Hack IFS in 'detect-external-ip' script of Docker image to support both Debian and Alpine

2021-05-17 23:38:38 +03:00 · 2021-05-17 23:38:38 +03:00 · f2f8796e8c
commit f2f8796e8c
parent 484c88ea2a
1 changed files with 2 additions and 1 deletions
--- a/docker/coturn/rootfs/usr/local/bin/detect-external-ip.sh
+++ b/docker/coturn/rootfs/usr/local/bin/detect-external-ip.sh
@ -100,7 +100,8 @@ else
  }
 fi

-IFS=$'\n'; for COMMAND in $COMMANDS; do
+IFS="$(printf '\nx')" && IFS="${IFS%x}"
+for COMMAND in $COMMANDS; do
  if IP="$(eval "$COMMAND")" && is_valid_ip "$IP"; then
    printf '%s' "$IP"
    exit 0