pave

pave

pave is a tiny program which provides process management and template rendering for configuration files before running processes. In addition to configuration files, each command to run a process can be used as a template. It is intended to use inside a Docker container.

pave uses Golang template language and extends following functions that can be used in a template.

• env {{env KEY DEFAULT}}
  • Retrieves the value of the environment variable named by the KEY. If such environment variable not defined or its value is empty, DEFAULT is used.
• ipv4 {{ipv4 KEY...}}
  • Resolve the IPv4 address suitable for given KEY. KEY is a interface name or prefix of a IP address. KEY can be specified multiple times. In this case, the first matching non-empty IP address is used.
• ipv6 {{ipv6 KEY...}}
  • Same as ipv4 but resolves IPv6 address.

Quick start

pave -c 'echo {{env "USER"}} {{ipv4 "eth0" "en0"}}'

Usage

Usage:
  pave [OPTIONS]

Application Options:
  -f, --file=         Files to be rendered
  -c, --command=      Commands to be executed
  -r, --restart=      Restart strategy (none|always|error)
  -w, --restart-wait= Duration for restarting

Help Options:
  -h, --help          Show this help message