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# == Define: python::requirements
#
# Installs and manages Python packages from requirements file.
#
# === Parameters
#
# [*requirements*]
# Path to the requirements file. Defaults to the resource name
#
# [*virtualenv*]
# virtualenv to run pip in. Default: system-wide
#
# [*owner*]
# The owner of the virtualenv being manipulated. Default: root
#
# [*group*]
# The group relating to the virtualenv being manipulated. Default: root
#
# [*proxy*]
# Proxy server to use for outbound connections. Default: none
#
# [*src*]
# Pip --src parameter; if the requirements file contains --editable resources,
# this parameter specifies where they will be installed. See the pip
# documentation for more. Default: none (i.e. use the pip default).
#
# [*environment*]
# Additional environment variables required to install the packages. Default: none
#
# [*forceupdate*]
# Run a pip install requirements even if we don't receive an event from the
# requirements file - Useful for when the requirements file is written as part of a
# resource other than file (E.g vcsrepo)
#
# [*cwd*]
# The directory from which to run the "pip install" command. Default: undef
#
# === Examples
#
# python::requirements { '/var/www/project1/requirements.txt':
# virtualenv => '/var/www/project1',
# proxy => 'http://proxy.domain.com:3128',
# }
#
# === Authors
#
# Sergey Stankevich
# Ashley Penney
# Fotis Gimian
#
define python::requirements (
$requirements = $name,
$virtualenv = 'system',
$owner = 'root',
$group = 'root',
$proxy = false,
$src = false,
$environment = [],
$forceupdate = false,
$cwd = undef,
) {
if $virtualenv == 'system' and ($owner != 'root' or $group != 'root') {
fail('python::pip: root user must be used when virtualenv is system')
}
$rootdir = $virtualenv ? {
'system' => '/',
default => $virtualenv,
}
$pip_env = $virtualenv ? {
'system' => 'pip',
default => "${virtualenv}/bin/pip",
}
$proxy_flag = $proxy ? {
false => '',
default => "--proxy=${proxy}",
}
$src_flag = $src ? {
false => '',
default => "--src=${src}",
}
# This will ensure multiple python::virtualenv definitions can share the
# the same requirements file.
if !defined(File[$requirements]) {
file { $requirements:
ensure => present,
mode => '0644',
owner => $owner,
group => $group,
audit => content,
replace => false,
content => '# Puppet will install and/or update pip packages listed here',
}
}
exec { "python_requirements${name}":
provider => shell,
command => "${pip_env} --log ${rootdir}/pip.log install ${proxy_flag} ${src_flag} -r ${requirements}",
refreshonly => !$forceupdate,
timeout => 1800,
cwd => $cwd,
user => $owner,
subscribe => File[$requirements],
environment => $environment,
}
}
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