https://github.com/shoekstra/knife-bootstrap-resolver

https://github.com/shoekstra/knife-bootstrap-resolver

Last synced: 27 days ago
JSON representation

• Host: GitHub
• URL: https://github.com/shoekstra/knife-bootstrap-resolver
• Owner: shoekstra
• License: other
• Created: 2015-04-16T09:57:02.000Z (over 9 years ago)
• Default Branch: develop
• Last Pushed: 2015-04-16T09:57:30.000Z (over 9 years ago)
• Last Synced: 2024-10-04T19:44:29.404Z (3 months ago)
• Language: Ruby
• Size: 105 KB
• Stars: 0
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

Awesome Lists containing this project

README

        
knife-bootstrap-resolver

========================

Chef knife plugin to configure the DNS resolver(s) on a node during bootstrap.

Sometimes a newly provisioned server may not have the correct DNS resolver configuration (either from template or DHCP) which causes `knife bootstrap` to fail - this plugin aims to solve that issue but providing an option a provisioning template can use to set the resolver before attempting to install the Chef client using the install.sh.

```

$ knife bootstrap -h | grep -i resolver

        --bootstrap-resolver RESOLVER

                                     The DNS resolver for the node being bootstrapped

```

### Configuration

To configure DNS resolver options in your `knife.rb`, add:

```

knife[:bootstrap_resolver]   = [ "8.8.8.8", "8.8.4.4" ]

```

To specify the above options on the fly, use the `--bootstrap-resolver` option to set the bootstrap node's resolver.

### Bootstrap Template

To make use of the above, include the following snippet towards the top in your bootstrap template (before any attempts to download files):

```

<% if @config[:bootstrap_resolver] -%>

<% @config[:bootstrap_resolver].map!(&:strip) if @config[:bootstrap_resolver].is_a?(Array) %>

<% @config[:bootstrap_resolver].is_a?(Array) ? bootstrap_resolver = @config[:bootstrap_resolver].join(" ") : bootstrap_resolver = @config[:bootstrap_resolver] %>

bootstrap_resolver=( <%= bootstrap_resolver %> )

for n in "${bootstrap_resolver[@]}"; do echo "nameserver ${n}"; done > /etc/resolv.conf

<% elsif @knife_config[:bootstrap_resolver] -%>

<% @knife_config[:bootstrap_resolver].map!(&:strip) if @knife_config[:bootstrap_resolver].is_a?(Array) %>

<% @knife_config[:bootstrap_resolver].is_a?(Array) ? bootstrap_resolver = @knife_config[:bootstrap_resolver].join(" ") : bootstrap_resolver = @knife_config[:bootstrap_resolver] %>

bootstrap_resolver=( <%= bootstrap_resolver %> )

for n in "${bootstrap_resolver[@]}"; do echo "nameserver ${n}"; done > /etc/resolv.conf

<% end -%>

```

### Attributes

Knife attributes for `knife.rb`.  Options specified when running `knife bootstrap` take precedence over those options specified in your `knife.rb`.

###### bootstrap_resolver

Here you specify the DNS resolvers for your node to use.


Multiple entries should be specified as an array.