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context_apply2_test.go
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context_apply2_test.go
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package terraform
import (
"bytes"
"errors"
"fmt"
"strings"
"sync"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
"github.com/google/go-cmp/cmp"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/internal/addrs"
"github.com/hashicorp/terraform/internal/configs/configschema"
"github.com/hashicorp/terraform/internal/lang/marks"
"github.com/hashicorp/terraform/internal/plans"
"github.com/hashicorp/terraform/internal/providers"
"github.com/hashicorp/terraform/internal/states"
)
// Test that the PreApply hook is called with the correct deposed key
func TestContext2Apply_createBeforeDestroy_deposedKeyPreApply(t *testing.T) {
m := testModule(t, "apply-cbd-deposed-only")
p := testProvider("aws")
p.PlanResourceChangeFn = testDiffFn
p.ApplyResourceChangeFn = testApplyFn
deposedKey := states.NewDeposedKey()
state := states.NewState()
root := state.EnsureModule(addrs.RootModuleInstance)
root.SetResourceInstanceCurrent(
mustResourceInstanceAddr("aws_instance.bar").Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{"id":"bar"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
root.SetResourceInstanceDeposed(
mustResourceInstanceAddr("aws_instance.bar").Resource,
deposedKey,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectTainted,
AttrsJSON: []byte(`{"id":"foo"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
hook := new(MockHook)
ctx := testContext2(t, &ContextOpts{
Hooks: []Hook{hook},
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("aws"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, DefaultPlanOpts)
if diags.HasErrors() {
t.Fatalf("diags: %s", diags.Err())
} else {
t.Logf(legacyDiffComparisonString(plan.Changes))
}
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatalf("diags: %s", diags.Err())
}
// Verify PreApply was called correctly
if !hook.PreApplyCalled {
t.Fatalf("PreApply hook not called")
}
if addr, wantAddr := hook.PreApplyAddr, mustResourceInstanceAddr("aws_instance.bar"); !addr.Equal(wantAddr) {
t.Errorf("expected addr to be %s, but was %s", wantAddr, addr)
}
if gen := hook.PreApplyGen; gen != deposedKey {
t.Errorf("expected gen to be %q, but was %q", deposedKey, gen)
}
}
func TestContext2Apply_destroyWithDataSourceExpansion(t *testing.T) {
// While managed resources store their destroy-time dependencies, data
// sources do not. This means that if a provider were only included in a
// destroy graph because of data sources, it could have dependencies which
// are not correctly ordered. Here we verify that the provider is not
// included in the destroy operation, and all dependency evaluations
// succeed.
m := testModuleInline(t, map[string]string{
"main.tf": `
module "mod" {
source = "./mod"
}
provider "other" {
foo = module.mod.data
}
# this should not require the provider be present during destroy
data "other_data_source" "a" {
}
`,
"mod/main.tf": `
data "test_data_source" "a" {
count = 1
}
data "test_data_source" "b" {
count = data.test_data_source.a[0].foo == "ok" ? 1 : 0
}
output "data" {
value = data.test_data_source.a[0].foo == "ok" ? data.test_data_source.b[0].foo : "nope"
}
`,
})
testP := testProvider("test")
otherP := testProvider("other")
readData := func(req providers.ReadDataSourceRequest) providers.ReadDataSourceResponse {
return providers.ReadDataSourceResponse{
State: cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("data_source"),
"foo": cty.StringVal("ok"),
}),
}
}
testP.ReadDataSourceFn = readData
otherP.ReadDataSourceFn = readData
ps := map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(testP),
addrs.NewDefaultProvider("other"): testProviderFuncFixed(otherP),
}
otherP.ConfigureProviderFn = func(req providers.ConfigureProviderRequest) (resp providers.ConfigureProviderResponse) {
foo := req.Config.GetAttr("foo")
if foo.IsNull() || foo.AsString() != "ok" {
resp.Diagnostics = resp.Diagnostics.Append(fmt.Errorf("incorrect config val: %#v\n", foo))
}
return resp
}
ctx := testContext2(t, &ContextOpts{
Providers: ps,
})
plan, diags := ctx.Plan(m, states.NewState(), DefaultPlanOpts)
if diags.HasErrors() {
t.Fatal(diags.Err())
}
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.Err())
}
// now destroy the whole thing
ctx = testContext2(t, &ContextOpts{
Providers: ps,
})
plan, diags = ctx.Plan(m, states.NewState(), &PlanOpts{
Mode: plans.DestroyMode,
})
if diags.HasErrors() {
t.Fatal(diags.Err())
}
otherP.ConfigureProviderFn = func(req providers.ConfigureProviderRequest) (resp providers.ConfigureProviderResponse) {
// should not be used to destroy data sources
resp.Diagnostics = resp.Diagnostics.Append(errors.New("provider should not be used"))
return resp
}
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.Err())
}
}
func TestContext2Apply_destroyThenUpdate(t *testing.T) {
m := testModuleInline(t, map[string]string{
"main.tf": `
resource "test_instance" "a" {
value = "udpated"
}
`,
})
p := testProvider("test")
p.PlanResourceChangeFn = testDiffFn
var orderMu sync.Mutex
var order []string
p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) (resp providers.ApplyResourceChangeResponse) {
id := req.PriorState.GetAttr("id").AsString()
if id == "b" {
// slow down the b destroy, since a should wait for it
time.Sleep(100 * time.Millisecond)
}
orderMu.Lock()
order = append(order, id)
orderMu.Unlock()
resp.NewState = req.PlannedState
return resp
}
addrA := mustResourceInstanceAddr(`test_instance.a`)
addrB := mustResourceInstanceAddr(`test_instance.b`)
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(addrA, &states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"a","value":"old","type":"test"}`),
Status: states.ObjectReady,
}, mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`))
// test_instance.b depended on test_instance.a, and therefor should be
// destroyed before any changes to test_instance.a
s.SetResourceInstanceCurrent(addrB, &states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"b"}`),
Status: states.ObjectReady,
Dependencies: []addrs.ConfigResource{addrA.ContainingResource().Config()},
}, mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`))
})
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, DefaultPlanOpts)
assertNoErrors(t, diags)
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.Err())
}
if order[0] != "b" {
t.Fatalf("expected apply order [b, a], got: %v\n", order)
}
}
// verify that dependencies are updated in the state during refresh and apply
func TestApply_updateDependencies(t *testing.T) {
state := states.NewState()
root := state.EnsureModule(addrs.RootModuleInstance)
fooAddr := mustResourceInstanceAddr("aws_instance.foo")
barAddr := mustResourceInstanceAddr("aws_instance.bar")
bazAddr := mustResourceInstanceAddr("aws_instance.baz")
bamAddr := mustResourceInstanceAddr("aws_instance.bam")
binAddr := mustResourceInstanceAddr("aws_instance.bin")
root.SetResourceInstanceCurrent(
fooAddr.Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{"id":"foo"}`),
Dependencies: []addrs.ConfigResource{
bazAddr.ContainingResource().Config(),
},
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
root.SetResourceInstanceCurrent(
binAddr.Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{"id":"bin","type":"aws_instance","unknown":"ok"}`),
Dependencies: []addrs.ConfigResource{
bazAddr.ContainingResource().Config(),
},
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
root.SetResourceInstanceCurrent(
bazAddr.Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{"id":"baz"}`),
Dependencies: []addrs.ConfigResource{
// Existing dependencies should not be removed from orphaned instances
bamAddr.ContainingResource().Config(),
},
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
root.SetResourceInstanceCurrent(
barAddr.Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectReady,
AttrsJSON: []byte(`{"id":"bar","foo":"foo"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/aws"]`),
)
m := testModuleInline(t, map[string]string{
"main.tf": `
resource "aws_instance" "bar" {
foo = aws_instance.foo.id
}
resource "aws_instance" "foo" {
}
resource "aws_instance" "bin" {
}
`,
})
p := testProvider("aws")
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("aws"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, DefaultPlanOpts)
assertNoErrors(t, diags)
bar := plan.PriorState.ResourceInstance(barAddr)
if len(bar.Current.Dependencies) == 0 || !bar.Current.Dependencies[0].Equal(fooAddr.ContainingResource().Config()) {
t.Fatalf("bar should depend on foo after refresh, but got %s", bar.Current.Dependencies)
}
foo := plan.PriorState.ResourceInstance(fooAddr)
if len(foo.Current.Dependencies) == 0 || !foo.Current.Dependencies[0].Equal(bazAddr.ContainingResource().Config()) {
t.Fatalf("foo should depend on baz after refresh because of the update, but got %s", foo.Current.Dependencies)
}
bin := plan.PriorState.ResourceInstance(binAddr)
if len(bin.Current.Dependencies) != 0 {
t.Fatalf("bin should depend on nothing after refresh because there is no change, but got %s", bin.Current.Dependencies)
}
baz := plan.PriorState.ResourceInstance(bazAddr)
if len(baz.Current.Dependencies) == 0 || !baz.Current.Dependencies[0].Equal(bamAddr.ContainingResource().Config()) {
t.Fatalf("baz should depend on bam after refresh, but got %s", baz.Current.Dependencies)
}
state, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.Err())
}
bar = state.ResourceInstance(barAddr)
if len(bar.Current.Dependencies) == 0 || !bar.Current.Dependencies[0].Equal(fooAddr.ContainingResource().Config()) {
t.Fatalf("bar should still depend on foo after apply, but got %s", bar.Current.Dependencies)
}
foo = state.ResourceInstance(fooAddr)
if len(foo.Current.Dependencies) != 0 {
t.Fatalf("foo should have no deps after apply, but got %s", foo.Current.Dependencies)
}
}
func TestContext2Apply_additionalSensitiveFromState(t *testing.T) {
// Ensure we're not trying to double-mark values decoded from state
m := testModuleInline(t, map[string]string{
"main.tf": `
variable "secret" {
sensitive = true
default = ["secret"]
}
resource "test_resource" "a" {
sensitive_attr = var.secret
}
resource "test_resource" "b" {
value = test_resource.a.id
}
`,
})
p := new(MockProvider)
p.GetProviderSchemaResponse = getProviderSchemaResponseFromProviderSchema(&ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_resource": {
Attributes: map[string]*configschema.Attribute{
"id": {
Type: cty.String,
Computed: true,
},
"value": {
Type: cty.String,
Optional: true,
},
"sensitive_attr": {
Type: cty.List(cty.String),
Optional: true,
Sensitive: true,
},
},
},
},
})
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
mustResourceInstanceAddr(`test_resource.a`),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"a","sensitive_attr":["secret"]}`),
AttrSensitivePaths: []cty.PathValueMarks{
{
Path: cty.GetAttrPath("sensitive_attr"),
Marks: cty.NewValueMarks(marks.Sensitive),
},
},
Status: states.ObjectReady,
}, mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`),
)
})
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, SimplePlanOpts(plans.NormalMode, testInputValuesUnset(m.Module.Variables)))
assertNoErrors(t, diags)
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.ErrWithWarnings())
}
}
func TestContext2Apply_sensitiveOutputPassthrough(t *testing.T) {
// Ensure we're not trying to double-mark values decoded from state
m := testModuleInline(t, map[string]string{
"main.tf": `
module "mod" {
source = "./mod"
}
resource "test_object" "a" {
test_string = module.mod.out
}
`,
"mod/main.tf": `
variable "in" {
sensitive = true
default = "foo"
}
output "out" {
value = var.in
}
`,
})
p := simpleMockProvider()
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, states.NewState(), DefaultPlanOpts)
assertNoErrors(t, diags)
state, diags := ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatal(diags.ErrWithWarnings())
}
obj := state.ResourceInstance(mustResourceInstanceAddr("test_object.a"))
if len(obj.Current.AttrSensitivePaths) != 1 {
t.Fatalf("Expected 1 sensitive mark for test_object.a, got %#v\n", obj.Current.AttrSensitivePaths)
}
plan, diags = ctx.Plan(m, state, DefaultPlanOpts)
assertNoErrors(t, diags)
// make sure the same marks are compared in the next plan as well
for _, c := range plan.Changes.Resources {
if c.Action != plans.NoOp {
t.Errorf("Unexpcetd %s change for %s", c.Action, c.Addr)
}
}
}
func TestContext2Apply_ignoreImpureFunctionChanges(t *testing.T) {
// The impure function call should not cause a planned change with
// ignore_changes
m := testModuleInline(t, map[string]string{
"main.tf": `
variable "pw" {
sensitive = true
default = "foo"
}
resource "test_object" "x" {
test_map = {
string = "X${bcrypt(var.pw)}"
}
lifecycle {
ignore_changes = [ test_map["string"] ]
}
}
resource "test_object" "y" {
test_map = {
string = "X${bcrypt(var.pw)}"
}
lifecycle {
ignore_changes = [ test_map ]
}
}
`,
})
p := simpleMockProvider()
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, states.NewState(), SimplePlanOpts(plans.NormalMode, testInputValuesUnset(m.Module.Variables)))
assertNoErrors(t, diags)
state, diags := ctx.Apply(plan, m)
assertNoErrors(t, diags)
// FINAL PLAN:
plan, diags = ctx.Plan(m, state, SimplePlanOpts(plans.NormalMode, testInputValuesUnset(m.Module.Variables)))
assertNoErrors(t, diags)
// make sure the same marks are compared in the next plan as well
for _, c := range plan.Changes.Resources {
if c.Action != plans.NoOp {
t.Logf("marks before: %#v", c.BeforeValMarks)
t.Logf("marks after: %#v", c.AfterValMarks)
t.Errorf("Unexpcetd %s change for %s", c.Action, c.Addr)
}
}
}
func TestContext2Apply_destroyWithDeposed(t *testing.T) {
m := testModuleInline(t, map[string]string{
"main.tf": `
resource "test_object" "x" {
test_string = "ok"
lifecycle {
create_before_destroy = true
}
}`,
})
p := simpleMockProvider()
deposedKey := states.NewDeposedKey()
state := states.NewState()
root := state.EnsureModule(addrs.RootModuleInstance)
root.SetResourceInstanceDeposed(
mustResourceInstanceAddr("test_object.x").Resource,
deposedKey,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectTainted,
AttrsJSON: []byte(`{"test_string":"deposed"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`),
)
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, &PlanOpts{
Mode: plans.DestroyMode,
})
if diags.HasErrors() {
t.Fatalf("plan: %s", diags.Err())
}
_, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatalf("apply: %s", diags.Err())
}
}
func TestContext2Apply_nullableVariables(t *testing.T) {
m := testModule(t, "apply-nullable-variables")
state := states.NewState()
ctx := testContext2(t, &ContextOpts{})
plan, diags := ctx.Plan(m, state, &PlanOpts{})
if diags.HasErrors() {
t.Fatalf("plan: %s", diags.Err())
}
state, diags = ctx.Apply(plan, m)
if diags.HasErrors() {
t.Fatalf("apply: %s", diags.Err())
}
outputs := state.Module(addrs.RootModuleInstance).OutputValues
// we check for null outputs be seeing that they don't exists
if _, ok := outputs["nullable_null_default"]; ok {
t.Error("nullable_null_default: expected no output value")
}
if _, ok := outputs["nullable_non_null_default"]; ok {
t.Error("nullable_non_null_default: expected no output value")
}
if _, ok := outputs["nullable_no_default"]; ok {
t.Error("nullable_no_default: expected no output value")
}
if v := outputs["non_nullable_default"].Value; v.AsString() != "ok" {
t.Fatalf("incorrect 'non_nullable_default' output value: %#v\n", v)
}
if v := outputs["non_nullable_no_default"].Value; v.AsString() != "ok" {
t.Fatalf("incorrect 'non_nullable_no_default' output value: %#v\n", v)
}
}
func TestContext2Apply_targetedDestroyWithMoved(t *testing.T) {
m := testModuleInline(t, map[string]string{
"main.tf": `
module "modb" {
source = "./mod"
for_each = toset(["a", "b"])
}
`,
"./mod/main.tf": `
resource "test_object" "a" {
}
module "sub" {
for_each = toset(["a", "b"])
source = "./sub"
}
moved {
from = module.old
to = module.sub
}
`,
"./mod/sub/main.tf": `
resource "test_object" "s" {
}
`})
p := simpleMockProvider()
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, states.NewState(), DefaultPlanOpts)
assertNoErrors(t, diags)
state, diags := ctx.Apply(plan, m)
assertNoErrors(t, diags)
// destroy only a single instance not included in the moved statements
_, diags = ctx.Plan(m, state, &PlanOpts{
Mode: plans.DestroyMode,
Targets: []addrs.Targetable{mustResourceInstanceAddr(`module.modb["a"].test_object.a`)},
})
assertNoErrors(t, diags)
}
func TestContext2Apply_graphError(t *testing.T) {
m := testModuleInline(t, map[string]string{
"main.tf": `
resource "test_object" "a" {
test_string = "ok"
}
resource "test_object" "b" {
test_string = test_object.a.test_string
}
`,
})
p := simpleMockProvider()
state := states.NewState()
root := state.EnsureModule(addrs.RootModuleInstance)
root.SetResourceInstanceCurrent(
mustResourceInstanceAddr("test_object.a").Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectTainted,
AttrsJSON: []byte(`{"test_string":"ok"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`),
)
root.SetResourceInstanceCurrent(
mustResourceInstanceAddr("test_object.b").Resource,
&states.ResourceInstanceObjectSrc{
Status: states.ObjectTainted,
AttrsJSON: []byte(`{"test_string":"ok"}`),
},
mustProviderConfig(`provider["registry.terraform.io/hashicorp/test"]`),
)
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
plan, diags := ctx.Plan(m, state, &PlanOpts{
Mode: plans.DestroyMode,
})
if diags.HasErrors() {
t.Fatalf("plan: %s", diags.Err())
}
// We're going to corrupt the stored state so that the dependencies will
// cause a cycle when building the apply graph.
testObjA := plan.PriorState.Modules[""].Resources["test_object.a"].Instances[addrs.NoKey].Current
testObjA.Dependencies = append(testObjA.Dependencies, mustResourceInstanceAddr("test_object.b").ContainingResource().Config())
_, diags = ctx.Apply(plan, m)
if !diags.HasErrors() {
t.Fatal("expected cycle error from apply")
}
}
func TestContext2Apply_resourcePostcondition(t *testing.T) {
m := testModuleInline(t, map[string]string{
"main.tf": `
variable "boop" {
type = string
}
resource "test_resource" "a" {
value = var.boop
}
resource "test_resource" "b" {
value = test_resource.a.output
lifecycle {
postcondition {
condition = self.output != ""
error_message = "Output must not be blank."
}
}
}
resource "test_resource" "c" {
value = test_resource.b.output
}
`,
})
p := testProvider("test")
p.GetProviderSchemaResponse = getProviderSchemaResponseFromProviderSchema(&ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_resource": {
Attributes: map[string]*configschema.Attribute{
"value": {
Type: cty.String,
Required: true,
},
"output": {
Type: cty.String,
Computed: true,
},
},
},
},
})
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
m := req.ProposedNewState.AsValueMap()
m["output"] = cty.UnknownVal(cty.String)
resp.PlannedState = cty.ObjectVal(m)
resp.LegacyTypeSystem = true
return resp
}
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
t.Run("condition pass", func(t *testing.T) {
plan, diags := ctx.Plan(m, states.NewState(), &PlanOpts{
Mode: plans.NormalMode,
SetVariables: InputValues{
"boop": &InputValue{
Value: cty.StringVal("boop"),
SourceType: ValueFromCLIArg,
},
},
})
assertNoErrors(t, diags)
if len(plan.Changes.Resources) != 3 {
t.Fatalf("unexpected plan changes: %#v", plan.Changes)
}
p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) (resp providers.ApplyResourceChangeResponse) {
m := req.PlannedState.AsValueMap()
m["output"] = cty.StringVal(fmt.Sprintf("new-%s", m["value"].AsString()))
resp.NewState = cty.ObjectVal(m)
return resp
}
state, diags := ctx.Apply(plan, m)
assertNoErrors(t, diags)
wantResourceAttrs := map[string]struct{ value, output string }{
"a": {"boop", "new-boop"},
"b": {"new-boop", "new-new-boop"},
"c": {"new-new-boop", "new-new-new-boop"},
}
for name, attrs := range wantResourceAttrs {
addr := mustResourceInstanceAddr(fmt.Sprintf("test_resource.%s", name))
r := state.ResourceInstance(addr)
rd, err := r.Current.Decode(cty.Object(map[string]cty.Type{
"value": cty.String,
"output": cty.String,
}))
if err != nil {
t.Fatalf("error decoding test_resource.a: %s", err)
}
want := cty.ObjectVal(map[string]cty.Value{
"value": cty.StringVal(attrs.value),
"output": cty.StringVal(attrs.output),
})
if !cmp.Equal(want, rd.Value, valueComparer) {
t.Errorf("wrong attrs for %s\n%s", addr, cmp.Diff(want, rd.Value, valueComparer))
}
}
})
t.Run("condition fail", func(t *testing.T) {
plan, diags := ctx.Plan(m, states.NewState(), &PlanOpts{
Mode: plans.NormalMode,
SetVariables: InputValues{
"boop": &InputValue{
Value: cty.StringVal("boop"),
SourceType: ValueFromCLIArg,
},
},
})
assertNoErrors(t, diags)
if len(plan.Changes.Resources) != 3 {
t.Fatalf("unexpected plan changes: %#v", plan.Changes)
}
p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) (resp providers.ApplyResourceChangeResponse) {
m := req.PlannedState.AsValueMap()
// For the resource with a constraint, fudge the output to make the
// condition fail.
if value := m["value"].AsString(); value == "new-boop" {
m["output"] = cty.StringVal("")
} else {
m["output"] = cty.StringVal(fmt.Sprintf("new-%s", value))
}
resp.NewState = cty.ObjectVal(m)
return resp
}
state, diags := ctx.Apply(plan, m)
if !diags.HasErrors() {
t.Fatal("succeeded; want errors")
}
if got, want := diags.Err().Error(), "Resource postcondition failed: Output must not be blank."; got != want {
t.Fatalf("wrong error:\ngot: %s\nwant: %q", got, want)
}
// Resources a and b should still be recorded in state
wantResourceAttrs := map[string]struct{ value, output string }{
"a": {"boop", "new-boop"},
"b": {"new-boop", ""},
}
for name, attrs := range wantResourceAttrs {
addr := mustResourceInstanceAddr(fmt.Sprintf("test_resource.%s", name))
r := state.ResourceInstance(addr)
rd, err := r.Current.Decode(cty.Object(map[string]cty.Type{
"value": cty.String,
"output": cty.String,
}))
if err != nil {
t.Fatalf("error decoding test_resource.a: %s", err)
}
want := cty.ObjectVal(map[string]cty.Value{
"value": cty.StringVal(attrs.value),
"output": cty.StringVal(attrs.output),
})
if !cmp.Equal(want, rd.Value, valueComparer) {
t.Errorf("wrong attrs for %s\n%s", addr, cmp.Diff(want, rd.Value, valueComparer))
}
}
// Resource c should not be in state
if state.ResourceInstance(mustResourceInstanceAddr("test_resource.c")) != nil {
t.Error("test_resource.c should not exist in state, but is")
}
})
}
func TestContext2Apply_resourceConditionApplyTimeFail(t *testing.T) {
// This tests the less common situation where a condition fails due to
// a change in a resource other than the one the condition is attached to,
// and the condition result is unknown during planning.
//
// This edge case is a tricky one because it relies on Terraform still
// visiting test_resource.b (in the configuration below) to evaluate
// its conditions even though there aren't any changes directly planned
// for it, so that we can consider whether changes to test_resource.a
// have changed the outcome.
m := testModuleInline(t, map[string]string{
"main.tf": `
variable "input" {
type = string
}
resource "test_resource" "a" {
value = var.input
}
resource "test_resource" "b" {
value = "beep"
lifecycle {
postcondition {
condition = test_resource.a.output == self.output
error_message = "Outputs must match."
}
}
}
`,
})
p := testProvider("test")
p.GetProviderSchemaResponse = getProviderSchemaResponseFromProviderSchema(&ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_resource": {
Attributes: map[string]*configschema.Attribute{
"value": {
Type: cty.String,
Required: true,
},
"output": {
Type: cty.String,
Computed: true,
},
},
},
},
})
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
// Whenever "value" changes, "output" follows it during the apply step,
// but is initially unknown during the plan step.
m := req.ProposedNewState.AsValueMap()
priorVal := cty.NullVal(cty.String)
if !req.PriorState.IsNull() {
priorVal = req.PriorState.GetAttr("value")
}
if m["output"].IsNull() || !priorVal.RawEquals(m["value"]) {
m["output"] = cty.UnknownVal(cty.String)
}
resp.PlannedState = cty.ObjectVal(m)
resp.LegacyTypeSystem = true
return resp
}
p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) (resp providers.ApplyResourceChangeResponse) {
m := req.PlannedState.AsValueMap()
m["output"] = m["value"]
resp.NewState = cty.ObjectVal(m)
return resp
}
ctx := testContext2(t, &ContextOpts{
Providers: map[addrs.Provider]providers.Factory{
addrs.NewDefaultProvider("test"): testProviderFuncFixed(p),
},
})
instA := mustResourceInstanceAddr("test_resource.a")
instB := mustResourceInstanceAddr("test_resource.b")