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The DevOps 2.3 Toolkit

You're reading from   The DevOps 2.3 Toolkit Kubernetes: Deploying and managing highly-available and fault-tolerant applications at scale

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Product type Paperback
Published in Sep 2018
Publisher Packt
ISBN-13 9781789135503
Length 418 pages
Edition 1st Edition
Concepts
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Author (1):
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Viktor Farcic Viktor Farcic
Author Profile Icon Viktor Farcic
Viktor Farcic
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Toc

Table of Contents (18) Chapters Close

Preface 1. How Did We Get Here? FREE CHAPTER 2. Running Kubernetes Cluster Locally 3. Creating Pods 4. Scaling Pods With ReplicaSets 5. Using Services to Enable Communication between Pods 6. Deploying Releases with Zero-Downtime 7. Using Ingress to Forward Traffic 8. Using Volumes to Access Host's File System 9. Using ConfigMaps to Inject Configuration Files 10. Using Secrets to Hide Confidential Information 11. Dividing a Cluster into Namespaces 12. Securing Kubernetes Clusters 13. Managing Resources 14. Creating a Production-Ready Kubernetes Cluster 15. Persisting State 16. The End 17. Other Books You May Enjoy

Attaching claimed volumes to Pods

cat pv/jenkins-pv.yml  

The relevant parts of the output is as follows:

...
apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: jenkins
  namespace: jenkins
spec:
  ...
  template:
    ...
    spec:
      containers:
      - name: jenkins
        ...
        volumeMounts:
        - name: jenkins-home
          mountPath: /var/jenkins_home
        ...
      volumes:
      - name: jenkins-home
        persistentVolumeClaim:
          claimName: jenkins
      ...  

You'll notice that, this time, we added a new volume jenkins-home, which references the PersistentVolumeClaim called jenkins. From the container's perspective, the claim is a volume.

Let's deploy Jenkins resources and confirm that everything works as expected.

kubectl apply \
    -f pv/jenkins-pv.yml \
    --record  

The output is as follows:

namespace "jenkins...
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