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ACK (Alibaba Cloud)

This document explains how you can install APISIX ingress on Alibaba Cloud Container Service for Kubernetes (ACK).

Prerequisites#

Setting up APISIX ingress on ACK requires the following:

Install APISIX and ingress controller#

The script below installs APISIX and the ingress controller:

helm repo add apisix https://charts.apiseven.com
helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update
kubectl create ns ingress-apisix
helm install apisix apisix/apisix \
--set gateway.type=LoadBalancer \
--set ingress-controller.enabled=true \
--set etcd.persistence.storageClass="alicloud-disk-ssd" \
--set etcd.persistence.size="20Gi" \
--namespace ingress-apisix \
--set ingress-controller.config.apisix.serviceNamespace=ingress-apisix
kubectl get service --namespace ingress-apisix
note

By default, APISIX ingress controller will watch the apiVersion of networking.k8s.io/v1.

If the target Kubernetes version is under v1.19, add the flag --set ingress-controller.config.kubernetes.ingressVersion=networking/v1beta1.

Else, if your Kubernetes cluster version is under v1.16, set the flag --set ingress-controller.config.kubernetes.ingressVersion=extensions/v1beta1.

This will create the five resources mentioned below:

  • apisix-gateway: dataplane the process the traffic.
  • apisix-admin: control plane that processes all configuration changes.
  • apisix-ingress-controller: ingress controller which exposes APISIX.
  • apisix-etcd and apisix-etcd-headless: stores configuration and handles internal communication.

The gateway service type will be set to LoadBalancer. See Use an existing SLB instance to expose an application for details on using a load balancer.

You can find the load balancer IP address by running:

kubectl get service apisix-gateway --namespace ingress-apisix -o jsonpath='{.status.loadBalancer.ingress[].ip}'

ACK PersistentVolume requires the minimum size of 20Gi using FlexVolume (select alicloud-disk-ssd)

ACK PV require min_size is 20Gi,cluster with flexVolume component select alicloud-disk-ssd. If you are using Helm, you can use this etcd configuration file:

etcd:
persistence:
storageClass: "alicloud-disk-ssd"
size: 20Gi

You should now be able to use APISIX ingress controller. You can try running this minimal example to see if everything is working perfectly.

Next steps#

Enable SSL#

SSL is disabled by default. You can enable it by adding the flag --set gateway.tls.enabled=true.

Change default keys#

It is recommended to change the default keys for security:

--set ingress-controller.config.apisix.adminKey=ADMIN_KEY_GENERATED_BY_YOURSELF
--set admin.credentials.admin=ADMIN_KEY_GENERATED_BY_YOURSELF
--set admin.credentials.viewer=VIEWER_KEY_GENERATED_BY_YOURSELF
note

The ingress-controller.config.apisix.adminKey and admin.credentials.admin must be the same. It is better if these are not same as admin.credentials.viewer.