Commit Graph

24 Commits

Author SHA1 Message Date
Kristin Laemmert 47a16b0937
addrs: embed Provider in AbsProviderConfig instead of Type
a large refactor to addrs.AbsProviderConfig, embedding the addrs.Provider instead of a Type string. I've added and updated tests, added some Legacy functions to support older state formats and shims, and added a normalization step when reading v4 (current) state files (not the added tests under states/statefile/roundtrip which work with both current and legacy-style AbsProviderConfig strings).

The remaining 'fixme' and 'todo' comments are mostly going to be addressed in a subsequent PR and involve looking up a given local provider config's FQN. This is fine for now as we are only working with default assumption.
2020-02-13 15:32:58 -05:00
Martin Atkins 8b511524d6
Initial steps towards AbsProviderConfig/LocalProviderConfig separation (#23978)
* Introduce "Local" terminology for non-absolute provider config addresses

In a future change AbsProviderConfig and LocalProviderConfig are going to
become two entirely distinct types, rather than Abs embedding Local as
written here. This naming change is in preparation for that subsequent
work, which will also include introducing a new "ProviderConfig" type
that is an interface that AbsProviderConfig and LocalProviderConfig both
implement.

This is intended to be largely just a naming change to get started, so
we can deal with all of the messy renaming. However, this did also require
a slight change in modeling where the Resource.DefaultProviderConfig
method has become Resource.DefaultProvider returning a Provider address
directly, because this method doesn't have enough information to construct
a true and accurate LocalProviderConfig -- it would need to refer to the
configuration to know what this module is calling the provider it has
selected.

In order to leave a trail to follow for subsequent work, all of the
changes here are intended to ensure that remaining work will become
obvious via compile-time errors when all of the following changes happen:
- The concept of "legacy" provider addresses is removed from the addrs
  package, including removing addrs.NewLegacyProvider and
  addrs.Provider.LegacyString.
- addrs.AbsProviderConfig stops having addrs.LocalProviderConfig embedded
  in it and has an addrs.Provider and a string alias directly instead.
- The provider-schema-handling parts of Terraform core are updated to
  work with addrs.Provider to identify providers, rather than legacy
  strings.

In particular, there are still several codepaths here making legacy
provider address assumptions (in order to limit the scope of this change)
but I've made sure each one is doing something that relies on at least
one of the above changes not having been made yet.

* addrs: ProviderConfig interface

In a (very) few special situations in the main "terraform" package we need
to make runtime decisions about whether a provider config is absolute
or local.

We currently do that by exploiting the fact that AbsProviderConfig has
LocalProviderConfig nested inside of it and so in the local case we can
just ignore the wrapping AbsProviderConfig and use the embedded value.

In a future change we'll be moving away from that embedding and making
these two types distinct in order to represent that mapping between them
requires consulting a lookup table in the configuration, and so here we
introduce a new interface type ProviderConfig that can represent either
AbsProviderConfig or LocalProviderConfig decided dynamically at runtime.

This also includes the Config.ResolveAbsProviderAddr method that will
eventually be responsible for that local-to-absolute translation, so
that callers with access to the configuration can normalize to an
addrs.AbsProviderConfig given a non-nil addrs.ProviderConfig. That's
currently unused because existing callers are still relying on the
simplistic structural transform, but we'll switch them over in a later
commit.

* rename LocalType to LocalName

Co-authored-by: Kristin Laemmert <mildwonkey@users.noreply.github.com>
2020-01-31 08:23:07 -05:00
Kristin Laemmert 6541775ce4
addrs: roll back change to Type field in ProviderConfig (#23937) 2020-01-28 08:13:30 -05:00
Kristin Laemmert e3416124cc
addrs: replace "Type string" with "Type Provider" in ProviderConfig
* huge change to weave new addrs.Provider into addrs.ProviderConfig
* terraform: do not include an empty string in the returned Providers /
Provisioners
- Fixed a minor bug where results included an extra empty string
2019-12-06 08:00:18 -05:00
Martin Atkins 39e609d5fd vendor: switch to HCL 2.0 in the HCL repository
Previously we were using the experimental HCL 2 repository, but now we'll
shift over to the v2 import path within the main HCL repository as part of
actually releasing HCL 2.0 as stable.

This is a mechanical search/replace to the new import paths. It also
switches to the v2.0.0 release of HCL, which includes some new code that
Terraform didn't previously have but should not change any behavior that
matters for Terraform's purposes.

For the moment the experimental HCL2 repository is still an indirect
dependency via terraform-config-inspect, so it remains in our go.sum and
vendor directories for the moment. Because terraform-config-inspect uses
a much smaller subset of the HCL2 functionality, this does still manage
to prune the vendor directory a little. A subsequent release of
terraform-config-inspect should allow us to completely remove that old
repository in a future commit.
2019-10-02 15:10:21 -07:00
Alex Pilon 4bf43efcfd
move hcl2shim package to configs 2019-08-06 19:58:58 -04:00
James Bardin c814f2da37 Change backend.ValidateConfig to PrepareConfig
This mirrors the change made for providers, so that default values can
be inserted into the config by the backend implementation. This is only
the interface and method name changes, it does not yet add any default
values.
2019-02-25 18:37:20 -05:00
Sander van Harmelen 52a1b22f7a Implement the remote enhanced backend
This is a refactored version of the `remote` backend that was initially added to Terraform v0.11.8 which should now be compatible with v0.12.0.
2018-11-06 16:29:46 +01:00
Martin Atkins 1c007473ba backend: TestBackendConfig to allow nil config body
This is not normally considered valid, but since this is a test helper
we will allow it and just treat it as an empty body.
2018-10-16 19:14:11 -07:00
Martin Atkins a3403f2766 terraform: Ugly huge change to weave in new State and Plan types
Due to how often the state and plan types are referenced throughout
Terraform, there isn't a great way to switch them out gradually. As a
consequence, this huge commit gets us from the old world to a _compilable_
new world, but still has a large number of known test failures due to
key functionality being stubbed out.

The stubs here are for anything that interacts with providers, since we
now need to do the follow-up work to similarly replace the old
terraform.ResourceProvider interface with its replacement in the new
"providers" package. That work, along with work to fix the remaining
failing tests, will follow in subsequent commits.

The aim here was to replace all references to terraform.State and its
downstream types with states.State, terraform.Plan with plans.Plan,
state.State with statemgr.State, and switch to the new implementations of
the state and plan file formats. However, due to the number of times those
types are used, this also ended up affecting numerous other parts of core
such as terraform.Hook, the backend.Backend interface, and most of the CLI
commands.

Just as with 5861dbf3fc49b19587a31816eb06f511ab861bb4 before, I apologize
in advance to the person who inevitably just found this huge commit while
spelunking through the commit history.
2018-10-16 19:11:09 -07:00
Martin Atkins 5782357c28 backend: Update interface and implementations for new config loader
The new config loader requires some steps to happen in a different
order, particularly in regard to knowing the schema in order to
decode the configuration.

Here we lean directly on the configschema package, rather than
on helper/schema.Backend as before, because it's generally
sufficient for our needs here and this prepares us for the
helper/schema package later moving out into its own repository
to seed a "plugin SDK".
2018-10-16 18:39:12 -07:00
Sander van Harmelen 7fb2d1b8de Implement the Enterprise enhanced remote backend 2018-08-03 22:22:55 +02:00
James Bardin 85d6b1d9cc add test for lock error and force-unlock
This adds a general test to verify that a remote state backend returns
the expected error type when it cannot lock a state. It then extracts
the ID reported in the error, and attempts to unlock the state using
that ID, which simulated the force-unlock scenario. This is a separate
test, since not all backends have persistent locks that can be unlocked
later.

We also split out the backend test to be called individually as needed.
2018-02-20 20:32:07 -05:00
James Bardin 2932203492 verify that a state can be read even when locked
This should only happen when a state is loaded via the backend, as well
as a remote state.
2017-12-06 18:33:59 -05:00
tombuildsstuff d074b0da29 Obtaining the current metadata before setting it 2017-09-06 12:41:05 -07:00
Martin Atkins c12d64f340 Use t.Helper() in our test helpers
Go 1.9 adds this new function which, when called, marks the caller as
being a "helper function". Helper function stack frames are then skipped
when trying to find a line of test code to blame for a test failure, so
that the code in the main test function appears in the test failure output
rather than a line within the helper function itself.

This covers many -- but probaly not all -- of our test helpers across
various packages.
2017-08-28 09:59:30 -07:00
James Bardin 193d4b868c backend state tests must honor lineage
Remote state implementations may initialize a lineage when creating a
new named state (i.e. "workspace"). The tests were ignoring that initial
lineage to write a new state to the backend.
2017-07-14 13:50:26 -04:00
James Bardin ebf4413e95 add named named state delete+create-delete test
This ensures that we don't leave any conflicting state artifacts
preventing the recreation of a named state.
2017-06-23 10:16:34 -04:00
James Bardin 49b9a6ad92 test for proper state persistence
The backend state tests weren't properly checking for persistence.
Update the test to persist states and fetch them again from the backend,
checking that lineage is preserved.
2017-03-23 10:06:07 -04:00
Mitchell Hashimoto 1ca0352e5f Merge pull request #12558 from hashicorp/f-backend-testing
backend/local: run backend.TestBackend
2017-03-15 08:45:20 -07:00
Mitchell Hashimoto 1daff7a826
backend/consul: support "lock" option to disable locking
This adds a "lock" config (default true) to allow users to optionally
disable state locking with Consul. This is necessary if the token given
doesn't have session permission and is necessary for backwards
compatibility.
2017-03-14 17:59:10 -07:00
Mitchell Hashimoto f63e8b3398
backend/local: run backend.TestBackend
This verifies that local behaves in an expected way by the backend
package.
2017-03-09 16:17:21 +05:30
Mitchell Hashimoto b842fd0c27
backend/consul: support named states 2017-03-01 22:58:51 -08:00
Mitchell Hashimoto 8a070ddef0
backend: introduce the backend set of interfaces
Backends are a mechanism that allow abstracting the behavior of
Terraform CLI from the actual core. This allows us to slip in special
behavior such as state loading, remote operations, etc.
2017-01-26 14:33:49 -08:00