From 3d101a705df2339bb188375775d6a9189ca02165 Mon Sep 17 00:00:00 2001
From: Val Hendrix <vchendrix@lbl.gov>
Date: Wed, 19 Feb 2020 12:56:55 -0800
Subject: [PATCH] Refactor docker-entrypoint.sh to wait for postgres db to be
 available

Closes #16
---
 docker-entrypoint.sh | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 7bc2b51..71b227a 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -9,6 +9,15 @@ fi
 
 if [ "$1" = 'bin/catalina.sh' ]; then
 
+    echo
+    echo '**************************************'
+    echo "Waiting for Postgress to start "
+    echo '**************************************'
+    echo
+    while ! nc -z "${DB_HOST:-db}" "${DB_PORT:-5432}"; do
+      sleep 0.1
+    done
+
 
     METACAT_DEFAULT_WAR=/usr/local/tomcat/webapps/metacat.war
     METACAT_DIR=/usr/local/tomcat/webapps/${METACAT_APP_CONTEXT}