Deploying the Microgateway on a Kubernetes Cluster

You can easily deploy WSO2 API Microgateway on a Kubernetes cluster. Follow the step-by-step instructions below to quickly download, configure, and deploy the Microgateway on a Kubernetes cluster.

Before you begin,

Install and set up the Kubernetes command-line tool, kubectl. For detailed instructions on installing kubectl, see https://kubernetes.io/docs/tasks/tools/install-kubectl/.
Install Helm in your Kubernetes cluster using the helm init command. We recommend using the latest stable release of Helm. For detailed instructions on installing Helm, see https://helm.sh/docs/using_helm/#installing-helm.

Follow the steps in role based access control to ensure that you provide necessary permission to Tiller. This creates a service account for Tiller.

Download the Kubernetes Microgateway Helm chart ZIP file from here and extract it. Let's refer to the extracted Microgateway Helm chart directory location as <K8S_MICROGATEWAY_HOME> throughout this section.

Edit the <K8S_MICROGATEWAY_HOME>/values.yaml file and specify appropriate values to configure the Kubernetes Microgateway Helm chart.

values.yaml

# Micro-gateway configurations

#Define the number of gateways to be deployed
replicaCount: 2

#Define a namespace to deploy micro-gateways
#If you are not changing the below value microgateway will be deployed in a namespace called “wso2-microgateway” 
namespace: wso2-microgateway

# Define Docker credentials
# Use cloud login email as the email
# Use the value of Base64(cloud-email:cloud-password) as the auth value
auths:
  https://docker.cloud.wso2.com:
    email: wso2.microgateway@sample.com                                #FIX ME
    auth: d3NvMi5taWNyb2dhdGV3YXlAc2FtcGxlLmNvbTpwYXMkd29yZCEyMw==     #FIX ME

## Include the organization authentication information
organizationDetails:
    tenantName: myCompany                                            #FIX ME
    email: wso2.microgateway@sample.com                              #FIX ME
    password: pas$word!23                                            #FIX ME
    label: gateway_label                                             #FIX ME

#Define the custom-URL of the microgateway service along with the certificate information
#Please enter the values of a cert and a key of your domain in a one line as given by the sample below
#For testing purposes you can use the below details without any change
ingress:
    host: wso2-microgateway.sample.com                                #FIX ME
    tls:
        tlsCertificate: 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
        tlsKey: MIIEvgIBADANBgkqhkiG9w0BAQEFAASCBKgwggSkAgEAAoIBAQC6EmPU+PkZ20i+9PXaVa57lBxnlLa6yIzh7NIbaRBNh4jabhNJ2gP4wH1oJI4CwYzf4rqAlI1hzTT0rQJikbJi7fbB9elVVPxrGerL/uA10jWTPq5ynzEl7YyQQ6I2+UzHUDJ/gyGbzj5fk0lKlfhEUxqmxmRyuwlzswTl+iC1taujJmzfJ+osu9saxFDpLXnKBkRyYVBSudLYz1vmXQz7FXVmYAgIQZx0UG+7cx0G96wOemtdHcDxSRNy/usVrOdhqENHwnTulnlEJZMHYInuFEvDfOz5f3zrmTs0k1X+Nbb0sCTwMcxcrvoFsmc7FL0TAZuDvUaPrt+VkEU6CWrjAgMBAAECggEANvAzFbClK+M46Vi+NkbSC57BfDvGcAPCxPn9VyaAL8Pyvjt96nI6dfmvjU4tt9aZ14jD9C7oR5YlKpDigWPvPZJxJveKey1qkdzHHJAWdw2nz9/T9ffWtRIcTIQLoxucdcTSBCAdjjko5WNBYopBETtQRSmSguWCduzGZ3igq8WE+Md8hVsIxWlBYqGRMu+Uqhx7JcbqGYcTG8jaLhno9B0tDOQm8pV2KZpHfro9KnfKWrzlEW3cGLOyAkca6croYo8HqXGr/S+T3h8fHSdZEW1WoUf6X2v1ccoOT65rmplNEzgQhfYNZxXZ8dyKAFaHM19CD77m2VfDXCoBLK1RYQKBgQDjUmW0ZaMB2PRQBhzAexormTRK5/6Y2jdEyq0T5dnRmKNy/MyXWYgZibkA2TFIaHLHKuySBl5Tnj41cya+67UMtAUl/wLDmUGRe64XNe4xOkTzK8HOZAqUNfTQny2WkCWKxMpw0Uyao0zL8+udjqYgjzIQJql44Z6GpQFM5hvE6QKBgQDRi8dl1EGXfHl51I5S2dzouItqd9ziRu9ZjBw47wV6962AoB7VU5CRZwAYG7tPQHD8Pvuv0aRWnUPukE0OixrihHklX+j6TGue3QobvQo5QflPj8jvptzpX9bZASH3gvReFWwY2nZV4T34GE5DuMFiW3QG5E0pJhP9Vhf9B1jB6wKBgQChrphh/6w6Ayp5xG8sxCHwAo67/FgMNaD7z7/cmC4dspgGkCGgQHDZ4Sfxn4k6+/cvC6upjNgIV1PdxmI3hwSF3YCP7tnzbwzAwhwnrBcXcl9aKbQ17NfNZLcUrzLIlQvusFtgdK0si5tysLHTpYMpQ1ATRrxhGvAayj+rhzsXCQKBgEClyie9W1scGPIgRKSE+GWIAeMgBbJ9xfwvgMmD3IH6hbnILJsOA+0IBPxrGdeyfukjmUy99eCO9lVUiaFyAyJdUm7Yby1BhHZnpWW3Zb8SfpMwPgLJzR/m5IbglZUh/rhEDayBQb7vFcpD3WmBR5BLvLkfmDqYt9QRyqbSrGxvAoGBAJRrFw5Mg/ksp4jzQ9G7qZf0uImWlAq0mrXIIBlfoWkGuy2oqTtN542NqDoEUdpH3UwKaOQOVAriVoMvY8SwrOrh4O6K/KTknnaxo2gMFjgttEMzVZkRM5xsifLUB2ZaV0kK/eiEmdMUnEbuUb0+hzfS7D/Pt2qClSDlCk/rgNEJ


# Define the allocated resources per gateway
resources:
   limits:
     cpu: 400m
     memory: 1024Mi
   requests:
     cpu: 400m
     memory: 1024Mi

Navigate to the <K8S_MICROGATEWAY_HOME> directory using the command line and execute the following command to deploy the Microgateway in your Kubernetes cluster:
```
helm install --name micro-gateways-deployment .
```
This will set up the following deployment in your Kubernetes cluster:

Once you set up the deployment, you need to obtain the hostname of your Nginx load balancer and set it as the DNS of your Microgateway custom URL.

Execute the following command to obtain the hostname of the Nginx load balancer:

kubectl get svc micro-gateways-deployment-private-jet-mode-nginx-controller -o yaml

This provides an output similar to the following, which displays the hostname at the end:

...
loadBalancer:
    ingress:
    - hostname: abc2adaa290d711e994d802f89b5426a-1544968781.us-west-2.elb.amazonaws.com

Use the hostname obtained above as the DNS record of your custom URL domain.
Note
If you use the sample hostname given in the values.yaml file (i.e., wso2-microgateway.sample.com ), you need to add the following entry in the /etc/hosts file of your machine to access the Microgateway:
<> sample.com

Now that you have set up the DNS of your Microgateway custom URL, you can follow the steps here to test your Microgateway deployment.

Once you test the deployment, you can access the Microgateway via the Microgateway URL.