问题
I'm having trouble connecting to the kubernetes python client even though I'm following the examples here in the api.
Basically this line can't connect to the kubernetes client:
config.load_kube_config()
What I'm doing:
I have a Dockerfile file like this that I'm building my image with. This is just a simple python/flask app.
FROM python:2
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
COPY requirements.txt /usr/src/app/
RUN pip install --no-cache-dir -r requirements.txt
COPY . /usr/src/app
EXPOSE 5000
CMD [ "python", "./app.py" ]
This is my requirements.txt:
Flask==1.0.2
gunicorn==19.8.1
kubernetes==6.0.0
requests # Apache-2.0
After building the Dockerfile it outputs:
Successfully built a2590bae9fd9
Successfully tagged testapp:latest
but when I do docker run a2590bae9fd9 I receive an error:
Traceback (most recent call last):
File "./app.py", line 10, in <module>
config.load_kube_config()
File "/usr/local/lib/python2.7/site- packages/kubernetes/config/kube_config.py", line 470, in load_kube_config
config_persister=config_persister)
File "/usr/local/lib/python2.7/site- packages/kubernetes/config/kube_config.py", line 427, in _get_kube_config_loader_for_yaml_file
with open(filename) as f:
IOError: [Errno 2] No such file or directory: '/root/.kube/config'
I thought it might've been my python directory but I checked and its running in /usr/local/bin/python.
I'm really stumped - any suggestions/tips? thank you.
回答1:
You don't want config.load_kube_config(), you want config.load_incluster_config()
If you need to distinguish between your setup and when it's running in a Pod, one mechanism is if os.getenv('KUBERNETES_SERVICE_HOST'): config.load_incluster_config() since that for sure will be in the environment while in a Pod, and is unlikely to be in your local environment.
来源：https://stackoverflow.com/questions/51032599/unable-to-connect-to-kubernetes-python-api-kube-config-file-not-found