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class sysctl {
# root exploit fix, see http://wiki.debian.org/mmap_min_addr
# TODO: remove in the future or use a sysctl puppet module
file { "/etc/sysctl.d/mmap_min_addr.conf":
owner => "root",
group => "root",
mode => 0644,
ensure => present,
content => "vm.mmap_min_addr = 4096\n",
}
# see http://www.linux-vserver.org/Frequently_Asked_Questions
file { "/etc/sysctl.d/net.ipv4.conf.all.promote_secondaries.conf":
owner => "root",
group => "root",
mode => 0644,
ensure => present,
content => "net.ipv4.conf.all.promote_secondaries = 1\n",
}
exec { "/etc/init.d/procps restart":
subscribe => File["/etc/sysctl.d/mmap_min_addr.conf", "/etc/sysctl.d/net.ipv4.conf.all.promote_secondaries.conf"],
refreshonly => true,
}
$printk_levels = '3 4 1 3'
file { "/etc/sysctl.d/kernel.printk.conf":
owner => "root",
group => "root",
mode => 0644,
ensure => present,
content => "kernel.printk = ${printk_levels}\n",
}
exec { "/bin/echo '${printk_levels}' > /proc/sys/kernel/printk":
subscribe => File["/etc/sysctl.d/kernel.printk.conf"],
refreshonly => true,
}
}
class sysctl::appliance($kernel_panic = hiera('nodo::sysctl::appliance', '20')) {
file { "/etc/sysctl.d/kernel.panic.conf":
owner => "root",
group => "root",
mode => 0644,
ensure => present,
content => "kernel.panic = ${kernel_panic}\n",
}
exec { "/bin/echo '${kernel_panic}' > /proc/sys/kernel/panic":
subscribe => File["/etc/sysctl.d/kernel.panic.conf"],
refreshonly => true,
}
}
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