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Work on #61: Add support for ICMP

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+ Update dependencies
This commit is contained in:
TwinProduction
2020-12-25 00:07:18 -05:00
parent c86173d46f
commit 83a5813daf
1004 changed files with 182274 additions and 64323 deletions
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52
vendor/k8s.io/apimachinery/pkg/util/runtime/runtime.go generated vendored
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@ -18,11 +18,12 @@ package runtime
import (
"fmt"
"net/http"
"runtime"
"sync"
"time"
"k8s.io/klog"
"k8s.io/klog/v2"
)
var (
@ -40,11 +41,7 @@ var PanicHandlers = []func(interface{}){logPanic}
// called in case of panic. HandleCrash actually crashes, after calling the
// handlers and logging the panic message.
//
// TODO: remove this function. We are switching to a world where it's safe for
// apiserver to panic, since it will be restarted by kubelet. At the beginning
// of the Kubernetes project, nothing was going to restart apiserver and so
// catching panics was important. But it's actually much simpler for monitoring
// software if we just exit when an unexpected panic happens.
// E.g., you can provide one or more additional handlers for something like shutting down go routines gracefully.
func HandleCrash(additionalHandlers ...func(interface{})) {
if r := recover(); r != nil {
for _, fn := range PanicHandlers {
@ -60,29 +57,28 @@ func HandleCrash(additionalHandlers ...func(interface{})) {
}
}
// logPanic logs the caller tree when a panic occurs.
// logPanic logs the caller tree when a panic occurs (except in the special case of http.ErrAbortHandler).
func logPanic(r interface{}) {
callers := getCallers(r)
if r == http.ErrAbortHandler {
// honor the http.ErrAbortHandler sentinel panic value:
// ErrAbortHandler is a sentinel panic value to abort a handler.
// While any panic from ServeHTTP aborts the response to the client,
// panicking with ErrAbortHandler also suppresses logging of a stack trace to the server's error log.
return
}
// Same as stdlib http server code. Manually allocate stack trace buffer size
// to prevent excessively large logs
const size = 64 << 10
stacktrace := make([]byte, size)
stacktrace = stacktrace[:runtime.Stack(stacktrace, false)]
if _, ok := r.(string); ok {
klog.Errorf("Observed a panic: %s\n%v", r, callers)
klog.Errorf("Observed a panic: %s\n%s", r, stacktrace)
} else {
klog.Errorf("Observed a panic: %#v (%v)\n%v", r, r, callers)
klog.Errorf("Observed a panic: %#v (%v)\n%s", r, r, stacktrace)
}
}
func getCallers(r interface{}) string {
callers := ""
for i := 0; true; i++ {
_, file, line, ok := runtime.Caller(i)
if !ok {
break
}
callers = callers + fmt.Sprintf("%v:%v\n", file, line)
}
return callers
}
// ErrorHandlers is a list of functions which will be invoked when an unreturnable
// error occurs.
// TODO(lavalamp): for testability, this and the below HandleError function
@ -155,13 +151,17 @@ func GetCaller() string {
// handlers to handle errors and panics the same way.
func RecoverFromPanic(err *error) {
if r := recover(); r != nil {
callers := getCallers(r)
// Same as stdlib http server code. Manually allocate stack trace buffer size
// to prevent excessively large logs
const size = 64 << 10
stacktrace := make([]byte, size)
stacktrace = stacktrace[:runtime.Stack(stacktrace, false)]
*err = fmt.Errorf(
"recovered from panic %q. (err=%v) Call stack:\n%v",
"recovered from panic %q. (err=%v) Call stack:\n%s",
r,
*err,
callers)
stacktrace)
}
}