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sovereign-stack/deployment/deploy_vms.sh

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#!/bin/bash
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set -eu
cd "$(dirname "$0")"
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# let's make sure we have an ssh keypair. We just use $SSH_HOME/id_rsa
# TODO convert this to SSH private key held on Trezor. THus trezor-T required for
# login operations. This should be configurable of course.
if [ ! -f "$SSH_HOME/id_rsa" ]; then
# generate a new SSH key for the base vm image.
ssh-keygen -f "$SSH_HOME/id_rsa" -t ecdsa -b 521 -N ""
fi
## This is a weird if clause since we need to LEFT-ALIGN the statement below.
SSH_STRING="Host ${FQDN}"
if ! grep -q "$SSH_STRING" "$SSH_HOME/config"; then
########## BEGIN
cat >> "$SSH_HOME/config" <<-EOF
${SSH_STRING}
HostName ${FQDN}
User ubuntu
EOF
###
fi
ssh-keygen -f "$SSH_HOME/known_hosts" -R "$FQDN"
# if the machine doesn't exist, we create it.
if ! lxc list --format csv | grep -q "$LXD_VM_NAME"; then
# create a base image if needed and instantiate a VM.
if [ -z "$MAC_ADDRESS_TO_PROVISION" ]; then
echo "ERROR: You MUST define a MAC Address for all your machines by setting WWW_SERVER_MAC_ADDRESS, BTCPAYSERVER_MAC_ADDRESS in your site defintion."
echo "INFO: IMPORTANT! You MUST have DHCP Reservations for these MAC addresses. You also need records established the DNS."
exit 1
fi
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./stub_lxc_profile.sh "$LXD_VM_NAME"
# 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"
./wait_for_lxc_ip.sh "$LXD_VM_NAME"
fi
# scan the remote machine and install it's identity in our SSH known_hosts file.
ssh-keyscan -H -t ecdsa "$FQDN" >> "$SSH_HOME/known_hosts"
# create a directory to store backup archives. This is on all new vms.
ssh "$FQDN" mkdir -p "$REMOTE_HOME/backups"
# if this execution is for btcpayserver, then we run the stub/btcpay setup script
# but only if it hasn't been executed before.
if [ "$VIRTUAL_MACHINE" = btcpayserver ]; then
if [ "$(ssh "$BTCPAY_FQDN" [[ ! -f "$REMOTE_HOME/btcpay.complete" ]]; echo $?)" -eq 0 ]; then
./btcpayserver/stub_btcpay_setup.sh
fi
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fi