Question

我是DOCKER用户的初学者，并且正在尝试按照docker指令进行第一次尝试。。

以下是指示链接：https://docs.docker.com/get-started/part2，我已关注，但是，当我要执行这一步时，＆＃34; docker build -t friendlyhello。＆＃34;，我总是看到这种类型的失败：

Collecting Flask (from -r requirements.txt (line 1))
  Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x2b1ce8301950>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/flask/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x2b1ce8301b50>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/flask/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x2b1ce83011d0>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/flask/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x2b1ce8301710>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/flask/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x2b1ce8301150>: Failed to establish a new connection: [Errno 101] Network is unreachable',)': /simple/flask/
  Could not find a version that satisfies the requirement Flask (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for Flask (from -r requirements.txt (line 1))
The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1

我用Google搜索并在此处找到了类似的报告：Can't download python packages onto Docker image

但是他们在docker中使用了糟糕的DNS值，而在我的环境中，我能够运行相同的cmd：＆＃34; docker运行busybox nslookup google.com＆＃34;，w /或w / o给予显式DNS值。

那么可能是我失败的原因是什么？

谢谢，

-cji

无法将python包下载到Docker镜像上

0 个答案: