24 Commits (ccf19fbf5e2b61ba62efd1ac47a3a3fd3917d494)

Author	SHA1	Message	Date
davidair	5cde8b999b	Tiny typo in an error message ... Changing "An module" to "A module" in an error message	6 years ago
Kristin Laemmert	9cb8456f3d	configs: prevent panic with invalid type name (#25562) ... An invalid type name in a resource (or data source) could cause a panic when determining the implied provider for the resource. This commit adds verification that the type name is valid. It does not add a diagnostic, since the invalid type name would have already been caught by the parser. Fixes #25560	6 years ago
Alisdair McDiarmid	dcb8b45e0f	configs: Fix for resources with implied providers ... Previously, resources without explicit provider configuration (i.e. a `provider =` attribute) would be assigned a default provider based upon the resource type. For example, a resource `foo_bar` would be assigned provider `hashicorp/foo`. This behaviour did not work well with community or partner providers, with sources configured in `terraform.required_providers` blocks. With the following configuration: terraform { required_providers { foo = { source = "acme/foo" } } } resource foo_bar "a" { } the resource would be configured with the `hashicorp/foo` provider. This commit fixes this implied provider behaviour. First we look for a provider with local name matching the resource type in the module's required providers map. If one is found, this provider is assigned to the resource. Otherwise, we still fall back to a default provider.	6 years ago
Alisdair McDiarmid	7ca7b1f0fe	configs: Simplify required_providers blocks ... We now permit at most one `required_providers` block per module (except for overrides). This prevents users (and Terraform) from struggling to understand how to merge multiple `required_providers` configurations, with `version` and `source` attributes split across multiple blocks. Because only one `required_providers` block is permitted, there is no need to concatenate version constraints and resolve them. This allows us to simplify the structs used to represent provider requirements, aligning more closely with other structs in this package. This commit also fixes a semantic use-before-initialize bug, where resources defined before a `required_providers` block would be unable to use its source attribute. We achieve this by processing the module's `required_providers` configuration (and overrides) before resources. Overrides for `required_providers` work as before, replacing the entire block per provider.	6 years ago
Martin Atkins	7caf0b9246	addrs: ImpliedProviderForUnqualifiedType function ... This encapsulates the logic for selecting an implied FQN for an unqualified type name, which could either come from a local name used in a module without specifying an explicit source for it or from the prefix of a resource type on a resource that doesn't explicitly set "provider". This replaces the previous behavior of just directly calling NewDefaultProvider everywhere so that we can use a different implication for the local name "terraform", to refer to the built-in terraform provider rather than the stale one that's on registry.terraform.io for compatibility with other Terraform versions.	6 years ago
Kristin Laemmert	e683a6adef	Mildwonkey/terraform tests (targeting integration branch) (#24513) ... * configs: remove `Legacy*` Provider functions, switch to default * terraform context test updates	6 years ago
Kristin Laemmert	ed1aebbeda	terraform: large refactor to use Provider from configs.Resource (#24396) ... * terraform: large refactor to use Provider from configs.Resource configs.Resource.ImpliedProvider() now returns a string; it is the callers' responsibility to turn that into an addrs.Provider if needed. GraphNodeProviderConsumer ProvidedBy() no longer returns nil (reverting to earlier, pre-provider-fqn behavior): it will return either the provider set in config, provider set in state, or the default provider.	6 years ago
Kristin Laemmert	ef19fb6203	configs: attach provider fqn to Resource (#24382) ... * configs: attach provider fqn to Resource	6 years ago
Martin Atkins	946eda3f3c	configs: Return diagnostics (almost) directly from ParseProviderSourceString ... This function can already produce suitable diagnostic messages which we'd like to preserve, but it cannot produce source location information, and so we'll amend the diagnostics to include that on the way out while retaining all of the other values in the diagnostics.	6 years ago
Kristin Laemmert	1c78b26012	terraform: provider source test (#24342) ... * configs: parse provider source string during module merge This was the smallest unit of work needed to start writing provider source tests! * Update configs/parser_test.go Co-Authored-By: Alisdair McDiarmid <alisdair@users.noreply.github.com>	6 years ago
Kristin Laemmert	c7cc0afb80	Mildwonkey/ps schema (#24312) ... * add Config to AttachSchemaTransformer for providerFqn lookup * terraform: refactor ProvidedBy() to return nil when provider is not set in config or state	6 years ago
Paddy	e6592dc710	Add support for provider metadata to modules. (#22583) ... Implement a new provider_meta block in the terraform block of modules, allowing provider-keyed metadata to be communicated from HCL to provider binaries. Bundled in this change for minimal protocol version bumping is the addition of markdown support for attribute descriptions and the ability to indicate when an attribute is deprecated, so this information can be shown in the schema dump. Co-authored-by: Paul Tyng <paul@paultyng.net>	6 years ago
Kristin Laemmert	6e2618d9be	terraform: ProviderTransform gets provider fqn from module ... Added configs.Module.ProviderForLocalProviderConfig which allows terraform.ProviderTransformer to get the provider FQN from the module, instead of assuming NewLegacyProvider.	6 years ago
Kristin Laemmert	851e6dcdbb	configs: added map to configs.Module for provider local name lookup (#24039) ... * configs: added map of ProviderLocalNames to configs.Module We will need to lookup any user-supplied local names for a given FQN. This PR adds a map of ProviderLocalNames to the Module, along with adding tests for this and for decodeRequiredProvidersBlock. This also introduces the appearance of support for a required_provider "source" attribute, but ignores any user-supplied source and instead continues to assume that addrs.NewLegacyProvider is the way to go.	6 years ago
Kristin Laemmert	272cb44d3d	configs: extend module.ProviderRequirements to include the addrs.Provider instead of just version constraints. (#23843) ... Renamed file.ProviderRequirements to file.RequiredProviders to match the name of the block in the configuration. file.RequiredProviders contains the contents of the file(s); module.ProviderRequirements contains the parsed and merged provider requirements. Extended decodeRequiredProvidersBlock to parse the new provider source syntax (version only, it will ignore any other attributes). Added some tests; swapped deep.Equal with cmp.Equal in the terraform/module_dependencies_test.go because deep was not catching incorrect constraints.	6 years ago
Martin Atkins	ff4ea042c2	config: Allow module authors to specify validation rules for variables ... The existing "type" argument allows specifying a type constraint that allows for some basic validation, but often there are more constraints on a variable value than just its type. This new feature (requiring an experiment opt-in for now, while we refine it) allows specifying arbitrary validation rules for any variable which can then cause custom error messages to be returned when a caller provides an inappropriate value. variable "example" { validation { condition = var.example != "nope" error_message = "Example value must not be \"nope\"." } } The core parts of this are designed to do as little new work as possible when no validations are specified, and thus the main new checking codepath here can therefore only run when the experiment is enabled in order to permit having validations.	6 years ago
Martin Atkins	b90fb25321	experiments: a mechanism for opt-in experimental language features ... Traditionally we've preferred to release new language features in major releases only, because we can then use the beta cycle to gather feedback on the feature and learn about any usability challenges or other situations we didn't consider during our design in time to make those changes before inclusion in a stable release. This "experiments" feature is intended to decouple the feedback cycle for new features from the major release rhythm, and thus allow us to release new features in minor releases by first releasing them as experimental for a minor release or two, adjust for any feedback gathered during that period, and then finally remove the experiment gate and enable the feature for everyone. The intended model here is that anything behind an experiment gate is subject to breaking changes even in patch releases, and so any module using these experimental features will be broken by a future Terraform upgrade. The behavior implemented here is: - Recognize a new "experiments" setting in the "terraform" block which allows module authors to explicitly opt in to experimental features. terraform { experiments = [resource_for_each] } - Generate a warning whenever loading a module that has experiments enabled, to avoid accidentally depending on experimental features and thus risking unexpected breakage on next Terraform upgrade. - We check the enabled experiments against the configuration at module load time, which means that experiments are scoped to a particular module. Enabling an experiment in one module does not automatically enable it in any other module. This experiments mechanism is itself an experiment, and so I'd like to use the resource for_each feature to trial it. Because any configuration using experiments is subject to breaking changes, we are free to adjust this experiments feature in future releases as we see fit, but once for_each is shipped without an experiment gate we'll be blocked from making significant changes to it until the next major release at least.	6 years ago
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.	7 years ago
Martin Atkins	5cf791861f	configs: Allow looking up resources by resource addresses. ... Throughout the main "terraform" package we identify resources using the address types, and so this helper is useful to make concise transitions between the address types and the configuration types. As part of this, we use the address types to produce the keys used in our resource maps. This has no visible change in behavior since the prior implementation produced an equal result, but this change ensures that ResourceByAddr cannot be broken by hypothetical future changes to the key serialization.	8 years ago
Martin Atkins	70f1635416	configs: record the source directory for modules ... We can only do this when modules are loaded with Parser.LoadConfigDir, but in practice this is the common case anyway. This is important to support the path.module and path.root expressions in configuration.	8 years ago
Martin Atkins	c07b0a7806	configs: Re-unify the ManagedResource and DataResource types ... Initially the intent here was to tease these apart a little more since they don't really share much behavior in common in core, but in practice it'll take a lot of refactoring to tease apart these assumptions in core right now and so we'll keep these things unified at the configuration layer in the interests of minimizing disruption at the core layer. The two types are still kept in separate maps to help reinforce the fact that they are separate concepts with some behaviors in common, rather than the same concept.	8 years ago
Martin Atkins	4e5efa498a	configs: Parser.LoadConfigDir ... This method wraps LoadConfigFile to load all of the .tf and .tf.json files in a given directory and then bundle them together into a Module object. This function also deals with the distinction between primary and override files, first appending together the primary files in lexicographic order by filename, and then merging in override files in the same order. The merging behavior is not fully implemented as of this commit, and so will be expanded in future commits.	8 years ago
Martin Atkins	e15ec486bf	configs: Parser.LoadConfigFile ... This is a first pass of decoding of the main Terraform configuration file format. It hasn't yet been tested with any real-world configurations, so it will need to be revised further as we test it more thoroughly.	8 years ago
Martin Atkins	13fa73c63e	configs: stub out main configuration structs ... These types represent the individual elements within configuration, the modules a configuration is made of, and the configuration (static module tree) itself.	8 years ago