28 lines
1.1 KiB
Go
28 lines
1.1 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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// If compiling statically, make sure osusergo build tag is also used to prevent a segfault
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// due to a glibc issue that won't be fixed in a short term
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// (see 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 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 := homedir.Get()
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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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