You can choose

• plain python package dump-psql-roles-grants that requires libpq system library
• or package dump-psql-roles-grants[binary] that have binaries included

pipx install 'dump-psql-roles-grants[binary]'
dump_psql_roles_grants --help

brew install rgeraskin/homebrew/dump-psql-roles-grants
dump_psql_roles_grants --help

pip install 'dump-psql-roles-grants[binary]'
python -m dump_psql_roles_grants --help

docker pull rgeraskin/dump_psql_roles_grants
docker run --name dump_psql_roles_grants --rm rgeraskin/dump_psql_roles_grants --help

1. Generate an example config file dump_psql_roles_grants gen-example-config -o config.yaml

2. Place instances connection info to _inputs dir

   _inputs/
   ├── dev.yaml
   ├── prod.yaml
   ├── stage.yaml
   └── test.yaml

   File format: yaml or json

   <INSTANCE NAME 1>:
     dbname: <DB TO CONNECT>
     host: <INSTANCE HOSTNAME>
     password: <PASSWORD>
     user: <USER NAME>
   
   <INSTANCE NAME X>:
     dbname: <DB TO CONNECT>
     host: <INSTANCE HOSTNAME>
     password: <PASSWORD>
     user: <USER NAME>

3. Review config.yaml

4. Run

   dump_psql_roles_grants --help