From 8f6ae90cbaeec2b13942677ccc11c0b443268c46 Mon Sep 17 00:00:00 2001
From: lguohan <gulv@microsoft.com>
Date: Thu, 13 Jun 2019 22:24:09 -0700
Subject: [PATCH] [docker]: get hostname from config db instead of minigraph
 (#3004)

minigraph may not be always available on the some system configuration.
Should use config db as the source of truth.
---
 files/build_templates/docker_image_ctl.j2 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/files/build_templates/docker_image_ctl.j2 b/files/build_templates/docker_image_ctl.j2
index 9b11ea5175..7dfc5e3c7c 100644
--- a/files/build_templates/docker_image_ctl.j2
+++ b/files/build_templates/docker_image_ctl.j2
@@ -130,8 +130,8 @@ start() {
     {%- else %}
     # Obtain our HWSKU as we will mount directories with these names in each docker
     HWSKU=`sonic-cfggen -d -v 'DEVICE_METADATA["localhost"]["hwsku"]'`
+    HOSTNAME=`sonic-cfggen -d -v 'DEVICE_METADATA["localhost"]["hostname"]'`
     {%- endif %}
-    HOSTNAME=`sonic-cfggen -m -v 'DEVICE_METADATA["localhost"]["hostname"]'`
     if [ -z "$HOSTNAME" ] || ! [[ $HOSTNAME =~ ^[a-zA-Z0-9.\-]*$ ]]; then
         HOSTNAME=`hostname`
     fi