Secure Kubernetes Gateway

• Go to Site Type Selection section` and perform the following:
  • Select a region in the AWS Region drop-down field. This example selects us-east-2.
  • Select New VPC Parameters for the Select existing VPC or create new VPC field. Enter the name tag in the AWS VPC Name Tag field and enter the CIDR in the Primary IPv4 CIDR blocks field.
  • Select Ingress/Egress Gateway (Two Interface) for the Select Ingress Gateway or Ingress/Egress Gateway field.

• Click Configure to open the two-interface node configuration wizard.

• Click Add Item and enter the configuration using the following guidelines.

  • Select an option for the AWS AZ name field that matches the configured AWS Region.
  • Select New Subnet for the Select Existing Subnet or Create New field in the Subnet for Inside Interface section. Enter a subnet address in the IPv4 Subnet field.
  • Similarly configure a subnet address for the Subnet for Outside Interface section.
  • Click Add Item to complete the two-interface node configuration.

• Go to Site Network Firewall section and select Active Firewall Policies for the Manage Firewall Policy field. Click on the List of Firewall Policy field and select Create new Firewall Policy. Enter the configuration using the following guidelines:

  • Enter a name and enter a CIDR for the IPv4 Prefix List field. This CIDR should be within the CIDR block of the VPC.

• Click Configure under Ingress Rules in the Connections To Policy Endpoints section.
• Click `Add Item' to add an ingress rule, and enter the following configuration:
  • Set a name for the Rule Name field and select Allow for the Action field.
  • Select Any Endpoint for the Select Other Endpoint field.
  • Select Match Protocol and Port Ranges for the Select Type of Traffic to Match field.
  • Select TCP for the Protocol field.
  • Click Add item under List of Port Ranges, and then enter a port range.
  • Click the Add Item button at the bottom to save the ingress rule, and then click Apply to complete the ingress rules configuration.

• Click Configure under Egress Rules in the Connections To Policy Endpoints section.
• Click Add Item to add an egress rule to the Egress Rules list, and enter the following configuration:
  • Set a name for the Rule Name field and select Deny for the Action field. This example configures a deny rule for Google DNS query traffic.
  • Select IPv4 Prefix List for the Select Other Endpoint field and enter 8.8.4.4/32 for the IPv4 Prefix List field.
  • Select Match Application Traffic for the Select Type of Traffic to Match field.
  • Select DNS for the Application Protocols field.
  • Click the Add Item button at the bottom to save the egress rule.

• Click Add item and configure another rule of type allow for the endpoint prefix 8.8.8.8/32. This is another Google DNS endpoint prefix.
  • Select Match Application Traffic for the Select Type of Traffic to Match field.
  • Select DNS for the Application Protocols field.
  • Click the Add Item button at the bottom to save the egress rule.
• Click Add item and configure another rule with Allow action to allow rest of all egress TCP traffic. Click the Add Item button at the bottom to save the egress rule.

• Click Apply.

• Click Continue to apply the network policy configuration.

• Select Enable Forward Proxy and Mange Policies for the Manage Forward Proxy Policy field. Click on the Select forward proxy policy field and select Create new forward proxy policy. Enter the configuration using the following guidelines:

  • Enter a name and select All Proxies on Site for the Select Forward Proxy field.
  • Select Allowed connections for the Select Policy Rules section.
  • Click Add Item under the TLS Domains field. Select Exact Value from the drop-down list of the Enter Domain field and enter gitlab.com for the Exact Value field. Click Add item to add this domain to the TLS Domains list. Repeat this step for each of
  • Repeat the step above for github.com.
  • Repeat the step again for each of the following domains with the Suffix Value type.
    • gcr.io
    • storage.googleapis.com
    • docker.io
    • docker.com
    • amazonaws.com

Note: The Allowed connections option allows the configured TLS domains and HTTP URLs. Everything else is denied.

• Click Continue to apply the forward proxy policy configuration.

• Enable Show Advanced Fields in the Advanced Options section.
• Select Manage Static Routes for the Manage Static Routes for Inside Network field, and then click Add Item to add a route to the List of Static Routes.
  • Select Simple Static Route for the Static Route Config Mode field.
  • Enter a route for your EKS subnet in the Simple Static Route field.
  • Click Add Item to save the route to the list.

• Click Apply to save the ingress/egress configuration and return to the AWS VPC site configuration screen.

• Select Automatic Deployment for the Select Automatic or Assisted Deployment field.
• Select the AWS credentials created in Step 1.1 for the Automatic Deployment field.
• Select an instance type for the node for the AWS Instance Type for Node field in the Site Node Parameters section.
• Enter your public SSH key in the Public SSH key field. This is required to access the site once it is deployed.

• Click Save and Exit to complete creating the AWS VPC object. The AWS VPC site object gets displayed.

Download the latest quick start utility:

docker pull gcr.io/volterraio/volt-terraform

Download the deployment script:

docker run --rm -v ${pwd}:/opt/bin:rw gcr.io/volterraio/volt-terraform:latest cp /deploy-terraform.sh /opt/bin

{
    "access_key": "<aws_access_key>",
    "secret_key": "<aws_secret_key>",
    "region": "us-east-2",
    "vpc_id": "vpc-0e43d54a516883bf1,
    "deployment": "eks-skg",
    "eks_cidr": "192.168.1.0/24",
    "volterra_site_name": "aws-skg",
    "machine_public_key": "<pub-key>"
}

./deploy-terraform.sh apply -p aws -i <tfvars> -tn self-serve/eks_only 

Note: The deployment approximately takes 10 to 15 minutes to complete.

• After the deployment is complete, download the kubeconfig files of the created EKS cluster using the following commands:

 
./deploy-terraform.sh output -n eks-skg eks_kubeconfig > /tmp/eks-test
 

• Set the KUBECONFIG environment variable with the downloaded kubeconfig file.

export KUBECONFIG=/tmp/eks-test

• Verify that the EKS worker node joined the cluster and pods are deployed on the K8s namespace. Enter the following commands:

kubectl get node -o wide

kubectl get pods -n hipster

Note: The deployment creates hipster K8s namespace.

• Enter a name for your load balancer in the metadata section.
• Enter a domain name in the Domains field. Ensure that its sub-domain is delegated to Distributed Cloud Services. This example sets skg.quickstart.distribugteappsonvolt.org domain. The skg part is a prefix and the quickstart.distribugteappsonvolt.org part is a domain delegated that is already setup on this tenant.
• Select HTTPS with Automatic Certificate for the Select Type of Load Balancer field.

• Click Add Item in the Default Origin Servers section.

• Click Add item in the Origin Pools with Weight and Priority section. Use the Origin Pool pull-down to send and click Create new origin pool.

• In the pool creation form, enter a name for your pool in the metadata section.

• In the Basic Configuration section, click Add Item, Select K8s Service Name of Origin Server on given Sites,

• In the Select Type of Origin Server field of Basic Configuration section, select k8s Service Name of Origin Server on given Sites.

  • Enter service name in the <servivename.k8s-namespace> format for the Service Name field. This example sets frontend.hipster as the service name.
  • Select Site for the Site or Virtual Site field and select the site you created in Step 1.
  • Select Inside Network for the Select Network on the site field.
  • Click Apply to save the origin server.

  

• Enter 80 in the Port field.

• Click Continue to save the origin pool.

• Click Add Item to add the origin pool to the load balancer.

Scroll down and click Save and Exit to create load balancer. The load balancer object gets displayed with TLS Info field value as DNS Domain Verification. Wait for it to change to Certificate Valid.

The load balancer is now ready, and you can verify it by accessing the domain URL from a browser.