Module config

Provides configuration to the system and the application.

Macros

• ipv4_addr_from_env
  Reads an IPv4 address at compile time from the given environment variable, produces an Ipv4Addr.
• ipv4_addr_from_env_or
  Reads an IPv4 address at compile time from the given environment variable, produces an Ipv4Addr.
• ipv6_addr_from_env
  Reads an IPv6 address at compile time from the given environment variable, produces an Ipv6Addr.
• ipv6_addr_from_env_or
  Reads an IPv6 address at compile time from the given environment variable, produces an Ipv6Addr.
• str_from_env
  Reads a value at compile time from the given environment variable.
• str_from_env_or
  Reads a value at compile time from the given environment variable, with a default.