Deploy PHP application with Redis - Kubernetes

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I need to deploy a PHP application with Redis. I have the following requirements:

  1. Single Redis Instance to store entries
  2. Replicated Redis instances for entry reads
  3. instances for frontend instances
Can somebody help me with this?
Thanks in advance!
Oct 23 in Kubernetes by Hannah
• 16,720 points
33 views

1 answer to this question.

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Hi, @Hannah, Follow these steps:

1. Create a Kubernetes cluster: https://www.edureka.co/blog/install-kubernetes-on-ubuntu

2. Set up the Redis master: https://www.edureka.co/community/58783/deployment-controller-single-replica-redis-master-kubernetes

3. Apply the redis master deployment

kubectl apply -f https://k8s.io/examples/application/guestbook/redis-master-deployment.yaml

4. Create Redis master service: https://www.edureka.co/community/58785/application-communication-with-the-redis-master

5. Apply the service:

kubectl apply -f https://k8s.io/examples/application/guestbook/redis-master-service.yaml

6. Create slave deployments, if needed

application/guestbook/redis-slave-deployment.yaml 

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
          # Using `GET_HOSTS_FROM=dns` requires your cluster to
          # provide a dns service. As of Kubernetes 1.3, DNS is a built-in
          # service launched automatically. However, if the cluster you are using
          # does not have a built-in DNS service, you can instead
          # access an environment variable to find the master
          # service's host. To do so, comment out the 'value: dns' line above, and
          # uncomment the line below:
          # value: env
        ports:
        - containerPort: 6379

7. Deploy the application frontend

8. View the application through load balancer

kubectl get service frontend

answered Oct 23 by Eric

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