module-nginx/manifests/resource/upstream.pp

111 lines
3.4 KiB
Puppet

# define: nginx::resource::upstream
#
# This definition creates a new upstream proxy entry for NGINX
#
# Parameters:
# [*members*] - Array of member URIs for NGINX to connect to. Must follow valid NGINX syntax.
# If omitted, individual members should be defined with nginx::resource::upstream::member
# [*ensure*] - Enables or disables the specified location (present|absent)
# [*upstream_cfg_prepend*] - It expects a hash with custom directives to put before anything else inside upstream
# [*upstream_fail_timeout*] - Set the fail_timeout for the upstream. Default is 10 seconds - As that is what Nginx does normally.
# [*upstream_max_fails*] - Set the max_fails for the upstream. Default is to use nginx default value which is 1.
#
# Actions:
#
# Requires:
#
# Sample Usage:
# nginx::resource::upstream { 'proxypass':
# ensure => present,
# members => [
# 'localhost:3000',
# 'localhost:3001',
# 'localhost:3002',
# ],
# }
#
# Custom config example to use ip_hash, and 20 keepalive connections
# create a hash with any extra custom config you want.
# $my_config = {
# 'ip_hash' => '',
# 'keepalive' => '20',
# }
# nginx::resource::upstream { 'proxypass':
# ensure => present,
# members => [
# 'localhost:3000',
# 'localhost:3001',
# 'localhost:3002',
# ],
# upstream_cfg_prepend => $my_config,
# }
define nginx::resource::upstream (
$members = undef,
$ensure = 'present',
$upstream_cfg_prepend = undef,
$upstream_fail_timeout = '10s',
$upstream_max_fails = undef,
$upstream_context = 'http',
) {
if $members != undef {
validate_array($members)
}
validate_re($ensure, '^(present|absent)$',
"${ensure} is not supported for ensure. Allowed values are 'present' and 'absent'.")
validate_re($upstream_context, '^(http|stream)$',
"${upstream_context} is not supported for upstream_context. Allowed values are 'http' and 'stream'.")
if ($upstream_cfg_prepend != undef) {
validate_hash($upstream_cfg_prepend)
}
$root_group = $::nginx::config::root_group
$ensure_real = $ensure ? {
'absent' => absent,
default => present,
}
$conf_dir_real = $upstream_context ? {
'stream' => 'conf.stream.d',
default => 'conf.d',
}
Concat {
owner => 'root',
group => $root_group,
mode => '0644',
}
concat { "${::nginx::config::conf_dir}/${conf_dir_real}/${name}-upstream.conf":
ensure => $ensure_real,
notify => Class['::nginx::service'],
}
# Uses: $name, $upstream_cfg_prepend
concat::fragment { "${name}_upstream_header":
target => "${::nginx::config::conf_dir}/${conf_dir_real}/${name}-upstream.conf",
order => '10',
content => template('nginx/conf.d/upstream_header.erb'),
}
if $members != undef {
# Uses: $members, $upstream_fail_timeout
concat::fragment { "${name}_upstream_members":
target => "${::nginx::config::conf_dir}/${conf_dir_real}/${name}-upstream.conf",
order => '50',
content => template('nginx/conf.d/upstream_members.erb'),
}
} else {
class { 'nginx::resource::upstream::collect':
# Collect exported members
upstream_name => $name,
}
}
concat::fragment { "${name}_upstream_footer":
target => "${::nginx::config::conf_dir}/${conf_dir_real}/${name}-upstream.conf",
order => '90',
content => "}\n",
}
}