Brad Fitzpatrick 57dd247376 cmd/tailscaled, logpolicy, logtail: support log levels ... Log levels can now be specified with "[v1] " or "[v2] " substrings that are then stripped and filtered at the final logger. This follows our existing "[unexpected]" etc convention and doesn't require a wholesale reworking of our logging at the moment. cmd/tailscaled then gets a new --verbose=N flag to take a log level that controls what gets logged to stderr (and thus systemd, syslog, etc). Logtail is unaffected by --verbose. This commit doesn't add annotations to any existing log prints. That is in the next commit. Updates #924 Updates #282 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>		2020-12-21 12:59:33 -08:00
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logpolicy.go	cmd/tailscaled, logpolicy, logtail: support log levels	2020-12-21 12:59:33 -08:00