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

echo "Creating droplet for mail..."
data=$(doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute droplet create \
    mail \
    --image debian-9-x64 \
    --region nyc3 \
    --size s-1vcpu-1gb \
    --ssh-keys 23160354 \
    --volumes 5e4d8c7b-f840-11e8-b59e-0a58ac1467fb \
    --format ID,PublicIPv4 \
    --no-header \
    --wait)
id=$(echo "$data" | awk '{print $1}')
ip=$(echo "$data" | awk '{print $2}')
echo "Created droplet with id $id and ip $ip"

echo "Creating DNS entry for $ip..."
record_id=$(doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute domain records list \
    tozt.net \
    --format Name,Type,ID \
    --no-header \
    | grep '^newsmtp \+A ' \
    | awk '{print $3}'
)
doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute domain records update \
    tozt.net \
    --record-id "$record_id" \
    --record-type A \
    --record-name newsmtp \
    --record-data "$ip" \
    --record-ttl 600
echo "Done creating DNS entry"

echo "Provisioning droplet..."

conf_location="/usr/local/share/puppet-tozt"
conf_repo="git://github.com/doy/puppet-tozt"

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

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

if remote test ! -e /usr/bin/pacman; then
    remote apt-get -y update
    remote apt-get -y install git
    ensure_conf_exists
    remote "cd '$conf_location/digitalocean-debian-to-arch' && bash install.sh --i_understand_that_this_droplet_will_be_completely_wiped --extra_packages 'puppet git ruby-shadow'"
    sleep 30
    while ! remote true; do
        sleep 30
    done
fi

ensure_conf_exists
scp -r /mnt/puppet/tozt/ root@"$ip":/usr/local/share/puppet-tozt/modules/secret/files
remote "cd '$conf_location' && puppet apply --modulepath=./modules manifests"

echo "Done provisioning"

echo "Creating DKIM entry"
dkim=$(remote "perl -pe'chomp; s/.*\"(.*)\".*/\$1/' /media/persistent/dkim/new.tozt.net.dkim.pub")
dkim_record_id=$(doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute domain records list \
    tozt.net \
    --format Name,Type,ID \
    --no-header \
    | grep '^dkim._domainkey.new \+TXT ' \
    | awk '{print $3}'
)
doctl \
    -t "$(cat /mnt/digitalocean)" \
    compute domain records update \
    tozt.net \
    --record-id "$dkim_record_id" \
    --record-type TXT \
    --record-name dkim._domainkey.new \
    --record-data "$dkim" \
    --record-ttl 600
echo "Done creating DKIM entry"

echo "Done"