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Installing Traefik

In this Lab you will install and configure Traefik to help with incomming (ingress) requests

Prerequisites:

  • Kubernetes Cluster (K3s in our Example)
    • Built in Traefik disabled
  • Rancher
  • MeatalLB installed and configured

Add Traefik Repo

1) Create traefik Namespace

2) Select Charts Repo

Select App & Marketplace -> Chart Repositories

3) Click Create to define a new Chart Repository

Name: Traefik
Index url: https://helm.traefik.io/traefik


You should see now see the Traefik Repo

Install Traefik

1) Select Traefik Chart

Select Chart 

You should now see the option to install traefik

2) Name Traefik

Select the Namespace traefik
Name the Deployment traefik

3) Modifiy the Values YAML section to

Enable ports->traefik->expose

    ports:
      traefik:
        expose: true
        exposedPort: 9000
        port: 9000
        protocol: TCP

4) Deploy Traefik

Locate Traefik IP address

1) Access kubectl

Access kubectl either Rancher interface (as shown) or from a terminal

2) Find traefik's IP address

kubectl get svc -A


This tells us Traefik is running on IP address 10.0.22.1

Access Traefik Dashboard

1) Open a broswer to 10.0.22.1:9000/dashboard/

Testing Traefik

Traefik using a Host name

1) config and verify DNS entry for who.{yourdomain}.com is pointing to the IP Address of your Traefik Service

    In my example I have who.wiredquill.com at 10.0.22.1

2) Deploy whoami app using Trafik host name

kubectl apply -f whoami-deploy-host.yaml

Example

namespace/who2 created
deployment.apps/whoami created
service/whoami created

3) Deploy Ingres Route Rule for host

kubectl apply -f whoami-IngresRoute-host.yaml

Example

ingressroute.traefik.containo.us/whoami created

4) View the change in Routers in the Traefik Dashboard

5) Test whoami App

Open a browser to http://who.wiredquill.com

Example

Hostname: whoami-6fb5b5d74d-4ghdb
IP: 127.0.0.1
IP: ::1
IP: 10.42.0.12
IP: fe80::94ea:30ff:fead:3a82
RemoteAddr: 10.42.0.11:34586
GET / HTTP/1.1
Host: who.wiredquill.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.15
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us
Upgrade-Insecure-Requests: 1
X-Forwarded-For: 10.42.0.1
X-Forwarded-Host: who.wiredquill.com
X-Forwarded-Port: 80
X-Forwarded-Proto: http
X-Forwarded-Server: traefik-10-1628783659-7976cbf877-mxfqs
X-Real-Ip: 10.42.0.1

Traefik using a Path

1) Deploy whoami app using Trafik host name

kubectl apply -f whoami-deploy-path.yaml

Example

namespace/who3 created
deployment.apps/whoami created
service/whoami created

2) Deploy Ingres Route Rule for host

kubectl apply -f whoami-IngresRoute-path.yaml

Example

ingressroute.traefik.containo.us/whoami created

3) View the change in Routers in the Traefik Dashboard

5) Test whoami App

Open a browser to the IP Addess of you Traefik service http://10.0.22.1/who

Example

Hostname: whoami-6fb5b5d74d-hcrhc
IP: 127.0.0.1
IP: ::1
IP: 10.42.0.13
IP: fe80::843e:58ff:fe0c:a720
RemoteAddr: 10.42.0.11:51434
GET /who HTTP/1.1
Host: 10.0.23.100
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Safari/605.1.15
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-us
Upgrade-Insecure-Requests: 1
X-Forwarded-For: 10.42.0.1
X-Forwarded-Host: 10.0.23.100
X-Forwarded-Port: 80
X-Forwarded-Proto: http
X-Forwarded-Server: traefik-10-1628783659-7976cbf877-mxfqs
X-Real-Ip: 10.42.0.1