Could someone explain how to setup the external Ip on the 'frontend' service. I know that Vagrant don't support "type: LoadBalancer" and I don't know how to expose an Ip to my host. Thanks
Try type "NodePort" instead:
https://github.com/kubernetes/kubernetes/blob/master/docs/user-guide/services.md#type-nodeport
Then use the IP address(es) of your vagrant VM(s) at the allocated port.
First of all you should change your service type in the guestbook service definition:
diff --git a/guestbook-service.json b/guestbook-service.json
index cc7640e..fadef78 100644
--- a/guestbook-service.json
+++ b/guestbook-service.json
@@ -17,6 +17,6 @@
"selector":{
"app":"guestbook"
},
- "type": "LoadBalancer"
+ "type": "NodePort"
}
}
Then stop and restart the service with:
kubectl delete -f guestbook-service.json
kubectl create -f guestbook-service.jsonLook at your node IP address with:
kubectl get nodesFor example, for me this was the result:
$ kubectl get nodes
NAME LABELS STATUS AGE
172.17.4.99 kubernetes.io/hostname=172.17.4.99 Ready 3hFinally, you can find out your service nodeport with:
kubectl describe services guestbookFor example, for me this was the result:
$ kubectl describe services guestbook
Name: guestbook
Namespace: default
Labels: app=guestbook
Selector: app=guestbook
Type: NodePort
IP: 10.3.0.47
Port: <unnamed> 3000/TCP
NodePort: <unnamed> 32757/TCP
Endpoints: 10.2.76.12:3000,10.2.76.8:3000,10.2.76.9:3000
Session Affinity: None
No events.At this point, using the node IP you got earlier, and the NodePort you just found, you should be able to connect:
$ curl 172.17.4.99:32757
<!DOCTYPE html>
<html lang="en">
<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<meta charset="utf-8">
<meta content="width=device-width" name="viewport">
<link href="/style.css" rel="stylesheet">
<title>Guestbook</title>
[...]
Note: the NodePort is usually allocated from a flag-configured range, by default it is 30000-32767.