dockerClient.containers.create(..., ports={...: None}) does not work in docker client 3.2.0 and upwards #2792
Comments
|
Hi @bentheiii First of all, thank you for the code snippet. The containers documentation explain how ports should be used:
I could not reproduce the empty list on Linux, so I suggest you print the Have a nice day :) PS: I'm preparing a windows machine to try to reproduce the problem. |
|
Hi and thanks for the quick reply, I can reproduce the problem on multiple machines (windows and mac)
|
|
Hi @bentheiii Sorry to ask you again, but the attempt to recover my windows machine was a total failure. Could you add a print right before reloading the container to be sure that is happening since the container creation? client = DockerClient.from_env()
client.images.pull("redis:latest", platform=None)
container = client.containers.create("redis:latest", detach=True, ports={11234: None})
try:
container.start()
+ portmap = container.attrs["NetworkSettings"]["Ports"]
+ print(portmap)
container.reload()
portmap = container.attrs["NetworkSettings"]["Ports"]
print(portmap)
finally:
container.kill('SIGKILL')In the meanwhile, I will figure out how to debug that. Thanks and have a nice day :) |
|
Hello, I have run the following code: this is the result: filtering only EDIT: I'm just now noticing the strange behaviour, will investigate further if I have time |
|
It appears that the issue can be fixed by introducing a small delay (even a function call) between the client = DockerClient.from_env()
container = client.containers.create("redis:latest", detach=True, ports={11234: None})
def report(label):
attrs = container.attrs
portmap = attrs["NetworkSettings"]["Ports"]
print(label, 'all attrs', attrs)
print(label, 'portmap', portmap)
try:
report('A')
container.start()
container.reload()
report('B')
container.reload()
report('C')
finally:
container.kill('SIGKILL')output: |
|
My output (linux) was: A portmap {}
B portmap {'11234/tcp': [{'HostIp': '0.0.0.0', 'HostPort': '49155'}], '6379/tcp': None}
C portmap {'11234/tcp': [{'HostIp': '0.0.0.0', 'HostPort': '49155'}], '6379/tcp': None}@ulyssessouza could you try that as well? Thanks @bentheiii @ulyssessouza |
|
Hi @bentheiii I´m sorry to ask you again, but could you try to play around with Unfortunately, that issue doesn't happen on Linux, and Docker doesn´t work inside a Windows VM. Thanks again, and have a nice day :) |
|
I think this is a Docker Desktop issue, so this should be in the docker for-mac/for-win repository? |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
SDK version: 4.4.4
OS: Windows, also reproduced in WSL, and mac
python version: 3.8
reproduced in the following docker versions:
The following code snippet:
prints an empty list
[]on docker client versions 3.20 onwards, and a list of host ports/ips for earlier versions.The text was updated successfully, but these errors were encountered: