opentofu/command/apply_test.go
James Bardin cdb80f68a8 Ensure better state normalization
Fix checksum issue with remote state

If we read a state file with "null" objects in a module and they become
initialized to an empty map the state file may be written out with empty
objects rather than "null", changing the checksum. If we can detect
this, increment the serial number to prevent a conflict in atlas.

Our fakeAtlas test server now needs to decode the state directly rather
than using the ReadState function, so as to be able to read the state
unaltered.

The terraform.State data structures have initialization spread out
throughout the package. More thoroughly initialize State during
ReadState, and add a call to init() during WriteState as another
normalization safeguard.

Expose State.init through an exported Init() method, so that a new State
can be completely realized outside of the terraform package.
Additionally, the internal init now completely walks all internal state
structures ensuring that all maps and slices are initialized.  While it
was mentioned before that the `init()` methods are problematic with too
many call sites, expanding this out better exposes the entry points that
will need to be refactored later for improved concurrency handling.

The State structures had a mix of `omitempty` fields. Remove omitempty
for all maps and slices as part of this normalization process. Make
Lineage mandatory, which is now explicitly set in some tests.
2016-08-12 11:09:50 -04:00

1435 lines
29 KiB
Go

package command
import (
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
"os"
"path/filepath"
"reflect"
"strings"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/cli"
)
func TestApply(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_parallelism(t *testing.T) {
provider := testProvider()
statePath := testTempFile(t)
// This blocks all the appy functions. We close it when we exit so
// they end quickly after this test finishes.
block := make(chan struct{})
defer close(block)
var runCount uint64
provider.ApplyFn = func(
i *terraform.InstanceInfo,
s *terraform.InstanceState,
d *terraform.InstanceDiff) (*terraform.InstanceState, error) {
// Increment so we're counting parallelism
atomic.AddUint64(&runCount, 1)
// Block until we're done
<-block
return nil, nil
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(provider),
Ui: ui,
},
}
par := uint64(5)
args := []string{
"-state", statePath,
fmt.Sprintf("-parallelism=%d", par),
testFixturePath("parallelism"),
}
// Run in a goroutine. We still try to catch any errors and
// get them on the error channel.
errCh := make(chan string, 1)
go func() {
if code := c.Run(args); code != 0 {
errCh <- ui.OutputWriter.String()
}
}()
select {
case <-time.After(1000 * time.Millisecond):
case err := <-errCh:
t.Fatalf("err: %s", err)
}
// The total in flight should equal the parallelism
if rc := atomic.LoadUint64(&runCount); rc != par {
t.Fatalf("Expected parallelism: %d, got: %d", par, rc)
}
}
func TestApply_configInvalid(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", testTempFile(t),
testFixturePath("apply-config-invalid"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
}
func TestApply_defaultState(t *testing.T) {
td, err := ioutil.TempDir("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
statePath := filepath.Join(td, DefaultStateFilename)
// Change to the temporary directory
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(filepath.Dir(statePath)); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_error(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
var lock sync.Mutex
errored := false
p.ApplyFn = func(
info *terraform.InstanceInfo,
s *terraform.InstanceState,
d *terraform.InstanceDiff) (*terraform.InstanceState, error) {
lock.Lock()
defer lock.Unlock()
if !errored {
errored = true
return nil, fmt.Errorf("error")
}
return &terraform.InstanceState{ID: "foo"}, nil
}
p.DiffFn = func(
*terraform.InstanceInfo,
*terraform.InstanceState,
*terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
return &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}, nil
}
args := []string{
"-state", statePath,
testFixturePath("apply-error"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
if len(state.RootModule().Resources) == 0 {
t.Fatal("no resources in state")
}
}
func TestApply_init(t *testing.T) {
// Change to the temporary directory
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
dir := tempDir(t)
if err := os.MkdirAll(dir, 0755); err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(dir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
// Create the test fixtures
statePath := testTempFile(t)
ln := testHttpServer(t)
defer ln.Close()
// Initialize the command
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
// Build the URL to the init
var u url.URL
u.Scheme = "http"
u.Host = ln.Addr().String()
u.Path = "/header"
args := []string{
"-state", statePath,
u.String(),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat("hello.tf"); err != nil {
t.Fatalf("err: %s", err)
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_input(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Set some default reader/writers for the inputs
defaultInputReader = bytes.NewBufferString("foo\n")
defaultInputWriter = new(bytes.Buffer)
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("apply-input"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.InputCalled {
t.Fatal("input should be called")
}
}
func TestApply_noArgs(t *testing.T) {
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(testFixturePath("plan")); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_plan(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Set some default reader/writers for the inputs
defaultInputReader = new(bytes.Buffer)
defaultInputWriter = new(bytes.Buffer)
planPath := testPlanFile(t, &terraform.Plan{
Module: testModule(t, "apply"),
})
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if p.InputCalled {
t.Fatalf("input should not be called for plans")
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_plan_remoteState(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
tmp, cwd := testCwd(t)
defer testFixCwd(t, tmp, cwd)
remoteStatePath := filepath.Join(tmp, DefaultDataDir, DefaultStateFilename)
if err := os.MkdirAll(filepath.Dir(remoteStatePath), 0755); err != nil {
t.Fatalf("err: %s", err)
}
// Set some default reader/writers for the inputs
defaultInputReader = new(bytes.Buffer)
defaultInputWriter = new(bytes.Buffer)
// Create a remote state
state := testState()
conf, srv := testRemoteState(t, state, 200)
defer srv.Close()
state.Remote = conf
planPath := testPlanFile(t, &terraform.Plan{
Module: testModule(t, "apply"),
State: state,
})
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if p.InputCalled {
t.Fatalf("input should not be called for plans")
}
// State file should be not be installed
if _, err := os.Stat(filepath.Join(tmp, DefaultStateFilename)); err == nil {
t.Fatalf("State path should not exist")
}
// Check for remote state
if _, err := os.Stat(remoteStatePath); err != nil {
t.Fatalf("missing remote state: %s", err)
}
}
func TestApply_planWithVarFile(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
planPath := testPlanFile(t, &terraform.Plan{
Module: testModule(t, "apply"),
})
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_planVars(t *testing.T) {
planPath := testPlanFile(t, &terraform.Plan{
Module: testModule(t, "apply"),
})
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-var", "foo=bar",
planPath,
}
if code := c.Run(args); code == 0 {
t.Fatal("should've failed")
}
}
func TestApply_refresh(t *testing.T) {
originalState := &terraform.State{
Modules: []*terraform.ModuleState{
&terraform.ModuleState{
Path: []string{"root"},
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
Type: "test_instance",
Primary: &terraform.InstanceState{
ID: "bar",
},
},
},
},
},
}
statePath := testStateFile(t, originalState)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.RefreshCalled {
t.Fatal("should call refresh")
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
// Should have a backup file
f, err = os.Open(statePath + DefaultBackupExtension)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
}
func TestApply_shutdown(t *testing.T) {
stopped := false
stopCh := make(chan struct{})
stopReplyCh := make(chan struct{})
statePath := testTempFile(t)
p := testProvider()
shutdownCh := make(chan struct{})
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
ShutdownCh: shutdownCh,
}
p.DiffFn = func(
*terraform.InstanceInfo,
*terraform.InstanceState,
*terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
return &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}, nil
}
p.ApplyFn = func(
*terraform.InstanceInfo,
*terraform.InstanceState,
*terraform.InstanceDiff) (*terraform.InstanceState, error) {
if !stopped {
stopped = true
close(stopCh)
<-stopReplyCh
}
return &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{
"ami": "2",
},
}, nil
}
go func() {
<-stopCh
shutdownCh <- struct{}{}
// This is really dirty, but we have no other way to assure that
// tf.Stop() has been called. This doesn't assure it either, but
// it makes it much more certain.
time.Sleep(50 * time.Millisecond)
close(stopReplyCh)
}()
args := []string{
"-state", statePath,
testFixturePath("apply-shutdown"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
if len(state.RootModule().Resources) != 1 {
t.Fatalf("bad: %d", len(state.RootModule().Resources))
}
}
func TestApply_state(t *testing.T) {
originalState := &terraform.State{
Modules: []*terraform.ModuleState{
&terraform.ModuleState{
Path: []string{"root"},
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
Type: "test_instance",
Primary: &terraform.InstanceState{
ID: "bar",
},
},
},
},
},
}
statePath := testStateFile(t, originalState)
p := testProvider()
p.DiffReturn = &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
// Run the apply command pointing to our existing state
args := []string{
"-state", statePath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify that the provider was called with the existing state
actual := strings.TrimSpace(p.DiffState.String())
expected := strings.TrimSpace(testApplyStateDiffStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
}
actual = strings.TrimSpace(p.ApplyState.String())
expected = strings.TrimSpace(testApplyStateStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
// Should have a backup file
f, err = os.Open(statePath + DefaultBackupExtension)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
// nil out the ConnInfo since that should not be restored
originalState.RootModule().Resources["test_instance.foo"].Primary.Ephemeral.ConnInfo = nil
actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
}
func TestApply_stateNoExist(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"idontexist.tfstate",
testFixturePath("apply"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
}
func TestApply_sensitiveOutput(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
statePath := testTempFile(t)
args := []string{
"-state", statePath,
testFixturePath("apply-sensitive-output"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
output := ui.OutputWriter.String()
if !strings.Contains(output, "notsensitive = Hello world") {
t.Fatalf("bad: output should contain 'notsensitive' output\n%s", output)
}
if !strings.Contains(output, "sensitive = <sensitive>") {
t.Fatalf("bad: output should contain 'sensitive' output\n%s", output)
}
}
func TestApply_stateFuture(t *testing.T) {
originalState := testState()
originalState.TFVersion = "99.99.99"
statePath := testStateFile(t, originalState)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("apply"),
}
if code := c.Run(args); code == 0 {
t.Fatal("should fail")
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
newState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !newState.Equal(originalState) {
t.Fatalf("bad: %#v", newState)
}
if newState.TFVersion != originalState.TFVersion {
t.Fatalf("bad: %#v", newState)
}
}
func TestApply_statePast(t *testing.T) {
originalState := testState()
originalState.TFVersion = "0.1.0"
statePath := testStateFile(t, originalState)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestApply_vars(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
actual := ""
p.DiffFn = func(
info *terraform.InstanceInfo,
s *terraform.InstanceState,
c *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
if v, ok := c.Config["value"]; ok {
actual = v.(string)
}
return &terraform.InstanceDiff{}, nil
}
args := []string{
"-var", "foo=bar",
"-state", statePath,
testFixturePath("apply-vars"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestApply_varFile(t *testing.T) {
varFilePath := testTempFile(t)
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
actual := ""
p.DiffFn = func(
info *terraform.InstanceInfo,
s *terraform.InstanceState,
c *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
if v, ok := c.Config["value"]; ok {
actual = v.(string)
}
return &terraform.InstanceDiff{}, nil
}
args := []string{
"-var-file", varFilePath,
"-state", statePath,
testFixturePath("apply-vars"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestApply_varFileDefault(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
actual := ""
p.DiffFn = func(
info *terraform.InstanceInfo,
s *terraform.InstanceState,
c *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
if v, ok := c.Config["value"]; ok {
actual = v.(string)
}
return &terraform.InstanceDiff{}, nil
}
args := []string{
"-state", statePath,
testFixturePath("apply-vars"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestApply_varFileDefaultJSON(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars.json")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFileJSON), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
actual := ""
p.DiffFn = func(
info *terraform.InstanceInfo,
s *terraform.InstanceState,
c *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
if v, ok := c.Config["value"]; ok {
actual = v.(string)
}
return &terraform.InstanceDiff{}, nil
}
args := []string{
"-state", statePath,
testFixturePath("apply-vars"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestApply_backup(t *testing.T) {
originalState := &terraform.State{
Modules: []*terraform.ModuleState{
&terraform.ModuleState{
Path: []string{"root"},
Resources: map[string]*terraform.ResourceState{
"test_instance.foo": &terraform.ResourceState{
Type: "test_instance",
Primary: &terraform.InstanceState{
ID: "bar",
},
},
},
},
},
}
originalState.Init()
statePath := testStateFile(t, originalState)
backupPath := testTempFile(t)
p := testProvider()
p.DiffReturn = &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
// Run the apply command pointing to our existing state
args := []string{
"-state", statePath,
"-backup", backupPath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
// Should have a backup file
f, err = os.Open(backupPath)
if err != nil {
t.Fatalf("err: %s", err)
}
backupState, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actual := backupState.RootModule().Resources["test_instance.foo"]
expected := originalState.RootModule().Resources["test_instance.foo"]
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v %#v", actual, expected)
}
}
func TestApply_disableBackup(t *testing.T) {
originalState := testState()
statePath := testStateFile(t, originalState)
p := testProvider()
p.DiffReturn = &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
// Run the apply command pointing to our existing state
args := []string{
"-state", statePath,
"-backup", "-",
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify that the provider was called with the existing state
actual := strings.TrimSpace(p.DiffState.String())
expected := strings.TrimSpace(testApplyDisableBackupStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
}
actual = strings.TrimSpace(p.ApplyState.String())
expected = strings.TrimSpace(testApplyDisableBackupStateStr)
if actual != expected {
t.Fatalf("bad:\n\n%s", actual)
}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
state, err := terraform.ReadState(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
// Ensure there is no backup
_, err = os.Stat(statePath + DefaultBackupExtension)
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
// Ensure there is no literal "-"
_, err = os.Stat("-")
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
}
// -state-out wasn't taking effect when a plan is supplied. GH-7264
func TestApply_stateOutWithPlan(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
tmpDir := testTempDir(t)
defer os.RemoveAll(tmpDir)
statePath := filepath.Join(tmpDir, "state.tfstate")
planPath := filepath.Join(tmpDir, "terraform.tfplan")
args := []string{
"-state", statePath,
"-out", planPath,
testFixturePath("plan"),
}
// Run plan first to get a current plan file
pc := &PlanCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
if code := pc.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// now run apply with the generated plan
stateOutPath := filepath.Join(tmpDir, "state-new.tfstate")
args = []string{
"-state", statePath,
"-state-out", stateOutPath,
planPath,
}
ac := &ApplyCommand{
Meta: Meta{
ContextOpts: testCtxConfig(p),
Ui: ui,
},
}
if code := ac.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// now make sure we wrote out our new state
if _, err := os.Stat(stateOutPath); err != nil {
t.Fatalf("missing new state file: %s", err)
}
}
func testHttpServer(t *testing.T) net.Listener {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("err: %s", err)
}
mux := http.NewServeMux()
mux.HandleFunc("/header", testHttpHandlerHeader)
var server http.Server
server.Handler = mux
go server.Serve(ln)
return ln
}
func testHttpHandlerHeader(w http.ResponseWriter, r *http.Request) {
var url url.URL
url.Scheme = "file"
url.Path = filepath.ToSlash(testFixturePath("init"))
w.Header().Add("X-Terraform-Get", url.String())
w.WriteHeader(200)
}
const applyVarFile = `
foo = "bar"
`
const applyVarFileJSON = `
{ "foo": "bar" }
`
const testApplyDisableBackupStr = `
ID = bar
Tainted = false
`
const testApplyDisableBackupStateStr = `
ID = bar
Tainted = false
`
const testApplyStateStr = `
ID = bar
Tainted = false
`
const testApplyStateDiffStr = `
ID = bar
Tainted = false
`