open-nomad/client/fs_endpoint_test.go

2006 lines
45 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package client
import (
"context"
"fmt"
"io"
"math"
"net"
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
"sync"
"testing"
"time"
"github.com/hashicorp/go-msgpack/v2/codec"
"github.com/hashicorp/nomad/acl"
"github.com/hashicorp/nomad/ci"
"github.com/hashicorp/nomad/client/allocdir"
"github.com/hashicorp/nomad/client/config"
sframer "github.com/hashicorp/nomad/client/lib/streamframer"
cstructs "github.com/hashicorp/nomad/client/structs"
"github.com/hashicorp/nomad/helper/testlog"
"github.com/hashicorp/nomad/helper/uuid"
"github.com/hashicorp/nomad/nomad"
"github.com/hashicorp/nomad/nomad/mock"
"github.com/hashicorp/nomad/nomad/structs"
"github.com/hashicorp/nomad/testutil"
"github.com/stretchr/testify/require"
)
// tempAllocDir returns a new alloc dir that is rooted in a temp dir. Caller
// should cleanup with AllocDir.Destroy()
func tempAllocDir(t testing.TB) *allocdir.AllocDir {
dir := t.TempDir()
require.NoError(t, os.Chmod(dir, 0o777))
return allocdir.NewAllocDir(testlog.HCLogger(t), dir, "test_allocid")
}
type nopWriteCloser struct {
io.Writer
}
func (n nopWriteCloser) Close() error {
return nil
}
func TestFS_Stat_NoAlloc(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a client
c, cleanup := TestClient(t, nil)
defer cleanup()
// Make the request with bad allocation id
req := &cstructs.FsStatRequest{
AllocID: uuid.Generate(),
Path: "foo",
QueryOptions: structs.QueryOptions{Region: "global"},
}
var resp cstructs.FsStatResponse
err := c.ClientRPC("FileSystem.Stat", req, &resp)
require.NotNil(err)
require.True(structs.IsErrUnknownAllocation(err))
}
func TestFS_Stat(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()
// Create and add an alloc
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "500ms",
}
// Wait for alloc to be running
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsStatRequest{
AllocID: alloc.ID,
Path: "/",
QueryOptions: structs.QueryOptions{Region: "global"},
}
var resp cstructs.FsStatResponse
err := c.ClientRPC("FileSystem.Stat", req, &resp)
require.Nil(err)
require.NotNil(resp.Info)
require.True(resp.Info.IsDir)
}
func TestFS_Stat_ACL(t *testing.T) {
ci.Parallel(t)
// Start a server
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()}
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyGood := mock.NamespacePolicy(structs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityReadLogs, 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: structs.ErrPermissionDenied.Error(),
},
{
Name: "good token",
Token: tokenGood.SecretID,
},
{
Name: "root token",
Token: root.SecretID,
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
req := &cstructs.FsStatRequest{
AllocID: alloc.ID,
Path: "/",
QueryOptions: structs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: structs.DefaultNamespace,
},
}
var resp cstructs.FsStatResponse
err := client.ClientRPC("FileSystem.Stat", req, &resp)
if c.ExpectedError == "" {
require.NoError(t, err)
} else {
require.NotNil(t, err)
require.Contains(t, err.Error(), c.ExpectedError)
}
})
}
}
func TestFS_List_NoAlloc(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a client
c, cleanup := TestClient(t, nil)
defer cleanup()
// Make the request with bad allocation id
req := &cstructs.FsListRequest{
AllocID: uuid.Generate(),
Path: "foo",
QueryOptions: structs.QueryOptions{Region: "global"},
}
var resp cstructs.FsListResponse
err := c.ClientRPC("FileSystem.List", req, &resp)
require.NotNil(err)
require.True(structs.IsErrUnknownAllocation(err))
}
func TestFS_List(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()
// Create and add an alloc
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "500ms",
}
// Wait for alloc to be running
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsListRequest{
AllocID: alloc.ID,
Path: "/",
QueryOptions: structs.QueryOptions{Region: "global"},
}
var resp cstructs.FsListResponse
err := c.ClientRPC("FileSystem.List", req, &resp)
require.Nil(err)
require.NotEmpty(resp.Files)
require.True(resp.Files[0].IsDir)
}
func TestFS_List_ACL(t *testing.T) {
ci.Parallel(t)
// Start a server
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()}
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityDeny})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyGood := mock.NamespacePolicy(structs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityReadLogs, 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: structs.ErrPermissionDenied.Error(),
},
{
Name: "good token",
Token: tokenGood.SecretID,
},
{
Name: "root token",
Token: root.SecretID,
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request with bad allocation id
req := &cstructs.FsListRequest{
AllocID: alloc.ID,
Path: "/",
QueryOptions: structs.QueryOptions{
Region: "global",
AuthToken: c.Token,
Namespace: structs.DefaultNamespace,
},
}
var resp cstructs.FsListResponse
err := client.ClientRPC("FileSystem.List", req, &resp)
if c.ExpectedError == "" {
require.NoError(t, err)
} else {
require.EqualError(t, err, c.ExpectedError)
}
})
}
}
func TestFS_Stream_NoAlloc(t *testing.T) {
ci.Parallel(t)
ci.SkipSlow(t, "flaky on GHA; #12358")
require := require.New(t)
// Start a client
c, cleanup := TestClient(t, nil)
defer cleanup()
// Make the request with bad allocation id
req := &cstructs.FsStreamRequest{
AllocID: uuid.Generate(),
Path: "foo",
Origin: "start",
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Stream")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
t.Logf("Got msg %+v", msg)
if msg.Error == nil {
continue
}
if structs.IsErrUnknownAllocation(msg.Error) {
break OUTER
} else {
t.Fatalf("bad error: %v", err)
}
}
}
}
func TestFS_Stream_ACL(t *testing.T) {
ci.Parallel(t)
// Start a server
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()}
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityReadFS})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyGood := mock.NamespacePolicy(structs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityReadLogs, 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: structs.ErrPermissionDenied.Error(),
},
{
Name: "good token",
Token: tokenGood.SecretID,
},
{
Name: "root token",
Token: root.SecretID,
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request with bad allocation id
req := &cstructs.FsStreamRequest{
AllocID: alloc.ID,
Path: "foo",
Origin: "start",
QueryOptions: structs.QueryOptions{
Namespace: structs.DefaultNamespace,
Region: "global",
AuthToken: c.Token,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("FileSystem.Stream")
require.Nil(t, err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
errCh <- err
return
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.NoError(t, encoder.Encode(req))
timeout := time.After(5 * time.Second)
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
eof := err == io.EOF || strings.Contains(err.Error(), "closed")
if c.ExpectedError == "" && eof {
// No error was expected!
return
}
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error == nil {
continue
}
if strings.Contains(msg.Error.Error(), c.ExpectedError) {
break OUTER
} else {
t.Fatalf("Bad error: %v", msg.Error)
}
}
}
})
}
}
func TestFS_Stream(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()
expected := "Hello from the other side"
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "2s",
"stdout_string": expected,
}
// Wait for alloc to be running
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsStreamRequest{
AllocID: alloc.ID,
Path: "alloc/logs/web.stdout.0",
PlainText: true,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Stream")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
// Wrap the pipe so we can check it is closed
pipeChecker := &ReadWriteCloseChecker{ReadWriteCloser: p2}
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(pipeChecker)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
received := ""
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error != nil {
t.Fatalf("Got error: %v", msg.Error.Error())
}
// Add the payload
received += string(msg.Payload)
if received == expected {
break OUTER
}
}
}
testutil.WaitForResult(func() (bool, error) {
pipeChecker.l.Lock()
defer pipeChecker.l.Unlock()
return pipeChecker.Closed, nil
}, func(err error) {
t.Fatal("Pipe not closed")
})
}
type ReadWriteCloseChecker struct {
io.ReadWriteCloser
l sync.Mutex
Closed bool
}
func (r *ReadWriteCloseChecker) Close() error {
r.l.Lock()
r.Closed = true
r.l.Unlock()
return r.ReadWriteCloser.Close()
}
func TestFS_Stream_Follow(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()
expectedBase := "Hello from the other side"
repeat := 10
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"stdout_string": expectedBase,
"stdout_repeat": repeat,
"stdout_repeat_duration": "200ms",
}
// Wait for alloc to be running
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsStreamRequest{
AllocID: alloc.ID,
Path: "alloc/logs/web.stdout.0",
PlainText: true,
Follow: true,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Stream")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(20 * time.Second)
expected := strings.Repeat(expectedBase, repeat+1)
received := ""
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error != nil {
t.Fatalf("Got error: %v", msg.Error.Error())
}
// Add the payload
received += string(msg.Payload)
if received == expected {
break OUTER
}
}
}
}
func TestFS_Stream_Limit(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, cleanup := TestClient(t, func(c *config.Config) {
c.Servers = []string{s.GetConfig().RPCAddr.String()}
})
defer cleanup()
var limit int64 = 5
full := "Hello from the other side"
expected := full[:limit]
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "2s",
"stdout_string": full,
}
// Wait for alloc to be running
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsStreamRequest{
AllocID: alloc.ID,
Path: "alloc/logs/web.stdout.0",
PlainText: true,
Limit: limit,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Stream")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
received := ""
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error != nil {
t.Fatalf("Got error: %v", msg.Error.Error())
}
// Add the payload
received += string(msg.Payload)
if received == expected {
break OUTER
}
}
}
}
func TestFS_Logs_NoAlloc(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a client
c, cleanup := TestClient(t, nil)
defer cleanup()
// Make the request with bad allocation id
req := &cstructs.FsLogsRequest{
AllocID: uuid.Generate(),
Task: "foo",
LogType: "stdout",
Origin: "start",
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Logs")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
t.Logf("Got msg %+v", msg)
if msg.Error == nil {
continue
}
if structs.IsErrUnknownAllocation(msg.Error) {
break OUTER
} else {
t.Fatalf("bad error: %v", err)
}
}
}
}
// TestFS_Logs_TaskPending asserts that trying to stream logs for tasks which
// have not started returns a 404 error.
func TestFS_Logs_TaskPending(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()
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"start_block_for": "10s",
}
// Register job
args := &structs.JobRegisterRequest{}
args.Job = job
args.WriteRequest.Region = "global"
args.Namespace = job.Namespace
var jobResp structs.JobRegisterResponse
require.NoError(s.RPC("Job.Register", args, &jobResp))
// Get the allocation ID
var allocID string
testutil.WaitForResult(func() (bool, error) {
args := structs.AllocListRequest{}
args.Region = "global"
resp := structs.AllocListResponse{}
if err := s.RPC("Alloc.List", &args, &resp); err != nil {
return false, err
}
if len(resp.Allocations) != 1 {
return false, fmt.Errorf("expected 1 alloc, found %d", len(resp.Allocations))
}
allocID = resp.Allocations[0].ID
// wait for alloc runner to be created; otherwise, we get no alloc found error
if _, err := c.getAllocRunner(allocID); err != nil {
return false, fmt.Errorf("alloc runner was not created yet for %v", allocID)
}
return true, nil
}, func(err error) {
t.Fatalf("error getting alloc id: %v", err)
})
// Make the request
req := &cstructs.FsLogsRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
LogType: "stdout",
Origin: "start",
PlainText: true,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Logs")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
for {
select {
case <-time.After(3 * time.Second):
t.Fatal("timeout")
case err := <-errCh:
t.Fatalf("unexpected stream error: %v", err)
case msg := <-streamMsg:
require.NotNil(msg.Error)
require.NotNil(msg.Error.Code)
require.EqualValues(404, *msg.Error.Code)
require.Contains(msg.Error.Message, "not started")
return
}
}
}
func TestFS_Logs_ACL(t *testing.T) {
ci.Parallel(t)
require := require.New(t)
// Start a server
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()}
})
defer cleanup()
// Create a bad token
policyBad := mock.NamespacePolicy("other", "", []string{acl.NamespaceCapabilityReadFS})
tokenBad := mock.CreatePolicyAndToken(t, s.State(), 1005, "invalid", policyBad)
policyGood := mock.NamespacePolicy(structs.DefaultNamespace, "",
[]string{acl.NamespaceCapabilityReadLogs, 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: structs.ErrPermissionDenied.Error(),
},
{
Name: "good token",
Token: tokenGood.SecretID,
},
{
Name: "root token",
Token: root.SecretID,
},
}
for _, c := range cases {
t.Run(c.Name, func(t *testing.T) {
// Make the request with bad allocation id
req := &cstructs.FsLogsRequest{
AllocID: alloc.ID,
Task: job.TaskGroups[0].Tasks[0].Name,
LogType: "stdout",
Origin: "start",
QueryOptions: structs.QueryOptions{
Namespace: structs.DefaultNamespace,
Region: "global",
AuthToken: c.Token,
},
}
// Get the handler
handler, err := client.StreamingRpcHandler("FileSystem.Logs")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
errCh <- err
return
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(5 * time.Second)
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
eof := err == io.EOF || strings.Contains(err.Error(), "closed")
if c.ExpectedError == "" && eof {
// No error was expected!
return
}
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error == nil {
continue
}
if strings.Contains(msg.Error.Error(), c.ExpectedError) {
// Ok! Error matched expectation.
break OUTER
} else {
t.Fatalf("Bad error: %v", msg.Error)
}
}
}
})
}
}
func TestFS_Logs(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()
expected := "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": "2s",
"stdout_string": expected,
}
// Wait for client to be running job
testutil.WaitForRunning(t, s.RPC, job)
// Get the allocation ID
args := structs.AllocListRequest{}
args.Region = "global"
resp := structs.AllocListResponse{}
require.NoError(s.RPC("Alloc.List", &args, &resp))
require.Len(resp.Allocations, 1)
allocID := resp.Allocations[0].ID
// Make the request
req := &cstructs.FsLogsRequest{
AllocID: allocID,
Task: job.TaskGroups[0].Tasks[0].Name,
LogType: "stdout",
Origin: "start",
PlainText: true,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Logs")
require.Nil(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(3 * time.Second)
received := ""
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error != nil {
t.Fatalf("Got error: %v", msg.Error.Error())
}
// Add the payload
received += string(msg.Payload)
if received == expected {
break OUTER
}
}
}
}
func TestFS_Logs_Follow(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()
expectedBase := "Hello from the other side\n"
repeat := 10
job := mock.BatchJob()
job.TaskGroups[0].Count = 1
job.TaskGroups[0].Tasks[0].Config = map[string]interface{}{
"run_for": "20s",
"stdout_string": expectedBase,
"stdout_repeat": repeat,
"stdout_repeat_duration": "200ms",
}
// Wait for client to be running job
alloc := testutil.WaitForRunning(t, s.RPC, job)[0]
// Make the request
req := &cstructs.FsLogsRequest{
AllocID: alloc.ID,
Task: job.TaskGroups[0].Tasks[0].Name,
LogType: "stdout",
Origin: "start",
PlainText: true,
Follow: true,
QueryOptions: structs.QueryOptions{Region: "global"},
}
// Get the handler
handler, err := c.StreamingRpcHandler("FileSystem.Logs")
require.NoError(err)
// Create a pipe
p1, p2 := net.Pipe()
defer p1.Close()
defer p2.Close()
errCh := make(chan error)
streamMsg := make(chan *cstructs.StreamErrWrapper)
// Start the handler
go handler(p2)
// Start the decoder
go func() {
decoder := codec.NewDecoder(p1, structs.MsgpackHandle)
for {
var msg cstructs.StreamErrWrapper
if err := decoder.Decode(&msg); err != nil {
if err == io.EOF || strings.Contains(err.Error(), "closed") {
return
}
errCh <- fmt.Errorf("error decoding: %v", err)
}
streamMsg <- &msg
}
}()
// Send the request
encoder := codec.NewEncoder(p1, structs.MsgpackHandle)
require.Nil(encoder.Encode(req))
timeout := time.After(20 * time.Second)
expected := strings.Repeat(expectedBase, repeat+1)
received := ""
OUTER:
for {
select {
case <-timeout:
t.Fatal("timeout")
case err := <-errCh:
t.Fatal(err)
case msg := <-streamMsg:
if msg.Error != nil {
t.Fatalf("Got error: %v", msg.Error.Error())
}
// Add the payload
received += string(msg.Payload)
if received == expected {
break OUTER
}
}
}
}
func TestFS_findClosest(t *testing.T) {
task := "foo"
entries := []*cstructs.AllocFileInfo{
{
Name: "foo.stdout.0",
Size: 100,
},
{
Name: "foo.stdout.1",
Size: 100,
},
{
Name: "foo.stdout.2",
Size: 100,
},
{
Name: "foo.stdout.3",
Size: 100,
},
{
Name: "foo.stderr.0",
Size: 100,
},
{
Name: "foo.stderr.1",
Size: 100,
},
{
Name: "foo.stderr.2",
Size: 100,
},
}
cases := []struct {
Entries []*cstructs.AllocFileInfo
DesiredIdx int64
DesiredOffset int64
Task string
LogType string
ExpectedFile string
ExpectedIdx int64
ExpectedOffset int64
Error bool
}{
// Test error cases
{
Entries: nil,
DesiredIdx: 0,
Task: task,
LogType: "stdout",
Error: true,
},
{
Entries: entries[0:3],
DesiredIdx: 0,
Task: task,
LogType: "stderr",
Error: true,
},
// Test beginning cases
{
Entries: entries,
DesiredIdx: 0,
Task: task,
LogType: "stdout",
ExpectedFile: entries[0].Name,
ExpectedIdx: 0,
},
{
// Desired offset should be ignored at edges
Entries: entries,
DesiredIdx: 0,
DesiredOffset: -100,
Task: task,
LogType: "stdout",
ExpectedFile: entries[0].Name,
ExpectedIdx: 0,
ExpectedOffset: 0,
},
{
// Desired offset should be ignored at edges
Entries: entries,
DesiredIdx: 1,
DesiredOffset: -1000,
Task: task,
LogType: "stdout",
ExpectedFile: entries[0].Name,
ExpectedIdx: 0,
ExpectedOffset: 0,
},
{
Entries: entries,
DesiredIdx: 0,
Task: task,
LogType: "stderr",
ExpectedFile: entries[4].Name,
ExpectedIdx: 0,
},
{
Entries: entries,
DesiredIdx: 0,
Task: task,
LogType: "stdout",
ExpectedFile: entries[0].Name,
ExpectedIdx: 0,
},
// Test middle cases
{
Entries: entries,
DesiredIdx: 1,
Task: task,
LogType: "stdout",
ExpectedFile: entries[1].Name,
ExpectedIdx: 1,
},
{
Entries: entries,
DesiredIdx: 1,
DesiredOffset: 10,
Task: task,
LogType: "stdout",
ExpectedFile: entries[1].Name,
ExpectedIdx: 1,
ExpectedOffset: 10,
},
{
Entries: entries,
DesiredIdx: 1,
DesiredOffset: 110,
Task: task,
LogType: "stdout",
ExpectedFile: entries[2].Name,
ExpectedIdx: 2,
ExpectedOffset: 10,
},
{
Entries: entries,
DesiredIdx: 1,
Task: task,
LogType: "stderr",
ExpectedFile: entries[5].Name,
ExpectedIdx: 1,
},
// Test end cases
{
Entries: entries,
DesiredIdx: math.MaxInt64,
Task: task,
LogType: "stdout",
ExpectedFile: entries[3].Name,
ExpectedIdx: 3,
},
{
Entries: entries,
DesiredIdx: math.MaxInt64,
DesiredOffset: math.MaxInt64,
Task: task,
LogType: "stdout",
ExpectedFile: entries[3].Name,
ExpectedIdx: 3,
ExpectedOffset: 100,
},
{
Entries: entries,
DesiredIdx: math.MaxInt64,
DesiredOffset: -10,
Task: task,
LogType: "stdout",
ExpectedFile: entries[3].Name,
ExpectedIdx: 3,
ExpectedOffset: 90,
},
{
Entries: entries,
DesiredIdx: math.MaxInt64,
Task: task,
LogType: "stderr",
ExpectedFile: entries[6].Name,
ExpectedIdx: 2,
},
}
for i, c := range cases {
entry, idx, offset, err := findClosest(c.Entries, c.DesiredIdx, c.DesiredOffset, c.Task, c.LogType)
if err != nil {
if !c.Error {
t.Fatalf("case %d: Unexpected error: %v", i, err)
}
continue
}
if entry.Name != c.ExpectedFile {
t.Fatalf("case %d: Got file %q; want %q", i, entry.Name, c.ExpectedFile)
}
if idx != c.ExpectedIdx {
t.Fatalf("case %d: Got index %d; want %d", i, idx, c.ExpectedIdx)
}
if offset != c.ExpectedOffset {
t.Fatalf("case %d: Got offset %d; want %d", i, offset, c.ExpectedOffset)
}
}
}
func TestFS_streamFile_NoFile(t *testing.T) {
ci.Parallel(t)
c, cleanup := TestClient(t, nil)
defer cleanup()
ad := tempAllocDir(t)
defer ad.Destroy()
frames := make(chan *sframer.StreamFrame, 32)
framer := sframer.NewStreamFramer(frames, streamHeartbeatRate, streamBatchWindow, streamFrameSize)
framer.Run()
defer framer.Destroy()
err := c.endpoints.FileSystem.streamFile(
context.Background(), 0, "foo", 0, ad, framer, nil, false)
require.Error(t, err)
if runtime.GOOS == "windows" {
require.Contains(t, err.Error(), "cannot find the file")
} else {
require.Contains(t, err.Error(), "no such file")
}
}
func TestFS_streamFile_Modify(t *testing.T) {
ci.Parallel(t)
c, cleanup := TestClient(t, nil)
defer cleanup()
// Get a temp alloc dir
ad := tempAllocDir(t)
require.NoError(t, ad.Build())
defer ad.Destroy()
// Create a file in the temp dir
streamFile := "stream_file"
f, err := os.Create(filepath.Join(ad.AllocDir, streamFile))
if err != nil {
t.Fatalf("Failed to create file: %v", err)
}
defer f.Close()
data := []byte("helloworld")
// Start the reader
resultCh := make(chan struct{})
frames := make(chan *sframer.StreamFrame, 4)
go func() {
var collected []byte
for {
frame := <-frames
if frame.IsHeartbeat() {
continue
}
collected = append(collected, frame.Data...)
if reflect.DeepEqual(data, collected) {
resultCh <- struct{}{}
return
}
}
}()
// Write a few bytes
if _, err := f.Write(data[:3]); err != nil {
t.Fatalf("write failed: %v", err)
}
framer := sframer.NewStreamFramer(frames, streamHeartbeatRate, streamBatchWindow, streamFrameSize)
framer.Run()
defer framer.Destroy()
// Start streaming
go func() {
if err := c.endpoints.FileSystem.streamFile(
context.Background(), 0, streamFile, 0, ad, framer, nil, false); err != nil {
t.Fatalf("stream() failed: %v", err)
}
}()
// Sleep a little before writing more. This lets us check if the watch
// is working.
time.Sleep(1 * time.Duration(testutil.TestMultiplier()) * time.Second)
if _, err := f.Write(data[3:]); err != nil {
t.Fatalf("write failed: %v", err)
}
select {
case <-resultCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("failed to send new data")
}
}
func TestFS_streamFile_Truncate(t *testing.T) {
ci.Parallel(t)
c, cleanup := TestClient(t, nil)
defer cleanup()
// Get a temp alloc dir
ad := tempAllocDir(t)
require.NoError(t, ad.Build())
defer ad.Destroy()
// Create a file in the temp dir
data := []byte("helloworld")
streamFile := "stream_file"
streamFilePath := filepath.Join(ad.AllocDir, streamFile)
f, err := os.Create(streamFilePath)
require.NoError(t, err)
defer f.Close()
// Start the reader
truncateCh := make(chan struct{})
truncateClosed := false
dataPostTruncCh := make(chan struct{})
frames := make(chan *sframer.StreamFrame, 4)
go func() {
var collected []byte
for {
frame := <-frames
if frame.IsHeartbeat() {
continue
}
if frame.FileEvent == truncateEvent && !truncateClosed {
close(truncateCh)
truncateClosed = true
}
collected = append(collected, frame.Data...)
if reflect.DeepEqual(data, collected) {
close(dataPostTruncCh)
return
}
}
}()
// Write a few bytes
if _, err := f.Write(data[:3]); err != nil {
t.Fatalf("write failed: %v", err)
}
framer := sframer.NewStreamFramer(frames, streamHeartbeatRate, streamBatchWindow, streamFrameSize)
framer.Run()
defer framer.Destroy()
// Start streaming
go func() {
if err := c.endpoints.FileSystem.streamFile(
context.Background(), 0, streamFile, 0, ad, framer, nil, false); err != nil {
t.Fatalf("stream() failed: %v", err)
}
}()
// Sleep a little before truncating. This lets us check if the watch
// is working.
time.Sleep(1 * time.Duration(testutil.TestMultiplier()) * time.Second)
if err := f.Truncate(0); err != nil {
t.Fatalf("truncate failed: %v", err)
}
if err := f.Sync(); err != nil {
t.Fatalf("sync failed: %v", err)
}
if err := f.Close(); err != nil {
t.Fatalf("failed to close file: %v", err)
}
f2, err := os.OpenFile(streamFilePath, os.O_RDWR, 0)
if err != nil {
t.Fatalf("failed to reopen file: %v", err)
}
defer f2.Close()
if _, err := f2.Write(data[3:5]); err != nil {
t.Fatalf("write failed: %v", err)
}
select {
case <-truncateCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive truncate")
}
// Sleep a little before writing more. This lets us check if the watch
// is working.
time.Sleep(1 * time.Duration(testutil.TestMultiplier()) * time.Second)
if _, err := f2.Write(data[5:]); err != nil {
t.Fatalf("write failed: %v", err)
}
select {
case <-dataPostTruncCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive post truncate data")
}
}
func TestFS_streamImpl_Delete(t *testing.T) {
ci.Parallel(t)
if runtime.GOOS == "windows" {
t.Skip("Windows does not allow us to delete a file while it is open")
}
c, cleanup := TestClient(t, nil)
defer cleanup()
// Get a temp alloc dir
ad := tempAllocDir(t)
require.NoError(t, ad.Build())
defer ad.Destroy()
// Create a file in the temp dir
data := []byte("helloworld")
streamFile := "stream_file"
streamFilePath := filepath.Join(ad.AllocDir, streamFile)
f, err := os.Create(streamFilePath)
if err != nil {
t.Fatalf("Failed to create file: %v", err)
}
defer f.Close()
// Start the reader
deleteCh := make(chan struct{})
frames := make(chan *sframer.StreamFrame, 4)
go func() {
for {
frame, ok := <-frames
if !ok {
return
}
if frame.IsHeartbeat() {
continue
}
if frame.FileEvent == deleteEvent {
close(deleteCh)
return
}
}
}()
// Write a few bytes
if _, err := f.Write(data[:3]); err != nil {
t.Fatalf("write failed: %v", err)
}
framer := sframer.NewStreamFramer(frames, streamHeartbeatRate, streamBatchWindow, streamFrameSize)
framer.Run()
defer framer.Destroy()
// Start streaming
go func() {
if err := c.endpoints.FileSystem.streamFile(
context.Background(), 0, streamFile, 0, ad, framer, nil, false); err != nil {
t.Fatalf("stream() failed: %v", err)
}
}()
// Sleep a little before deleting. This lets us check if the watch
// is working.
time.Sleep(1 * time.Duration(testutil.TestMultiplier()) * time.Second)
if err := os.Remove(streamFilePath); err != nil {
t.Fatalf("delete failed: %v", err)
}
select {
case <-deleteCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive delete")
}
}
func TestFS_logsImpl_NoFollow(t *testing.T) {
ci.Parallel(t)
c, cleanup := TestClient(t, nil)
defer cleanup()
// Get a temp alloc dir and create the log dir
ad := tempAllocDir(t)
require.NoError(t, ad.Build())
defer ad.Destroy()
logDir := filepath.Join(ad.SharedDir, allocdir.LogDirName)
if err := os.MkdirAll(logDir, 0777); err != nil {
t.Fatalf("Failed to make log dir: %v", err)
}
// Create a series of log files in the temp dir
task := "foo"
logType := "stdout"
expected := []byte("012")
for i := 0; i < 3; i++ {
logFile := fmt.Sprintf("%s.%s.%d", task, logType, i)
logFilePath := filepath.Join(logDir, logFile)
err := os.WriteFile(logFilePath, expected[i:i+1], 0777)
if err != nil {
t.Fatalf("Failed to create file: %v", err)
}
}
// Start the reader
resultCh := make(chan struct{})
frames := make(chan *sframer.StreamFrame, 4)
var received []byte
go func() {
for {
frame, ok := <-frames
if !ok {
return
}
if frame.IsHeartbeat() {
continue
}
received = append(received, frame.Data...)
if reflect.DeepEqual(received, expected) {
close(resultCh)
return
}
}
}()
// Start streaming logs
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
defer cancel()
if err := c.endpoints.FileSystem.logsImpl(
ctx, false, false, 0,
OriginStart, task, logType, ad, frames); err != nil {
t.Fatalf("logsImpl failed: %v", err)
}
select {
case <-resultCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive data: got %q", string(received))
}
}
func TestFS_logsImpl_Follow(t *testing.T) {
ci.Parallel(t)
c, cleanup := TestClient(t, nil)
defer cleanup()
// Get a temp alloc dir and create the log dir
ad := tempAllocDir(t)
require.NoError(t, ad.Build())
defer ad.Destroy()
logDir := filepath.Join(ad.SharedDir, allocdir.LogDirName)
if err := os.MkdirAll(logDir, 0777); err != nil {
t.Fatalf("Failed to make log dir: %v", err)
}
// Create a series of log files in the temp dir
task := "foo"
logType := "stdout"
expected := []byte("012345")
initialWrites := 3
filePath := func(index int) string {
logFile := fmt.Sprintf("%s.%s.%d", task, logType, index)
return filepath.Join(logDir, logFile)
}
writeToFile := func(index int, data []byte) {
logFilePath := filePath(index)
err := os.WriteFile(logFilePath, data, 0777)
if err != nil {
t.Fatalf("Failed to create file: %v", err)
}
}
appendToFile := func(index int, data []byte) {
logFilePath := filePath(index)
f, err := os.OpenFile(logFilePath, os.O_APPEND|os.O_WRONLY, 0600)
if err != nil {
t.Fatalf("Failed to create file: %v", err)
}
defer f.Close()
if _, err = f.Write(data); err != nil {
t.Fatalf("Failed to write file: %v", err)
}
}
for i := 0; i < initialWrites; i++ {
writeToFile(i, expected[i:i+1])
}
// Start the reader
firstResultCh := make(chan struct{})
fullResultCh := make(chan struct{})
frames := make(chan *sframer.StreamFrame, 4)
var received []byte
go func() {
for {
frame, ok := <-frames
if !ok {
return
}
if frame.IsHeartbeat() {
continue
}
received = append(received, frame.Data...)
if reflect.DeepEqual(received, expected[:initialWrites]) {
close(firstResultCh)
} else if reflect.DeepEqual(received, expected) {
close(fullResultCh)
return
}
}
}()
// Start streaming logs
go c.endpoints.FileSystem.logsImpl(
context.Background(), true, false, 0,
OriginStart, task, logType, ad, frames)
select {
case <-firstResultCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive data: got %q", string(received))
}
// We got the first chunk of data, write out the rest splitted
// between the last file and to the next file
// at an index much ahead to check that it is following and detecting
// skips
skipTo := initialWrites + 10
appendToFile(initialWrites-1, expected[initialWrites:initialWrites+1])
writeToFile(skipTo, expected[initialWrites+1:])
select {
case <-fullResultCh:
case <-time.After(10 * time.Duration(testutil.TestMultiplier()) * streamBatchWindow):
t.Fatalf("did not receive data: got %q", string(received))
}
}