Merge pull request #17765 from hashicorp/jbardin/scale-in-multi-var

detect scaled in resources when evaluating *s
This commit is contained in:
James Bardin 2018-04-03 13:12:35 -04:00 committed by GitHub
commit e493407e7e
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3 changed files with 79 additions and 1 deletions

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@ -9541,3 +9541,62 @@ func TestContext2Apply_plannedInterpolatedCount(t *testing.T) {
t.Fatalf("apply failed: %s", err)
}
}
func TestContext2Apply_scaleInMultivarRef(t *testing.T) {
m := testModule(t, "apply-resource-scale-in")
p := testProvider("aws")
p.ApplyFn = testApplyFn
p.DiffFn = testDiffFn
providerResolver := ResourceProviderResolverFixed(
map[string]ResourceProviderFactory{
"aws": testProviderFuncFixed(p),
},
)
s := &State{
Modules: []*ModuleState{
&ModuleState{
Path: rootModulePath,
Resources: map[string]*ResourceState{
"aws_instance.one": {
Type: "aws_instance",
Primary: &InstanceState{
ID: "foo",
},
Provider: "provider.aws",
},
"aws_instance.two": {
Type: "aws_instance",
Primary: &InstanceState{
ID: "foo",
Attributes: map[string]string{
"val": "foo",
},
},
Provider: "provider.aws",
},
},
},
},
}
ctx := testContext2(t, &ContextOpts{
Module: m,
ProviderResolver: providerResolver,
State: s,
Variables: map[string]interface{}{"count": "0"},
})
_, err := ctx.Plan()
if err != nil {
t.Fatalf("plan failed: %s", err)
}
// Applying the plan should now succeed
_, err = ctx.Apply()
if err != nil {
t.Fatalf("apply failed: %s", err)
}
}

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@ -820,7 +820,13 @@ func (i *Interpolater) resourceCountMax(
// use "cr.Count()" but that doesn't work if the count is interpolated
// and we can't guarantee that so we instead depend on the state.
max := -1
for k, _ := range ms.Resources {
for k, s := range ms.Resources {
// This resource may have been just removed, in which case the Primary
// may be nil, or just empty.
if s == nil || s.Primary == nil || len(s.Primary.Attributes) == 0 {
continue
}
// Get the index number for this resource
index := ""
if k == id {

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@ -0,0 +1,13 @@
variable "count" {}
resource "aws_instance" "one" {
count = "${var.count}"
}
locals {
"one_id" = "${element(concat(aws_instance.one.*.id, list("")), 0)}"
}
resource "aws_instance" "two" {
val = "${local.one_id}"
}