open-nomad/client/alloc_endpoint_test.go

1403 lines
38 KiB
Go

package client
import (
"encoding/json"
"fmt"
"io"
"net"
"runtime"
"strings"
"testing"
"time"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/nomad/acl"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/client/config"
cstructs "github.com/hashicorp/nomad/client/structs"
"github.com/hashicorp/nomad/helper/pluginutils/catalog"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad"
"github.com/hashicorp/nomad/nomad/mock"
nstructs "github.com/hashicorp/nomad/nomad/structs"
nconfig "github.com/hashicorp/nomad/nomad/structs/config"
"github.com/hashicorp/nomad/plugins/drivers"
"github.com/hashicorp/nomad/testutil"
"github.com/shoenig/test/must"
"github.com/stretchr/testify/require"
"golang.org/x/sys/unix"
)
func TestAllocations_Restart(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
client, cleanup := TestClient(t, nil)
defer cleanup()
a := mock.Alloc()
a.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
a.Job.TaskGroups[0].RestartPolicy = &nstructs.RestartPolicy{
Attempts: 0,
Mode: nstructs.RestartPolicyModeFail,
}
a.Job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "10s",
}
require.Nil(client.addAlloc(a, ""))
// Try with bad alloc
req := &nstructs.AllocRestartRequest{}
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp)
require.Error(err)
// Try with good alloc
req.AllocID = a.ID
testutil.WaitForResult(func() (bool, error) {
var resp2 nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp2)
if err != nil && strings.Contains(err.Error(), "not running") {
return false, err
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestAllocations_Restart_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
server, addr, root, cleanupS := testACLServer(t, nil)
defer cleanupS()
client, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{addr}
c.ACLEnabled = true
})
defer cleanupC()
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
}
// Wait for client to be running job
alloc := testutil.WaitForRunningWithToken(t, server.RPC, job, root.SecretID)[0]
// Try request without a token and expect failure
{
req := &nstructs.AllocRestartRequest{}
req.AllocID = alloc.ID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with an invalid token and expect failure
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "invalid", mock.NamespacePolicy(nstructs.DefaultNamespace, "", []string{}))
req := &nstructs.AllocRestartRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with a valid token
{
policyHCL := mock.NamespacePolicy(nstructs.DefaultNamespace, "", []string{acl.NamespaceCapabilityAllocLifecycle})
token := mock.CreatePolicyAndToken(t, server.State(), 1007, "valid", policyHCL)
require.NotNil(token)
req := &nstructs.AllocRestartRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
req.Namespace = nstructs.DefaultNamespace
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp)
require.NoError(err)
//require.True(nstructs.IsErrUnknownAllocation(err), "Expected unknown alloc, found: %v", err)
}
// Try request with a management token
{
req := &nstructs.AllocRestartRequest{}
req.AllocID = alloc.ID
req.AuthToken = root.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Restart", &req, &resp)
// Depending on how quickly the alloc restarts there may be no
// error *or* a task not running error; either is fine.
if err != nil {
require.Contains(err.Error(), "Task not running", err)
}
}
}
func TestAllocations_GarbageCollectAll(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
client, cleanup := TestClient(t, nil)
defer cleanup()
req := &nstructs.NodeSpecificRequest{}
var resp nstructs.GenericResponse
require.Nil(client.ClientRPC("Allocations.GarbageCollectAll", &req, &resp))
}
func TestAllocations_GarbageCollectAll_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
server, addr, root, cleanupS := testACLServer(t, nil)
defer cleanupS()
client, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{addr}
c.ACLEnabled = true
})
defer cleanupC()
// Try request without a token and expect failure
{
req := &nstructs.NodeSpecificRequest{}
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollectAll", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with an invalid token and expect failure
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "invalid", mock.NodePolicy(acl.PolicyDeny))
req := &nstructs.NodeSpecificRequest{}
req.AuthToken = token.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollectAll", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with a valid token
{
token := mock.CreatePolicyAndToken(t, server.State(), 1007, "valid", mock.NodePolicy(acl.PolicyWrite))
req := &nstructs.NodeSpecificRequest{}
req.AuthToken = token.SecretID
var resp nstructs.GenericResponse
require.Nil(client.ClientRPC("Allocations.GarbageCollectAll", &req, &resp))
}
// Try request with a management token
{
req := &nstructs.NodeSpecificRequest{}
req.AuthToken = root.SecretID
var resp nstructs.GenericResponse
require.Nil(client.ClientRPC("Allocations.GarbageCollectAll", &req, &resp))
}
}
func TestAllocations_GarbageCollect(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
client, cleanup := TestClient(t, func(c *config.Config) {
c.GCDiskUsageThreshold = 100.0
})
defer cleanup()
a := mock.Alloc()
a.Job.TaskGroups[0].Tasks[0].Driver = "mock_driver"
rp := &nstructs.RestartPolicy{
Attempts: 0,
Mode: nstructs.RestartPolicyModeFail,
}
a.Job.TaskGroups[0].RestartPolicy = rp
a.Job.TaskGroups[0].Tasks[0].RestartPolicy = rp
a.Job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "10ms",
}
require.Nil(client.addAlloc(a, ""))
// Try with bad alloc
req := &nstructs.AllocSpecificRequest{}
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp)
require.NotNil(err)
// Try with good alloc
req.AllocID = a.ID
testutil.WaitForResult(func() (bool, error) {
// Check if has been removed first
if ar, ok := client.allocs[a.ID]; !ok || ar.IsDestroyed() {
return true, nil
}
var resp2 nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp2)
return err == nil, err
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestAllocations_GarbageCollect_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
server, addr, root, cleanupS := testACLServer(t, nil)
defer cleanupS()
client, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{addr}
c.ACLEnabled = true
})
defer cleanupC()
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
}
noSuchAllocErr := fmt.Errorf("No such allocation on client or allocation not eligible for GC")
// Wait for client to be running job
alloc := testutil.WaitForRunningWithToken(t, server.RPC, job, root.SecretID)[0]
// Try request without a token and expect failure
{
req := &nstructs.AllocSpecificRequest{}
req.AllocID = alloc.ID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with an invalid token and expect failure
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "invalid", mock.NodePolicy(acl.PolicyDeny))
req := &nstructs.AllocSpecificRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with a valid token
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "test-valid",
mock.NamespacePolicy(nstructs.DefaultNamespace, "", []string{acl.NamespaceCapabilitySubmitJob}))
req := &nstructs.AllocSpecificRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
req.Namespace = nstructs.DefaultNamespace
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp)
require.Error(err, noSuchAllocErr)
}
// Try request with a management token
{
req := &nstructs.AllocSpecificRequest{}
req.AuthToken = root.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.GarbageCollect", &req, &resp)
require.Error(err, noSuchAllocErr)
}
}
func TestAllocations_Signal(t *testing.T) {
ci.Parallel(t)
client, cleanup := TestClient(t, nil)
defer cleanup()
a := mock.Alloc()
require.Nil(t, client.addAlloc(a, ""))
// Try with bad alloc
req := &nstructs.AllocSignalRequest{}
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Signal", &req, &resp)
require.NotNil(t, err)
require.True(t, nstructs.IsErrUnknownAllocation(err))
// Try with good alloc
req.AllocID = a.ID
var resp2 nstructs.GenericResponse
err = client.ClientRPC("Allocations.Signal", &req, &resp2)
require.Error(t, err, "Expected error, got: %s, resp: %#+v", err, resp2)
require.Contains(t, err.Error(), "Failed to signal task: web, err: Task not running")
}
func TestAllocations_Signal_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
server, addr, root, cleanupS := testACLServer(t, nil)
defer cleanupS()
client, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{addr}
c.ACLEnabled = true
})
defer cleanupC()
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
}
// Wait for client to be running job
alloc := testutil.WaitForRunningWithToken(t, server.RPC, job, root.SecretID)[0]
// Try request without a token and expect failure
{
req := &nstructs.AllocSignalRequest{}
req.AllocID = alloc.ID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Signal", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with an invalid token and expect failure
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "invalid", mock.NodePolicy(acl.PolicyDeny))
req := &nstructs.AllocSignalRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Signal", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with a valid token
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "test-valid",
mock.NamespacePolicy(nstructs.DefaultNamespace, "", []string{acl.NamespaceCapabilityAllocLifecycle}))
req := &nstructs.AllocSignalRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
req.Namespace = nstructs.DefaultNamespace
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Signal", &req, &resp)
require.NoError(err)
}
// Try request with a management token
{
req := &nstructs.AllocSignalRequest{}
req.AllocID = alloc.ID
req.AuthToken = root.SecretID
var resp nstructs.GenericResponse
err := client.ClientRPC("Allocations.Signal", &req, &resp)
require.NoError(err)
}
}
func TestAllocations_Stats(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
client, cleanup := TestClient(t, nil)
defer cleanup()
a := mock.Alloc()
require.Nil(client.addAlloc(a, ""))
// Try with bad alloc
req := &cstructs.AllocStatsRequest{}
var resp cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp)
require.NotNil(err)
// Try with good alloc
req.AllocID = a.ID
testutil.WaitForResult(func() (bool, error) {
var resp2 cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp2)
if err != nil {
return false, err
}
if resp2.Stats == nil {
return false, fmt.Errorf("invalid stats object")
}
return true, nil
}, func(err error) {
t.Fatalf("err: %v", err)
})
}
func TestAllocations_Stats_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
server, addr, root, cleanupS := testACLServer(t, nil)
defer cleanupS()
client, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{addr}
c.ACLEnabled = true
})
defer cleanupC()
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
}
// Wait for client to be running job
alloc := testutil.WaitForRunningWithToken(t, server.RPC, job, root.SecretID)[0]
// Try request without a token and expect failure
{
req := &cstructs.AllocStatsRequest{}
req.AllocID = alloc.ID
var resp cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with an invalid token and expect failure
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "invalid", mock.NodePolicy(acl.PolicyDeny))
req := &cstructs.AllocStatsRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
var resp cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp)
require.NotNil(err)
require.EqualError(err, nstructs.ErrPermissionDenied.Error())
}
// Try request with a valid token
{
token := mock.CreatePolicyAndToken(t, server.State(), 1005, "test-valid",
mock.NamespacePolicy(nstructs.DefaultNamespace, "", []string{acl.NamespaceCapabilityReadJob}))
req := &cstructs.AllocStatsRequest{}
req.AllocID = alloc.ID
req.AuthToken = token.SecretID
req.Namespace = nstructs.DefaultNamespace
var resp cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp)
require.NoError(err)
}
// Try request with a management token
{
req := &cstructs.AllocStatsRequest{}
req.AllocID = alloc.ID
req.AuthToken = root.SecretID
var resp cstructs.AllocStatsResponse
err := client.ClientRPC("Allocations.Stats", &req, &resp)
require.NoError(err)
}
}
func TestAlloc_Checks(t *testing.T) {
ci.Parallel(t)
client, cleanup := TestClient(t, nil)
t.Cleanup(func() {
must.NoError(t, cleanup())
})
now := time.Date(2022, 3, 4, 5, 6, 7, 8, time.UTC).Unix()
qr1 := &nstructs.CheckQueryResult{
ID: "abc123",
Mode: "healthiness",
Status: "passing",
Output: "nomad: http ok",
Timestamp: now,
Group: "group",
Task: "task",
Service: "service",
Check: "check",
}
qr2 := &nstructs.CheckQueryResult{
ID: "def456",
Mode: "readiness",
Status: "passing",
Output: "nomad: http ok",
Timestamp: now,
Group: "group",
Service: "service2",
Check: "check",
}
t.Run("alloc does not exist", func(t *testing.T) {
request := cstructs.AllocChecksRequest{AllocID: "d3e34248-4843-be75-d4fd-4899975cfb38"}
var response cstructs.AllocChecksResponse
err := client.ClientRPC("Allocations.Checks", &request, &response)
must.EqError(t, err, `Unknown allocation "d3e34248-4843-be75-d4fd-4899975cfb38"`)
})
t.Run("no checks for alloc", func(t *testing.T) {
alloc := mock.Alloc()
must.NoError(t, client.addAlloc(alloc, ""))
request := cstructs.AllocChecksRequest{AllocID: alloc.ID}
var response cstructs.AllocChecksResponse
err := client.ClientRPC("Allocations.Checks", &request, &response)
must.NoError(t, err)
must.MapEmpty(t, response.Results)
})
t.Run("two in one alloc", func(t *testing.T) {
alloc := mock.Alloc()
must.NoError(t, client.addAlloc(alloc, ""))
must.NoError(t, client.checkStore.Set(alloc.ID, qr1))
must.NoError(t, client.checkStore.Set(alloc.ID, qr2))
request := cstructs.AllocChecksRequest{AllocID: alloc.ID}
var response cstructs.AllocChecksResponse
err := client.ClientRPC("Allocations.Checks", &request, &response)
must.NoError(t, err)
must.MapEq(t, map[nstructs.CheckID]*nstructs.CheckQueryResult{
"abc123": qr1,
"def456": qr2,
}, response.Results)
})
t.Run("ignore unrelated alloc", func(t *testing.T) {
alloc1 := mock.Alloc()
must.NoError(t, client.addAlloc(alloc1, ""))
alloc2 := mock.Alloc()
must.NoError(t, client.addAlloc(alloc2, ""))
must.NoError(t, client.checkStore.Set(alloc1.ID, qr1))
must.NoError(t, client.checkStore.Set(alloc2.ID, qr2))
request := cstructs.AllocChecksRequest{AllocID: alloc1.ID}
var response cstructs.AllocChecksResponse
err := client.ClientRPC("Allocations.Checks", &request, &response)
must.NoError(t, err)
must.MapEq(t, map[nstructs.CheckID]*nstructs.CheckQueryResult{
"abc123": qr1,
}, response.Results)
})
}
func TestAlloc_ExecStreaming(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a server and client
s, cleanupS := nomad.TestServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
c, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{s.GetConfig().RPCAddr.String()}
})
defer cleanupC()
expectedStdout := "Hello from the other side\n"
expectedStderr := "Hello from the other side\n"
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"exec_command": map[string]interface{}{
"run_for": "1ms",
"stdout_string": expectedStdout,
"stderr_string": expectedStderr,
"exit_code": 3,
},
}
// Wait for client to be running job
testutil.WaitForRunning(t, s.RPC, job)
// Get the allocation ID
args := nstructs.AllocListRequest{}
args.Region = "global"
resp := nstructs.AllocListResponse{}
require.NoError(s.RPC("Alloc.List", &args, &resp))
require.Len(resp.Allocations, 1)
allocID := resp.Allocations[0].ID
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("Allocations.Exec")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
exitCode := -1
receivedStdout := ""
receivedStderr := ""
OUTER:
for {
select {
case <-timeout:
// time out report
require.Equal(expectedStdout, receivedStderr, "didn't receive expected stdout")
require.Equal(expectedStderr, receivedStderr, "didn't receive expected stderr")
require.Equal(3, exitCode, "failed to get exit code")
require.FailNow("timed out")
case err := <-errCh:
require.NoError(err)
case f := <-frames:
switch {
case f.Stdout != nil && len(f.Stdout.Data) != 0:
receivedStdout += string(f.Stdout.Data)
case f.Stderr != nil && len(f.Stderr.Data) != 0:
receivedStderr += string(f.Stderr.Data)
case f.Exited && f.Result != nil:
exitCode = int(f.Result.ExitCode)
default:
t.Logf("received unrelevant frame: %v", f)
}
if expectedStdout == receivedStdout && expectedStderr == receivedStderr && exitCode == 3 {
break OUTER
}
}
}
}
func TestAlloc_ExecStreaming_NoAllocation(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a server and client
s, cleanupS := nomad.TestServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
c, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{s.GetConfig().RPCAddr.String()}
})
defer cleanupC()
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: uuid.Generate(),
Task: "testtask",
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("Allocations.Exec")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
select {
case <-timeout:
require.FailNow("timed out")
case err := <-errCh:
require.True(nstructs.IsErrUnknownAllocation(err), "expected no allocation error but found: %v", err)
case f := <-frames:
require.Fail("received unexpected frame", "frame: %#v", f)
}
}
func TestAlloc_ExecStreaming_DisableRemoteExec(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a server and client
s, cleanupS := nomad.TestServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
c, cleanupC := TestClient(t, func(c *config.Config) {
c.Servers = []string{s.GetConfig().RPCAddr.String()}
c.DisableRemoteExec = true
})
defer cleanupC()
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: uuid.Generate(),
Task: "testtask",
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("Allocations.Exec")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
select {
case <-timeout:
require.FailNow("timed out")
case err := <-errCh:
require.True(nstructs.IsErrPermissionDenied(err), "expected permission denied error but found: %v", err)
case f := <-frames:
require.Fail("received unexpected frame", "frame: %#v", f)
}
}
func TestAlloc_ExecStreaming_ACL_Basic(t *testing.T) {
ci.Parallel(t)
// Start a server and client
s, root, cleanupS := nomad.TestACLServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
client, cleanupC := TestClient(t, func(c *config.Config) {
c.ACLEnabled = true
c.Servers = []string{s.GetConfig().RPCAddr.String()}
})
defer cleanupC()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyGood := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec, acl.NamespaceCapabilityReadFS})
tokenGood := mock.CreatePolicyAndToken(t, s.State(), 1009, "valid2", policyGood)
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
}
// Wait for client to be running job
alloc := testutil.WaitForRunningWithToken(t, s.RPC, job, root.SecretID)[0]
cases := []struct {
Name string
Token string
ExpectedError string
}{
{
Name: "bad token",
Token: tokenBad.SecretID,
ExpectedError: nstructs.ErrPermissionDenied.Error(),
},
{
Name: "good token",
Token: tokenGood.SecretID,
ExpectedError: "task not found",
},
{
Name: "root token",
Token: root.SecretID,
ExpectedError: "task not found",
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: alloc.ID,
Task: "testtask",
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: nstructs.DefaultNamespace,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("Allocations.Exec")
require.Nil(t, err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(t, encoder.Encode(req))
select {
case <-time.After(3 * time.Second):
require.FailNow(t, "timed out")
case err := <-errCh:
require.Contains(t, err.Error(), c.ExpectedError)
case f := <-frames:
require.Fail(t, "received unexpected frame", "frame: %#v", f)
}
})
}
}
// TestAlloc_ExecStreaming_ACL_WithIsolation_Image asserts that token only needs
// alloc-exec acl policy when image isolation is used
func TestAlloc_ExecStreaming_ACL_WithIsolation_Image(t *testing.T) {
ci.Parallel(t)
isolation := drivers.FSIsolationImage
// Start a server and client
s, root, cleanupS := nomad.TestACLServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
client, cleanupC := TestClient(t, func(c *config.Config) {
c.ACLEnabled = true
c.Servers = []string{s.GetConfig().RPCAddr.String()}
pluginConfig := []*nconfig.PluginConfig{
{
Name: "mock_driver",
Config: map[string]interface{}{
"fs_isolation": string(isolation),
},
},
}
c.PluginLoader = catalog.TestPluginLoaderWithOptions(t, "", map[string]string{}, pluginConfig)
})
defer cleanupC()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyAllocExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec})
tokenAllocExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "valid2", policyAllocExec)
policyAllocNodeExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec, acl.NamespaceCapabilityAllocNodeExec})
tokenAllocNodeExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "valid2", policyAllocNodeExec)
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"exec_command": map[string]interface{}{
"run_for": "1ms",
"stdout_string": "some output",
},
}
// Wait for client to be running job
testutil.WaitForRunningWithToken(t, s.RPC, job, root.SecretID)
// Get the allocation ID
args := nstructs.AllocListRequest{}
args.Region = "global"
args.AuthToken = root.SecretID
args.Namespace = nstructs.DefaultNamespace
resp := nstructs.AllocListResponse{}
require.NoError(t, s.RPC("Alloc.List", &args, &resp))
require.Len(t, resp.Allocations, 1)
allocID := resp.Allocations[0].ID
cases := []struct {
Name string
Token string
ExpectedError string
}{
{
Name: "bad token",
Token: tokenBad.SecretID,
ExpectedError: nstructs.ErrPermissionDenied.Error(),
},
{
Name: "alloc-exec token",
Token: tokenAllocExec.SecretID,
ExpectedError: "",
},
{
Name: "alloc-node-exec token",
Token: tokenAllocNodeExec.SecretID,
ExpectedError: "",
},
{
Name: "root token",
Token: root.SecretID,
ExpectedError: "",
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: nstructs.DefaultNamespace,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("Allocations.Exec")
require.Nil(t, err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(t, encoder.Encode(req))
select {
case <-time.After(3 * time.Second):
case err := <-errCh:
if c.ExpectedError == "" {
require.NoError(t, err)
} else {
require.Contains(t, err.Error(), c.ExpectedError)
}
case f := <-frames:
// we are good if we don't expect an error
if c.ExpectedError != "" {
require.Fail(t, "unexpected frame", "frame: %#v", f)
}
}
})
}
}
// TestAlloc_ExecStreaming_ACL_WithIsolation_Chroot asserts that token only needs
// alloc-exec acl policy when chroot isolation is used
func TestAlloc_ExecStreaming_ACL_WithIsolation_Chroot(t *testing.T) {
ci.SkipSlow(t, "flaky on GHA; too much disk IO")
ci.Parallel(t)
if runtime.GOOS != "linux" || unix.Geteuid() != 0 {
t.Skip("chroot isolation requires linux root")
}
isolation := drivers.FSIsolationChroot
// Start a server and client
s, root, cleanupS := nomad.TestACLServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
client, cleanup := TestClient(t, func(c *config.Config) {
c.ACLEnabled = true
c.Servers = []string{s.GetConfig().RPCAddr.String()}
pluginConfig := []*nconfig.PluginConfig{
{
Name: "mock_driver",
Config: map[string]interface{}{
"fs_isolation": string(isolation),
},
},
}
c.PluginLoader = catalog.TestPluginLoaderWithOptions(t, "", map[string]string{}, pluginConfig)
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyAllocExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec})
tokenAllocExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "alloc-exec", policyAllocExec)
policyAllocNodeExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec, acl.NamespaceCapabilityAllocNodeExec})
tokenAllocNodeExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "alloc-node-exec", policyAllocNodeExec)
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"exec_command": map[string]interface{}{
"run_for": "1ms",
"stdout_string": "some output",
},
}
// Wait for client to be running job
testutil.WaitForRunningWithToken(t, s.RPC, job, root.SecretID)
// Get the allocation ID
args := nstructs.AllocListRequest{}
args.Region = "global"
args.AuthToken = root.SecretID
args.Namespace = nstructs.DefaultNamespace
resp := nstructs.AllocListResponse{}
require.NoError(t, s.RPC("Alloc.List", &args, &resp))
require.Len(t, resp.Allocations, 1)
allocID := resp.Allocations[0].ID
cases := []struct {
Name string
Token string
ExpectedError string
}{
{
Name: "bad token",
Token: tokenBad.SecretID,
ExpectedError: nstructs.ErrPermissionDenied.Error(),
},
{
Name: "alloc-exec token",
Token: tokenAllocExec.SecretID,
ExpectedError: "",
},
{
Name: "alloc-node-exec token",
Token: tokenAllocNodeExec.SecretID,
ExpectedError: "",
},
{
Name: "root token",
Token: root.SecretID,
ExpectedError: "",
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: nstructs.DefaultNamespace,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("Allocations.Exec")
require.Nil(t, err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(t, encoder.Encode(req))
select {
case <-time.After(3 * time.Second):
case err := <-errCh:
if c.ExpectedError == "" {
require.NoError(t, err)
} else {
require.Contains(t, err.Error(), c.ExpectedError)
}
case f := <-frames:
// we are good if we don't expect an error
if c.ExpectedError != "" {
require.Fail(t, "unexpected frame", "frame: %#v", f)
}
}
})
}
}
// TestAlloc_ExecStreaming_ACL_WithIsolation_None asserts that token needs
// alloc-node-exec acl policy as well when no isolation is used
func TestAlloc_ExecStreaming_ACL_WithIsolation_None(t *testing.T) {
ci.Parallel(t)
isolation := drivers.FSIsolationNone
// Start a server and client
s, root, cleanupS := nomad.TestACLServer(t, nil)
defer cleanupS()
testutil.WaitForLeader(t, s.RPC)
client, cleanup := TestClient(t, func(c *config.Config) {
c.ACLEnabled = true
c.Servers = []string{s.GetConfig().RPCAddr.String()}
pluginConfig := []*nconfig.PluginConfig{
{
Name: "mock_driver",
Config: map[string]interface{}{
"fs_isolation": string(isolation),
},
},
}
c.PluginLoader = catalog.TestPluginLoaderWithOptions(t, "", map[string]string{}, pluginConfig)
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyAllocExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec})
tokenAllocExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "alloc-exec", policyAllocExec)
policyAllocNodeExec := mock.NamespacePolicy(nstructs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityAllocExec, acl.NamespaceCapabilityAllocNodeExec})
tokenAllocNodeExec := mock.CreatePolicyAndToken(t, s.State(), 1009, "alloc-node-exec", policyAllocNodeExec)
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"exec_command": map[string]interface{}{
"run_for": "1ms",
"stdout_string": "some output",
},
}
// Wait for client to be running job
testutil.WaitForRunningWithToken(t, s.RPC, job, root.SecretID)
// Get the allocation ID
args := nstructs.AllocListRequest{}
args.Region = "global"
args.AuthToken = root.SecretID
args.Namespace = nstructs.DefaultNamespace
resp := nstructs.AllocListResponse{}
require.NoError(t, s.RPC("Alloc.List", &args, &resp))
require.Len(t, resp.Allocations, 1)
allocID := resp.Allocations[0].ID
cases := []struct {
Name string
Token string
ExpectedError string
}{
{
Name: "bad token",
Token: tokenBad.SecretID,
ExpectedError: nstructs.ErrPermissionDenied.Error(),
},
{
Name: "alloc-exec token",
Token: tokenAllocExec.SecretID,
ExpectedError: nstructs.ErrPermissionDenied.Error(),
},
{
Name: "alloc-node-exec token",
Token: tokenAllocNodeExec.SecretID,
ExpectedError: "",
},
{
Name: "root token",
Token: root.SecretID,
ExpectedError: "",
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request
req := &cstructs.AllocExecRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
Tty: true,
Cmd: []string{"placeholder command"},
QueryOptions: nstructs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: nstructs.DefaultNamespace,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("Allocations.Exec")
require.Nil(t, err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
frames := make(chan *drivers.ExecTaskStreamingResponseMsg)
// Start the handler
go handler(p2)
go decodeFrames(t, p1, frames, errCh)
// Send the request
encoder := codec.NewEncoder(p1, nstructs.MsgpackHandle)
require.Nil(t, encoder.Encode(req))
select {
case <-time.After(3 * time.Second):
case err := <-errCh:
if c.ExpectedError == "" {
require.NoError(t, err)
} else {
require.Contains(t, err.Error(), c.ExpectedError)
}
case f := <-frames:
// we are good if we don't expect an error
if c.ExpectedError != "" {
require.Fail(t, "unexpected frame", "frame: %#v", f)
}
}
})
}
}
func decodeFrames(t *testing.T, p1 net.Conn, frames chan<- *drivers.ExecTaskStreamingResponseMsg, errCh chan<- error) {
// Start the decoder
decoder := codec.NewDecoder(p1, nstructs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
t.Logf("received error decoding: %#v", err)
errCh <- fmt.Errorf("error decoding: %v", err)
return
}
if msg.Error != nil {
errCh <- msg.Error
continue
}
var frame drivers.ExecTaskStreamingResponseMsg
if err := json.Unmarshal(msg.Payload, &frame); err != nil {
errCh <- err
return
}
t.Logf("received message: %#v", msg)
frames <- &frame
}
}