How to Deploy a Docker App to AWS using Elastic Container Service (ECS)

In this step by step tutorial, I show you how to deploy a Flask based Docker app to AWS. We start by building a local docker image and uploading it to Elastic Container Registry. We create an ECS Cluster, and configure a task to run our docker image. Finally, we launch a Task into the cluster and expose the app to the internet via VPC.

00:10 Example Overview
02:15 Application Walkthrough
04:34 Creating a ECR Repository
05:16 Uploading your Image to ECR
06:28 Creating an ECS Cluster
09:10 Creating a ECS Task Definition
11:35 Running a Task on your Cluster
13:03 Testing our app

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☁Topics covered include:
Docker
Flask App
Elastic Container Registry
Elastic Container Service

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[AlexeyYanovski]

For anyone getting this error: CannotStartContainerError: Error response from daemon: OCI runtime create failed: container_linux.go:370: starting container process caused: process_linux.go:338: getting the final child's pid from pipe caused: read init-p: connection reset by peer: unkno

The cause is there's not enough memory assigned for your Task. If you followed along to the video, in task definition, change memory from 1 to 512 and CPU to 512 as well. Hope it helps

[daCorasla]

Thanks for this awesome tutorial!

For anyone actually trying to deploy some kind of code that needs to be built on the machine, please take EXTRA care in making sure that the instance type has more than enough memory to actually build the app and start it properly. Figured this out only after ssh-ing into the EC2 container and interactively running commands on the docker image to try and manually build the project

[enso]

This was amazing, I've ben looking for this exact kind of tutorial for ages and it really cuts through the verbose aws documentation! Thank you so much!

[go_better]

Man! I wanna hug you! I suffered for about a month through bullshitery guides from amazon on how to do it! But you explained it so simply! Now I will need to make a pipeline with autodeploy. I hope you'll have videos on that topic. THANK YOU once again for such clear explanation.

[miguelchiquin]

You saved my day! Thanks. Specially when you showed that the public IP wasn't accesible because of the default security group that the instance had attached.

[ngneerin]

Have been looking for such a tutorial since two months now

[juandiegoescobarlondono]

Thank you so much, I have a container enabled on port 9000 but didn't know why it wasn't working, this is a life saver.
Thanks again.

[rajanagori]

Thank you so much saviour you made my task like flawless. huge respect

[isragaytanmistico]

Love your video!! Thanks!!..quick and easy !...with no garbage! God Bless you!
You won one subscriber!

[cmlaio]

Thank you for the video, I was about to give up trying to run a container from a Docker image because I could not understand Amazon's documentation. This video was incredibly helpful.

[DarkMatter-zkbo]

This is a great tutorial! Thank you very much.
It'll be great to see this being done using a CI/CD pipeline!

[fichthammerli]

straight forward and quick, thank you!

[enricosaccheggiani]

Great video Thanks a lot. I tryed many times to do this but only with your video I solved the problem very very great thanks

[Billbillbillhahagdvdve]

Great video - really helps with understanding ECR, ECS and EC2. 😀

[andremazetto]

How could one figure all this out without this tutorial... the amount of steps are insane and the AWS CLI is so not intuitive! thanks for demystifying it for us

[darrenklein]

Thanks for this helpful tutorial, it got me up and running! However, one issue that I ran into was trying to run multiple clusters (one for a staging release of my app, one for production) - I found that if I put both clusters on the same subnet, the second cluster wouldn't start an EC2 instance; putting them on different subnets resolved that. This is my first foray into AWS and I have about zero experience with networking, so maybe that's totally expected and normal - but if you're like me and you're just starting to learn your way around, maybe this'll be helpful for you.

[ramirez]

Super nice....thanks, vey useful, especially the task definition part.

[sridhar]

Thanks lot for your wonderful videos .. content are sharp and crisp

[bijayaadhikari]

Thank you for the consistence aws videos.

[viniciusvendramelgalhiardi]

Man, congrats!!! This video helped me a lot! Very nice!!