procfile-util

A tool for interacting with Procfiles.

Installation

Install it using the “go get” command:

go get github.com/dokku/procfile-util

What is a Procfile

See PROCFILE_FORMAT.md for more details on the general format.

Usage

All commands take a -P or --procfile flag to specify an alternative Procfile path. If not specified, procfile-util will attempt to read the Procfile from the current directory.

check

check that the specified procfile is valid

procfile-util check

delete

delete a process type from a procfile

This command does not retain comments or extra newline characters. Specifying both the write-path and stdout flags will result in an error.

# delete the web process and write the file
procfile-util delete --process web

# delete the web process and write output to other.Procfile
procfile-util delete --process web --write-path other.Procfile

# delete the web process and write output to stdout
procfile-util delete --process web --stdout

exists

check if a process type exists

# returns 0 if the web process type exists
procfile-util exists -p web

# returns 1 if the non-existent process type does not exist
procfile-util exists -p non-existent

expand

expands a procfile against a specific environment

# expand variables with no implicit env vars
# will result in empty string for variable replacements
procfile-util expand

# specify a default-port to use (default: 5000)
procfile-util expand --default-port 3000

# expand variables with getenv used for variable expansion
# may use any variable available when executing procfile-util
procfile-util expand --allow-getenv

# expand variables with a parsed .env file used for variable expansion
procfile-util expand --env-file .env

# combines getenv and .env file parsing to provide variable expansion
procfile-util expand --allow-getenv --env-file .env

# specify the default-port when performing variable expansion
procfile-util expand --allow-getenv --env-file .env --default-port 3000

export

export the application to another process management format

Due to argument parsing limitations, the --location flag is currently required.

In addition, not all formats support all arguments, and not all arguments have examples below.

# export systemd init files to the `tmp` directory
# support formats include: [launchd, runit, systemd, systemd-user, sysv, upstart]
# the default format is: systemd
procfile-util export --format systemd --location tmp

# override the app name
procfile-util export --location tmp --app node-js-app

# set the group and user used to launch processes
procfile-util export --location tmp --group root --user root

# set a working directory path for the process
procfile-util export --location tmp --working-directory /root

list

list all process types in a procfile

procfile-util list

set

set the command for a process type in a procfile