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Stefan Prodan
2018-03-26 00:43:55 +03:00
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@@ -13,14 +13,14 @@ a ClusterIP service that will get exposed on the internet.
What follows is a step-by-step guide on how you can use Ngrok as a reverse proxy to
receive GitHub notifications via webhooks in an application hosted on your local Minikube.
### Deploy podinfo demo app
### Deploy a webhook receiver
In order to receive notifications from GitHub you need a web application that exposes a
HTTP POST endpoint and accepts a JSON payload. [Podinfo](https://github.com/stefanprodan/k8s-podinfo)
is tiny web app made with Go that can receive any kind of payload on the `/echo` route.
is a tiny web app made with Go that can receive any kind of payload on the `/echo` route.
Let's deploy podinfo using Helm.
If you don't have Helm running on your Kubernetes cluster here how you can set it up.
If you don't have Helm running on your Kubernetes cluster here is how you can set it up.
First install Helm CLI:
@@ -48,26 +48,26 @@ Deploy Tiller in kube-system namespace:
helm init --skip-refresh --upgrade --service-account tiller
```
The podinfo and ngrok charts are hosted on GitHub. Add the k8s-podinfo repo:
The `podinfo` and `ngrok` charts are hosted on GitHub. Add the k8s-podinfo repo:
```bash
helm repo add sp https://stefanprodan.github.io/k8s-podinfo
```
Install podinfo:
Install `podinfo`:
```bash
helm install sp/podinfo --name webhook
```
This will deploy `podinfo` in the default namespace and
will create a ClusterIP service with the address `webhook-podinfo:9898`.
This deploys `podinfo` in the default namespace and
creates a ClusterIP service with the address `webhook-podinfo:9898`.
### Deploy Ngrok reverse proxy
### Deploy Ngrok
Before you begin go to [ngrok.com](https://ngrok.com) and register for a free account.
Ngrok will create a token for you, use it when installing Ngrok chart.
Ngrok will create a token for you, use it when installing the Ngrok chart.
Install Ngrok:
@@ -78,8 +78,8 @@ $ helm install sp/ngrok --name tunnel \
--set expose.service=webhook-podinfo:9898
```
The above command will deploy Ngrok and will expose the Ngrok web UI on a random node port.
Find the port with:
The above command deploys Ngrok in the default namespace and exposes the Ngrok web UI
on a random node port. Find the port with:
```bash
kubectl get --namespace default -o jsonpath="{.spec.ports[0].nodePort}" services tunnel-ngrok