Commit Graph

170 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
Kristin Laemmert 80ab551867
terraform: use addrs.Provider as map keys for provider schemas (#24002)
This is a stepping-stone PR for the provider source project. In this PR
"legcay-stype" FQNs are created from the provider name string. Future
work involves encoding the FQN directly in the AbsProviderConfig and
removing the calls to addrs.NewLegacyProvider().
2020-02-03 08:18:04 -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
Pam Selle 37d16b2f79 Deletions from backend local 2020-01-13 15:30:46 -05:00
Pam Selle bb3d513c4f Some deletions from static analysis 2020-01-13 15:22:34 -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
Kristin Laemmert 9891d0354a
providers: use addrs.Provider as map keys for provider.Factory (#23548)
* terraform/context: use new addrs.Provider as map key in provider factories
* added NewLegacyProviderType and LegacyString funcs to make it explicit that these are temporary placeholders

This PR introduces a new concept, provider fully-qualified name (FQN), encapsulated by the `addrs.Provider` struct.
2019-12-04 11:30:20 -05:00
James Bardin 6caa5d23e2 fix diagnostics handling
Located all non-test paths where a Diagnostic type was assigned to an
error variable.
2019-11-21 09:14:50 -05:00
Martin Atkins 9a62ab3014 command: "terraform show" renders plans like "terraform plan"
During the Terraform 0.12 work we briefly had a partial update of the old
Terraform 0.11 (and prior) diff renderer that could work with the new
plan structure, but could produce only partial results.

We switched to the new plan implementation prior to release, but the
"terraform show" command was left calling into the old partial
implementation, and thus produced incomplete results when rendering a
saved plan.

Here we instead use the plan rendering logic from the "terraform plan"
command, making the output of both identical.

Unfortunately, due to the current backend architecture that logic lives
inside the local backend package, and it contains some business logic
around state and schema wrangling that would make it inappropriate to move
wholesale into the command/format package. To allow for a low-risk fix to
the "terraform show" output, here we avoid some more severe refactoring by
just exporting the rendering functionality in a way that allows the
"terraform show" command to call into it.

In future we'd like to move all of the code that actually writes to the
output into the "command" package so that the roles of these components
are better segregated, but that is too big a change to block fixing this
issue.
2019-11-06 06:53:32 -08:00
Radek Simko 7860f55e4f
Version tools per Go convention under tools.go 2019-10-17 22:23:39 +02:00
Martin Atkins 8664749b59 backend: Allow certain commands to opt out of required variable checks
Terraform Core expects all variables to be set, but for some ancillary
commands it's fine for them to just be set to placeholders because the
variable values themselves are not key to the command's functionality
as long as the terraform.Context is still self-consistent.

For such commands, rather than prompting for interactive input for
required variables we'll just stub them out as unknowns to reflect that
they are placeholders for values that a user would normally need to
provide.

This achieves a similar effect to how these commands behaved before, but
without the tendency to produce a slightly invalid terraform.Context that
would fail in strange ways when asked to run certain operations.
2019-10-10 10:07:01 -07:00
Martin Atkins e21f0fa61e backend/local: Handle interactive prompts for variables in UI layer
During the 0.12 work we intended to move all of the variable value
collection logic into the UI layer (command package and backend packages)
and present them all together as a unified data structure to Terraform
Core. However, we didn't quite succeed because the interactive prompts
for unset required variables were still being handled _after_ calling
into Terraform Core.

Here we complete that earlier work by moving the interactive prompts for
variables out into the UI layer too, thus allowing us to handle final
validation of the variables all together in one place and do so in the UI
layer where we have the most context still available about where all of
these values are coming from.

This allows us to fix a problem where previously disabling input with
-input=false on the command line could cause Terraform Core to receive an
incomplete set of variable values, and fail with a bad error message.

As a consequence of this refactoring, the scope of terraform.Context.Input
is now reduced to only gathering provider configuration arguments. Ideally
that too would move into the UI layer somehow in a future commit, but
that's a problem for another day.
2019-10-10 10:07:01 -07:00
Martin Atkins 7e29b9b5d4 core: Warn when creating and applying with -target
The documentation for the -target option warns that it's intended for
exceptional circumstances only and not for routine use, but that's not a
very prominent location for that warning and so some users miss it.

Here we make the warning more prominent by including it directly in the
Terraform output when -target is in use. We first warn during planning
that the plan might be incomplete, and then warn again after apply
concludes and direct the user to run "terraform plan" to make sure that
there are no further changes outstanding. The latter message is intended
to reinforce that -target should only be a one-off operation and that you
should always run without it soon after to ensure that the workspace is
left in a consistent, converged state.
2019-09-17 14:36:05 -07:00
Pam Selle 9631e4c73d
Merge pull request #20571 from sergkondr/fix_misspelling
fix misspelling
2019-08-13 17:13:13 -04:00
Radek Simko 5b9f2fafc8 Standardise directory name for test data 2019-06-30 10:16:15 +02:00
Martin Atkins b1213f7f6c backend/local: don't panic when an instance has only a deposed object
This unusual situation isn't supposed to arise in normal use, but it can
come up in practice in some edge-case scenarios where Terraform fails in
a severe way during a create_before_destroy.

Some earlier versions of Terraform also had bugs in their handling of
deposed objects, so this may also arise if upgrading from one of those
older versions with some leftover deposed objects in the state.
2019-06-04 09:23:29 -07:00
Radek Simko 8a6d1d62b6
stringer: Regenerate files with latest version 2019-05-13 15:34:27 +01:00
Sander van Harmelen 57f6e01830 backend/local: preserve serial and lineage on failure
When failing to write the state, the local backend writes the state to a local file called `errrored.tfstate`. Previously it would do so by creating a new state file which would use a new serial and lineage. By exorting the existing state file and directly assigning the new state, the serial and lineage are preserved.
2019-03-27 16:15:16 +01:00
Sander van Harmelen 973e2a7cf9 core: add a context to the UIInput interface 2019-03-08 10:24:40 +01:00
Kristin Laemmert b9d8e96e0c
command/plan: plan output should indicate if a resource is being (#20580)
replaced because the instance was tainted.
2019-03-05 16:18:55 -08:00
Sergey Kondrashov 43e7a7b552 fix misspelling 2019-03-05 16:12:52 +03:00
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
James Bardin 6cc3e1d0bd move init error to where it is generated
The init error was output deep in the backend by detecting a
special ResourceProviderError and formatted directly to the CLI.

Create some Diagnostics closer to where the problem is detected, and
passed that back through the normal diagnostic flow. While the output
isn't as nice yet, this restores the helpful error message and makes the
code easier to maintain. Better formatting can be handled later.
2019-02-20 14:18:37 -05:00
Martin Atkins e3618f915b backend/local: Fix mock provider in tests
We've changed the contract for PlanResourceChange to now require the
provider to populate any default values (including unknowns) it wants to
set for computed arguments, so our mock provider here now needs to be a
little more complex to deal with that.

This fixes several of the tests in this package. A minor change to
TestLocal_applyEmptyDirDestroy was required to make it properly configure
the mock provider so PlanResourceChange can access the schema.
2019-02-08 12:48:32 -08:00
Martin Atkins 0c0a437bcb Move module install functionality over to internal/initwd 2019-01-14 11:33:21 -08:00
Radek Simko f64978b64c
backend/local: Render CBD replacement (+/-) correctly (#19642)
* backend/local: Render CBD replacement (+/-) correctly

* command/format: Use IsReplace helper function
2018-12-14 13:45:47 +00:00
Radek Simko 3ab4739ba4
backend/local: Avoid rendering data sources on destroy 2018-12-12 18:21:49 +00:00
Radek Simko e55079abc9
backend/local: Fix incorrect destroy/update count on apply 2018-12-11 18:06:53 +00:00
Kristin Laemmert 67aa944166 backend/local: decode variables with cty.DynamicPseudoType
Variables values are marshalled with an explicit type of
cty.DynamicPseudoType, but were being decoded using `Implied Type` to
try and guess the type. This was causing errors because `Implied Type`
does not expect to find a late-bound value.
2018-11-30 15:15:28 -08:00
Martin Atkins 12572e97bc core: Automatically upgrade resource instance states on read
If an instance object in state has an earlier schema version number then
it is likely that the schema we're holding won't be able to decode the
raw data that is stored. Instead, we must ask the provider to upgrade it
for us first, which might also include translating it from flatmap form
if it was last updated with a Terraform version earlier than v0.12.

This ends up being a "seam" between our use of int64 for schema versions
in the providers package and uint64 everywhere else. We intend to
standardize on int64 everywhere eventually, but for now this remains
consistent with existing usage in each layer to keep the type conversion
noise contained here and avoid mass-updates to other Terraform components
at this time.

This also includes a minor change to the test helpers for the
backend/local package, which were inexplicably setting a SchemaVersion of
1 on the basic test state but setting the mock schema version to zero,
creating an invalid situation where the state would need to be downgraded.
2018-11-30 11:22:39 -08:00
Sander van Harmelen 4c878db8fd
Merge pull request #19464 from hashicorp/svh/f-context
backend/remote: implement the Local interface
2018-11-28 20:16:58 +01:00
Martin Atkins 168d84b3c4 core: Make resource type schema versions visible to callers
Previously we were fetching these from the provider but then immediately
discarding the version numbers because the schema API had nowhere to put
them.

To avoid a late-breaking change to the internal structure of
terraform.ProviderSchema (which is constructed directly all over the
tests) we're retaining the resource type schemas in a new map alongside
the existing one with the same keys, rather than just switching to
using the providers.Schema struct directly there.

The methods that return resource type schemas now return two arguments,
intentionally creating a little API friction here so each new caller can
be reminded to think about whether they need to do something with the
schema version, though it can be ignored by many callers.

Since this was a breaking change to the Schemas API anyway, this also
fixes another API wart where there was a separate method for fetching
managed vs. data resource types and thus every caller ended up having a
switch statement on "mode". Now we just accept mode as an argument and
do the switch statement within the single SchemaForResourceType method.
2018-11-27 15:53:54 -08:00
Sander van Harmelen 35d9ce3f92 backend/remote: implement the Local interface 2018-11-26 20:50:25 +01:00
Sander van Harmelen a17f317025 Change how to fall back from remote to local backend
In order to support free organizations, we need a way to load the `remote` backend and then, depending on the used offering/plan, enable or disable remote operations.

In other words, we should be able to dynamically fall back to the `local` backend if needed, after first configuring the `remote` backend.

To make this works we need to change the way this was done previously when the env var `TF_FORCE_LOCAL_BACKEND` was set. The clear difference of course being that the env var would be available on startup, while the used offering/plan is only known after being able to connect to TFE.
2018-11-20 22:25:52 +01:00
Martin Atkins 27abd9c6b8 command: Fix TestMetaBackend_localDoesNotDeleteLocal
The changes to how we handle setting the state path on the local backend
broke the heuristic we were using here for detecting migration from one
local backend to another with the same state path, which would by default
end up deleting the state altogether after migration.

We now use the StatePaths method to do this, which takes into account
both the default values and any settings that have been set.

Additionally this addresses a flaw in the old method which could
potentially have deleted all non-default workspace state files if the
"path" setting were changed without also changing the "workspace_dir"
setting. This new approach is conservative because it will preserve all
of the files if any one overlaps.
2018-11-19 09:02:35 -08:00
Martin Atkins ec27526cc3 command: Fix TestMetaBackend_configuredChangeCopy_multiToMulti
This was failing because we now handle the settings for the local backend
a little differently as a result of decoding it with the HCL2 machinery.

Specifically, the backend.State* fields are now assumed to be what is
given in configuration, and any CLI overrides are maintained separately
in OverrideState* fields so that they can be imposed "just in time" in
StatePaths.

This is particularly important because OverrideStatePath (when set) is
used regardless of workspace name, while StatePath is a suitable value
only for the "default" workspace, with others needing to be constructed
from StateWorkspaceDir instead.
2018-11-19 09:02:35 -08:00
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
Sander van Harmelen b846c5f653 Make the test compile again
Not sure if these checks still make sense, but without this change the test don’t compile for the related packages.
2018-10-19 15:29:14 +02:00
Sander van Harmelen 48ef7ecfa6 Updates after running `make fmt` with Go v1.11.1 2018-10-17 14:11:08 -07:00
James Bardin 0a0eece15c add backend cli options after configuration
The cli should override the config
2018-10-17 09:41:58 -04:00
Martin Atkins 541952bb8f Revert some work that happened since v0.12-dev branched
This work was done against APIs that were already changed in the branch
before work began, and so it doesn't apply to the v0.12 development work.

To allow v0.12 to merge down to master, we'll revert this work out for now
and then re-introduce equivalent functionality in later commits that works
against the new APIs.
2018-10-16 19:48:28 -07:00
Martin Atkins 98bbd560b5 command: Fix most (but not all) "terraform plan" tests 2018-10-16 19:14:11 -07:00
Martin Atkins 741d334ee4 command: Even more fixes for "apply" command tests 2018-10-16 19:14:11 -07:00
Martin Atkins c5940f2438 backend/local: Increase log verbosity for backend context construction
There are several steps here and a number of them can include reaching out
to remote servers or executing local processes, so it's helpful to have
some trace logs to better narrow down causes of errors and hangs during
this step.
2018-10-16 19:14:11 -07:00
Martin Atkins a6f399517b backend/local: reinstate additional steps in plan file processing
In earlier refactoring we skipped implementing prior state safety checks,
propagating the target addresses from plan, and verifying that all of
the providers are exactly the same from the plan being created.

This change reinstates those checks, including a new error message for
the "stale plan" situation.
2018-10-16 19:14:11 -07:00
Martin Atkins 91d2de6a25 backend/local: Stub out remaining planfile todos with errors
This is just to make sure they show up later when we are working on the
tests, so we can be sure not to forget to address them.
2018-10-16 19:14:11 -07:00
Martin Atkins fa3b4fc9de backend/local: Populate changes into a context built from planfile 2018-10-16 19:14:11 -07:00
Martin Atkins cbc548eb36 command: Do CLI init of backend loaded from plan
If we don't do this, we can't produce any output when applying a saved
plan file.

Here we also introduce a check to the local backend's ReportResult
function so that it won't panic if CLI init is skipped, although that
will no longer happen in the apply-from-file case due to the change
described in the previous paragraph.
2018-10-16 19:14:11 -07:00
Martin Atkins 2b80df0163 backend/local: Require caller to set PlanOutBackend with PlanOutPath
We can't generate a valid plan file without a backend configuration to
write into it, but it's the responsibility of the caller (the command
package) to manage the backend configuration mechanism, so we require it
to tell us what to write here.

This feels a little strange because the backend in principle knows its
own config, but in practice the backend only knows the _processed_ version
of the config, not the raw configuration value that was used to configure
it.
2018-10-16 19:14:11 -07:00