Deploying PHP Guestbook application with Redis — Kubernetes-minikube

Objectives

mkdir guestbook-deployment-kubernetes
cd guestbook-deployment-kubernetes
subl .
apiVersion: apps/v1
kind: Deployment
metadata:
name: redis-master
labels:
app: redis
spec:
selector:
matchLabels:
app: redis
role: master
tier: backend
replicas: 1
template:
metadata:
labels:
app: redis
role: master
tier: backend
spec:
containers:
- name: master
image: k8s.gcr.io/redis:e2e # or just image: redis
resources:
requests:
cpu: 100m
memory: 100Mi
ports:
- containerPort: 6379
NAME                            READY     STATUS    RESTARTS   AGE
redis-master-1068406935-3lswp 1/1 Running 0 28s
apiVersion: v1
kind: Service
metadata:
name: redis-master
labels:
app: redis
role: master
tier: backend
spec:
ports:
- port: 6379
targetPort: 6379
selector:
app: redis
role: master
tier: backend
NAME           TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)    AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 1m
redis-master ClusterIP 10.0.0.151 <none> 6379/TCP 8s
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
name: redis-slave
labels:
app: redis
spec:
selector:
matchLabels:
app: redis
role: slave
tier: backend
replicas: 2
template:
metadata:
labels:
app: redis
role: slave
tier: backend
spec:
containers:
- name: slave
image: gcr.io/google_samples/gb-redisslave:v3
resources:
requests:
cpu: 100m
memory: 100Mi
env:
- name: GET_HOSTS_FROM
value: dns
ports:
- containerPort: 6379
NAME                            READY     STATUS              RESTARTS   AGE
redis-master-1068406935-3lswp 1/1 Running 0 1m
redis-slave-2005841000-fpvqc 0/1 ContainerCreating 0 6s
redis-slave-2005841000-phfv9 0/1 ContainerCreating 0 6s
apiVersion: v1
kind: Service
metadata:
name: redis-slave
labels:
app: redis
role: slave
tier: backend
spec:
ports:
- port: 6379
selector:
app: redis
role: slave
tier: backend
NAME           TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)    AGE
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 2m
redis-master ClusterIP 10.0.0.151 <none> 6379/TCP 1m
redis-slave ClusterIP 10.0.0.223 <none> 6379/TCP 6s
apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
name: frontend
labels:
app: guestbook
spec:
selector:
matchLabels:
app: guestbook
tier: frontend
replicas: 3
template:
metadata:
labels:
app: guestbook
tier: frontend
spec:
containers:
- name: php-redis
image: gcr.io/google-samples/gb-frontend:v4
resources:
requests:
cpu: 100m
memory: 100Mi
env:
- name: GET_HOSTS_FROM
value: dns
ports:
- containerPort: 80
NAME                        READY     STATUS    RESTARTS   AGE
frontend-3823415956-dsvc5 1/1 Running 0 54s
frontend-3823415956-k22zn 1/1 Running 0 54s
frontend-3823415956-w9gbt 1/1 Running 0 54s
apiVersion: v1
kind: Service
metadata:
name: frontend
labels:
app: guestbook
tier: frontend
spec:
type: NodePort
ports:
- port: 80
selector:
app: guestbook
tier: frontend
NAME           TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)        AGE
frontend NodePort 10.0.0.112 <none> 80:31323/TCP 6s
kubernetes ClusterIP 10.0.0.1 <none> 443/TCP 4m
redis-master ClusterIP 10.0.0.151 <none> 6379/TCP 2m
redis-slave ClusterIP 10.0.0.223 <none> 6379/TCP 1m
NAME                            READY     STATUS    RESTARTS   AGE
frontend-3823415956-70qj5 1/1 Running 0 5s
frontend-3823415956-dsvc5 1/1 Running 0 54m
frontend-3823415956-k22zn 1/1 Running 0 54m
frontend-3823415956-w9gbt 1/1 Running 0 54m
frontend-3823415956-x2pld 1/1 Running 0 5s
redis-master-1068406935-3lswp 1/1 Running 0 56m
redis-slave-2005841000-fpvqc 1/1 Running 0 55m
redis-slave-2005841000-phfv9 1/1 Running 0 55m
NAME                            READY     STATUS    RESTARTS   AGE
frontend-3823415956-k22zn 1/1 Running 0 1h
frontend-3823415956-w9gbt 1/1 Running 0 1h
redis-master-1068406935-3lswp 1/1 Running 0 1h
redis-slave-2005841000-fpvqc 1/1 Running 0 1h
redis-slave-2005841000-phfv9 1/1 Running 0 1h
  kubectl delete deployment -l app=redis
kubectl delete service -l app=redis
kubectl delete deployment -l app=guestbook
kubectl delete service -l app=guestbook
  deployment.apps "redis-master" deleted
deployment.apps "redis-slave" deleted
service "redis-master" deleted
service "redis-slave" deleted
deployment.apps "frontend" deleted
service "frontend" deleted

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Software Engineer — Openshift CoreOS

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Ayesha Kaleem

Ayesha Kaleem

Software Engineer — Openshift CoreOS

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