reference
https://kubernetes.io/docs/concepts/services-networking/ingress/
https://github.com/kubernetes/ingress-nginx
Installation
ingress的安裝很簡單,只需從github上將配置文件下載下來執行即可。
由於我這邊使用的k8s版本爲1.8.1,對安全要求較爲嚴格,因此需要rbac配置。
curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/namespace.yaml \
| kubectl apply -f -
curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/configmap.yaml \
| kubectl apply -f -
curl https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/rbac.yaml \
| kubectl apply -f -
wget https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/with-rbac.yaml
對with-rbac.yaml
稍作修改,如下:
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-ingress-controller
namespace: ingress-nginx
spec:
replicas: 1
selector:
matchLabels:
app: ingress-nginx
template:
metadata:
labels:
app: ingress-nginx
annotations:
prometheus.io/port: '10254'
prometheus.io/scrape: 'true'
nginx.ingress.kubernetes.io/ssl-redirect: "false"
spec:
serviceAccountName: nginx-ingress-serviceaccount
containers:
- name: nginx-ingress-controller
image: quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.11.0
args:
- /nginx-ingress-controller
- --default-backend-service=default/nginx
- --configmap=$(POD_NAMESPACE)/nginx-configuration
- --annotations-prefix=nginx.ingress.kubernetes.io
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
ports:
- name: http
containerPort: 80
- name: https
containerPort: 443
livenessProbe:
...
這裏去掉了 --tcp-services-configmap
和--udp-services-configmap
(因爲暫時沒有4層代理的需求),同時修改了默認的backend
爲 service nginx
。
修改好後,執行kubectl apply -f with-rbac.yaml
.
[root@walker-1 ingress]# kubectl get po -n ingress-nginx
NAME READY STATUS RESTARTS AGE
nginx-ingress-controller-5d795779d-hhns9 1/1 Running 0 1d
由此ingress 安裝完成。
Usage
to be continue…