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backend/remote: Support interop from 0.14 to 1.1 

The previous conservative guarantee that we would not make backwards
incompatible changes to the state file format until at least Terraform
1.1 can now be extended. Terraform 0.14 through 1.1 will be able to
interoperably use state files, so we can update the remote backend
version compatibility check accordingly.
This commit is contained in:
Alisdair McDiarmid 2021-09-24 09:26:09 -04:00
parent f1e9d88ddc
commit 57318ef561
2 changed files with 5 additions and 4 deletions
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6
internal/backend/remote/backend.go
View File

@ -917,9 +917,9 @@ func (b *Remote) VerifyWorkspaceTerraformVersion(workspaceName string) tfdiags.D
// are aware of are:
//
// - 0.14.0 is guaranteed to be compatible with versions up to but not
// including 1.1.0
v110 := version.Must(version.NewSemver("1.1.0"))
if tfversion.SemVer.LessThan(v110) && remoteVersion.LessThan(v110) {
// including 1.2.0
v120 := version.Must(version.NewSemver("1.2.0"))
if tfversion.SemVer.LessThan(v120) && remoteVersion.LessThan(v120) {
return diags
}
// - Any new Terraform state version will require at least minor patch

3
internal/backend/remote/backend_test.go
View File

@ -566,7 +566,8 @@ func TestRemote_VerifyWorkspaceTerraformVersion(t *testing.T) {
{"0.14.0", "0.13.5", false, false},
{"0.14.0", "0.14.1", true, false},
{"0.14.0", "1.0.99", true, false},
{"0.14.0", "1.1.0", true, true},
{"0.14.0", "1.1.0", true, false},
{"0.14.0", "1.2.0", true, true},
{"1.2.0", "1.2.99", true, false},
{"1.2.0", "1.3.0", true, true},
{"0.15.0", "latest", true, false},