Build a Docker image, push it to AWS EC2 Container Registry, then deploy it to AWS Elastic Beanstalk

deploy.sh

#!/bin/bash

# usage: ./deploy.sh staging f0478bd7c2f584b41a49405c91a439ce9d944657
# license: public domain

BRANCH=$1
SHA1=$2

AWS_ACCOUNT_ID=12345678900
NAME=name-of-service-to-deploy
EB_BUCKET=aws-s3-bucket-to-hold-application-versions

VERSION=$BRANCH-$SHA1
ZIP=$VERSION.zip

aws configure set default.region us-east-1

# Authenticate against our Docker registry
eval $(aws ecr get-login)

# Build and push the image
docker build -t $NAME:$VERSION .
docker tag $NAME:$VERSION $AWS_ACCOUNT_ID.dkr.ecr.us-east-1.amazonaws.com/$NAME:$VERSION
docker push $AWS_ACCOUNT_ID.dkr.ecr.us-east-1.amazonaws.com/$NAME:$VERSION

# Replace the <AWS_ACCOUNT_ID> with the real ID
sed -i='' "s/<AWS_ACCOUNT_ID>/$AWS_ACCOUNT_ID/" Dockerrun.aws.json
# Replace the <NAME> with the real name
sed -i='' "s/<NAME>/$NAME/" Dockerrun.aws.json
# Replace the <TAG> with the real version number
sed -i='' "s/<TAG>/$VERSION/" Dockerrun.aws.json

# Zip up the Dockerrun file (feel free to zip up an .ebextensions directory with it)
zip -r $ZIP Dockerrun.aws.json

aws s3 cp $ZIP s3://$EB_BUCKET/$ZIP

# Create a new application version with the zipped up Dockerrun file
aws elasticbeanstalk create-application-version --application-name $NAME-application \
    --version-label $VERSION --source-bundle S3Bucket=$EB_BUCKET,S3Key=$ZIP

# Update the environment to use the new application version
aws elasticbeanstalk update-environment --environment-name $NAME \
      --version-label $VERSION

Dockerrun.aws.json

{
  "AWSEBDockerrunVersion": "1",
  "Image": {
    "Name": "<AWS_ACCOUNT_ID>.dkr.ecr.us-east-1.amazonaws.com/<NAME>:<TAG>",
    "Update": "true"
  },
  "Ports": [
    {
      "ContainerPort": "443"
    }
  ]
}

@javahometech when using elastic beanstalk ,and ecr, you set up an iam role. So then when the following was run:

eval $(aws ecr get-login)

aws ecr get-login prints out a docker login command with a temporary credential. That output then gets executed with the eval statement and that's how auth is handled.

sed command contains minor "error":
sed -i='' "s/<AWS_ACCOUNT_ID>/$AWS_ACCOUNT_ID/" Dockerrun.aws.json will make a backup file called Dockerrun.aws.json= which is not what would be expected. Assume because -i was used the expectation is that file will be modified in place.

Documentation https://linux.die.net/man/1/sed
-i='' needs to be replaced with either --in-place='' or with -i '' or with a sensible backup extension -i.bak
First 2 options will not work on all systems and I found the last one -i.bak a bit more reliable when running sed on OSX and on Linux