Added Nextcloud/Collabora

Services/postgres/postgres.README

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+# Create DB
+
+Create User
+$ podman exec -it postgres psql -U postgres -c "CREATE USER [nome_progetto] WITH password '[password_db_progetto]';"
+
+Or with CREATEDB
+$ podman exec -it postgres psql -U postgres -c "CREATE USER [nome_progetto] WITH password '[password_db_progetto]' CREATEDB;"
+
+Create DB
+$ podman exec -it postgres psql -U postgres -c "CREATE DATABASE [nome_progetto];"
+$ podman exec -it postgres psql -U postgres -c "GRANT ALL privileges ON DATABASE [nome_progetto] TO [nome_progetto];"
+$ podman exec -it postgres psql -U postgres -d [nome_progetto] -c "GRANT CREATE ON SCHEMA public TO [nome_progetto];"