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94fbb03352
Add UploadLogs, a stateless alternative to NewLogger for callers that want to push a batch of log entries without the background uploader, ring buffer, stderr echoing, or network-up gating that a Logger provides. Entries are encoded, batched up to the server's maximum upload size, and POSTed synchronously; unlike Logger it does not retry. The Logger construction is split into a new unexported newLogger so the connection/encode/upload machinery is shared without starting the background goroutine. Log entries are modeled as a generic LogEntry[T] whose Value is inlined (via go-json-experiment) alongside the reserved "logtail" metadata member. T may be a struct (or pointer), a map with a string key, or a jsontext.Value; use jsontext.Value to mix differently-shaped payloads in a single upload. UploadLogs fills in client_time/proc_id/proc_seq from the Config where the caller leaves them zero. Updates tailscale/corp#40908 Change-Id: Idbf23cd0eb8233082fbdb9abed0f6f153b9225ba Signed-off-by: James Scott <jim@tailscale.com>
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & contributors
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build ts_omit_logtail
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package logtail
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import (
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"context"
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"iter"
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"time"
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tslogger "tailscale.com/types/logger"
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"tailscale.com/types/logid"
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)
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// Noop implementations of everything when ts_omit_logtail is set.
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type Logger struct{}
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type Buffer any
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type Logtail struct {
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ClientTime time.Time `json:"client_time,omitzero"`
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ProcID uint32 `json:"proc_id,omitzero"`
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ProcSeq uint64 `json:"proc_seq,omitzero"`
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}
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type LogEntry[T any] struct {
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Logtail Logtail `json:"logtail,omitzero"`
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Value T `json:",inline"`
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}
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func UploadLogs[T any](ctx context.Context, conf Config, entries iter.Seq[LogEntry[T]]) error {
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return nil
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}
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func Disable() {}
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func (*Logger) SetEnabled(enabled bool) {}
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func NewLogger(cfg Config, logf tslogger.Logf) *Logger {
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return &Logger{}
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}
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func (*Logger) Write(p []byte) (n int, err error) {
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return len(p), nil
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}
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func (*Logger) Logf(format string, args ...any) {}
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func (*Logger) Shutdown(ctx context.Context) error { return nil }
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func (*Logger) SetVerbosityLevel(level int) {}
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func (l *Logger) SetSockstatsLabel(label any) {}
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func (l *Logger) PrivateID() logid.PrivateID { return logid.PrivateID{} }
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func (l *Logger) StartFlush() {}
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func RegisterLogTap(dst chan<- string) (unregister func()) {
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return func() {}
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}
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func (*Logger) SetNetMon(any) {}
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