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integration: skip rootless if unsupported 

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>
docker-18.09
Akihiro Suda 2018-07-20 19:18:51 +09:00
parent 97b3652136
commit a9dcf63f45
1 changed files with 15 additions and 2 deletions
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17
util/testutil/integration/oci.go
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@ -14,6 +14,7 @@ import (
"github.com/google/shlex"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
func init() {
@ -23,9 +24,11 @@ func init() {
if s := os.Getenv("BUILDKIT_INTEGRATION_ROOTLESS_IDPAIR"); s != "" {
var uid, gid int
if _, err := fmt.Sscanf(s, "%d:%d", &uid, &gid); err != nil {
panic(errors.Errorf("unexpected BUILDKIT_INTEGRATION_ROOTLESS_IDPAIR: %q", s))
logrus.Fatalf("unexpected BUILDKIT_INTEGRATION_ROOTLESS_IDPAIR: %q", s)
}
if rootlessSupported(uid) {
register(&oci{uid: uid, gid: gid})
}
register(&oci{uid: uid, gid: gid})
}
}
@ -155,3 +158,13 @@ func runBuildkitd(args []string, logs map[string]*bytes.Buffer, uid, gid int) (a
return
}
func rootlessSupported(uid int) bool {
cmd := exec.Command("sudo", "-u", fmt.Sprintf("#%d", uid), "-i", "--", "unshare", "-U", "true")
b, err := cmd.CombinedOutput()
if err != nil {
logrus.Warnf("rootless mode is not supported on this host: %v (%s)", err, string(b))
return false
}
return true
}