From 072ff1cce3a060c57f85d0d249b7b5ef385f43ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Sj=C3=B6gren?=
 <konstruktoid@users.noreply.github.com>
Date: Tue, 21 Feb 2017 11:49:06 +0100
Subject: [PATCH] fallback to default daemon.json
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Signed-off-by: Thomas Sjögren <konstruktoid@users.noreply.github.com>
---
 helper_lib.sh | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/helper_lib.sh b/helper_lib.sh
index 0d2df7c..15934eb 100644
--- a/helper_lib.sh
+++ b/helper_lib.sh
@@ -84,7 +84,14 @@ get_docker_configuration_file_args() {
     OPTION="$1"
     FILE="$(get_docker_effective_command_line_args '--config-file' | \
         sed 's/.*=//g')"
-    if ! grep "$OPTION" "$FILE"; then
+
+    if [ -f "$FILE" ]; then
+      CONFIG_FILE="$FILE"
+    else
+      CONFIG_FILE="/etc/docker/daemon.json"
+    fi
+
+    if ! grep "$OPTION" "$CONFIG_FILE"; then
       echo 0
     fi
 }