better readability

This commit is contained in:
iwilltry42 2019-05-15 08:40:48 +02:00
parent 396e4dd196
commit 07febe44c0

View File

@ -48,69 +48,76 @@ Example Workflow: Create a new cluster and use it with `kubectl`
### Expose services
#### via Ingress
#### 1. via Ingress
1. Create a cluster, mapping the ingress port 80 to localhost:8081
`k3d create --api-port 6550 --publish 8081:80 --workers 2`
`k3d create --api-port 6550 --publish 8081:80 --workers 2`
2. Get the kubeconfig file
`export KUBECONFIG="$(k3d get-kubeconfig --name='k3s-default')"`
`export KUBECONFIG="$(k3d get-kubeconfig --name='k3s-default')"`
3. Create a nginx deployment
`kubectl create deployment nginx --image=nginx`
`kubectl create deployment nginx --image=nginx`
4. Create a ClusterIP service for it
`kubectl create service clusterip nginx --tcp=80:80`
`kubectl create service clusterip nginx --tcp=80:80`
5. Create an ingress object for it with `kubectl apply -f`
```YAML
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx
annotations:
ingress.kubernetes.io/ssl-redirect: "false"
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: nginx
servicePort: 80
```
```YAML
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx
annotations:
ingress.kubernetes.io/ssl-redirect: "false"
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: nginx
servicePort: 80
```
6. Curl it via localhost
`curl localhost:8081/`
### via NodePort
`curl localhost:8081/`
#### 2. via NodePort
1. Create a cluster, mapping the port 30080 from worker-0 to localhost:8082
`k3d create --publish 8082:30080@k3d-k3s-default-worker-0 --workers 2 -a 6550`
`k3d create --publish 8082:30080@k3d-k3s-default-worker-0 --workers 2 -a 6550`
... (Steps 2 and 3 like above) ...
4. Create a NodePort service for it with `kubectl apply -f`
```YAML
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: nginx
spec:
ports:
- name: 80-80
nodePort: 30080
port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
```
```YAML
apiVersion: v1
kind: Service
metadata:
labels:
app: nginx
name: nginx
spec:
ports:
- name: 80-80
nodePort: 30080
port: 80
protocol: TCP
targetPort: 80
selector:
app: nginx
type: NodePort
```
5. Curl it via localhost
`curl localhost:8082/`
`curl localhost:8082/`