Deploying the Microgateway on a Kubernetes Cluster

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

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

   #Micro-gateway configurations
    
   #Define the number of gateways to be deployed
   replicaCount: 2
    
   namespace: name-of-the-namespace
    
   # 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: cloud-login-mail
       auth: Y2xvdWQtbG9naW4tZW1haWw6Y2xvdWQtcGFzc3dvcmQ=
    
   #Define the custom-URL of the microgateway service along with the certificate information
   ingress:
    host: microgateway.sample.com
       tls:
           tlsCertificate: certificate-of-the-hostname
           tlsKey: private-key-of-the-hostname
    
    
   ## Include the organization authentication information
   organizationDetails:
    tenantName: tenant-domain
       email: cloud-login-email
       password: cloud-password
    
   # Define the allocated resources per gateway
   resources:
    limits:
    cpu: 400m
        memory: 1024Mi
      requests:
    cpu: 400m
        memory: 1024Mi
   
   

3.  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.

4. 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, where you can find the hostname at the end:

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

5. Use the hostname that you obtain as the DNS record of your custom URL domain. 

Now that you have set up the DNS of your Microgateway custom URL, you can access the Microgateway via the Microgateway URL.