Applies Ecto migrations to a deployed application.
Build with MIX_ENV=prod mix release --env=prod. Upload to your server.
You'll need a directory with migrations (usually it's /priv/repo/migrations within your application)
and the database credentials (DB name, username, password).
Run the app as follows:
DIRECTORY=/path/to/migrations ACTION=migrate|rollback DB_NAME=name DB_USER=user DB_PASSWORD=password REPLACE_OS_VARS=true bin/migrator foreground
For simple syntax, use the shell scripts located in the release's main directory:
migrate.sh /path/to/migrations dbname dbuser dbpassword
rollback.sh /path/to/migrations dbname dbuser dbpassword