4a057bf3d5
2 configurations for the listeners are now possible: - enableJWT=false with client ssl auth - enableJWT=true with https Actual verification of the tokens is handled by https://github.com/openshift-online/ocm-sdk-go. An authentication handler is run as the top level handler, before any routing is done. Routes which do not require authentication should be listed as exceptions. Authentication can be restricted using an ACL file which allows filtering based on JWT claims. For more information see the inline comments in ocm-sdk/authentication. As an added quirk the `-v` flag for the osbuild-composer executable was changed to `-verbose` to avoid flag collision with glog which declares the `-v` flag in the package `init()` function. The ocm-sdk depends on glog and pulls it in.
96 lines
2.2 KiB
Go
96 lines
2.2 KiB
Go
package backoff
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import "time"
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// An Operation is executing by Retry() or RetryNotify().
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// The operation will be retried using a backoff policy if it returns an error.
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type Operation func() error
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// Notify is a notify-on-error function. It receives an operation error and
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// backoff delay if the operation failed (with an error).
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//
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// NOTE that if the backoff policy stated to stop retrying,
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// the notify function isn't called.
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type Notify func(error, time.Duration)
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// Retry the operation o until it does not return error or BackOff stops.
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// o is guaranteed to be run at least once.
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//
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// If o returns a *PermanentError, the operation is not retried, and the
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// wrapped error is returned.
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//
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// Retry sleeps the goroutine for the duration returned by BackOff after a
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// failed operation returns.
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func Retry(o Operation, b BackOff) error {
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return RetryNotify(o, b, nil)
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}
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// RetryNotify calls notify function with the error and wait duration
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// for each failed attempt before sleep.
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func RetryNotify(operation Operation, b BackOff, notify Notify) error {
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return RetryNotifyWithTimer(operation, b, notify, nil)
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}
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// RetryNotifyWithTimer calls notify function with the error and wait duration using the given Timer
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// for each failed attempt before sleep.
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// A default timer that uses system timer is used when nil is passed.
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func RetryNotifyWithTimer(operation Operation, b BackOff, notify Notify, t Timer) error {
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var err error
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var next time.Duration
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if t == nil {
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t = &defaultTimer{}
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}
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defer func() {
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t.Stop()
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}()
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ctx := getContext(b)
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b.Reset()
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for {
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if err = operation(); err == nil {
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return nil
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}
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if permanent, ok := err.(*PermanentError); ok {
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return permanent.Err
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}
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if next = b.NextBackOff(); next == Stop {
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return err
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}
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if notify != nil {
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notify(err, next)
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}
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t.Start(next)
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select {
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case <-ctx.Done():
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return ctx.Err()
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case <-t.C():
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}
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}
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}
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// PermanentError signals that the operation should not be retried.
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type PermanentError struct {
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Err error
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}
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func (e *PermanentError) Error() string {
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return e.Err.Error()
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}
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func (e *PermanentError) Unwrap() error {
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return e.Err
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}
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// Permanent wraps the given err in a *PermanentError.
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func Permanent(err error) *PermanentError {
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return &PermanentError{
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Err: err,
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}
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}
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