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consul-ng (5) Versions 0.2.0

Installs/Configures Hashicorp Consul

Berkshelf
Policyfile
Knife
cookbook 'consul-ng', '~> 0.2.0'
cookbook 'consul-ng', '~> 0.2.0', :supermarket
knife cookbook site install consul-ng
knife cookbook site download consul-ng
README
Dependencies
Changelog
Quality 75%

consul-ng Cookbook

CookbookBuild Status

This is a Chef cookbook to manage [Hashicorp Consul].

For Production environment, always prefer the most recent release.

Most Recent Release

cookbook 'consul-ng', '~> 0.2.0'

From Git

cookbook 'consul-ng', github: 'vkhatri/chef-consul-ng'

Repository

https://github.com/vkhatri/chef-consul-ng

Supported OS

This cookbook was tested on Amazon & Ubuntu & Centos7 Linux & Windows2012R2 and expected to work on other RHEL platforms.

Recipes

  • consul-ng::default - default recipe (use it for run_list)

  • consul-ng::user - setup consul user/group

  • consul-ng::install - install consul

  • consul-ng::install_windows - install consul on windows

  • consul-ng::config - configure consul

Attribute Driven Recipes

There are a set of helper recipes that can be run to create various configuration items. These recipes are driven by an Array of Hash attributes. The keys of each hash match the attributes for the corresponding resource. Only required attributes must be defined in each hash, others may be omitted. If node['consul']['notify_restart'] attribute is set to true, the consul service will be reloaded after changes are made.

  • consul-ng::acls - configure access control lists, defined in node['consul']['acls'][]

Configuring ACLs is dependent on whether your servers are setup to use them. ACLs can be quite complex so please refer to the Consul documentation for more information.

  • consul-ng::checks - configure health checks, defined in node['consul']['checks'][]

The following example creates two check definitions. The first calls a script created with the consul_script resource. The second is a simple http check against the local webserver.

default['consul']['checks'] = [
    {
        'name' => 'proxy_status',
        'notes' => 'Check the status of the proxy host',
        'script' => "#{node['consul']['script_dir']}/consul_script_proxy_status",
        'interval' => '10s'
    },
    {
        'name' => 'web_alive',
        'http' => 'http://localhost:8080/health',
        'interval' => '30s'
    }
]
  • consul-ng::scripts - deploy health check scripts, defined in node['consul']['scripts'][]

The following example creates two health check scripts, consul_script_proxy_status and consul_script_web_alive. The first is a self contained script. This example is intended to demonstrate the consul-ng::scripts recipe attribute syntax, but a simple http GET request would be better defined as a http type check directly in consul rather than calling an external script. The second example is using a the cookbook_file type to deploy a script directly from a cookbook resource.

default['consul']['scripts'] = [
    {
        'name' => 'proxy_status',
        'script_content' => 'curl -s http://localhost:80/health'
    },
    {
        'name' => 'web_alive',
        'cookbook' => 'consul-ng',
        'cookbook_file' => 'web-alive.sh.erb'
    }
]
  • consul-ng::services - configure services, defined in node['consul']['services'][]

The following example creates two service definition files, 100-service-web.json and 100-service-proxy.json.

default['consul']['services'] = [
    {
        'name' => 'proxy',
        'port' => 80,
        'address' => node['ipaddress']
    },
    {
        'name' => 'web',
        'port' => 8080,
        'address' => node['ipaddress'],
        'tags' => ['rails']
    }
]
  • consul-ng::watches - configure watches, defined in node['consul']['watches'][]
default['consul']['watches'] = [
    {
        'name' => 'proxy',
        'type' => 'key',
        'key' => 'proxy',
        'handler_type' => 'script',
        'args' => ['/path/to/handler-script.sh', '-connect', 'redis']
    },
    {
        'name' => 'web',
        'type' => 'nodes',
        'handler_type' => 'script',
        'args' => ['/path/to/node-handler.sh']
    }
]

Advanced Attributes

  • default['consul']['version'] (default: 1.1.0): consul version

  • default['consul']['packages'] (default: ['unzip']): package dependencies

  • default['consul']['notify_restart'] (default: true): whether to restart consul service on configuration file change

  • default['consul']['disable_service'] (default: false): whether to disable and stop consul service

  • default['consul']['package_url'] (default: auto): download consul package file from hashicorp package repository

  • default['consul']['webui_package_url'] (default: auto): download consul webui package file from hashicorp package repository, included in version 0.9.0+

  • default['consul']['sha256sum_override'] (default: nil): override the sha256sum for the consul installation package

  • default['consul']['setup_user'] (default: true): setup consul user / group

  • default['consul']['enable_webui'] (default: true): enable consul webui

  • default['consul']['enable_webui'] (default: true): enable consul webui

  • default['consul']['diplomat_gem_version'] (default: nil): diplomat chef gem version

  • default['consul']['install_diplomat_gem'] (default: true): install diplomat chef gem

  • default['consul']['configure'] (default: true): configure consul

  • default['consul']['install'] (default: true): install consul

  • default['consul']['windows_drive_letter'] (default: C:): set installation drive for Windows systems

Core Attributes

  • default['consul']['packages'] (default: ['unzip']): package dependencies

  • default['consul']['conf_dir'] (default: /etc/consul): consul configuration directory

  • default['consul']['conf_file'] (default: /etc/consul/000-consul.json): consul configuration file

  • default['consul']['parent_dir'] (default: /usr/local/consul): consul parent directory

  • default['consul']['pid_dir'] (default: /var/run/consul): consul service pid directory

  • default['consul']['log_dir'] (default: /var/log/consul): consul log directory

  • default['consul']['mode'] (default: 0754): default directory/file resources mode

  • default['consul']['umask'] (default: 0023): execute resource attribute

  • default['consul']['user'] (default: consul): user name

  • default['consul']['group'] (default: consul): group name

  • default['consul']['version_purge'] (default: false): purge older versions under node['consul']['parent_dir']

Configuration File 001-consul.json Attributes

  • default['consul']['config']['datacenter'] (default: nil): consul configuration attribute, need to set this attribute

  • default['consul']['config']['encrypt'] (default: nil): consul configuration attribute, need to set this attribute

  • default['consul']['config']['start_join'] (default: []): consul configuration attribute, set this attribute with consul servers ip address

  • default['consul']['config']['bootstrap'] (default: false): consul configuration attribute

  • default['consul']['config']['server'] (default: false): consul configuration attribute

  • default['consul']['config']['log_level'] (default: INFO): consul configuration attribute

  • default['consul']['config']['bind_addr'] (default: node['ipaddress']): consul configuration attribute

  • default['consul']['config']['client_addr'] (default: node['ipaddress']): consul configuration attribute

  • default['consul']['config']['ports']['server'] (default: 8300): consul port

  • default['consul']['config']['ports']['serf_lan'] (default: 8301): consul port

  • default['consul']['config']['ports']['serf_wan'] (default: 8302): consul port

  • default['consul']['config']['ports']['rpc'] (default: 8400): consul port, deprecated in version 0.8.0

  • default['consul']['config']['ports']['dns'] (default: 8600): consul port

  • default['consul']['config']['ports']['http'] (default: 8500): consul port

For more attribute info, visit below links:

http://www.consul.io/docs/agent/options.html

Custom Resources

consul_acl

The consul_acl resource takes care of provisioning access control lists.

Syntax


consul_acl 'web' do
    type 'client'
    rules {
        "node" => {
            "" => { "policy" => "read" },
            "app" => { "policy" => "write" },
            "admin" => { "policy" => "deny" }
        }
    }
    token '61f3889e-581b-46b2-903c-667baabf0c45'
end

The full syntax for all of the properties that are available to the consul_acl resource is:

consul_acl 'name' do
    id String
    url Array
    acl String # defaults to resource block name
    type String
    rules String, Hash
    token String # required
    action Symbol # defaults to :create if not specified
end

Actions


This resource has the following actions:

:create Default. Create the access control list item.

:delete Delete the access control list item.

:nothing Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the Chef Client run.

consul_check

The consul_check resource takes care of provisioning health checks. These items can be found in node['consul']['conf_dir']/101-check-<name>.json.

Syntax


consul_check 'mem-util' do
    id 'mem-util'
    args ["/usr/local/bin/check_mem.py", "-limit", "256MB"]
    interval '30s'
    timeout '1s'
end

The full syntax for all of the properties that are available to the consul_check resource is:

consul_check 'name' do
    id String
    script String
    args Array
    http String
    tcp String
    docker_container_id String
    shell String
    timeout String
    interval String
    ttl String
    service_id String
    initial_status String
    grpc String
    grpc_use_tls [True, False]
    action Symbol # defaults to :create if not specified
end

Actions


This resource has the following actions:

:create Default. Create the health check definition file. If a file already exists (but does not match), update that file to match.

:delete Delete the health check definition file.

:nothing Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the Chef Client run.

consul_script

The consul_script resource provisions a health check script. These items can be found in node['consul']['scripts_dir']/consul_script_<name>.

Syntax


consul_script 'ping-test' do
    script_content 'ping -c 1 -w 1 remotehost'
end

The full syntax for all of the properties that are available to the consul_script resource is:

consul_script 'name' do
    name String
    script_content String
    cookbook String # required if using cookbook_file or cookbook_template
    cookbook_file String
    cookbook_template String
    template_variables Hash # variables passed into template resource
    action Symbol # defaults to :create if not specified
end

Actions


This resource has the following actions:

:create Default. Create the service definition file. If a file already exists (but does not match), update that file to match.

:delete Delete the service configuration file.

:nothing Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the Chef Client run.

consul_service

The consul_service resource takes care of provisioning service configuration items. These items can be found in node['consul']['conf_dir']/100-service-<name>.json.

Syntax


consul_service 'web' do
    address node['ipaddress']
    port 8080
end

The full syntax for all of the properties that are available to the consul_service resource is:

consul_service 'name' do
    id String
    name String
    tags Array
    port Integer
    address String
    enable_tag_override True, False
    checks Array
    token String
    action Symbol # defaults to :create if not specified
end

Actions


This resource has the following actions:

:create Default. Create the service definition file. If a file already exists (but does not match), update that file to match.

:delete Delete the service configuration file.

:nothing Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the Chef Client run.

consul_watch

The consul_watch resource takes care of provisioning consul watches.

Syntax


consul_watch 'web' do
    type 'key'
    key 'web/nodes/server1'
    handler_type 'script'
    args ['/path/to/handler-script.sh']
end

The full syntax for all of the properties that are available to the consul_watch resource is:

consul_watch 'name' do
    type String
    prefix String
    key String
    args Array
    handler_type String
    handler String # deprecated in favor of handler_type with args
    http_handler_config Hash
    datacenter String
    token String
    action Symbol # defaults to :create if not specified
end

Actions


This resource has the following actions:

:create Default. Create the watch item.

:delete Delete the watch item.

:nothing Define this resource block to do nothing until notified by another resource to take action. When this resource is notified, this resource block is either run immediately or it is queued up to be run at the end of the Chef Client run.

Contributing

  1. Fork the repository on Github
  2. Create a named feature branch (like add_component_x)
  3. Write your change
  4. Write tests for your change (if applicable)
  5. Run the tests (rake & rake knife), ensuring they all pass
  6. Write new resource/attribute description to README.md
  7. Write description about changes to PR
  8. Submit a Pull Request using Github

Authors:: Virender Khatri and Contributors Authors:: Joshua Colson

<pre> Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. </pre>

Dependent cookbooks

nssm ~> 4.0.0

Contingent cookbooks

There are no cookbooks that are contingent upon this one.

consul-ng CHANGELOG

This file is used to list changes made in each version of the consul-ng cookbook.

0.1.4

  • Virender Khatri - Update Consul version to 0.7.0

0.1.3

  • JustGav - Create systemd.debian.erb

  • JustGav - Fix Travis

  • JustGav - Added kitchen Ubuntu 16.04

  • Daan de Goede - Fix for Search is not working with double quotes around the datacenter string

  • Virender Khatri - Fix travis build

0.1.2

  • Rene Mul - Fix lint

  • Rene Mul - Added support for systemd

  • Nathan Sullivan - fix to allow init script to be installed successfully in kitchen-docker

  • Nathan Sullivan - bump versions supported to include 0.6.4

  • Nathan Sullivan - fixed rubocop, spec tests

  • Virender Khatri - make install and config recipe optional

0.1.1

  • Rene Mul - Added Windows installation support

0.1.0

  • Virender Khatri - Initial release of consul-ng

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Collaborator Number Metric
            

0.2.0 failed this metric

Failure: Cookbook has 1 collaborators. A cookbook must have at least 2 collaborators to pass this metric.

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FC120: Do not set the name property directly on a resource: consul-ng/recipes/acls.rb:24
FC120: Do not set the name property directly on a resource: consul-ng/recipes/checks.rb:23
FC120: Do not set the name property directly on a resource: consul-ng/recipes/scripts.rb:22
FC120: Do not set the name property directly on a resource: consul-ng/recipes/services.rb:23
FC120: Do not set the name property directly on a resource: consul-ng/recipes/watches.rb:22
Run with Foodcritic Version 14.0.0 with tags metadata,correctness ~FC031 ~FC045 and failure tags any

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