ImageChecker

No overview available.

Methods

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image_exists()

@classmethod
def image_exists(
    repository: str,
    tag: str,
    arch: Tuple[Architecture, ...] = ("linux/amd64",)
) - > Optional[str]

Checks if a specified container image exists in a repository for a given tag and architecture. Callers use this to verify the presence of an image before attempting to pull or use it.

Parameters

Name	Type	Description
repository	str	The name of the image repository to check (e.g., 'library/ubuntu').
tag	str	The specific tag of the image to check (e.g., 'latest', '20.04').
arch	Tuple[Architecture, ...] = ("linux/amd64",)	A tuple of architecture strings (e.g., 'linux/amd64', 'linux/arm64') to check for the image. The method will return true if the image exists for any of the provided architectures.

Returns

Type	Description
Optional[str]	Returns the digest of the image if it exists, otherwise returns None.

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