"environment" is a very overloaded term, so here we prefer to use the
term "working directory" to talk about a local directory where operations
are executed on a given Terraform configuration.
Each provider plugin will take at least a few seconds to download, so
providing feedback about each one should make users feel less like
Terraform has hung.
Ideally we'd show ongoing progress during the download, but that's not
possible without re-working go-getter, so we'll accept this as an interim
solution for now.
This was added with the idea of using it to override the SHA256 hashes
to match those hypothetically stored in a plan, but we already have a
mechanism elsewhere for populating context fields from plan fields, so
this is not actually necessary.
When running "terraform init" with providers that are unconstrained, we
will now produce information to help the user update configuration to
constrain for the particular providers that were chosen, to prevent
inadvertently drifting onto a newer major release that might contain
breaking changes.
A ~> constraint is used here because pinning to a single specific version
is expected to create dependency hell when using child modules. By using
this constraint mode, which allows minor version upgrades, we avoid the
need for users to constantly adjust version constraints across many
modules, but make major version upgrades still be opt-in.
Any constraint at all in the configuration will prevent the display of
these suggestions, so users are free to use stronger or weaker constraints
if desired, ignoring the recommendation.
Once we've installed the necessary plugins, we'll do one more walk of
the available plugins and record the SHA256 hashes of all of the plugins
we select in the provider lock file.
The file we write here gets read when we're building ContextOpts to
initialize the main terraform context, so any command that works with
the context will then fail if any of the provider binaries change.
By reading our lock file and passing this into the context, we ensure that
only the plugins referenced in the lock file can be used. As of this
commit there is no way to create that lock file, but that will follow soon
as part of "terraform init".
We also provide a way to force a particular set of SHA256s. The main use
for this is to allow us to persist a set of plugins in the plan and
check the same plugins are used during apply, but it may also be useful
for automated tests.
As well as constraining plugins by version number, we also want to be
able to pin plugins to use specific executables so that we can detect
drift in available plugins between commands.
This commit allows such requirements to be specified, but doesn't yet
specify any such requirements, nor validate them.
Previously we encouraged users to import a resource and _then_ write the
configuration block for it. This ordering creates lots of risk, since
for various reasons users can end up subsequently running Terraform
without any configuration in place, which then causes Terraform to want
to destroy the resource that was imported.
Now we invert this and require a minimal configuration block be written
first. This helps ensure that the user ends up with a correlated resource
config and state, protecting against any inconsistency caused by typos.
This addresses #11835.
Previously we deferred validation of the resource address on the import
command until we were in the core guts, which caused the error responses
to be rather unhelpful.
By validating these things early we can give better feedback to the user.
For some reason there was a block of commented-out tests for the refresh
command in the test file for the import command. Here we remove them to
reduce the noise in this file.
Add discovery.GetProviders to fetch plugins from the relases site.
This is an early version, with no tests, that only (probably) fetches
plugins from the default location. The URLs are still subject to change,
and since there are no plugin releases, it doesn't work at all yet.
Instead of providing the a path in BackendOpts, provide a loaded
*config.Config instead. This reduces the number of places where
configuration is loaded.
This new command prints out the tree of modules annotated with their
associated required providers.
The purpose of this command is to help users answer questions such as
"why is this provider required?", "why is Terraform using an older version
of this provider?", and "what combination of modules is creating an
impossible provider version situation?"
For configurations using many modules this sort of question is likely to
come up a lot once we support versioned providers.
As a bonus use-case, this command also shows explicitly when a provider
configuration is being inherited from a parent module, to help users to
understand where the configuration is coming from for each module when
some child modules provide their own provider configurations.
We're going to use config to determine provider dependencies, so we need
to always provide a config when instantiating a context or we'll end up
loading no providers at all.
We previously had a test for running "terraform import -config=''" to
disable the config entirely, but this test is now removed because it makes
no sense. The actual functionality its testing still remains for now,
but it will be removed in a subsequent commit when we start requiring that
a resource to be imported must already exist in configuration.
Rather than providing an already-resolved map of plugins to core, we now
provide a "provider resolver" which knows how to resolve a set of provider
dependencies, to be determined later, and produce that map.
This requires the context to be instantiated in a different way, so this
very noisy diff is a mostly-mechanical update of all of the existing
places where contexts get created for testing, using some adapted versions
of the pre-existing utilities for passing in mock providers.
Previously the set of providers was fixed early on in the command package
processing. In order to be version-aware we need to defer this work until
later, so this interface exists so we can hold on to the possibly-many
versions of plugins we have available and then later, once we've finished
determining the provider dependencies, select the appropriate version of
each provider to produce the final set of providers to use.
This commit establishes the use of this new mechanism, and thus populates
the provider factory map with only the providers that result from the
dependency resolution process.
This disables support for internal provider plugins, though the
mechanisms for building and launching these are still here vestigially,
to be cleaned up in a subsequent commit.
This also adds a new awkward quirk to the "terraform import" workflow
where one can't import a resource from a provider that isn't already
mentioned (implicitly or explicitly) in config. We will do some UX work
in subsequent commits to make this behavior better.
This breaks many tests due to the change in interface, but to keep this
particular diff reasonably easy to read the test fixes are split into
a separate commit.
Currently this doesn't matter much, but we're about to start checking the
availability of providers early on and so we need to use the correct name
for the mock set of providers we use in command tests, which includes
only a provider named "test".
Without this change, the "push" tests will begin failing once we start
verifying this, since there's no "aws" provider available in the test
context.
Having this as a method of PluginMeta felt most natural, but unfortunately
that means that discovery must depend on plugin and plugin in turn
depends on core Terraform, thus making the discovery package hard to use
without creating dependency cycles.
To resolve this, we invert the dependency and make the plugin package be
responsible for instantiating clients given a meta, using a top-level
function.
Previously we did plugin discovery in the main package, but as we move
towards versioned plugins we need more information available in order to
resolve plugins, so we move this responsibility into the command package
itself.
For the moment this is just preserving the existing behavior as long as
there are only internal and unversioned plugins present. This is the
final state for provisioners in 0.10, since we don't want to support
versioned provisioners yet. For providers this is just a checkpoint along
the way, since further work is required to apply version constraints from
configuration and support additional plugin search directories.
The automatic plugin discovery behavior is not desirable for tests because
we want to mock the plugins there, so we add a new backdoor for the tests
to use to skip the plugin discovery and just provide their own mock
implementations. Most of this diff is thus noisy rework of the tests to
use this new mechanism.
Before this, invoking this codepath would print
Terraform has successfully migrated from legacy remote state to your
configured remote state.%!(EXTRA string=s3)
* core/providersplit: Split OPC Provider to separate repo
As we march towards Terraform 0.10.0, we are going to start building the
terraform providers as separate binaries - this will allow us to
continually release them. Before we go to 0.10.0, we need to be able to
continue building providers in the same manner, therefore, we have
hardcoded the path of the provider in the generate-plugins.go file
The interim solution will require us to vendor the opc provider and any
child dependencies, but when we get to 0.10.0, we will no longer have to
do this - the core will auto download the plugin binary. The plugin
package will have it's own dependencies vendored as well.
* core/providersplit: Removing the builtin version of OPC provider
* core/providersplit: Vendoring the OPC plugin
* core/providersplit: update internal plugin list
* core/providersplit: remove unused govendor item
Looking through the operations in node_resource_apply and
node_resource_destroy, there are multiple nil checks for diffApply, so
one we need to continue to assume that the diff can be nil through there
until we ensure that it is non-nill in all cases.
So regardless of how we came to get a nil diff in the UiHook PreApply
method, we need to check it.
Here we add a basic provider with a single resource type.
It's copied heavily from the `github` provider and `github_repository`
resource, as there is some overlap in those types/apis.
~~~
resource "gitlab_project" "test1" {
name = "test1"
visibility_level = "public"
}
~~~
We implement in terms of the
[go-gitlab](https://github.com/xanzy/go-gitlab) library, which provides
a wrapping of the [gitlab api](https://docs.gitlab.com/ee/api/)
We have been a little selective in the properties we surface for the
project resource, as not all properties are very instructive.
Notable is the removal of the `public` bool as the `visibility_level`
will take precedent if both are supplied which leads to confusing
interactions if they disagree.
stringer has changed the boilerplate it generates in a recent version.
We'd previously updated to the new format but accientally rolled back
to the old while merging a long-running feature branch.
This restores us back to the new format again.
The reconfigure flag will force init to ignore any saved backend state.
This is useful when a user does not want any backend migration to
happen, or if the saved configuration can't be loaded at all for some
reason.
This commit adds the ability to provision files locally.
This is useful for cases where TerraForm generates assets
such as TLS certificates or templated documents that need
to be saved locally.
- While output variables can be used to return values to
the user, it is not extremly suitable for large content or
when many of these are generated, nor is it practical for
operators to manually save them on disk.
- While `local-exec` could be used with an `echo`, this
provider works across platforms and do not require any
convoluted escaping.
Martin Atkins