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29 lines
1.2 KiB
Go
29 lines
1.2 KiB
Go
package gcplogs // import "github.com/docker/docker/daemon/logger/gcplogs"
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import (
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"os"
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"github.com/docker/docker/dockerversion"
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"github.com/docker/docker/pkg/homedir"
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"github.com/sirupsen/logrus"
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)
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// ensureHomeIfIAmStatic ensure $HOME to be set if dockerversion.IAmStatic is "true".
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// See issue #29344: gcplogs segfaults (static binary)
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// If HOME is not set, logging.NewClient() will call os/user.Current() via oauth2/google.
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// However, in static binary, os/user.Current() leads to segfault due to a glibc issue that won't be fixed
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// in a short term. (golang/go#13470, https://sourceware.org/bugzilla/show_bug.cgi?id=19341)
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// So we forcibly set HOME so as to avoid call to os/user/Current()
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func ensureHomeIfIAmStatic() error {
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// Note: dockerversion.IAmStatic and homedir.GetStatic() is only available for linux.
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// So we need to use them in this gcplogging_linux.go rather than in gcplogging.go
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if dockerversion.IAmStatic == "true" && os.Getenv("HOME") == "" {
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home, err := homedir.GetStatic()
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if err != nil {
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return err
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}
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logrus.Warnf("gcplogs requires HOME to be set for static daemon binary. Forcibly setting HOME to %s.", home)
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os.Setenv("HOME", home)
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}
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return nil
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}
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