通过一下脚本来对docker registery的历史镜像进行清理。

优点：快速清理历史镜像。

缺点：没有分页查询的功能。

registry需要支持删除操作。

storage:
 delete:
  enabled: true

脚本调用registry接口对历史版本进行删除。

import requests
from concurrent.futures import ThreadPoolExecutor


def del_registery(hub, repo, reserve_number=10):
    num = 0
    tag_list_url = '%s/v2/%s/tags/list' % (hub, repo)
    req = requests.get(tag_list_url, verify=False)
    tags = req.json().get("tags", [])
    if not tags:
        exit()
    tags = tags[:-reserve_number]
    for tag in tags:
        get_info_url = '{}/v2/{}/manifests/{}'.format(hub, repo, tag)
        header = {"Accept": "application/vnd.docker.distribution.manifest.v2+json"}
        r2 = requests.get(url=get_info_url, headers=header, timeout=10, verify=False)
        digest = r2.headers.get('Docker-Content-Digest')
        # 删除镜像
        delete_url = '%s/v2/%s/manifests/%s' % (hub, repo, digest)
        r3 = requests.delete(url=delete_url, verify=False)
        if r3.status_code == 202:
            num += 1
    print('仓库%s 共删除了%i个历史镜像' % (repo, num))


if __name__ == '__main__':
    hub = 'https://xxxxxxxx'
    reserve_number = 10
    req = requests.get(hub + "/v2/_catalog?n=600", verify=False)
    repositories = req.json()["repositories"]
    pool = ThreadPoolExecutor(10)

    for repo in repositories:
        pool.submit(del_registery, hub, repo, reserve_number)

脚本只需完成后需要在registry部署服务器执行一下命令进行垃圾回收

registry garbage-collect /etc/docker/registry/config.yml