2018-03-06 10:41:43 -05:00
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package loggerutils // import "github.com/docker/docker/daemon/logger/loggerutils"
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2018-03-06 10:32:47 -05:00
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import (
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"bytes"
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"github.com/docker/docker/daemon/logger"
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"github.com/docker/docker/daemon/logger/templates"
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)
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// DefaultTemplate defines the defaults template logger should use.
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const DefaultTemplate = "{{.ID}}"
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// ParseLogTag generates a context aware tag for consistency across different
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// log drivers based on the context of the running container.
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func ParseLogTag(info logger.Info, defaultTemplate string) (string, error) {
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tagTemplate := info.Config["tag"]
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if tagTemplate == "" {
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tagTemplate = defaultTemplate
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}
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tmpl, err := templates.NewParse("log-tag", tagTemplate)
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if err != nil {
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return "", err
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}
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buf := new(bytes.Buffer)
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if err := tmpl.Execute(buf, &info); err != nil {
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return "", err
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}
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return buf.String(), nil
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}
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