setup_terraform

#!/usr/bin/env bash
#Setup terraform envvars
# Usage:
#	. ./setup_terraform.sh
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
mkdir -p .secrets

echo -n "Enter your digital-ocean token: "
read do_token

echo "Writing $do_token to ./secrets/DO_TOKEN"
echo "$do_token" > "$DIR/.secrets/DO_TOKEN"

echo -n "Enter path to digital-ocean public key: "
read do_public_key

echo -n "Enter path to digital-ocean private key: "
read do_private_key

export TF_VAR_do_token=$(cat $DIR/.secrets/DO_TOKEN)
export TF_VAR_ssh_private_key=${do_private_key}

function get_ssh_version {
    # ssh -V prints to stderr, redirect
    ssh_ver=$(ssh -V 2>&1)
    [[ -n $ZSH_VERSION ]] && setopt LOCAL_OPTIONS KSH_ARRAYS BASH_REMATCH
    [[ $ssh_ver =~ OpenSSH_([0-9][.][0-9]) ]] && echo "${BASH_REMATCH[1]}"
}

# if ssh version is under 6.9, use -lf, otherwise must use the -E version
if ! awk -v ver="$(get_ssh_version)" 'BEGIN { if (ver < 6.9) exit 1; }'; then
    export TF_VAR_ssh_fingerprint=$(ssh-keygen -lf ${do_public_key} awk '{print $2}')
else
    export TF_VAR_ssh_fingerprint=$(ssh-keygen -E MD5 -lf ${do_public_key} | awk '{print $2}' | sed 's/MD5://g')
fi