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Add simpler example for chef client in local mode 

The existing documentation example looks intimidating as it includes:
* variable interpolation
* configuration of the chef provisioner
* and it misses the `config_template` file
In the issue comments, [simpler and complete example](https://github.com/hashicorp/packer/issues/3355#issuecomment-198134727) exists already and works out of the box.

This change adds the simpler and complete example, while leaving the more complicated example intact.
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vkatsikaros 2018-04-03 16:29:51 +03:00 committed by GitHub
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website/source/docs/provisioners/chef-client.html.md
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@ -286,7 +286,65 @@ directories, append a shell provisioner after Chef to modify them.
## Examples
### Chef Client Local Mode
### Chef Client Local Mode - Simple
The following example shows how to run the `chef-client` provisioner in local
mode.
**Packer variables**
Set the necessary Packer variables using environment variables or provide a [var
file](/docs/templates/user-variables.html).
``` json
"variables": {
"chef_dir": "/tmp/packer-chef-client"
}
```
**Setup the** `chef-client` **provisioner**
Make sure we have the correct directories and permissions for the `chef-client`
provisioner. You will need to bootstrap the Chef run by providing the necessary
cookbooks using Berkshelf or some other means.
``` json
"provisioners": [
...
{ "type": "shell", "inline": [ "mkdir -p {{user `chef_dir`}}" ] },
{ "type": "file", "source": "./roles", "destination": "{{user `chef_dir`}}" },
{ "type": "file", "source": "./cookbooks", "destination": "{{user `chef_dir`}}" },
{ "type": "file", "source": "./data_bags", "destination": "{{user `chef_dir`}}" },
{ "type": "file", "source": "./environments", "destination": "{{user `chef_dir`}}" },
{ "type": "file", "source": "./scripts/install_chef.sh", "destination": "{{user `chef_dir`}}/install_chef.sh" },
{
"type": "chef-client",
"install_command": "sudo bash {{user `chef_dir`}}/install_chef.sh",
"server_url": "http://localhost:8889",
"config_template": "./config/client.rb.template",
"run_list": [ "role[testing]" ],
"skip_clean_node": true,
"skip_clean_client": true
}
...
]
```
And ./config/client.rb.template referenced by the above configuration:
```ruby
log_level :info
log_location STDOUT
local_mode true
chef_zero.enabled true
ssl_verify_mode "verify_peer"
role_path "{{user `chef_dir`}}/roles"
data_bag_path "{{user `chef_dir`}}/data_bags"
environment_path "{{user `chef_dir`}}/environments"
cookbook_path [ "{{user `chef_dir`}}/cookbooks" ]
```
### Chef Client Local Mode - Passing variables
The following example shows how to run the `chef-client` provisioner in local
mode, while passing a `run_list` using a variable.