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Manage Ingress Controllers

Exposure (ingress) for all services (included exposure for platform services) is handeled by the default platform ingress class using a public (cloud) load balancer. It is also possible to use multiple ingress classes. Each class will get a dedicated ingress controller. In case of a security requirement, where platform services are not allowed to be exposed publicly, the default platform class can be configured to use a private load balancer instead of a public one by adding the required annotations. Additional (public) ingress classes can be created to expose team (application) services.

prerequisites​

  • Access to the internal subnet (using a VPN or a Jumphost) when using a private load balancer.

Steps​

Steps to change to use a private load balancer for exposing platform services:

If there are no Team services created that use the default platform class, then you can skip step 2.

Create an additional public ingress class​

  1. Go to Ingress Classes under Settings in the web UI.

  2. Under additional classes click on add item.

  3. Provide a name for the additional ingress class (for example teams).

  4. (optional) If you need to add specific annotations to Configure the Load Balancer by applying annotations to the Service resource, Click on Add Item and add the required annotations.

  5. (optional) If you would like to use a static (public) IP for the load balancer, then fill in the IP address.

  6. (optional) If you need to whitelist source IP address ranges, add the CIDR in the Source IP address filtering field.

  7. Click submit.

  8. Click Deploy Changes.

Move all existing Team Services to use the new ingress class​

  1. Go to services, click on the service you would like to move to the new ingress class.

  2. Under Exposure Ingress, fill in the name of the new ingress class in the ingress class name field.

  3. Click submit.

  4. Click Deploy Changes.

Change the platform class from public to private​

  1. Go to Ingress Classes under Settings in the web UI.

  2. Under Platform class, add the required annotations:

For Azure:

  • service.beta.kubernetes.io/azure-load-balancer-internal: "true"
  • service.beta.kubernetes.io/azure-load-balancer-internal-subnet: <lb-subnet>

For AWS:

  • service.beta.kubernetes.io/aws-load-balancer-internal: true

For GCP:

  • networking.gke.io/load-balancer-type: "Internal"

  1. Click submit.

  2. Click Deploy Changes.

Cloud provider specific annotations​

Add the following annotations when using:

AWS​

  • service.beta.kubernetes.io/aws-load-balancer-proxy-protocol: '*'

Azure​

  • service.beta.kubernetes.io/azure-load-balancer-resource-group: <resource-group-name>

Digital Ocean​

  • service.beta.kubernetes.io/do-loadbalancer-enable-proxy-protocol: true