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Installing Traefik Enterprise Edition with Single Control Nodes on Kubernetes with YAML Files

This installation guide is for experts who want to fine-tune their TraefikEE (Traefik Enterprise Edition) installation.

It covers how to install TraefikEE as a Kubernetes Ingress Controller using Kubernetes YAML files .

Kubernetes Knowledge

Assistance with configuring or setting up a Kubernetes cluster is not included in this guide. If you need more information about Kubernetes, start with the following resources:

Requirements

  • The traefikeectl tool
  • A Kubernetes cluster:
    • Supported versions: 1.10, 1.11, 1.12 and 1.13
    • RBAC enabled (recommended),
    • Access to the Kubernetes API with kubectl, with the ability to create and manage namespaces and their resources.
  • Control node pod can reach https://v3.license.containous.cloud.

Create the Namespace

Create a namespace named traefikee to host the TraefikEE installation:

kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/namespace.yaml
namespace/traefikee created

Prepare Role Based Access Control (RBAC)

Create the RBAC objects to allow TraefikEE pods to interact with the Kubernetes API:

kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/rbac-singlecn.yaml
serviceaccount/traefikee created
clusterrole.rbac.authorization.k8s.io/traefikee-role created
clusterrolebinding.rbac.authorization.k8s.io/traefikee created
Note

The following Service Account is created:

  • serviceaccount/traefikee, to access the Kubernetes API actions required by TraefikEE.

Create the Service

Create the services to allow network access to the TraefikEE cluster:

kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/data-node-external-service.yaml
kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/control-node-internal-service.yaml
kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/cluster-internal-api-service.yaml
service "traefikee-lb" created
service "traefikee-control-nodes" created
service "traefikee-api" created
Note

The following services are created:

  • traefikee-lb handles the traffic of the ingress rules for your applications.
  • traefikee-control-nodes handles the traffic for control nodes internal communication.
  • traefikee-api handles the traffic for TraefikEE's API internal usage such as metric collection or Web UI.

Create the Control Node

Installing behind a proxy

In order to install a behind proxy, you must define the HTTP_PROXY, HTTPS_PROXY and NO_PROXY environment variables for the control node. As the control node will make requests to the kubernetes API server, the NO_PROXY variable must contain its IP address. It can be found using kubectl get service kubernetes.

containers:
  - name: ...
    # [...]
    env:
      - name: HTTP_PROXY
        value: http://127.0.0.1:3129 # Your HTTP proxy URL
      - name: HTTPS_PROXY
        value: http://127.0.0.1:3129 # Your HTTPS proxy URL
      - name: NO_PROXY
        value: 100.64.0.1 # IP of the kubernetes service

Download the file control-node-statefulset.yaml:

curl -sSLO \
  https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/control-node-statefulset.yaml
  • Insert your license key in the file control-node-statefulset.yaml:

    • Search for line --licensekey=fakeLicense
    • Replace the value fakeLicense with your license key
  • Save the file

Create a control node to initialize the cluster:

kubectl apply -f ./control-node-statefulset.yaml
statefulset.apps/traefikee-control-node created
Note

Alternatively, you can use an environment variable, and set the license key without changing the file:

export TRAEFIKEE_LICENSE_KEY="YOUR-LICENSE_KEY-VALUE"
curl -sSL https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/control-node-statefulset.yaml \
| sed "s/--licensekey=.*/--licensekey=${TRAEFIKEE_LICENSE_KEY}\"/g" \
| kubectl apply -f -

Connect traefikeectl to the New Cluster

About a minute after applying the control node statefulset, you should be able to connect to the cluster.

Configure traefikeectl to have access to the new cluster.

traefikeectl connect --kubernetes
Retrieving TraefikEE Control credentials...ok
Removing cluster credentials from platform...ok
Credentials saved in "$HOME/.config/traefikee/traefikee", please make sure to keep them safe as they can never be retrieved again.
✔ Successfuly gained access to the cluster. You can now use other traefikeectl commands.
In case of an error

If traefikeectl connect displays the following error: unable to retrieve API credentials, it might be because the control node isn't done creating your cluster yet. Wait a few seconds and try again.

One-time operation

When running traefikeectl connect, your credentials will be retrieved and it will not be possible to do it again in the future without re-installing a TraefikEE cluster. Remember to keep your credentials safe!

Check if the control node started correctly by listing the cluster nodes.

The control node's role should be CONTROL NODE, and its availability should be ACTIVE:

traefikeectl list-nodes
Name                                  Availability  Role          Leader
----                                  ------------  ----          ------
traefikee-control-node-0              ACTIVE        CONTROL NODE  YES

Create Data Nodes

Create the data nodes, to handle your application traffic:

kubectl apply -f https://s3.amazonaws.com/traefikee/examples/v1.1.1/kubernetes/one-cn/data-node-deployment.yaml
deployment.apps "traefikee-data-node" created

Verify that the 2 data nodes are running:

kubectl get pod --namespace=traefikee --selector='app=traefikee' --selector='component=data-nodes'
NAME                                   READY     STATUS    RESTARTS   AGE
traefikee-data-node-867cc84788-j78qg   1/1       Running   0          50s
traefikee-data-node-867cc84788-s9qwm   1/1       Running   0          50s

Validate that the TraefikEE cluster lists the 2 data nodes as members, with an availability status of "ACTIVE":

traefikeectl list-nodes
Name                                  Availability  Role          Leader
----                                  ------------  ----          ------
traefikee-control-node-0              ACTIVE        CONTROL NODE  YES
traefikee-data-node-867cc84788-j78qg  ACTIVE        DATA NODE
traefikee-data-node-867cc84788-j78qg  ACTIVE        DATA NODE

Backup your Installation

Don't forget to setup regular backups using the traefikeectl backup command. More information can be found in the backup and restore documentation.

What's Next?

Now that you have an up running cluster, you can configure your routing.