830a363598
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>. kube-proxy IPVS: Fix IPVS availability check **What this PR does / why we need it**: The current implementation of `CanUseIPVSProxier()` reads `/proc/modules` to check whether IPVS related kernel modules can be loaded. You might get a false-negative when the kernel modules are installed to the system but haven't been loaded into the kernel. This patch firstly try to run `modprobe` to load specified kernel modules, then just log warnings if error occured. Secondly, it will check loaded kernel modules by reading `/proc/modules`, return an error if any required module is missing. This change will not break the compatability of existing implementation. Running kube-proxy in a container without mounting `/lib/modules` will cause `modprobe` warnings, but not raise an error if all required modules are present in the host kernel. **Special notes for your reviewer**: **Release note**: ```release-note Fix IPVS availability check ```
Kubernetes
Kubernetes is an open source system for managing containerized applications across multiple hosts, providing basic mechanisms for deployment, maintenance, and scaling of applications.
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