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TUN-9371: Add logging format as JSON

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Closes TUN-9371
This commit is contained in:
Devin Carr
2025-06-16 21:25:13 +00:00
parent 43a3ba347b
commit a65da54933
7 changed files with 126 additions and 18 deletions
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20
cmd/cloudflared/cliutil/logger.go
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@@ -4,25 +4,32 @@ import (
"github.com/urfave/cli/v2"
"github.com/urfave/cli/v2/altsrc"
cfdflags "github.com/cloudflare/cloudflared/cmd/cloudflared/flags"
"github.com/cloudflare/cloudflared/cmd/cloudflared/flags"
)
var (
debugLevelWarning = "At debug level cloudflared will log request URL, method, protocol, content length, as well as, all request and response headers. " +
"This can expose sensitive information in your logs."
FlagLogOutput = &cli.StringFlag{
Name: flags.LogFormatOutput,
Usage: "Output format for the logs (default, json)",
Value: flags.LogFormatOutputValueDefault,
EnvVars: []string{"TUNNEL_MANAGEMENT_OUTPUT", "TUNNEL_LOG_OUTPUT"},
}
)
func ConfigureLoggingFlags(shouldHide bool) []cli.Flag {
return []cli.Flag{
altsrc.NewStringFlag(&cli.StringFlag{
Name: cfdflags.LogLevel,
Name: flags.LogLevel,
Value: "info",
Usage: "Application logging level {debug, info, warn, error, fatal}. " + debugLevelWarning,
EnvVars: []string{"TUNNEL_LOGLEVEL"},
Hidden: shouldHide,
}),
altsrc.NewStringFlag(&cli.StringFlag{
Name: cfdflags.TransportLogLevel,
Name: flags.TransportLogLevel,
Aliases: []string{"proto-loglevel"}, // This flag used to be called proto-loglevel
Value: "info",
Usage: "Transport logging level(previously called protocol logging level) {debug, info, warn, error, fatal}",
@@ -30,22 +37,23 @@ func ConfigureLoggingFlags(shouldHide bool) []cli.Flag {
Hidden: shouldHide,
}),
altsrc.NewStringFlag(&cli.StringFlag{
Name: cfdflags.LogFile,
Name: flags.LogFile,
Usage: "Save application log to this file for reporting issues.",
EnvVars: []string{"TUNNEL_LOGFILE"},
Hidden: shouldHide,
}),
altsrc.NewStringFlag(&cli.StringFlag{
Name: cfdflags.LogDirectory,
Name: flags.LogDirectory,
Usage: "Save application log to this directory for reporting issues.",
EnvVars: []string{"TUNNEL_LOGDIRECTORY"},
Hidden: shouldHide,
}),
altsrc.NewStringFlag(&cli.StringFlag{
Name: cfdflags.TraceOutput,
Name: flags.TraceOutput,
Usage: "Name of trace output file, generated when cloudflared stops.",
EnvVars: []string{"TUNNEL_TRACE_OUTPUT"},
Hidden: shouldHide,
}),
FlagLogOutput,
}
}