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Load folder contents into object or dict

Project description

filemap - processing Kubernetes-style config maps and secrets

What's this

filemap is a Python module for comfortable processing of Kubernetes-style config maps and secrets, mounted as the volumes.

Usage

When connected as volumes, Kubernetes config maps and secrets are single-level directory, where files are keys and file contents are values.

Basic usage

When loaded, inside FileMap object, keys are transformed into fields and namespaces, field trees are formed with the dots in file names, as:

  • somekey => obj.data.somekey
  • some.key => obj.data.some.key
  • some.another.key => obj.data.some.another.key

Example:

from filemap import FileMap

config = FileMap('/etc/config')

print(config.data.somekey)
print(config.data.some.key)
print(config.data.some.another.key)

Note: when text data is loaded, it's automatically right-stripped.

Getting single key by name

print(config.get('some.key'))
print(config.get('some.another.key'))

Serialization to dict

When serialized, FileMap object is transformed into dict:

data = config.serialize() # or
data = dict(config) # does the same
print(data['somekey'])
print(data['some']['key'])
print(data['some']['another']['key'])

Combining multiple volumes

FileMap object can be updated multiple times with content from the different data folders:

config = FileMap()

config.update('/etc/config')
config.update('/etc/config2')
config.update('/etc/secrets')

If the same keys exist in different volumes, newer keys override the older ones.

Loading binary data, numbers, JSON

Refer to library pydoc for more info

Installation

pip3 install filemap

Project details


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