Komey

feature: get LocalIP from supernode HTTP _ping API first rather than TCP connection due to Kube-service in ipvs-mod will get cluster IP for LocalAddr ### Ⅰ. Describe what this PR...

dfget got Supernode’s Service Cluster IP as peer ip in k8s cluster

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### Ⅰ. Issue Description https://github.com/dragonflyoss/Dragonfly/blob/master/pkg/httputils/http_util.go#L393 kube-proxy mode=ipvs supernode with service.spec.type=ClusterIP(eg. 10.254.49.255) when dfget or dfclient startup, it will get ClusterIP(eg. 10.254.49.255) as cfg.LocalIP which will register to supernode as peer...

https://github.com/gambol99/go-marathon/blob/6d1efaff86d484701d242bee396e7bdd35ce27d2/task.go#L70 ``` type KillTaskOpts struct { Scale bool `url:"scale,omitempty"` Force bool `url:"force,omitempty"` Wipe bool `url:"wipe,omitempty"` } ```