packer-cn/website/source/docs/provisioners/chef-solo.html.md

---
layout: docs
sidebar_current: docs-provisioners-chef-solo
page_title: Chef Solo - Provisioners
description: |-
  The chef-solo Packer provisioner installs and configures software on machines
  built by Packer using chef-solo. Cookbooks can be uploaded from your local
  machine to the remote machine or remote paths can be used.
---

# Chef Solo Provisioner

Type: `chef-solo`

The Chef solo Packer provisioner installs and configures software on machines
built by Packer using [chef-solo](https://docs.chef.io/chef_solo.html).
Cookbooks can be uploaded from your local machine to the remote machine or
remote paths can be used.

The provisioner will even install Chef onto your machine if it isn't already
installed, using the official Chef installers provided by Chef Inc.

## Basic Example

The example below is fully functional and expects cookbooks in the "cookbooks"
directory relative to your working directory.

```json
{
  "type": "chef-solo",
  "cookbook_paths": ["cookbooks"]
}
```

## Configuration Reference

The reference of available configuration options is listed below. No
configuration is actually required, but at least `run_list` is recommended.

- `chef_environment` (string) - The name of the `chef_environment` sent to the
    Chef server. By default this is empty and will not use an environment

- `config_template` (string) - Path to a template that will be used for the
    Chef configuration file. By default Packer only sets configuration it needs
    to match the settings set in the provisioner configuration. If you need to
    set configurations that the Packer provisioner doesn't support, then you
    should use a custom configuration template. See the dedicated "Chef
    Configuration" section below for more details.

- `cookbook_paths` (array of strings) - This is an array of paths to
    "cookbooks" directories on your local filesystem. These will be uploaded to
    the remote machine in the directory specified by the `staging_directory`. By
    default, this is empty.

- `data_bags_path` (string) - The path to the "data\_bags" directory on your
    local filesystem. These will be uploaded to the remote machine in the
    directory specified by the `staging_directory`. By default, this is empty.

- `encrypted_data_bag_secret_path` (string) - The path to the file containing
    the secret for encrypted data bags. By default, this is empty, so no secret
    will be available.

- `environments_path` (string) - The path to the "environments" directory on
    your local filesystem. These will be uploaded to the remote machine in the
    directory specified by the `staging_directory`. By default, this is empty.

- `execute_command` (string) - The command used to execute Chef. This has
    various [configuration template
    variables](/docs/templates/engine.html) available. See
    below for more information.

- `guest_os_type` (string) - The target guest OS type, either "unix" or
    "windows". Setting this to "windows" will cause the provisioner to use
     Windows friendly paths and commands. By default, this is "unix".

- `install_command` (string) - The command used to install Chef. This has
    various [configuration template
    variables](/docs/templates/engine.html) available. See
    below for more information.

- `json` (object) - An arbitrary mapping of JSON that will be available as
    node attributes while running Chef.

- `prevent_sudo` (boolean) - By default, the configured commands that are
    executed to install and run Chef are executed with `sudo`. If this is true,
    then the sudo will be omitted. This has no effect when guest_os_type is
    windows.

- `remote_cookbook_paths` (array of strings) - A list of paths on the remote
    machine where cookbooks will already exist. These may exist from a previous
    provisioner or step. If specified, Chef will be configured to look for
    cookbooks here. By default, this is empty.

- `roles_path` (string) - The path to the "roles" directory on your
    local filesystem. These will be uploaded to the remote machine in the
    directory specified by the `staging_directory`. By default, this is empty.

- `run_list` (array of strings) - The [run
    list](https://docs.chef.io/run_lists.html) for Chef. By default this
    is empty.

- `skip_install` (boolean) - If true, Chef will not automatically be installed
    on the machine using the Chef omnibus installers.

- `staging_directory` (string) - This is the directory where all the
    configuration of Chef by Packer will be placed. By default this is
    "/tmp/packer-chef-solo" when guest_os_type unix and
    "$env:TEMP/packer-chef-solo" when windows. This directory doesn't need to
    exist but must have proper permissions so that the user that Packer uses is
    able to create directories and write into this folder. If the permissions
    are not correct, use a shell provisioner prior to this to configure it
    properly.

## Chef Configuration

By default, Packer uses a simple Chef configuration file in order to set the
options specified for the provisioner. But Chef is a complex tool that supports
many configuration options. Packer allows you to specify a custom configuration
template if you'd like to set custom configurations.

The default value for the configuration template is:

```liquid
cookbook_path [{{.CookbookPaths}}]
```

This template is a [configuration
template](/docs/templates/engine.html) and has a set of
variables available to use:

- `ChefEnvironment` - The current enabled environment. Only non-empty if the
    environment path is set.
- `CookbookPaths` is the set of cookbook paths ready to embedded directly into
    a Ruby array to configure Chef.
- `DataBagsPath` is the path to the data bags folder.
- `EncryptedDataBagSecretPath` - The path to the encrypted data bag secret
- `EnvironmentsPath` - The path to the environments folder.
- `RolesPath` - The path to the roles folder.

## Execute Command

By default, Packer uses the following command (broken across multiple lines for
readability) to execute Chef:

```liquid
{{if .Sudo}}sudo {{end}}chef-solo \
  --no-color \
  -c {{.ConfigPath}} \
  -j {{.JsonPath}}
```

When guest_os_type is set to "windows", Packer uses the following command to
execute Chef. The full path to Chef is required because the PATH environment
variable changes don't immediately propogate to running processes.

```liquid
c:/opscode/chef/bin/chef-solo.bat \
  --no-color \
  -c {{.ConfigPath}} \
  -j {{.JsonPath}}
```

This command can be customized using the `execute_command` configuration. As you
can see from the default value above, the value of this configuration can
contain various template variables, defined below:

- `ConfigPath` - The path to the Chef configuration file.
- `JsonPath` - The path to the JSON attributes file for the node.
- `Sudo` - A boolean of whether to `sudo` the command or not, depending on the
    value of the `prevent_sudo` configuration.

## Install Command

By default, Packer uses the following command (broken across multiple lines for
readability) to install Chef. This command can be customized if you want to
install Chef in another way.

```text
curl -L https://www.chef.io/chef/install.sh | \
  {{if .Sudo}}sudo{{end}} bash
```

When guest_os_type is set to "windows", Packer uses the following command to
install the latest version of Chef:

```text
powershell.exe -Command "(New-Object System.Net.WebClient).DownloadFile('http://chef.io/chef/install.msi', 'C:\\Windows\\Temp\\chef.msi');Start-Process 'msiexec' -ArgumentList '/qb /i C:\\Windows\\Temp\\chef.msi' -NoNewWindow -Wait"
```

This command can be customized using the `install_command` configuration.