move database ready check into init container

pleroma/docker-entrypoint.sh

@@ -2,12 +2,10 @@
 
 set -e
 
+# Move the files that were built into the image into the directory they will be served from
 mkdir -p ${DATA}/uploads && mkdir -p ${DATA}/static
 cp -rf /static-files/* ${DATA}/static
 
-echo "-- Waiting for database..."
-while ! pg_isready -U ${DB_USER:-pleroma} -d postgres://${DB_HOST:-db}:${DB_PORT:-5432}/${DB_NAME:-pleroma} -t 1; do sleep 1s; done;
-echo $DB_PASSWORD
 echo "-- Running migrations..."
 $HOME/bin/pleroma_ctl migrate