cri-o/vendor/github.com/opencontainers/runtime-tools/validation/validation_test.go

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package validation
import (
"fmt"
"io/ioutil"
"os"
"os/exec"
"path/filepath"
"testing"
"github.com/mrunalp/fileutils"
"github.com/opencontainers/runtime-tools/generate"
"github.com/satori/go.uuid"
)
var (
runtime = "runc"
)
func init() {
runtime = os.Getenv("RUNTIME")
}
func runtimeValidate(runtime string, g *generate.Generator) error {
// Find the runtime binary in the PATH
runtimePath, err := exec.LookPath(runtime)
if err != nil {
return err
}
// Setup a temporary test directory
tmpDir, err := ioutil.TempDir("", "ocitest")
if err != nil {
return err
}
defer os.RemoveAll(tmpDir)
// Create bundle directory for the test container
bundleDir := tmpDir + "/busybox"
if err := os.MkdirAll(bundleDir, 0755); err != nil {
return err
}
// Untar the root fs
untarCmd := exec.Command("tar", "-xf", "../rootfs.tar.gz", "-C", bundleDir)
output, err := untarCmd.CombinedOutput()
if err != nil {
fmt.Println(string(output))
return err
}
// Copy the runtimetest binary to the rootfs
err = fileutils.CopyFile("../runtimetest", filepath.Join(bundleDir, "runtimetest"))
// Generate test configuration
err = g.SaveToFile(filepath.Join(bundleDir, "config.json"), generate.ExportOptions{})
if err != nil {
return err
}
// TODO: Use a library to split run into create/start
// Launch the OCI runtime
containerID := uuid.NewV4()
runtimeCmd := exec.Command(runtimePath, "run", containerID.String())
runtimeCmd.Dir = bundleDir
runtimeCmd.Stdin = os.Stdin
runtimeCmd.Stdout = os.Stdout
runtimeCmd.Stderr = os.Stderr
if err = runtimeCmd.Run(); err != nil {
return err
}
return nil
}
func getDefaultGenerator() *generate.Generator {
g := generate.New()
g.SetRootPath(".")
g.SetProcessArgs([]string{"/runtimetest"})
return &g
}
func TestValidateBasic(t *testing.T) {
g := getDefaultGenerator()
if err := runtimeValidate(runtime, g); err != nil {
t.Errorf("%s failed validation: %v", runtime, err)
}
}
func TestValidateSysctls(t *testing.T) {
g := getDefaultGenerator()
g.AddLinuxSysctl("net.ipv4.ip_forward", "1")
if err := runtimeValidate(runtime, g); err != nil {
t.Errorf("%s failed validation: %v", runtime, err)
}
}