WIP Prepare postgres for migration by replication

site-cookbooks/kosmos_postgresql/files/restore_all_databases.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+cd /tmp
+for f in dump_*.tar.zst; do
+  db=$(echo $f | sed "s/dump_\(.*\)\.tar\.zst/\1/")
+  echo "Restoring $db"
+  zstd -d "$f" -c | tar -xf -
+  pg_restore -j 4 -d "$db" dump_$db
+done