514 lines
13 KiB
Go
514 lines
13 KiB
Go
package java
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import (
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"context"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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"time"
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dtestutil "github.com/hashicorp/nomad/plugins/drivers/testutils"
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ctestutil "github.com/hashicorp/nomad/client/testutil"
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"github.com/hashicorp/nomad/helper/pluginutils/hclutils"
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"github.com/hashicorp/nomad/helper/testlog"
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"github.com/hashicorp/nomad/helper/uuid"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/hashicorp/nomad/plugins/drivers"
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"github.com/hashicorp/nomad/testutil"
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"github.com/stretchr/testify/require"
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)
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func javaCompatible(t *testing.T) {
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ctestutil.JavaCompatible(t)
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_, _, _, err := javaVersionInfo()
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if err != nil {
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t.Skipf("java not found; skipping: %v", err)
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}
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}
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func TestJavaDriver_Fingerprint(t *testing.T) {
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javaCompatible(t)
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if !testutil.IsCI() {
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t.Parallel()
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}
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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fpCh, err := harness.Fingerprint(context.Background())
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require.NoError(t, err)
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select {
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case fp := <-fpCh:
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require.Equal(t, drivers.HealthStateHealthy, fp.Health)
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detected, _ := fp.Attributes["driver.java"].GetBool()
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require.True(t, detected)
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case <-time.After(time.Duration(testutil.TestMultiplier()*5) * time.Second):
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require.Fail(t, "timeout receiving fingerprint")
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}
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}
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func TestJavaDriver_Jar_Start_Wait(t *testing.T) {
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javaCompatible(t)
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if !testutil.IsCI() {
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t.Parallel()
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}
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require := require.New(t)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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tc := &TaskConfig{
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JarPath: "demoapp.jar",
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Args: []string{"1"},
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JvmOpts: []string{"-Xmx64m", "-Xms32m"},
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}
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task := basicTask(t, "demo-app", tc)
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cleanup := harness.MkAllocDir(task, true)
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defer cleanup()
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copyFile("./test-resources/demoapp.jar", filepath.Join(task.TaskDir().Dir, "demoapp.jar"), t)
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handle, _, err := harness.StartTask(task)
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require.NoError(err)
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ch, err := harness.WaitTask(context.Background(), handle.Config.ID)
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require.NoError(err)
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result := <-ch
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require.Nil(result.Err)
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require.Zero(result.ExitCode)
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// Get the stdout of the process and assert that it's not empty
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stdout, err := ioutil.ReadFile(filepath.Join(task.TaskDir().LogDir, "demo-app.stdout.0"))
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require.NoError(err)
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require.Contains(string(stdout), "Hello")
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require.NoError(harness.DestroyTask(task.ID, true))
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}
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func TestJavaDriver_Jar_Stop_Wait(t *testing.T) {
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javaCompatible(t)
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if !testutil.IsCI() {
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t.Parallel()
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}
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require := require.New(t)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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tc := &TaskConfig{
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JarPath: "demoapp.jar",
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Args: []string{"600"},
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JvmOpts: []string{"-Xmx64m", "-Xms32m"},
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}
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task := basicTask(t, "demo-app", tc)
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cleanup := harness.MkAllocDir(task, true)
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defer cleanup()
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copyFile("./test-resources/demoapp.jar", filepath.Join(task.TaskDir().Dir, "demoapp.jar"), t)
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handle, _, err := harness.StartTask(task)
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require.NoError(err)
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ch, err := harness.WaitTask(context.Background(), handle.Config.ID)
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require.NoError(err)
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require.NoError(harness.WaitUntilStarted(task.ID, 1*time.Second))
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go func() {
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time.Sleep(10 * time.Millisecond)
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harness.StopTask(task.ID, 2*time.Second, "SIGINT")
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}()
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select {
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case result := <-ch:
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require.False(result.Successful())
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case <-time.After(10 * time.Second):
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require.Fail("timeout waiting for task to shutdown")
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}
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// Ensure that the task is marked as dead, but account
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// for WaitTask() closing channel before internal state is updated
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testutil.WaitForResult(func() (bool, error) {
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status, err := harness.InspectTask(task.ID)
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if err != nil {
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return false, fmt.Errorf("inspecting task failed: %v", err)
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}
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if status.State != drivers.TaskStateExited {
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return false, fmt.Errorf("task hasn't exited yet; status: %v", status.State)
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}
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return true, nil
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}, func(err error) {
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require.NoError(err)
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})
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require.NoError(harness.DestroyTask(task.ID, true))
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}
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func TestJavaDriver_Class_Start_Wait(t *testing.T) {
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javaCompatible(t)
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if !testutil.IsCI() {
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t.Parallel()
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}
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require := require.New(t)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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tc := &TaskConfig{
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Class: "Hello",
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Args: []string{"1"},
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}
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task := basicTask(t, "demo-app", tc)
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cleanup := harness.MkAllocDir(task, true)
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defer cleanup()
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copyFile("./test-resources/Hello.class", filepath.Join(task.TaskDir().Dir, "Hello.class"), t)
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handle, _, err := harness.StartTask(task)
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require.NoError(err)
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ch, err := harness.WaitTask(context.Background(), handle.Config.ID)
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require.NoError(err)
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result := <-ch
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require.Nil(result.Err)
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require.Zero(result.ExitCode)
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// Get the stdout of the process and assert that it's not empty
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stdout, err := ioutil.ReadFile(filepath.Join(task.TaskDir().LogDir, "demo-app.stdout.0"))
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require.NoError(err)
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require.Contains(string(stdout), "Hello")
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require.NoError(harness.DestroyTask(task.ID, true))
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}
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func TestJavaCmdArgs(t *testing.T) {
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cases := []struct {
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name string
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cfg TaskConfig
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expected []string
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}{
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{
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"jar_path_full",
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TaskConfig{
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JvmOpts: []string{"-Xmx512m", "-Xms128m"},
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JarPath: "/jar-path.jar",
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Args: []string{"hello", "world"},
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},
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[]string{"-Xmx512m", "-Xms128m", "-jar", "/jar-path.jar", "hello", "world"},
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},
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{
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"class_full",
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TaskConfig{
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JvmOpts: []string{"-Xmx512m", "-Xms128m"},
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Class: "ClassName",
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ClassPath: "/classpath",
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Args: []string{"hello", "world"},
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},
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[]string{"-Xmx512m", "-Xms128m", "-cp", "/classpath", "ClassName", "hello", "world"},
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},
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{
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"jar_path_slim",
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TaskConfig{
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JarPath: "/jar-path.jar",
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},
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[]string{"-jar", "/jar-path.jar"},
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},
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{
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"class_slim",
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TaskConfig{
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Class: "ClassName",
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},
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[]string{"ClassName"},
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},
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}
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for _, c := range cases {
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t.Run(c.name, func(t *testing.T) {
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found := javaCmdArgs(c.cfg)
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require.Equal(t, c.expected, found)
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})
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}
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}
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func TestJavaDriver_ExecTaskStreaming(t *testing.T) {
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javaCompatible(t)
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if !testutil.IsCI() {
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t.Parallel()
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}
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require := require.New(t)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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defer harness.Kill()
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tc := &TaskConfig{
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Class: "Hello",
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Args: []string{"900"},
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}
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task := basicTask(t, "demo-app", tc)
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cleanup := harness.MkAllocDir(task, true)
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defer cleanup()
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copyFile("./test-resources/Hello.class", filepath.Join(task.TaskDir().Dir, "Hello.class"), t)
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_, _, err := harness.StartTask(task)
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require.NoError(err)
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defer d.DestroyTask(task.ID, true)
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dtestutil.ExecTaskStreamingConformanceTests(t, harness, task.ID)
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}
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func basicTask(t *testing.T, name string, taskConfig *TaskConfig) *drivers.TaskConfig {
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t.Helper()
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task := &drivers.TaskConfig{
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ID: uuid.Generate(),
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Name: name,
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Resources: &drivers.Resources{
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NomadResources: &structs.AllocatedTaskResources{
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Memory: structs.AllocatedMemoryResources{
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MemoryMB: 128,
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},
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Cpu: structs.AllocatedCpuResources{
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CpuShares: 100,
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},
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},
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LinuxResources: &drivers.LinuxResources{
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MemoryLimitBytes: 134217728,
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CPUShares: 100,
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},
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},
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}
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require.NoError(t, task.EncodeConcreteDriverConfig(&taskConfig))
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return task
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}
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// copyFile moves an existing file to the destination
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func copyFile(src, dst string, t *testing.T) {
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in, err := os.Open(src)
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if err != nil {
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t.Fatalf("copying %v -> %v failed: %v", src, dst, err)
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}
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defer in.Close()
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out, err := os.Create(dst)
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if err != nil {
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t.Fatalf("copying %v -> %v failed: %v", src, dst, err)
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}
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defer func() {
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if err := out.Close(); err != nil {
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t.Fatalf("copying %v -> %v failed: %v", src, dst, err)
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}
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}()
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if _, err = io.Copy(out, in); err != nil {
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t.Fatalf("copying %v -> %v failed: %v", src, dst, err)
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}
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}
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func TestConfig_ParseAllHCL(t *testing.T) {
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cfgStr := `
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config {
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class = "java.main"
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class_path = "/tmp/cp"
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jar_path = "/tmp/jar.jar"
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jvm_options = ["-Xmx600"]
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args = ["arg1", "arg2"]
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}`
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expected := &TaskConfig{
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Class: "java.main",
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ClassPath: "/tmp/cp",
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JarPath: "/tmp/jar.jar",
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JvmOpts: []string{"-Xmx600"},
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Args: []string{"arg1", "arg2"},
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}
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var tc *TaskConfig
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hclutils.NewConfigParser(taskConfigSpec).ParseHCL(t, cfgStr, &tc)
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require.EqualValues(t, expected, tc)
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}
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// Tests that a given DNSConfig properly configures dns
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func Test_dnsConfig(t *testing.T) {
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t.Parallel()
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ctestutil.RequireRoot(t)
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javaCompatible(t)
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require := require.New(t)
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ctx, cancel := context.WithCancel(context.Background())
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defer cancel()
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d := NewDriver(ctx, testlog.HCLogger(t))
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harness := dtestutil.NewDriverHarness(t, d)
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defer harness.Kill()
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cases := []struct {
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name string
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cfg *drivers.DNSConfig
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}{
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{
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name: "nil DNSConfig",
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},
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{
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name: "basic",
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cfg: &drivers.DNSConfig{
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Servers: []string{"1.1.1.1", "1.0.0.1"},
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},
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},
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{
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name: "full",
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cfg: &drivers.DNSConfig{
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Servers: []string{"1.1.1.1", "1.0.0.1"},
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Searches: []string{"local.test", "node.consul"},
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Options: []string{"ndots:2", "edns0"},
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},
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},
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}
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for _, c := range cases {
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tc := &TaskConfig{
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Class: "Hello",
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Args: []string{"900"},
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}
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task := basicTask(t, "demo-app", tc)
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task.DNS = c.cfg
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cleanup := harness.MkAllocDir(task, false)
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defer cleanup()
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_, _, err := harness.StartTask(task)
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require.NoError(err)
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defer d.DestroyTask(task.ID, true)
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dtestutil.TestTaskDNSConfig(t, harness, task.ID, c.cfg)
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}
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}
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func TestDriver_Config_validate(t *testing.T) {
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t.Run("pid/ipc", func(t *testing.T) {
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for _, tc := range []struct {
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pidMode, ipcMode string
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exp error
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}{
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{pidMode: "host", ipcMode: "host", exp: nil},
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{pidMode: "private", ipcMode: "host", exp: nil},
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{pidMode: "host", ipcMode: "private", exp: nil},
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{pidMode: "private", ipcMode: "private", exp: nil},
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{pidMode: "other", ipcMode: "private", exp: errors.New(`default_pid_mode must be "private" or "host", got "other"`)},
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{pidMode: "private", ipcMode: "other", exp: errors.New(`default_ipc_mode must be "private" or "host", got "other"`)},
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} {
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require.Equal(t, tc.exp, (&Config{
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DefaultModePID: tc.pidMode,
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DefaultModeIPC: tc.ipcMode,
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}).validate())
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}
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})
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t.Run("allow_caps", func(t *testing.T) {
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for _, tc := range []struct {
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ac []string
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exp error
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}{
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{ac: []string{}, exp: nil},
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{ac: []string{"all"}, exp: nil},
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{ac: []string{"chown", "sys_time"}, exp: nil},
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{ac: []string{"CAP_CHOWN", "cap_sys_time"}, exp: nil},
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{ac: []string{"chown", "not_valid", "sys_time"}, exp: errors.New("allow_caps configured with capabilities not supported by system: not_valid")},
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} {
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require.Equal(t, tc.exp, (&Config{
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DefaultModePID: "private",
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DefaultModeIPC: "private",
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AllowCaps: tc.ac,
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}).validate())
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}
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})
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}
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func TestDriver_TaskConfig_validate(t *testing.T) {
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t.Run("pid/ipc", func(t *testing.T) {
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for _, tc := range []struct {
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pidMode, ipcMode string
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exp error
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}{
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{pidMode: "host", ipcMode: "host", exp: nil},
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{pidMode: "host", ipcMode: "private", exp: nil},
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{pidMode: "host", ipcMode: "", exp: nil},
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{pidMode: "host", ipcMode: "other", exp: errors.New(`ipc_mode must be "private" or "host", got "other"`)},
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{pidMode: "host", ipcMode: "host", exp: nil},
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{pidMode: "private", ipcMode: "host", exp: nil},
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{pidMode: "", ipcMode: "host", exp: nil},
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{pidMode: "other", ipcMode: "host", exp: errors.New(`pid_mode must be "private" or "host", got "other"`)},
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} {
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require.Equal(t, tc.exp, (&TaskConfig{
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ModePID: tc.pidMode,
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ModeIPC: tc.ipcMode,
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}).validate())
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}
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})
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t.Run("cap_add", func(t *testing.T) {
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for _, tc := range []struct {
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adds []string
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exp error
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}{
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{adds: nil, exp: nil},
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{adds: []string{"chown"}, exp: nil},
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{adds: []string{"CAP_CHOWN"}, exp: nil},
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{adds: []string{"chown", "sys_time"}, exp: nil},
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{adds: []string{"chown", "not_valid", "sys_time"}, exp: errors.New("cap_add configured with capabilities not supported by system: not_valid")},
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} {
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require.Equal(t, tc.exp, (&TaskConfig{
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CapAdd: tc.adds,
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}).validate())
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}
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})
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t.Run("cap_drop", func(t *testing.T) {
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for _, tc := range []struct {
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drops []string
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exp error
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}{
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{drops: nil, exp: nil},
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{drops: []string{"chown"}, exp: nil},
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{drops: []string{"CAP_CHOWN"}, exp: nil},
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{drops: []string{"chown", "sys_time"}, exp: nil},
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{drops: []string{"chown", "not_valid", "sys_time"}, exp: errors.New("cap_drop configured with capabilities not supported by system: not_valid")},
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} {
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require.Equal(t, tc.exp, (&TaskConfig{
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CapDrop: tc.drops,
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}).validate())
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}
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})
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}
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