README

README.md

@@ -1,2 +1,15 @@
 postfixadmin default admin:
-root@example.org:toor42
+root@example.com:toor42
+
+## Upgrade 1.x.x => 2.x.x:
+
+- Move SSL certs to `data/common/certs/{cert.pem,privkey.pem,chain.pem,fullchain.pem}`
+- Visit postfixadmin/setup.php to upgrade database
+
+```
+docker-compose down
+docker run --rm -v "$(pwd)/data/postgresql/data:/var/lib/postgresql/9.6/data" -v "$(pwd)/data/postgresql/data_new:/var/lib/postgresql/11/data" tianon/postgres-upgrade:9.6-to-11
+mv data/postgresql/data data/postgresql/data_old
+mv data/postgresql/data_new data/postgresql/data
+docker-compose up --build -d
+```