Rasopus Backend

The Rasopus URL shortener backend

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Configuration

The following environment variables can be used to configure the Rasopus backend:

Variable	Required	Description
RASOPUS_ADDRESS	Optional	The address Rocket will bind to. When not provided, Rocket's internal default is used. At the time of writing, this is 0.0.0.0.
RASOPUS_PORT	Optional	The port Rocket will bind to. When not provided, Rocket's internal default is used. At the time of writing, this is 8000.
RASOPUS_SECRET_KEY	Required	The secret key passed to Rocket for encrypting private cookies. For example, you can generate one with OpenSSL by executing openssl rand -base64 32.
RASOPUS_POSTGRES_USER	Required	The name of the postgres user.
RASOPUS_POSTGRES_PASSWORD	Required	The password of the postgres user.
RASOPUS_POSTGRES_HOST	Required	The postgres host to connect to.
RASOPUS_POSTGRES_PORT	Required	The postgres port to connect to.
RASOPUS_POSTGRES_DATABASE	Required	The name of the postgres database schema to use.
RASOPUS_POSTGRES_POOL_SIZE	Optional	How many postgres connections to open. By default, this has the value 10. This should be enough, but the option is there, just in case.
RASOPUS_ARGON2_ITERATIONS	Optional	The number of iterations for Argon2 hashing. By default, this has the value 3, which is in range of what OWASP recommends. This is a good cost/value trade-off. If you want higher security at the cost of performance, increase this to 4 or even 5. If you're insane, you can also go beyond that.
RASOPUS_ARGON2_MEMORY_MIB	Optional	The memory size in MiB for Argon2 hashing. By default, this has the value 70, which is higher than what OWASP recommends. Same as above, increase for additional security at the cost of performance.