packer.sh

#!/bin/bash -e

PS3='Select AWS authentication method: '
select auth in "Profile" "Credenials"
do
    case $auth in
        "Profile")
            profiles=( `cat ~/.aws/credentials | sed -rn 's/^\[([a-z]*)\]$/\1/p' | sort` )
            PS3='Please enter your choice: '
            select AWS_PROFILE in "${profiles[@]}"
            do
                case $AWS_PROFILE in
                    "")
                        echo "try again"
                        ;;
                    *)
                        break
                        ;;
                esac
            done
            export AWS_PROFILE
            break
            ;;
        "Credenials")
            echo -n "AWS Access Key: "
            read AWS_ACCESS_KEY_ID
            export AWS_ACCESS_KEY_ID

            echo -n "AWS Secret Key: "
            read -s AWS_SECRET_ACCESS_KEY
            echo
            export AWS_SECRET_ACCESS_KEY
            break
            ;;
        *)
            echo "try again"
            ;;
    esac
done

aws --region=eu-central-1 ec2 describe-vpcs --output=table --query 'Vpcs[*].[VpcId,CidrBlock,State]'
vpcs=( `aws --region=eu-central-1 ec2 describe-vpcs --query 'Vpcs[*].VpcId' --output=text` )
PS3='Please enter your choice: '
select vpc in "${vpcs[@]}"
do
    case $vpc in
        "")
            echo "try again"
            ;;
        *)
            break
            ;;
    esac
done

aws --region=eu-central-1 ec2 describe-subnets --filters "Name=vpc-id,Values=$vpc" --output=table --query 'Subnets[*].[SubnetId,CidrBlock,AvailabilityZone,CidrBlock,State]'
subnets=( `aws --region=eu-central-1 ec2 describe-subnets --filters "Name=vpc-id,Values=$vpc" --query 'Subnets[*].SubnetId' --output=text` )
PS3='Please enter your choice: '
select subnet in "${subnets[@]}"
do
    case $subnet in
        "")
            echo "try again"
            ;;
        *)
            break
            ;;
    esac
done

for t in */*template.json; do
    while true; do
        read -p "Do you want to build $t? [y/n] " yn
        case $yn in
            [Yy])
                docker run -it \
                    -e "AWS_PROFILE=${AWS_PROFILE}" -e "AWS_SHARED_CREDENTIALS_FILE=/.credentials" -e "AWS_ACCESS_KEY=${AWS_ACCESS_KEY_ID}" -e "AWS_SECRET_KEY=${AWS_SECRET_ACCESS_KEY}" \
                    -e "VPC_ID=${vpc}" -e "SUBNET_ID=${subnet}" \
                    -v ~/.aws/credentials:/.credentials \
                    -v "$PWD/`dirname $t`:/template" \
                    -w /template \
                    hashicorp/packer:light-1.9.5 build `basename $t`
                break
                ;;
            [Nn])
                echo "Skipping $t"
                break
                ;;
            *)
                echo "Please answer y or n."
                ;;
        esac
    done
done