65 lines
1.8 KiB
Go
65 lines
1.8 KiB
Go
package agent
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import (
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"sync"
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"github.com/hashicorp/go-hclog"
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)
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// startupLogger is a shim that allows signal handling (and anything else) to
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// log to an appropriate output throughout several startup phases. Initially
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// when bootstrapping from HCP we need to log caught signals direct to the UI
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// output since logging is not setup yet and won't be if we are interrupted
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// before we try to start the agent itself. Later, during agent.Start we could
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// block retrieving auto TLS or auto-config from servers so need to handle
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// signals, but in this case logging has already started so we should log the
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// signal event to the logger.
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type startupLogger struct {
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mu sync.Mutex
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logger hclog.Logger
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}
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func newStartupLogger() *startupLogger {
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return &startupLogger{
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// Start off just using defaults for hclog since this is too early to have
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// parsed logging config even and we just want to get _something_ out to the
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// user.
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logger: hclog.New(&hclog.LoggerOptions{
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Name: "agent.startup",
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// Nothing else output in UI has a time prefix until logging is properly
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// setup so use the same prefix as other "Info" lines to make it look less
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// strange. Note one less space than in PrefixedUI since hclog puts a
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// space between the time prefix and log line already.
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TimeFormat: " ",
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}),
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}
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}
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func (l *startupLogger) SetLogger(logger hclog.Logger) {
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l.mu.Lock()
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defer l.mu.Unlock()
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l.logger = logger
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}
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func (l *startupLogger) Info(msg string, args ...interface{}) {
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l.mu.Lock()
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defer l.mu.Unlock()
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l.logger.Info(msg, args...)
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}
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func (l *startupLogger) Warn(msg string, args ...interface{}) {
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l.mu.Lock()
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defer l.mu.Unlock()
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l.logger.Warn(msg, args...)
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}
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func (l *startupLogger) Error(msg string, args ...interface{}) {
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l.mu.Lock()
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defer l.mu.Unlock()
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l.logger.Error(msg, args...)
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}
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