buildkit/frontend/dockerfile/dockerfile_ssh_test.go

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// +build dfssh
package dockerfile
import (
"context"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/containerd/continuity/fs/fstest"
"github.com/moby/buildkit/client"
"github.com/moby/buildkit/frontend/dockerfile/builder"
"github.com/moby/buildkit/session"
"github.com/moby/buildkit/session/sshforward/sshprovider"
"github.com/moby/buildkit/util/testutil/integration"
"github.com/stretchr/testify/require"
)
var sshTests = []integration.Test{
testSSHSocketParams,
}
func init() {
allTests = append(allTests, sshTests...)
}
func testSSHSocketParams(t *testing.T, sb integration.Sandbox) {
f := getFrontend(t, sb)
dockerfile := []byte(`
FROM busybox
RUN --mount=type=ssh,mode=741,uid=100,gid=102 [ "$(stat -c "%u %g %f" $SSH_AUTH_SOCK)" = "100 102 c1e1" ]
`)
dir, err := tmpdir(
fstest.CreateFile("Dockerfile", dockerfile, 0600),
)
require.NoError(t, err)
defer os.RemoveAll(dir)
c, err := client.New(context.TODO(), sb.Address())
require.NoError(t, err)
defer c.Close()
k, err := rsa.GenerateKey(rand.Reader, 1024)
require.NoError(t, err)
dt := pem.EncodeToMemory(
&pem.Block{
Type: "RSA PRIVATE KEY",
Bytes: x509.MarshalPKCS1PrivateKey(k),
},
)
tmpDir, err := ioutil.TempDir("", "buildkit")
require.NoError(t, err)
defer os.RemoveAll(tmpDir)
err = ioutil.WriteFile(filepath.Join(tmpDir, "key"), dt, 0600)
require.NoError(t, err)
ssh, err := sshprovider.NewSSHAgentProvider([]sshprovider.AgentConfig{{
Paths: []string{filepath.Join(tmpDir, "key")},
}})
require.NoError(t, err)
_, err = f.Solve(context.TODO(), c, client.SolveOpt{
LocalDirs: map[string]string{
builder.LocalNameDockerfile: dir,
builder.LocalNameContext: dir,
},
Session: []session.Attachable{ssh},
}, nil)
require.NoError(t, err)
}