Export AWS env vars from AWS credentials and set profile in one step.

export-aws-creds.sh

#!/usr/bin/env bash

# export-aws-creds.sh
# https://github.com/jurawa

# When sourced, this script will export the AWS_ACCESS_KEY_ID and
# AWS_SECRET_ACCESS_KEY env vars from a specific profile in
# ~/.aws/credentials.

# It will also set AWS_PROFILE and AWS_DEFAULT_PROFILE, ensuring
# the current shell is configured to use the correct AWS credentials
# regardless of what script or tools you are using to connect to AWS...
# boto, aws cli, ansible etc.

# Modified from:
# https://gist.github.com/mccutchen/d7902e2c8cd414cdd2b0

# Usage:
#
# First ensure your AWS profiles are correctly set up:
# http://docs.aws.amazon.com/cli/latest/userguide/cli-multiple-profiles.html
#
# Then source this script with the profile name.
#
#  $ . ./export-aws-creds.sh [PROFILE NAME]
#
# If PROFILE is not given, the "default" profile will be exported.
#
# I also add a function to my .zshrc to ease usage:
#
#  function awsprofile () {
#    . ~/Dev/export-aws-creds.sh $1
#  }
#
# Then run it:
#
#  $ awsprofile sandbox

[[ -z "$1" ]] && profile="default" || profile="$1"

credentials=$(grep -A 2 "$profile" ~/.aws/credentials | grep -v "$profile")

if [[ "$credentials" == "" ]]; then
    echo "Error: profile '$profile' not found in ~/.aws/credentials"
    return
fi
echo ""
echo "Exporting profile:     $profile"
for key in AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY; do
    val=$(echo "$credentials" | grep -i $key | awk -F '=' '{print $2}')
    if [[ "$val" == "" ]]; then
        echo " Error: missing $key"
        return
    fi
    export $key=$val
done

export AWS_DEFAULT_PROFILE=$profile
export AWS_PROFILE=$profile

echo "==================================================================="
echo "AWS_ACCESS_KEY_ID:     ****************${AWS_ACCESS_KEY_ID: -4}"
echo "AWS_SECRET_ACCESS_KEY: ****************${AWS_SECRET_ACCESS_KEY: -4}"
echo "AWS_DEFAULT_PROFILE:   $AWS_DEFAULT_PROFILE"
echo "AWS_PROFILE:           $AWS_PROFILE"
echo "==================================================================="
echo 'aws configure list'
aws configure list
echo "==================================================================="