From fd83ad1ed3ce01b6c0a088afc0317677f2e9b6de Mon Sep 17 00:00:00 2001
From: capnis <40711191+capnis@users.noreply.github.com>
Date: Sat, 30 Jun 2018 11:15:58 +0300
Subject: [PATCH] Add support for docker secrets

Check if password file ENV variable POSTGRES_PASSWORD_FILE is set (for use with docker secrets, point this to /run/secrets/<name of secret>). If it is not set, fallback to POSTGRES_PASSWORD ENV variable.
---
 backup.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/backup.sh b/backup.sh
index 3d5d96f..9e974b3 100755
--- a/backup.sh
+++ b/backup.sh
@@ -28,7 +28,11 @@ if [ "${POSTGRES_PASSWORD}" = "**None**" ]; then
 fi
 
 #Proces vars
-export PGPASSWORD=$POSTGRES_PASSWORD
+if [ "${POSTGRES_PASSWORD_FILE}" = "**None**" ]; then
+  export PGPASSWORD=$POSTGRES_PASSWORD
+else
+  export PGPASSWORD=$(cat ${POSTGRES_PASSWORD_FILE})
+fi
 POSTGRES_HOST_OPTS="-h $POSTGRES_HOST -p $POSTGRES_PORT -U $POSTGRES_USER $POSTGRES_EXTRA_OPTS"
 KEEP_DAYS=$BACKUP_KEEP_DAYS
 KEEP_WEEKS=`expr $((($BACKUP_KEEP_WEEKS * 7) + 1))`