open-balena/scripts/patch-hosts

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2018-02-20 09:20:12 +00:00
#!/bin/bash -e
usage() {
echo "usage: $0 DOMAIN"
echo
echo " DOMAIN the domain name to add host entries for, eg. example.com"
echo
}
if [ -z "$1" ]; then
usage
exit 1
fi
SERVICES="api registry vpn db s3 redis"
DOMAIN="$1"
# We need sudo to write to /etc/hosts, so first write to a temp file and then
# append all entries to hosts file.
tmp="$(mktemp --tmpdir openbalena.XXXX)"
for service in $SERVICES; do
name="${service}.${DOMAIN}"
if ! grep "\\s$name" /etc/hosts >/dev/null 2>&1 ; then
echo "adding $name"
echo "127.0.0.1 $name" >>"${tmp}"
fi
done
# shellcheck disable=SC2024
sudo tee -a /etc/hosts >/dev/null <"${tmp}"
rm -f "${tmp}"