openstack/fuel-library
Code Issues Proposed changes

Increase settings for dnsmasq and sysctl

Browse Source 
* Make a new variable dhcp_lease_max. It increases the number of
  available leases from 1000 to 1800. It allows to provision nodes on
  scale, when Debian Installer or Anaconda looses IP in the middle of
  install.
* Make a new variable lease_time. It increases the default lease size
  to 120m, up from the default 60m.
* Add cache-size to dnsmasq template. dnsmasq will keep more entries in
  case.
* Increased neighbour table on master node to keep more ARP requests
  that come in parallel once deployment is started. This change also
  removes unneed broadcast traffic. New values are:
  net.ipv4.neigh.default.gc_thresh1 = 256
  net.ipv4.neigh.default.gc_thresh2 = 1024
  net.ipv4.neigh.default.gc_thresh3 = 2048
* Fix linting

Related-Bug: #1376680
Related-Bug: #1379917
Related-Bug: #1381997
blueprint 100-nodes-support
DocImpact

Change-Id: I4da8070143e401f7a9246e72eda35e601b8c6386
This commit is contained in:
Sergii Golovatiuk 2014-10-16 16:27:18 +02:00
parent efb1f34cbd
commit 3070f3fa3c
3 changed files with 143 additions and 118 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

158
deployment/puppet/cobbler/manifests/server.pp
View File

@ -11,14 +11,27 @@
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
# == Class: cobbler::server
#
# Installs cobbler package and service
#
# == Parameters:
#
# [*dhcp_lease_max*]
# (optional) Sets the maximum number of leases available in dnsmasq.
#
# [*lease_time*]
# (optional) Sets the default lease time for DHCP clients.
class cobbler::server (
$production = 'prod',
$domain_name = 'local',
$dns_search = 'local',
$dns_domain = 'local',
$dns_upstream = '8.8.8.8',
$production = 'prod',
$domain_name = 'local',
$dns_search = 'local',
$dns_domain = 'local',
$dns_upstream = '8.8.8.8',
$dhcp_lease_max = '1800',
$lease_time = '120m',
) {
include cobbler::packages
@ -26,69 +39,74 @@ class cobbler::server (
path => '/usr/bin:/bin:/usr/sbin:/sbin'
}
case $operatingsystem {
case $::operatingsystem {
/(?i)(centos|redhat)/ : {
$cobbler_service = "cobblerd"
$cobbler_web_service = "httpd"
$dnsmasq_service = "dnsmasq"
$cobbler_service = 'cobblerd'
$cobbler_web_service = 'httpd'
$dnsmasq_service = 'dnsmasq'
service { "xinetd":
enable => true,
service { 'xinetd':
ensure => running,
enable => true,
hasrestart => true,
require => Package[$cobbler::packages::cobbler_additional_packages],
}
file { "/etc/xinetd.conf":
content => template("cobbler/xinetd.conf.erb"),
owner => root,
group => root,
mode => 0600,
file { '/etc/xinetd.conf':
content => template('cobbler/xinetd.conf.erb'),
owner => 'root',
group => 'root',
mode => '0600',
require => Package[$cobbler::packages::cobbler_additional_packages],
notify => Service["xinetd"],
notify => Service['xinetd'],
}
}
/(?i)(debian|ubuntu)/ : {
$cobbler_service = "cobbler"
$cobbler_web_service = "apache2"
$dnsmasq_service = "dnsmasq"
$apache_ssl_module = "ssl"
$cobbler_service = 'cobbler'
$cobbler_web_service = 'apache2'
$dnsmasq_service = 'dnsmasq'
$apache_ssl_module = 'ssl'
}
default : {
fail('Unsupported OS')
}
}
File['/etc/cobbler/modules.conf'] -> File['/etc/cobbler/settings'] ->
Service[$cobbler_service] -> Exec["cobbler_sync"] -> Service[$dnsmasq_service]
Service[$cobbler_service] ->
Exec['cobbler_sync'] ->
Service[$dnsmasq_service]
if $production !~ /docker/ {
service { $cobbler_service:
enable => true,
ensure => running,
enable => true,
hasrestart => true,
require => Package[$cobbler::packages::cobbler_package],
}
service { $dnsmasq_service:
enable => true,
ensure => running,
enable => true,
hasrestart => true,
require => Package[$cobbler::packages::dnsmasq_package],
subscribe => Exec["cobbler_sync"],
subscribe => Exec['cobbler_sync'],
}
} else {
service { $cobbler_service:
enable => true,
ensure => running,
enable => true,
hasrestart => true,
require => Package[$cobbler::packages::cobbler_package],
}
service { $dnsmasq_service:
enable => false,
ensure => false,
enable => false,
hasrestart => true,
require => Package[$cobbler::packages::dnsmasq_package],
subscribe => Exec["cobbler_sync"],
subscribe => Exec['cobbler_sync'],
}
}
if $apache_ssl_module {
@ -107,13 +125,13 @@ class cobbler::server (
}
service { $cobbler_web_service:
enable => true,
ensure => running,
enable => true,
hasrestart => true,
require => Package[$cobbler::packages::cobbler_web_package],
}
exec { "wait_for_web_service":
exec { 'wait_for_web_service':
command => '[ $(curl --connect-timeout 1 -s -w %{http_code} http://127.0.0.1:80/ -o /dev/null) -lt 500 ]',
require => Service[$cobbler_web_service],
subscribe => Service[$cobbler_web_service],
@ -121,8 +139,8 @@ class cobbler::server (
try_sleep => 1,
}
exec { "cobbler_sync":
command => "cobbler sync",
exec { 'cobbler_sync':
command => 'cobbler sync',
refreshonly => false,
require => [
Service[$cobbler_web_service],
@ -131,71 +149,71 @@ class cobbler::server (
Package[$cobbler::packages::dnsmasq_package],
File['/etc/dnsmasq.upstream']],
subscribe => Service[$cobbler_service],
notify => [Service[$dnsmasq_service], Service["xinetd"]],
notify => [Service[$dnsmasq_service], Service['xinetd']],
tries => 20,
try_sleep => 3,
}
file { "/etc/cobbler/modules.conf":
content => template("cobbler/modules.conf.erb"),
owner => root,
group => root,
mode => 0644,
require => [Package[$cobbler::packages::cobbler_package],],
notify => [Service[$cobbler_service], Exec["cobbler_sync"],],
file { '/etc/cobbler/modules.conf':
content => template('cobbler/modules.conf.erb'),
owner => 'root',
group => 'root',
mode => '0644',
require => [Package[$cobbler::packages::cobbler_package]],
notify => [Service[$cobbler_service], Exec['cobbler_sync']],
}
file { "/etc/cobbler/settings":
content => template("cobbler/settings.erb"),
owner => root,
group => root,
mode => 0644,
file { '/etc/cobbler/settings':
content => template('cobbler/settings.erb'),
owner => 'root',
group => 'root',
mode => '0644',
require => Package[$cobbler::packages::cobbler_package],
notify => [Service[$cobbler_service], Exec["cobbler_sync"],],
notify => [Service[$cobbler_service], Exec['cobbler_sync']],
}
file { "/etc/cobbler/dnsmasq.template":
content => template("cobbler/dnsmasq.template.erb"),
owner => root,
group => root,
mode => 0644,
file { '/etc/cobbler/dnsmasq.template':
content => template('cobbler/dnsmasq.template.erb'),
owner => 'root',
group => 'root',
mode => '0644',
require => [
Package[$cobbler::packages::cobbler_package],
Package[$cobbler::packages::dnsmasq_package],],
Package[$cobbler::packages::dnsmasq_package]],
notify => [
Service[$cobbler_service],
Exec["cobbler_sync"],
Exec['cobbler_sync'],
Service[$dnsmasq_service],],
}
file { "/etc/cobbler/pxe/pxedefault.template":
content => template("cobbler/pxedefault.template.erb"),
owner => root,
group => root,
mode => 0644,
file { '/etc/cobbler/pxe/pxedefault.template':
content => template('cobbler/pxedefault.template.erb'),
owner => 'root',
group => 'root',
mode => '0644',
require => Package[$cobbler::packages::cobbler_package],
notify => [Service[$cobbler_service], Exec["cobbler_sync"],],
notify => [Service[$cobbler_service], Exec['cobbler_sync']],
}
file { "/etc/cobbler/pxe/pxelocal.template":
content => template("cobbler/pxelocal.template.erb"),
owner => root,
group => root,
mode => 0644,
file { '/etc/cobbler/pxe/pxelocal.template':
content => template('cobbler/pxelocal.template.erb'),
owner => 'root',
group => 'root',
mode => '0644',
require => Package[$cobbler::packages::cobbler_package],
notify => [Service[$cobbler_service], Exec["cobbler_sync"],],
notify => [Service[$cobbler_service], Exec['cobbler_sync']],
}
exec { "/var/lib/tftpboot/chain.c32":
command => "cp /usr/share/syslinux/chain.c32 /var/lib/tftpboot/chain.c32",
unless => "test -e /var/lib/tftpboot/chain.c32",
exec { '/var/lib/tftpboot/chain.c32':
command => 'cp /usr/share/syslinux/chain.c32 /var/lib/tftpboot/chain.c32',
unless => 'test -e /var/lib/tftpboot/chain.c32',
require => [
Package[$cobbler::packages::cobbler_additional_packages],
Package[$cobbler::packages::cobbler_package],]
}
file { '/etc/dnsmasq.upstream':
content => template("cobbler/dnsmasq.upstream.erb"),
content => template('cobbler/dnsmasq.upstream.erb'),
owner => 'root',
group => 'root',
mode => '0644',

6
deployment/puppet/cobbler/templates/dnsmasq.template.erb
View File

@ -8,12 +8,14 @@ log-queries
log-facility=/var/log/dnsmasq.log
addn-hosts = /var/lib/cobbler/cobbler_hosts
domain=<%= @domain_name %>
dhcp-lease-max=1000
dhcp-lease-max=<%= @dhcp_lease_max %>
server=/<%= @domain_name %>/
resolv-file=/etc/dnsmasq.upstream
dhcp-match=gpxe,175
interface=<%= @dhcp_interface %>
cache-size=1024
# This is one of the key options. dnsmasq tries to move out servername
# and PXE filename from special fields into DHCP options.
# Some old clients can't understand those DHCP options, so they
@ -28,7 +30,7 @@ dhcp-sequential-ip
dhcp-option=6,<%= @name_server %>
dhcp-range=internal,<%= @dhcp_start_address %>,<%= @dhcp_end_address %>,<%= @dhcp_netmask %>
dhcp-range=internal,<%= @dhcp_start_address %>,<%= @dhcp_end_address %>,<%= @dhcp_netmask %>,<%= @lease_time %>
dhcp-option=net:internal,option:router,<%= @dhcp_gateway %>
pxe-service=net:#gpxe,x86PC,"Install",pxelinux,<%= @next_server %>
dhcp-boot=net:internal,pxelinux.0,boothost,<%= @next_server %>

97
deployment/puppet/nailgun/manifests/host.pp
View File

@ -1,79 +1,84 @@
class nailgun::host(
$production,
$cobbler_host = '127.0.0.1',
$dns_search = "domain.tld",
$dns_domain = "domain.tld",
$nailgun_group = "nailgun",
$nailgun_user = "nailgun",
$gem_source = "http://localhost/gems/",
)
{
$dns_search = 'domain.tld',
$dns_domain = 'domain.tld',
$nailgun_group = 'nailgun',
$nailgun_user = 'nailgun',
$gem_source = 'http://localhost/gems/',
) {
#Enable cobbler's iptables rules even if Cobbler not called
include cobbler::iptables
Exec {path => '/usr/bin:/bin:/usr/sbin:/sbin'}
firewall { '002 accept related established rules':
proto => 'all',
state => ['RELATED', 'ESTABLISHED'],
action => 'accept',
proto => 'all',
state => ['RELATED', 'ESTABLISHED'],
action => 'accept',
} ->
class { "nailgun::iptables": }
class { 'nailgun::iptables': }
nailgun::sshkeygen { "/root/.ssh/id_rsa":
homedir => "/root",
username => "root",
groupname => "root",
keytype => "rsa",
nailgun::sshkeygen { '/root/.ssh/id_rsa':
homedir => '/root',
username => 'root',
groupname => 'root',
keytype => 'rsa',
}
file { "/etc/ssh/sshd_config":
content => template("nailgun/sshd_config.erb"),
owner => 'root',
group => 'root',
mode => '0600',
file { '/etc/ssh/sshd_config':
content => template('nailgun/sshd_config.erb'),
owner => 'root',
group => 'root',
mode => '0600',
}
file { "/root/.ssh/config":
content => template("nailgun/root_ssh_config.erb"),
owner => 'root',
group => 'root',
mode => '0600',
file { '/root/.ssh/config':
content => template('nailgun/root_ssh_config.erb'),
owner => 'root',
group => 'root',
mode => '0600',
}
file { "/var/log/remote":
file { '/var/log/remote':
ensure => directory,
owner => 'root',
group => 'root',
mode => '0750',
owner => 'root',
group => 'root',
mode => '0750',
}
file { "/var/www/nailgun/dump":
file { '/var/www/nailgun/dump':
ensure => directory,
owner => 'root',
group => 'root',
mode => '0755',
owner => 'root',
group => 'root',
mode => '0755',
}
file { "/etc/dhcp/dhcp-enter-hooks":
content => template("nailgun/dhcp-enter-hooks.erb"),
owner => 'root',
group => 'root',
mode => '0755',
file { '/etc/dhcp/dhcp-enter-hooks':
content => template('nailgun/dhcp-enter-hooks.erb'),
owner => 'root',
group => 'root',
mode => '0755',
}
file { "/etc/resolv.conf":
content => template("nailgun/resolv.conf.erb"),
owner => 'root',
group => 'root',
mode => '0644',
file { '/etc/resolv.conf':
content => template('nailgun/resolv.conf.erb'),
owner => 'root',
group => 'root',
mode => '0644',
}
file { '/etc/dhcp/dhclient.conf':
content => template("nailgun/dhclient.conf.erb"),
content => template('nailgun/dhclient.conf.erb'),
owner => 'root',
group => 'root',
mode => '0644',
}
#Suppress kernel messages to console
sysctl::value{'kernel.printk': value=>'4 1 1 7'}
sysctl::value{'kernel.printk': value => '4 1 1 7'}
#Increase values for neighbour table
sysctl::value{'net.ipv4.neigh.default.gc_thresh1': value => '256'}
sysctl::value{'net.ipv4.neigh.default.gc_thresh2': value => '1024'}
sysctl::value{'net.ipv4.neigh.default.gc_thresh3': value => '2048'}
}