Version information
released Aug 8th 2024
This version is compatible with:
- Puppet Enterprise 2019.8.x, 2019.7.x, 2019.5.x, 2019.4.x, 2019.3.x, 2019.2.x, 2019.1.x, 2019.0.x
- Puppet >= 6 < 7.4.0
- , , ,
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mod 'czembower-blob', '0.3.14'Learn more about managing modules with a PuppetfileDocumentation
czembower/blob — version 0.3.14 Aug 8th 2024
puppet-blob
Table of Contents
Description
A simple Puppet module that downloads objects from Azure blob storage, using the Client ID parameter associated with a User-Assigned Managed Identity as the authentication mechanism.
Optionally, the downloaded object can be unzipped, and permissions of the object and/or unzipped files can be managed by specifying the 'mode' parameter.
For convenience, a 'client_id' custom fact is provided as a means to source the Azure User-Assigned Managed Identity client-id value from an Azure Tag 'clientId'
- client_id - the value of the 'clientId' tag, if it exists.
Usage
blob { '/tmp/myBlob.zip':
ensure => present,
account => 'myBlobStorageAccountName',
client_id => 'xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx',
blob_path => 'myStorageContainer/myBlob.zip',
mode => '0644',
unzip => true,
creates => '/tmp/myBlob'
}
Optionally, the client_id parameter can be sourced from an included custom fact that reads the client_id from an Azure tag named "clientId" if it exists:
blob { '/tmp/myBlob.txt':
ensure => present,
account => 'myBlobStorageAccountName',
client_id => $facts['client_id'],
blob_path => 'myStorageContainer/myBlob.txt',
}
This method facilitates integration with infrastructure-as-code tools (e.g. Terraform) such that a compute resource, managed identity, and access controls can all be defined programatically, without commiting sensitive data to your repository.
Microsoft azcopy can optionally be used to provide increased performance:
blob { '/tmp/veryLargeFile.zip':
ensure => present,
account => 'myBlobStorageAccountName',
client_id => $facts['client_id'],
blob_path => 'myStorageContainer/veryLargeFile.zip',
azcopy => true
}
Parameters
ensure: Whether object should be present/absent on the local filesystem (default: present)path: [string] Where to store the object on the local system (optional - implied by resource name)account: [string] Azure Storage Account name (required)client_id: [string] The Client ID of the associated user-assigned managed identity (required)blob_path: [string] Path to the object in the form of [container]/[path]/[to]/[object] (required)mode: [string] Permissions that should be applied to the file after downloading (optional - default: undef)unzip: [bool] Whether to unzip downloaded Blob object (optional - default: false)creates: [string] File object created by the unzip process - controls mode/presence of extracted data, and will additionally purge the original zip archive after extraction (optional - default: undef)azcopy: [bool] Utilize the azcopy utility (recommended for large file transfers (optional - default: false)mkdir: [bool] Controls the creation of the target directory for unzipped objects (optional - default: true)
If 'mode' is defined and 'unzip' is selected, extracted files will be managed recursively. This is useful for directories.
On Windows systems, if 'creates' is specified, the value must be the full path to a single file that is extracted from the archive. In this case, any management of file permissions should be handled with the Acl module (or similar) instead.
Leaving azcopy => false (default) will utilize Ruby standard library Net/Http to handle download operations. This is perfectly suitable for common use, but in the case of large file transfers (over several GB), it is recommended to enable the azcopy option. Doing so will result in installation of the latest version of azcopy available from Microsoft at the following paths:
Linux:/opt/azcopy/bin/azcopyWindows:C:/ProgramData/azcopy/bin/azcopy.exe
Limitations
This module currently only supports User-Assigned Managed Identity as the authentication mechanism. This requires the Puppet client system to be a machine running within the Azure environment with appropriately scoped access permission. Alternate methods require sensitive credentials to be present in the manifest. In contrast, the 'client ID' method is bound to a verified identity and therefore carries a considerably lower risk factor.
Please open an issue at the Project URL if you would like to see support for alternative authentication methods.
Changelog
All notable changes to this project will be documented in this file.
Release 0.3.9
Features
- Documentation updates
- Removed az_meta custom fact, as this is now provided by core puppet (az_metadata)
Release 0.3.8
Features
- Zip archives will now be extracted into paths following the convention: {resource path}/{archive name}
Release 0.3.3
Features
- On Windows, added logic to wait for file lock availability after downloading and/or unzipping Blobs
Release 0.3.2
Bugfixes
- azcopy Windows download method
- Fix escaped paths in unzip
Release 0.3.0
Features
- Improvements to unzip for Windows OS
- Moved azcopy and unzip functionality into classes
Release 0.2.0
Features
- Added support for azcopy as transfer utility
Release 0.1.9
Features
- File resource permissions now default to 'undef'
Release 0.1.6
Features
- Handle spaces in filesystem paths
Release 0.1.5
Features
- 'creates' parameter will now purge the original zip file after extraction
Bugfixes
- Documentation updates
Release 0.1.4
Bugfixes
- Documentation clarity and updates
Release 0.1.3
Bugfixes
- Fixed an issue with type definition
Release 0.1.2
Bugfixes
- Address typos in documentation
Release 0.1.1
Features
- File mode/permisions management is now handled by native Puppet File class
- Added unzip capability with 'creates' parameter
Release 0.1.0
Features
- Initial release
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