I created this client because I have a private docker registry based on the docker image and a CI process that builds images and places them into the registry.
As my system moves through versions images build up on the registry increasing storage costs.
I have created a script which uses the deleteNonWhitelistedTags api of the client to delete images that I no longer need on the repository.
TODO
- find out if garbage collection is run periodically in standard image or I need to run it
- find out if there is an API to run the garbage collection process
registry garbage-collect /etc/docker/registry/config.yml
import dockerRegistryPythonClient
client = dockerRegistryPythonClient.RegistryClient(baseURL="https://registryurl.com")
username="uu"
password="pp"
loginSession = client.getLoginSessionBasedOnBasicAuth(username=username, password=password)
loginSession.testValid()
catalogs = client.getCatalogIterator(loginSession=loginSession)
for catalog in catalogs:
print(catalog)
The returned catalogs are just strings.
import dockerRegistryPythonClient
client = dockerRegistryPythonClient.RegistryClient(baseURL="https://registryurl.com")
username="uu"
password="pp"
loginSession = client.getLoginSessionBasedOnBasicAuth(username=username, password=password)
tags = client.getTagsForCatalogIterator(loginSession=loginSession, catalogName="repourl/challengeapp")
for tag in tags:
print(tag)
catalogName is just the name retrieved by the catalog iterator.
import dockerRegistryPythonClient
client = dockerRegistryPythonClient.RegistryClient(baseURL="https://registryurl.com")
username="uu"
password="pp"
loginSession = client.getLoginSessionBasedOnBasicAuth(username=username, password=password)
imageMetadata = client.getImageMetadata(loginSession, qualifiedImageName)
print(imageMetadata.getDigest())
import dockerRegistryPythonClient
client = dockerRegistryPythonClient.RegistryClient(baseURL="https://registryurl.com")
username="uu"
password="pp"
loginSession = client.getLoginSessionBasedOnBasicAuth(username=username, password=password)
qualifiedImageName="imagename:tagname"
imageMetadata = client.getImageMetadata(loginSession, qualifiedImageName)
imageMetadata.delete(registryClient=client, loginSession=loginSession)
import dockerRegistryPythonClient
client = dockerRegistryPythonClient.RegistryClient(baseURL="https://registryurl.com")
username="uu"
password="pp"
loginSession = client.getLoginSessionBasedOnBasicAuth(username=username, password=password)
whiteList = [
"myimage:0.1.19",
"myotherimage:0.1.1"
]
client.deleteNonWhitelistedTags(loginSession=loginSession, whiteList=whiteList)
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