sovereign-stack/deployment/provision_lxc.sh

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#!/bin/bash
set -eux
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cd "$(dirname "$0")"
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./stub_lxc_profile.sh "$LXD_VM_NAME"
function run_ddns {
# now that the VM has an IP, we can update the DNS record. TODO add additional DNS providers here; namecheap only atm.
DDNS_STRING="$VPS_HOSTNAME"
if [ "$VPS_HOSTNAME" = www ]; then
# next update our DDNS record. TODO enable local/remote name provider.
DDNS_STRING="@"
fi
# if the DNS record is incorrect, we run DDNS to get it corrected yo.
if "$(getent hosts "$FQDN" | awk '{ print $1 }')" != "$IP_V4_ADDRESS"; then
curl "https://dynamicdns.park-your-domain.com/update?host=$DDNS_STRING&domain=$DOMAIN_NAME&password=$DDNS_PASSWORD&ip=$IP_V4_ADDRESS"
DDNS_SLEEP_SECONDS=60
while true; do
# we test the www CNAME here so we can be assured the underlying has corrected.
if [[ "$(getent hosts "$FQDN" | awk '{ print $1 }')" == "$IP_V4_ADDRESS" ]]; then
echo ""
echo "SUCCESS: The DNS appears to be configured correctly."
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# we're waiting here to allow dns records to stale out.
# this is necessary for certificate renewal; letsencrypt might have stale records
# and cert renew won't succeed. HOWEVER, if we're running a restore operation, we SHOULD NOT
# do a certificate renewal (we're restoring old certs). Thus it is not necessary to sleep here.
if [ "$RUN_RESTORE" = false ]; then
echo "INFO: Waiting $DDNS_SLEEP_SECONDS seconds to allow cached DNS records to expire."
sleep "$DDNS_SLEEP_SECONDS";
fi
break;
fi
printf "." && sleep 2;
done
fi
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}
# now let's create a new VM to work with.
lxc init --profile="$LXD_VM_NAME" "$VM_NAME" "$LXD_VM_NAME" --vm
# let's PIN the HW address for now so we don't exhaust IP
# and so we can set DNS internally.
lxc config set "$LXD_VM_NAME" "volatile.enp5s0.hwaddr=$MAC_ADDRESS_TO_PROVISION"
lxc config device override "$LXD_VM_NAME" root size="${ROOT_DISK_SIZE_GB}GB"
lxc start "$LXD_VM_NAME"
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./wait_for_lxc_ip.sh "$LXD_VM_NAME"
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if [ "$VPS_HOSTING_TARGET" = aws ]; then
run_ddns
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# remove any existing SSH identities for the host, then add it back.
ssh-keygen -R "$IP_V4_ADDRESS"
fi