Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
The Docker Workshop

You're reading from   The Docker Workshop Learn how to use Docker containers effectively to speed up the development process

Arrow left icon
Product type Paperback
Published in Oct 2020
Publisher Packt
ISBN-13 9781838983444
Length 792 pages
Edition 1st Edition
Tools
Concepts
Arrow right icon
Authors (5):
Arrow left icon
Engy Fouda Engy Fouda
Author Profile Icon Engy Fouda
Engy Fouda
Onur Yılmaz Onur Yılmaz
Author Profile Icon Onur Yılmaz
Onur Yılmaz
Sathsara Sarathchandra Sathsara Sarathchandra
Author Profile Icon Sathsara Sarathchandra
Sathsara Sarathchandra
Aric Renzo Aric Renzo
Author Profile Icon Aric Renzo
Aric Renzo
Vincent Sesto Vincent Sesto
Author Profile Icon Vincent Sesto
Vincent Sesto
+1 more Show less
Arrow right icon
View More author details
Toc

Table of Contents (17) Chapters Close

Preface
1. Running My First Docker Container 2. Getting Started with Dockerfiles FREE CHAPTER 3. Managing Your Docker Images 4. Multi-Stage Dockerfiles 5. Composing Environments with Docker Compose 6. Introduction to Docker Networking 7. Docker Storage 8. CI/CD Pipeline 9. Docker Swarm 10. Kubernetes 11. Docker Security 12. Best Practices 13. Monitoring Docker Metrics 14. Collecting Container Logs 15. Extending Docker with Plugins Appendix

Troubleshooting Swarm Nodes

For the work we will be doing in this chapter, we will be using only a single-node swarm to host our services. Docker Swarm has been providing production-level environments for years now. However, this doesn't mean there will never be any issues with your environment, especially when you start hosting services in a multi-node swarm. If you need to troubleshoot any of the nodes running on your cluster, there are a number of steps you can take to make sure you are correcting any issues they may have:

  • Reboot: Usually the easiest option is to either reboot or restart the node system to see whether this resolves the issues you may be experiencing.
  • Demote the node: If the node is a manager on your cluster, try demoting the node using the node demote command:
    docker node demote <node_id>

    If this node is the leader, it will allow one of the other manager nodes to become the leader of the swarm and hopefully resolve any issues you may be experiencing...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at €18.99/month. Cancel anytime