holdup 1.1.0

A tool to wait for services and execute command. Useful for Docker containers that depend on slow to start services (like almost everything).

A tool to wait for services and execute command. Useful for Docker containers that depend on slow to start services (like almost everything).

• Free software: BSD license

Installation

pip install holdup

Documentation

Usage: holdup [-h] [-t SECONDS] [-i SECONDS] [-n] service [service ...] [-- command [arg [arg ...]]]

Wait for services to be ready and optionally exec command.

positional arguments:

service A service to wait for. Supported protocols: “tcp://host:port/”, “unix:///path/to/domain.sock”. command An optional command to exec.

optional arguments:

-h, --help	Show this help message and exit.
-t SECONDS, --timeout SECONDS
	Time to wait for services to be ready. Default: 5.0
-i SECONDS, --interval SECONDS
	How often to check. Default: 0.2
-n, --no-abort	Ignore failed services. This makes holdup return 0 exit code regardless of services actually responding.

Development

To run the all tests run:

tox

Note, to combine the coverage data from all the tox environments run:

Windows	set PYTEST_ADDOPTS=--cov-append tox
Other	PYTEST_ADDOPTS=--cov-append tox

Changelog

1.1.0 (2016-05-06)

• Removed debug print.
• Added --interval option for how often to check. No more spinloops.

1.0.0 (2016-04-22)

• Improved tests.
• Always log to stderr.

0.1.0 (2016-04-21)

• First release on PyPI.