Docker Swarm High Availability, Load Balancing, Auto Scaling & Zero Downtime Deployments

#DockerSwarm, #Loadbalancing, #HighAvailability Hello Friends, Welcome back to my channel. We are going to see another tutorial on Docker Swarm. In this tutorial, we will see how running an application in docker swarm is beneficial in an real production environment. We will go through the step by step instructions on High availability & auto load balancing in Docker Swarm, How easily you can scale your application services, with zero down time and easy maintenance of your servers.

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Docker Swarm Visualizer:

Docker command to start the Visualizer container:

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How to setup Docker on Centos:
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Setup Docker Swarm:
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docker service create --name Nginx -p 8080:80 --replicas 4 nginx

docker service scale Alpine=5

docker node update --availability drain worker1

sudo firewall-cmd --permanent --zone=public --add-port=2377/tcp
sudo firewall-cmd --reload

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[bisratmulugeta]

Caution! This is not the concept of auto-scaling. Appreciate ur commitment!

[MySidhartha]

Hi Really helpful video.
Can you let us know how to automate the above process using any script or any other tool.
As we need to scale up sometimes when there there is much load on the server....

Kindly give some idea about it.Thanks

[madhavaraojavaji]

Thankyou Friend, really good for beginner's like me. It's good informative and well explained about scale up & down. Can we do scale up nodes without downtime. Please suggest me.

[rampanwar]

Sir how to use storage in docker swarm nodes. Please make a videos

[theacevj]

Hi, can you please explain how port mapping is done across hosts as for 3 hosts and 6 containers being launched on port 8082:80 mapping, will any issue arise as it will try to assign the same port to the other container being launched on the host?

[AxelWerner]

just another pidgin english video. how nice.

[mithileshpandey]

how we can deploy the local code changes in docker swarm manually ?

[netman]

Why waste so much time repeating simple features... and this had like nothing to do with high availability as you only need to lose your single master node and everything is down.

[TuanKayTV]

You do not show how to make auto-scale and "Zero Downtime Deployments".

[apexyu]

None of the content is about Load-balancing

[sujeetsharma]

Boss, you didn't cover auto-scaling... please change the title of this video.

[maxevangeliste]

While that was interesting, there is nothing in there about the autoscaling and zero downtime deployment aspects, except the 5 second useless mention at the end of the video.