安装cert-manager
使用Helm安装
helm repo add jetstack https://charts.jetstack.io
helm repo update
helm upgrade --install cert-manager jetstack/cert-manager \
--namespace cert-manager \
--create-namespace \
--set installCRDs=true
如果通过helm命令安装失败，可以先下载，再按照
wget https://charts.jetstack.io/charts/cert-manager-v1.16.1.tgz
k8s原生安装
参考https://cert-manager.io/docs/installation/
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.16.1/cert-manager.yaml
安装EMQX Operator
helm repo add emqx https://repos.emqx.io/charts
helm repo update
helm upgrade --install emqx-operator emqx/emqx-operator \
--namespace emqx-operator-system \
--create-namespace
安装后，查下安装结果
kubectl get all -n emqx-operator-system
出现下载镜像失败ImagePullBackOff的状态，说明下载不到国外的镜像，需要寻找国内镜像源。使用以下命令查询具体是哪些镜像下载失败
kubectl describe pod emqx-operator-controller-manager-6d6d5f9684-rhd7f -n emqx-operator-system
下载镜像，并上传到k8s的各个节点后，再次执行helm安装命令
docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/emqx/emqx-operator-controller:2.2.25
docker tag swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/emqx/emqx-operator-controller:2.2.25 emqx/emqx-operator-controller:2.2.25
docker save -o emqx.tar emqx/emqx-operator-controller:2.2.25
scp emqx.tar root@10.0.2.12:/root
ssh root@10.0.2.12
docker load -i emqx.tar
等待 EMQX Operator 就绪
kubectl wait --for=condition=Ready pods -l "control-plane=controller-manager" -n emqx-operator-system
#输出
pod/emqx-operator-controller-manager-6d6d5f9684-rhd7f condition met
安装 EMQX
apiVersion: v1
kind: Namespace
metadata:
name: ns-emqx
---
apiVersion: apps.emqx.io/v2beta1
kind: EMQX
metadata:
name: emqx
namespace: ns-emqx
spec:
image: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/emqx/emqx:5.8.1
查看 EMQX 的 k8s service
kubectl get svc -n ns-emqx
上面这种方式部署的一个无头服务的EMQX。下面通过 LoadBalancer 访问 EMQX 集群
apiVersion: v1
kind: Namespace
metadata:
name: ns-emqx
---
apiVersion: apps.emqx.io/v2beta1
kind: EMQX
metadata:
name: emqx
namespace: ns-emqx
spec:
image: swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/emqx/emqx:5.8.1
listenersServiceTemplate:
spec:
type: LoadBalancer
dashboardServiceTemplate:
spec:
type: LoadBalancer
再次查看 EMQX 的 k8s service
kubectl get svc -n ns-emqx
结果
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
emqx-dashboard NodePort 10.100.118.67 <none> 18083:31321/TCP 19s
emqx-headless ClusterIP None <none> 4370/TCP,5369/TCP 40s
emqx-listeners NodePort 10.101.198.122 <none> 8883:31407/TCP,1883:31263/TCP,8083:31433/TCP,8084:32283/TCP 19s
EMQX Operator 会创建两个 EMQX Service 资源，一个是 emqx-dashboard，一个是 emqx-listeners，分别对应 EMQX 控制台和 EMQX 监听端口。
通过 NodeIP + 端口 就可以访问EMQX的控制台。这里是http://127.0.0.1:31321；用户和密码：admin/public。
