hostsfile
provides an LWRP for managing your /etc/hosts
(or Windows equivalent) file using Chef.
- Chef 11 or higher
- Ruby 1.9.3 or higher
Please stop opening Pull Requests to restore Ruby 1.8 support! Any of the 1.x.y
series of this cookbook will work with Chef 10 and Ruby 1.8. You can use Opscode's Omnibus installer to install Ruby 1.9+ and Seth Chisamore's Vagrant Omnibus plugin to get Ruby 1.9+ on your Vagrant box.
Attribute | Description | Example | Default |
---|---|---|---|
ip_address | (name attribute) the IP address for the entry | 1.2.3.4 | |
hostname | (required) the hostname associated with the entry | example.com | |
unique | remove any existing entries that have the same hostname | true | false |
aliases | array of aliases for the entry | ['www.example.com'] | [] |
comment | a comment to append to the end of the entry | 'interal DNS server' | nil |
priority | the relative position of this entry | 20 | (varies, see **Priorities** section) |
Please note: In v0.1.2
, specifying a hostname or alias that existed in another automatically removed that hostname from the other entry before. In v2.1.0
, the unique
option was added to give the user case-by-case control of this behavior. For example, given an /etc/hosts
file that contains:
1.2.3.4 example.com www.example.com
when the Chef recipe below is converged:
hostsfile_entry '2.3.4.5' do
hostname 'www.example.com'
unique true
end
then the /etc/hosts
file will look like this:
1.2.3.4 example.com
2.3.4.5 www.example.com
Not specifying the unique
parameter will result in duplicate hostsfile entries.
Creates a new hosts file entry. If an entry already exists, it will be overwritten by this one.
hostsfile_entry '1.2.3.4' do
hostname 'example.com'
action :create
end
This will create an entry like this:
1.2.3.4 example.com
Create a new hosts file entry, only if one does not already exist for the given IP address. If one exists, this does nothing.
hostsfile_entry '1.2.3.4' do
hostname 'example.com'
action :create_if_missing
end
Append a hostname or alias to an existing record. If the given IP address doesn't not already exist in the hostsfile, this method behaves the same as create. Otherwise, it will append the additional hostname and aliases to the existing entry.
1.2.3.4 example.com www.example.com # Created by Chef
hostsfile_entry '1.2.3.4' do
hostname 'www2.example.com'
aliases ['foo.com', 'foobar.com']
comment 'Append by Recipe X'
action :append
end
would yield:
1.2.3.4 example.com www.example.com www2.example.com foo.com foobar.com # Created by Chef, Appended by Recipe X
Updates the given hosts file entry. Does nothing if the entry does not exist.
hostsfile_entry '1.2.3.4' do
hostname 'example.com'
comment 'Update by Chef'
action :update
end
This will create an entry like this:
1.2.3.4 example # Updated by Chef
Removes an entry from the hosts file. Does nothing if the entry does not exist.
hostsfile_entry '1.2.3.4' do
action :remove
end
This will remove the entry for 1.2.3.4
.
If you're using Berkshelf, just add hostsfile
to your Berksfile
:
cookbook 'hostsfile'
Otherwise, install the cookbook from the community site:
knife cookbook site install hostsfile
Have any other cookbooks depend on hostsfile by editing editing the metadata.rb
for your cookbook.
# metadata.rb
depends 'hostsfile'
Note that you can specify a custom path to your hosts file in the ['hostsfile']['path']
node attribute. Otherwise, it defaults to sensible paths depending on your OS.
If you are using ChefSpec to unit test a cookbook that implements the hostsfile_entry
LWRP, this cookbook packages customer matchers that you can use in your unit tests:
append_hostsfile_entry
create_hostsfile_entry
create_hostsfile_entry_if_missing
remove_hostsfile_entry
update_hostsfile_entry
For example:
it 'creates a hostsfile entry for the DNS server' do
expect(chef_run).to create_hostsfile_entry('1.2.3.4')
.with_hostname('dns.example.com')
end
Priority is a relatively new addition to the cookbook. It gives you the ability to (somewhat) specify the relative order of entries. By default, the priority is calculated for you as follows:
- Local, loopback
- IPV4
- IPV6
However, you can override it using the priority
option.
- Fork the project
- Create a feature branch corresponding to you change
- Commit and test thoroughly
- Create a Pull Request on github
- Author:: Seth Vargo ([email protected])
Copyright 2012-2013, Seth Vargo
Copyright 2012, CustomInk, LLC
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.