4b41a54eda
Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. kubeadm: Utilize transport defaults from API machinery for http calls inside kubeadm **What this PR does / why we need it**: Default Go HTTP transport does not allow to use CIDR notations in NO_PROXY variables, thus for certain HTTP calls that is done inside kubeadm user needs to put explicitly multiple IP addresses. For most of calls done via API machinery it is get solved by setting different Proxy resolver. This patch allows to use CIDR notations in NO_PROXY variables for currently all other HTTP calls that is made inside kubeadm. **Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes kubernetes/kubeadm#324 **Special notes for your reviewer**: Based on discussion in #52788, replacing this patch replacing all calls inside kubeadm that are done via DefaultTransport to explicitly defined and initialized with API machinery defaults Transport and http client. **Release note**: ```release-note - kubeadm now supports CIDR notations in NO_PROXY environment variable ```
Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.
Kubernetes builds upon a decade and a half of experience at Google running production workloads at scale using a system called Borg, combined with best-of-breed ideas and practices from the community.
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