diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/e2e/integration_test.go | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/e2e/integration_test.go b/test/e2e/integration_test.go index b798cf132..49cd74887 100644 --- a/test/e2e/integration_test.go +++ b/test/e2e/integration_test.go @@ -430,6 +430,39 @@ func TestTmpMount(t *testing.T) { } } +// TestSyntheticDirs checks that submounts can be created inside a readonly +// mount even if the target path does not exist. +func TestSyntheticDirs(t *testing.T) { + ctx := context.Background() + d := dockerutil.MakeContainer(ctx, t) + defer d.CleanUp(ctx) + + opts := dockerutil.RunOpts{ + Image: "basic/alpine", + // Make the root read-only to force use of synthetic dirs + // inside the root gofer mount. + ReadOnly: true, + Mounts: []mount.Mount{ + // Mount inside read-only gofer-backed root. + { + Type: mount.TypeTmpfs, + Target: "/foo/bar/baz", + }, + // Mount inside sysfs, which always uses synthetic dirs + // for submounts. + { + Type: mount.TypeTmpfs, + Target: "/sys/foo/bar/baz", + }, + }, + } + // Make sure the directories exist. + if _, err := d.Run(ctx, opts, "ls", "/foo/bar/baz", "/sys/foo/bar/baz"); err != nil { + t.Fatalf("docker run failed: %v", err) + } + +} + // TestHostOverlayfsCopyUp tests that the --overlayfs-stale-read option causes // runsc to hide the incoherence of FDs opened before and after overlayfs // copy-up on the host. |