[TOOLS][SSL] Added bin/boostrap_certificates.sh, allowing for easy configuration of SSL certificates with Let's Encrypt

docker/db/wait_for_db.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+case $SOCIAL_DBMS in
+    "mariadb")
+        CMD=mysqladmin ping --silent -hdb -uroot -p${MYSQL_ROOT_PASSWORD}
+        ;;
+    "postgres")
+        CMD=su postgres && pg_isready -hdb -q
+        ;;
+    *)
+        exit 1
+
+esac
+
+while ! $CMD;
+do
+    echo "Waiting for DB..."
+    sleep 3
+done