AWS CLI - Deploy Beanstalk Application Version

elasticbeanstalk_deploy.sh

#!/bin/bash
appname=$1
envname=$2
versionid=$3

#if version id is not set, get the latest
if [ -z "$versionlabel" ]; then
#get the latest application version, piping to sed to remove quotes from string
versionid="$(aws elasticbeanstalk describe-application-versions --application-name $appname | jq '.ApplicationVersions[0].VersionLabel' | sed -e 's/^"//'  -e 's/"$//')"
fi

#exist if version id is null, i.e jq couldn't parse a valid version
if [ "$versionid" == "null" ]; then
echo "Failed to locate latest application version" >&2
exit 5
fi

#deploy the application version
echo "Deploying application version $versionid to environment $envname"
aws elasticbeanstalk update-environment --environment-name $envname --version-label $versionid