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Fix flaky TestExternalGraphDriver/pull test

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This test occassionally fails on s390x and Power;

    03:16:04 --- FAIL: TestExternalGraphDriver/pull (1.08s)
    03:16:04 external_test.go:402: assertion failed: error is not nil: Error: No such image: busybox:latest

Most likely these failures are caused due to Docker Hub updating
the busybox:latest image, but not all architectures yet being
available.

Instead of using `:latest`, pull an image by digest, so that
the test doesn't depend on Docker Hub having all architectures
available for `:latest`.

I selected the same digest as is currently used as "frozen image"
in the Dockerfile.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2018-07-17 10:45:33 +02:00
parent a5495f289a
commit 352db26d5f
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GPG key ID: 76698F39D527CE8C
1 changed files with 2 additions and 2 deletions
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4
integration/plugin/graphdriver/external_test.go
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@ -394,12 +394,12 @@ func testGraphDriverPull(c client.APIClient, d *daemon.Daemon) func(*testing.T)
defer d.Stop(t)
ctx := context.Background()
r, err := c.ImagePull(ctx, "busybox:latest", types.ImagePullOptions{})
r, err := c.ImagePull(ctx, "busybox:latest@sha256:bbc3a03235220b170ba48a157dd097dd1379299370e1ed99ce976df0355d24f0", types.ImagePullOptions{})
assert.NilError(t, err)
_, err = io.Copy(ioutil.Discard, r)
assert.NilError(t, err)
container.Run(t, ctx, c, container.WithImage("busybox:latest"))
container.Run(t, ctx, c, container.WithImage("busybox:latest@sha256:bbc3a03235220b170ba48a157dd097dd1379299370e1ed99ce976df0355d24f0"))
}
}