31112: Connection refused

kubectl exec -it triskelion -n shield -- sh
/usr/src/app # curl localhost:8080
<!DOCTYPE html>
<html>
<head>
    <title>AOS</title>
    <link rel="stylesheet" type="text/css" href="/css/main.css">
    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Ubuntu:300" >
</head>
<body>

  <div class="main">
    <img src="/images/image.png"/>
    <div class="content">
      <div id="message">
  Agents of S.H.I.E.L.D
</div>
<div id="info">
  <table>
    <tr>
      <th>Pod/container/host that serviced this request:</th>
      <td>triskelion</td>
    </tr>
  </table>

</div>
    </div>
  </div>

</body>
</html>

Muswell avatar Jul 21 '21 00:07 Muswell