Lab 23:Pushing an image to ECR

                                                         Pushing an image to ECR

What is ECR?Why we use it? 

Amazon Elastic container Registry(ECR) is fully-managed Docker container registry that makes it easy for developers to store,manage and deploy Docker container images.

Lab:Push the image to ECR:

Go to the aws console

Select ECR dashboard

Click on Create repository

Give a name to repository

Click on Create repository

Select repository click on view push commands

Click on view push commands

You will get a page like this.

Copy the commands which are there

$(aws ecr get-login-no-include-email-region us-east-2)

docker tag nodejs:latest 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:latest

docker push 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:latest

Now tag the image

docker tag nodejs 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:1

then push the image

docker push 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:1

Before this login to the git bash to do tag and push the image

Before this create a role and add to the instance which you created to give the permissions

Go to IAM dashboard

Click on  roles

Create a role

Click on create a role

Select EC2 instance to give role

Click on next permissions

Select the policy which you to the permission as per now gives the administration access 

Then click on tags

Click on Review 

Give a name to the role

Then click  a create a role

Now go to instance which you have created

Select the instance click on actions

Select attach/replace IAM role

Select the role which you have created.

Then click on apply

Now go to the git bash connect to the instance

Login to the ECR 

Use the following command

#awsecr get-login-no-include-email-region us-east-2

Now copy the text and paste and enter

Now tag the image

#docker tag nodejs 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:1 

Now push the image

docker tag nodejs 529087098264.dkr.ecr.us-east-2.amazonaws.com/nodejs:1

Now go the ecr dashboard select the repo whether the image is pushed or not.

Execrise:Build an images of httpd,flask app,react js app ,and push the image to ECR.