115 lines
3 KiB
Go
115 lines
3 KiB
Go
package build
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import (
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"bytes"
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"context"
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"io"
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"io/ioutil"
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"strings"
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"testing"
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"github.com/docker/docker/api/types"
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dclient "github.com/docker/docker/client"
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"github.com/docker/docker/integration/internal/container"
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"github.com/docker/docker/pkg/stdcopy"
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"github.com/docker/docker/testutil/daemon"
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"github.com/docker/docker/testutil/fakecontext"
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"gotest.tools/v3/assert"
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is "gotest.tools/v3/assert/cmp"
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"gotest.tools/v3/skip"
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)
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func TestBuildSquashParent(t *testing.T) {
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skip.If(t, testEnv.DaemonInfo.OSType == "windows")
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var client dclient.APIClient
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if !testEnv.DaemonInfo.ExperimentalBuild {
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skip.If(t, testEnv.IsRemoteDaemon, "cannot run daemon when remote daemon")
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d := daemon.New(t, daemon.WithExperimental())
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d.StartWithBusybox(t)
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defer d.Stop(t)
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client = d.NewClientT(t)
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} else {
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client = testEnv.APIClient()
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}
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dockerfile := `
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FROM busybox
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RUN echo hello > /hello
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RUN echo world >> /hello
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RUN echo hello > /remove_me
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ENV HELLO world
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RUN rm /remove_me
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`
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// build and get the ID that we can use later for history comparison
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ctx := context.Background()
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source := fakecontext.New(t, "", fakecontext.WithDockerfile(dockerfile))
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defer source.Close()
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name := strings.ToLower(t.Name())
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resp, err := client.ImageBuild(ctx,
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source.AsTarReader(t),
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types.ImageBuildOptions{
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Remove: true,
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ForceRemove: true,
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Tags: []string{name},
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})
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assert.NilError(t, err)
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_, err = io.Copy(ioutil.Discard, resp.Body)
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resp.Body.Close()
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assert.NilError(t, err)
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inspect, _, err := client.ImageInspectWithRaw(ctx, name)
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assert.NilError(t, err)
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origID := inspect.ID
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// build with squash
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resp, err = client.ImageBuild(ctx,
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source.AsTarReader(t),
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types.ImageBuildOptions{
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Remove: true,
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ForceRemove: true,
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Squash: true,
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Tags: []string{name},
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})
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assert.NilError(t, err)
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_, err = io.Copy(ioutil.Discard, resp.Body)
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resp.Body.Close()
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assert.NilError(t, err)
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cid := container.Run(ctx, t, client,
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container.WithImage(name),
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container.WithCmd("/bin/sh", "-c", "cat /hello"),
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)
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reader, err := client.ContainerLogs(ctx, cid, types.ContainerLogsOptions{
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ShowStdout: true,
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})
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assert.NilError(t, err)
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actualStdout := new(bytes.Buffer)
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actualStderr := ioutil.Discard
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_, err = stdcopy.StdCopy(actualStdout, actualStderr, reader)
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assert.NilError(t, err)
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assert.Check(t, is.Equal(strings.TrimSpace(actualStdout.String()), "hello\nworld"))
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container.Run(ctx, t, client,
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container.WithImage(name),
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container.WithCmd("/bin/sh", "-c", "[ ! -f /remove_me ]"),
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)
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container.Run(ctx, t, client,
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container.WithImage(name),
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container.WithCmd("/bin/sh", "-c", `[ "$(echo $HELLO)" = "world" ]`),
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)
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origHistory, err := client.ImageHistory(ctx, origID)
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assert.NilError(t, err)
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testHistory, err := client.ImageHistory(ctx, name)
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assert.NilError(t, err)
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inspect, _, err = client.ImageInspectWithRaw(ctx, name)
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assert.NilError(t, err)
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assert.Check(t, is.Len(testHistory, len(origHistory)+1))
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assert.Check(t, is.Len(inspect.RootFS.Layers, 2))
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}
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