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ulimit (13) Versions 1.0.0

Resources for manaing ulimits

Berkshelf
Policyfile
Knife
cookbook 'ulimit', '~> 1.0.0'
cookbook 'ulimit', '~> 1.0.0', :supermarket
knife cookbook site install ulimit
knife cookbook site download ulimit
README
Dependencies
Changelog
Quality 88%

ulimit Cookbook

Build Status Cookbook Version

This cookbook provides resources for managing ulimits configuration on nodes.

  • user_ulimit resource for overriding various ulimit settings. It places configured templates into /etc/security/limits.d/, named for the user the ulimit applies to.
  • ulimit_domain which allows for configuring complex sets of rules beyond those supported by the user_ulimit resource.

The cookbook also includes a recipe (default.rb) which allows ulimit overrides with the 'su' command on Ubuntu.

Requirements

Platforms

  • Debian/Ubuntu and derivatives
  • RHEL/Fedora and derivatives

Chef

  • Chef 12.7+

Cookbooks

  • none

Attributes

  • node['ulimit']['pam_su_template_cookbook'] - Defaults to nil (current cookbook). Determines what cookbook the su pam.d template is taken from
  • node['ulimit']['users'] - Defaults to empty Mash. List of users with their limits, as below.

Default Recipe

Instead of using the user_ulimit resource directly you may define user ulimits via node attributes. The definition may be made via an environment file, a role file, or in a wrapper cookbook. Note: The preferred way to use this cookbook is by directly defining resources as it is much easier to troubleshoot and far more robust.

Example role configuration:

"default_attributes": {
   "ulimit": {
      "users": {
         "tomcat": {
            "filehandle_limit": 8193,
               "process_limit": 61504
             },
            "hbase": {
               "filehandle_limit": 32768
             }
       }
    }
 }

To specify a change for all users change specify a wildcard resource or user name like so user_ulimit "*"

Resources

user_ulimit

The user_ulimit resource creates individual ulimit files that are installed into the /etc/security/limits.d/ directory.

Actions:

  • create
  • delete

Properties

  • username - Optional property to set the username if the resource name itself is not the username. See the example below.
  • filename - Optional filename to use instead of naming the file based on the username
  • filehandle_limit -
  • filehandle_soft_limit -
  • filehandle_hard_limit -
  • process_limit -
  • process_soft_limit -
  • process_hard_limit -
  • memory_limit -
  • core_limit -
  • core_soft_limit -
  • core_hard_limit -
  • stack_soft_limit -
  • stack_hard_limit -
  • rtprio_limit -
  • rtprio_soft_limit -
  • rtprio_hard_limit -

Examples

Example of a resource where the resource name is the username:

user_ulimit "tomcat" do
  filehandle_limit 8192 # optional
  filehandle_soft_limit 8192 # optional; not used if filehandle_limit is set)
  filehandle_hard_limit 8192 # optional; not used if filehandle_limit is set)
  process_limit 61504 # optional
  process_soft_limit 61504 # optional; not used if process_limit is set)
  process_hard_limit 61504 # optional; not used if process_limit is set)
  memory_limit 1024 # optional
  core_limit 2048 # optional
  core_soft_limit 1024 # optional
  core_hard_limit 'unlimited' # optional
  stack_soft_limit 2048 # optional
  stack_hard_limit 2048 # optional
  rtprio_limit 60 # optional
  rtprio_soft_limit 60 # optional
  rtprio_hard_limit 60 # optional
end

Example where the resource name is not the username:

user_ulimit 'set filehandle ulimits for our tomcat user' do
  username 'tomcat'
  filehandle_soft_limit 8192
  filehandle_hard_limit 8192
end

ulimit_domain

Note: The ulimit_domain resource creates files named after the domain with no modifiers by default. To override this behavior, specify the filename parameter to the resource.

Actions:

  • create
  • delete

Examples:

ulimit_domain 'my_user' do
  rule do
    item :nofile
    type :hard
    value 10000
  end
  rule do
    item :nofile
    type :soft
    value 5000
  end
end

Dependent cookbooks

This cookbook has no specified dependencies.

Contingent cookbooks

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cerner_kafka Applicable Versions
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clickhouse Applicable Versions
common_linux Applicable Versions
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hadoop Applicable Versions
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redisio Applicable Versions
resin Applicable Versions
riak Applicable Versions
riak-cs Applicable Versions
solrcloud Applicable Versions
stack-base Applicable Versions
thumbor_ng Applicable Versions
trafficserver Applicable Versions

CHANGELOG for ulimit

This file is used to list changes made in each version of ulimit.

1.0.0

  • Breaking change: This cookbook now requires Chef 12.7 or later
  • LWRPs converted to custom resources with Chef 13 compatibility
  • Added the rtprio property to the user resource
  • Updated the cookbook to not append .conf onto filenames when the user already specified a name that ends in .conf
  • Added a chefignore file to limit what files get uploaded to the chef server
  • Added a Test Kitchen config + InSpec tests for unit testing
  • Added the license file to the repo to resolve a Foodcritic warning
  • Added a Berksfile
  • Resolved all cookstyle warnings
  • Fixed the metadata license string to be an SPDX standard license string to resolve Foodcritic warnings
  • Add supports, source_url, issues_url, and chef_version metadata to resolve Foodcritic warnings
  • Switched the default recipe from platform to platform_family to catch more Debian/Ubuntu derivatives
  • Added testing with ChefDK's delivery local mode in Travis
  • Expanded the readme with better information on requirements and usage examples
  • Removed ChefSpec matchers that are autogenerated by ChefSpec now
  • Added Cookstyle and autocorrected all code
  • Added a basic ChefSpec unit test

0.3.2

0.3.1

0.3.0

0.2.0

  • Support specifying users via attributes (as long as your runlist includes the ulimit::default recipe). Thanks to Dmytro Shteflyuk (https://github.com/kpumuk)

0.1.5

0.1.4:

0.1.3:

  • Adds node attribute node['ulimit']['pam_su_template_cookbook'] to allow users to provide a su pam.d template from another cookbook

0.1.2:

0.1.0:

  • Initial release of ulimit

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