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Cookbook for automated Knot.x deployment
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README.md

knotx-cookbook

This cookbook installs knot.x

Table of contents

Supported platforms

Operating systems

  • CentOS/RHEL 6.x
  • CentOS/RHEL 7.x

Chef versions

  • Chef 13.x
  • Chef 14.x

knot.x versions


IMPORTANT

If you're using knot.x 1.1.x or 1.2.x please stick to 0.4.x version of this cookbook!


  • knot.x 1.3.x
  • knot.x 1.4.x
  • knot.x 1.5.x

Attributes

knotx.rb

  • ['knotx']['user'] - user that runs knot.x service
  • ['knotx']['group'] - group that owns knot.x service
  • ['knotx']['base_dir'] - top level installation directory for all knot.x instance
  • ['knotx']['log_dir'] - top level log directory for all knot.x instances
  • ['knotx']['open_file_limit']- number of maximum file descriptors service user can open
  • ['knotx']['log_level']['root'] - default log level for all knot.x modules
  • ['knotx']['log_level']['knotx'] - log level for io.knotx modules
  • ['knotx']['log_history']['knotx'] - maximum age (in days) for knot.x logs
  • ['knotx']['log_history']['access'] - maximum age (in days) for knot.x access log
  • ['knotx']['log_size']['knotx'] - maximum file size of knot.x log file
  • ['knotx']['log_size']['access'] - maximum file size of knot.x access log file
  • ['knotx']['release_url'] - base URL used to calculate download URL when only version was specified
  • ['knotx']['min_heap'] - -Xms JVM parameter (in MB)
  • ['knotx']['max_heap'] - -Xmx JVM parameter (in MB)
  • ['knotx']['extra_opts'] - custom JVM parameters you'd like to add upon service start
  • ['knotx']['gc_opts'] - Garbage Collector JVM options
  • ['knotx']['jmx_enabled'] - defines whether JMX should be enabled or not
  • ['knotx']['jmx_ip'] - IP on which JMX interface should listen on
  • ['knotx']['jmx_port'] - port of JMX interface
  • ['knotx']['debug_enabled'] - defines whether JVM debugging interface is enabled or not
  • ['knotx']['debug_port'] - port of JVM debug interface
  • ['knotx']['instance_opts'] - custom parameters you'd like to pass to knotx command
  • ['knotx']['source']['knotx_init_cookbook'] - cookbook where SysVinit script is located
  • ['knotx']['source']['knotx_init_path'] path under templates where SysVinit script is located
  • ['knotx']['source']['knotx_systemd_cookbook'] - cookbook where systemd unit file is located
  • ['knotx']['source']['knotx_systemd_path'] - path under templates where systemd unit file is located
  • ['knotx']['source']['knotx_ulimit_cookbook'] - cookbook where ulimit template file is located
  • ['knotx']['source']['knotx_ulimit_path'] - path under tamplates where ulimit file is placed
  • ['knotx']['source']['knotx_conf_cookbook'] - cookbook where knot.x JVM settings file is placed
  • ['knotx']['source']['knotx_conf_path'] - path to knot.x JVM template within a cookbook
  • ['knotx']['source']['logback_xml_cookbook'] - cookbook where logback.xml template is placed
  • ['knotx']['source']['logback_xml_path'] - path to logback.xml template within a cookbook

commons.rb

Attributes from java cookbook

Custom resources

knotx_instance

Properties

  • id - knot.x instance ID (derived from resource name by default)
  • version - knot.x version to deploy (uses ['knotx']['release_url'] to calculate download URL)
  • source - full URL to knot.x ZIP distribution package. Overwrites version
  • install_dir - where knot.x instance should be deployed. If not set, knot.x gets deployed to ['knotx']['base_dir']/id directory
  • log_dir - directory where all logs will be stored. If not set logs are written to ['knotx']['log_dir']/id directory
  • custom_logback - logback.xml used to be delivered with ZIP distribution package, however most of the time this is not what you want, as stdout is commonly used as an output there. This property accepts boolean values ( true by default) and generates logback.xml according to attributes

Customizations

It is possible to deploy more than 1 knot.x instance on a single server. To set that up you must ensure that each instance has unique ID and there's no conflicting port assignments.

Instance specific properties can be set using special attribute convention. Attributes defined this way overwrite the ones without ID in the name. See example below for more details:

# If none of below attributes is defined the following ones will be used:
# * default['knotx']['jmx_port']
# * default['knotx']['debug_port']
# * default['knotx']['port']
default['knotx']['main2']['jmx_port'] = '18093'
default['knotx']['main2']['debug_port'] = '28093'
default['knotx']['main2']['port'] = '8093'

The following attributes can be set this way:

  • node['knotx'][ID]['min_heap']
  • node['knotx'][ID]['max_heap']
  • node['knotx'][ID]['extra_opts']
  • node['knotx'][ID]['gc_opts']
  • node['knotx'][ID]['jmx_enabled']
  • node['knotx'][ID]['jmx_ip']
  • node['knotx'][ID]['jmx_port']
  • node['knotx'][ID]['debug_enabled']
  • node['knotx'][ID]['debug_port']
  • node['knotx'][ID]['instance_opts']

Usage scenarios

Simple installation

include_recipe 'knotx::commons'

knotx_instance 'Knotx Main: Install' do
  id 'main'
  version '1.0.0-RC2'
end

Multiple instances

include_recipe 'knotx::commons'

# Nearly all settings (except logging ones) are derived either from default
# attributes or configuration files shipped with knotx-stack distribution
knotx_instance 'Primary knot.x instance' do
  id 'primary'
  source node['knotx']['url']
end

# Use attributes to overwrite default parameters
node.default['knotx']['secondary']['extra_opts'] = '-Dknotx.port=8093'
node.default['knotx']['secondary']['jmx_port'] = '18093'
node.default['knotx']['secondary']['debug_enabled'] = true
node.default['knotx']['secondary']['debug_port'] = '28093'

knotx_instance 'Secondary knot.x instance' do
  id 'secondary'
  source node['knotx']['url']
end

Knot.x stack package

Cookbook installs Knot.x instance that base on knotx-stack distribution. The structure of the package must keep following structure:

.
└── ** (any folder name, e.g. `my-stack` or `knotx`)
   ├── conf
   └── lib

There should be only one top level folder (e.g. my-stack or knotx)

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