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ACK (Alibaba Cloud)
APISIX ingress
Apache APISIX
Kubernetes ingress
Alibaba Cloud
Guide to install APISIX ingress controller on Alibaba Cloud Container Service for Kubernetes (ACK).

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.

:::