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Do not error out if uuid is not found. #510
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mikebrow
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Jan 4, 2018
| ProfilingPort string `toml:"profiling_port" json:"profilingPort,omitempty"` | ||
| // ProfilingAddress is address for profiling via host:port/debug/pprof/ | ||
| ProfilingAddress string `toml:"profiling_addr" json:"profilingAddress,omitempty"` | ||
| // SkipImageFSUUID skips retrieving imagefs uuid. |
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/s/./ for new instance of CRIContainerdService./
| fs.StringVar(&c.ProfilingAddress, "profiling-addr", | ||
| defaults.ProfilingAddress, "Profiling address for web interface host:port/debug/pprof/.") | ||
| fs.BoolVar(&c.SkipImageFSUUID, "skip-imagefs-uuid", | ||
| defaults.SkipImageFSUUID, "Skip retrieving imagefs uuid. When turned on, kubelet can't get imagefs capacity and imagefs disk eviction can't work.") |
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Skip retrieval of imagefs uuid for new CRIContainerdService instances. When turned on, the kubelet will not be able to get imagefs capacity or request imagefs disk eviction.
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CRIContainerdService is code name, I don't think user cares about that in the flag discription. :)
I'll update the other parts.
| c.imageFSUUID, err = c.getDeviceUUID(imageFSPath) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get imagefs uuid of %q: %v", imageFSPath, err) | ||
| if !c.config.SkipImageFSUUID { |
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suggest adding an info logf that it has been skipped..
Signed-off-by: Lantao Liu <[email protected]>
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Current uuid handling logic is not perfect. Some known issues have been reported such as #509, #399 and #325.
When this doesn't work, kubelet won't be able to get image filesystem capacity and usage. However, we should not keep user from trying cri-containerd out because of this.
Add a flag to skip this logic, and I'll figure out how we could make this more portable across different environments.
Signed-off-by: Lantao Liu [email protected]