使用python将docker镜像发送到Docker hub并将其标记为最新版本

Question

我正在尝试将dokcer图像发送到我在docker hub中的帐户，并使用python标记它。

这就是我到目前为止所取得的成果：

import docker

client = docker.from_env()
img = client.images.pull('nginx:latest')
contanier = client.containers.run(img, detach=True, ports={'80/tcp': 8080})
# Here I am trying to send the image to my account (docker hub account) and tag it as the latest 

我正在尝试并努力找到一种方法，将我的图像发送到我在docker hub中的帐户，并将其标记为最新版本。

Answer 1

正如@DavidMaze提到的，你真的应该试着遵循并阅读他们的文档。

我--我的好奇心--几个月前也有同样的问题。我问自己是否有可能用Python来做这件事。但是，我不想坐下来等待回应，所以我在这里从来没有问过，我仔细阅读了他们的文档和源代码来完成它。

注意：此示例可能不起作用。把它作为你自己研究/实现的起点。欢迎对此答案进行编辑/评论！

免责声明：这是对my very own experimentation结果的快速而肮脏的复制/清理。

"""
An example which shows how to push images to a docker registry
using the docker module.

Before starting, you will need a `.env` file with the following:

::

    OUR_DOCKER_USERNAME=Unknown
    OUR_DOCKER_PASSWORD=Unknown
    OUR_DOCKER_EMAIL=Unknown

Author:
    - @funilrys
"""

import logging
import os

import docker
from dotenv import load_dotenv

DOCKER_API_CLIENT = docker.APIClient(base_url="unix://var/run/docker.sock")

REGISTRY = "docker.io"

# WARNING: We assume that you tagged your images correctly!!!
# It should be formatted like `user/repository` as per Docker Hub!!
IMAGE_TAG_NAME = "nginx"

# Let's load the `.env` file.
load_dotenv(".env")


def log_response(response: dict) -> None:
    """
    Given a response from the Docker client.
    We log it.

    :raise Exception:
        When an error is caught.
    """

    if "stream" in response:
        for line in response["stream"].splitlines():
            if line:
                logging.info(line)

    if "progressDetail" in response and "status" in response:
        if "id" in response and response["progressDetail"]:
            percentage = round(
                (response["progressDetail"]["current"] * 100)
                / response["progressDetail"]["total"],
                2,
            )

            logging.info(
                "%s (%s): %s/%s (%s%%)",
                response["status"],
                response["id"],
                response["progressDetail"]["current"],
                response["progressDetail"]["total"],
                percentage,
            )
        elif "id" in response:
            logging.info("%s (%s)", response["status"], response["id"])
        else:
            logging.info("%s", response["status"])
    elif "errorDetail" in response and response["errorDetail"]:
        raise Exception(response["errorDetail"]["message"])
    elif "status" in response:
        logging.info("%s", response["status"])


def get_credentials_from_env() -> dict:
    """
    Try to get the credentials from the environment variables.

    :return:
        {
            "username": str,
            "password": str,
            "email": str
        }
    """

    var2env: dict = {
        "username": "OUR_DOCKER_USERNAME",
        "password": "OUR_DOCKER_PASSWORD",
        "email": "OUR_DOCKER_EMAIL",
    }

    return {k: os.getenv(v, None) for k, v in var2env.items()}


def push_images(images: list, creds: dict) -> None:
    """
    Given credentials and a list of images to push, push the
    image to the declared registry.

    :param creds:
        The credentials to use.

    :param images:
        A list of images to push.
    """

    for image in images:
        for tag in image["RepoTags"]:
            publisher = DOCKER_API_CLIENT.push(
                repository=f"{REGISTRY}/{tag}",
                stream=True,
                decode=True,
                auth_config=creds,
            )

            for response in publisher:
                log_response(response)


if __name__ == "__main__":

    logging.basicConfig(level=logging.INFO, format="%(levelname)s: %(message)s")
    credentials = get_credentials_from_env()

    login = DOCKER_API_CLIENT.login(
        credentials["username"],
        password=credentials["password"],
        email=credentials["password"],
        registry=REGISTRY,
        reauth=True,
    )

    push_images(DOCKER_API_CLIENT.images(name=IMAGE_TAG_NAME), credentials)

编辑1:我忘记了你的标记部分:-)

下面是如何将图像标记为latest。

DOCKER_API_CLIENT.tag(
    image, "xxx/xxx(repository)", tag=latest
)

EDIT 2:链接

以下是我使用/编写的东西的官方链接。

• DOCKER_API_CLIENT.push()

• DOCKER_API_CLIENT.login()

• DOCKER_API_CLIENT.tag()

我希望这对某些人有帮助！