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#!/usr/bin/env bash
set -eu
set -o pipefail

echo "Creating droplet for mail..."
id=$(doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute droplet create \
    mail \
    --image debian-9-x64 \
    --region nyc3 \
    --size s-1vcpu-1gb \
    --ssh-keys 23160354 \
    --format ID \
    --no-header \
    --wait)
echo "Created droplet with id $id"

echo "Assigning floating ip to mail..."
# XXX this returns an error for some reason, but actually succeeds:
# Error: could not assign IP to droplet: json: cannot unmarshal number
# 2328181259 into Go struct field Action.resource_id of type int
doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute floating-ip-action assign \
    159.89.254.14 \
    "$id" || true
echo "Done assigning floating ip"

echo "Provisioning droplet..."

host="${1:-newmail.tozt.net}"
conf_location="/usr/local/share/puppet-tozt"
conf_repo="git://github.com/doy/puppet-tozt"

remote() {
    # shellcheck disable=SC2029
    ssh root@"$host" "$@"
}

apt() {
    remote env DEBIAN_FRONTEND=noninteractive apt-get -yq "$@"
}

ensure_conf_exists() {
    if remote test -d "$conf_location"; then
        remote "cd '$conf_location' && git pull"
    else
        remote "mkdir -p '$conf_location'"
        remote "cd '$conf_location' && git clone '$conf_repo' ."
    fi
    remote "cd '$conf_location' && git submodule update --init --recursive"
}

while ! remote true; do
    sleep 5
done

apt update
apt upgrade
apt install git puppet

ensure_conf_exists
scp -r /mnt/puppet/mail/ root@"$host":/usr/local/share/puppet-tozt/mail/secret/files
remote "cd '$conf_location' && puppet apply --modulepath=./mail -e 'include mail'"

echo "Done"