containerimage-py

A python library for interacting with container images and container image registries

Docs: https://containers.github.io/containerimage-py/

Contributing: CONTRIBUTING.md

Quick Example

Here is a quick motivating example for how you might use containerimage-py in your python scripts to fetch basic information about a container image.

from image.containerimage import ContainerImage

# Initialize a ContainerImage given a tag reference
my_image = ContainerImage("registry.k8s.io/pause:3.5")

# Display some basic information about the container image
print(
    f"Size of {str(my_image)}: " + \
    my_image.get_size_formatted(auth={}) # 499.91 MB
)
print(
    f"Digest for {str(my_image)}: " + \
    my_image.get_digest(auth={}) # sha256:1ff6c18fbef2045af6b9c16bf034cc421a29027b800e4f9b68ae9b1cb3e9ae07
)

# Inspect the container image image for a more consolidated summary
print(
    f"Inspect for {str(my_image)}:\n" + \
    str(my_image.inspect(auth={})) # Same as skopeo inspect docker://registry.k8s.io/pause:3.5
)

To run this example, simply execute the following from the root of this repository

python3 examples/quick-example.py

Installation

Using Pip

Run the following command to install the latest version of this package

pip install containerimage-py

Local Install

1. Clone this repository
2. Build the project from source
3. Locate the .whl (wheel) file in the dist folder
   • It should be named something like so: containerimage_py-0.1.0-py3-none-any.whl
4. Run the following command from the root of the repository, replacing the name of the .whl file if necessary

   pip install dist/containerimage_py-0.1.0-py3-none-any.whl
   

Build

From the root of this repository, execute

make build

Under the hood, this will execute python3 -m build and produce a .whl (wheel) and .tgz (TAR-GZip archive) file in the dist subdirectory. For more on this project's make recipes, see CONTRIBUTING.md.