update example ingress

k8s/jobs/service_with_ingress_nginx/README.md

@@ -0,0 +1,17 @@
+# Service with ingress nginx
+
+1. Install ingress nginx controller
+
+```
+kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/mandatory.yaml
+```
+
+https://kubernetes.github.io/ingress-nginx/deploy/
+
+2. Verify installation
+
+```
+kubectl get pods --all-namespaces -l app.kubernetes.io/name=ingress-nginx
+```
+
+

k8s/jobs/service_with_ingress_nginx/default.yaml

@@ -0,0 +1,20 @@
+--- 
+apiVersion: apps/v1
+kind: Deployment
+metadata: 
+  name: http-app
+spec: 
+  selector: 
+    matchLabels: 
+      app: http-server
+  template: 
+    metadata: 
+      labels: 
+        app: http-server
+    spec: 
+      containers: 
+        - 
+          args: 
+            - "-text=Hello world"
+          image: "hashicorp/http-echo:latest"
+          name: http-server

k8s/jobs/service_with_ingress_nginx/ingress.yaml

@@ -0,0 +1,14 @@
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: http-app-ingress
+  annotations:
+    kubernetes.io/ingress.class: "nginx" # ingress will scan it
+spec:
+  rules:
+  - http:
+      paths:
+      - path: /sub-path
+        backend:
+          serviceName: http-app-service
+          servicePort: 5678

k8s/jobs/service_with_ingress_nginx/service.yaml

@@ -0,0 +1,11 @@
+--- 
+apiVersion: v1
+kind: Service
+metadata: 
+  name: http-app-service
+spec: 
+  type: NodePort
+  ports: 
+    - port: 5678
+  selector: 
+    app: http-server

k8s/jobs/simple_http_server/README.md

@@ -0,0 +1,21 @@
+# Simple http server
+
+1. Apply deployment and service
+
+```
+kubectl apply ./
+```
+
+2. Expose the deployment to outside
+
+It's based on K8S environment. If we use minikube, please use:
+
+```
+minikube service http-app-service
+```
+
+3. Browse the cluster with exposed service IP
+
+```
+Hello world
+```

k8s/jobs/simple_http_server/default.yaml

@@ -0,0 +1,20 @@
+--- 
+apiVersion: apps/v1
+kind: Deployment
+metadata: 
+  name: http-app
+spec: 
+  selector: 
+    matchLabels: 
+      app: http-server
+  template: 
+    metadata: 
+      labels: 
+        app: http-server
+    spec: 
+      containers: 
+        - 
+          args: 
+            - "-text=Hello world"
+          image: "hashicorp/http-echo:latest"
+          name: http-server

k8s/jobs/simple_http_server/service.yaml

@@ -0,0 +1,11 @@
+--- 
+apiVersion: v1
+kind: Service
+metadata: 
+  name: http-app-service
+spec: 
+  type: NodePort
+  ports: 
+    - port: 5678
+  selector: 
+    app: http-server

k8s/setup/minikube.md

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+# Minikube
+
+## Installation
+
+Prerequirement:
+- hypervisor (KVM, virtual box)
+- docker
+
+https://minikube.sigs.k8s.io/docs/start/macos/
+
+Note:
+ - Sometime we need to restart to manachine to make hypervisor and minikube work together
+
+## Commands
+
+- Start minikube:
+
+```
+minikube start
+```
+
+- Check minikube status:
+
+```
+minikube status
+```
+
+- Start dashboard with minikube:
+
+```
+minikube dashboard
+```