Commit Graph

114 Commits

Author SHA1 Message Date
James Bardin ee9a618369 don't migrate backend during init without override
If the backend config hashes match during init, and there are no new
backend override options, then we assume the existing config is OK.
Since init should be idempotent, we should be able to run init with no
options or config changes, and not effect the backends at all.
2019-05-24 11:31:04 -04:00
James Bardin cefc927e48 failing test for backend re-init 2019-05-23 18:21:52 -04:00
Martin Atkins 63fa1ac418 vendor: go get github.com/hashicorp/hcl2@master
This includes a small fix to ensure the parser doesn't produce an invalid
body for block parsing syntax errors, and instead produces an incomplete
result that calling applications like Terraform can still analyze.

The problem here was affecting our version-constraint-sniffing code, which
intentionally tried to find a core version constraint even if there's a
syntax error so that it can report that a new version of Terraform is a
likely cause of the syntax error. It was working in most cases, unless
it was the "terraform" block itself that contained the error, because then
we'd try to analyze a broken hcl.Block with a nil body.

This includes a new test for "terraform init" that exercises this
recovery codepath.
2019-05-14 15:37:46 -07:00
Justin Campbell 24e13d8ec1 plugin/discovery: Return tfdiags from Get
Allows us to surface warnings to the user using the tfdiags interfaces.
2019-03-18 12:21:27 -04:00
Radek Simko 37f397dded
command/test: Clarify failure (add full path) 2019-01-29 22:16:41 +00:00
Martin Atkins 86c02d5c35 command: "terraform init" can partially initialize for 0.12upgrade
There are a few constructs from 0.11 and prior that cause 0.12 parsing to
fail altogether, which previously created a chicken/egg problem because
we need to install the providers in order to run "terraform 0.12upgrade"
and thus fix the problem.

This changes "terraform init" to use the new "early configuration" loader
for module and provider installation. This is built on the more permissive
parser in the terraform-config-inspect package, and so it allows us to
read out the top-level blocks from the configuration while accepting
legacy HCL syntax.

In the long run this will let us do version compatibility detection before
attempting a "real" config load, giving us better error messages for any
future syntax additions, but in the short term the key thing is that it
allows us to install the dependencies even if the configuration isn't
fully valid.

Because backend init still requires full configuration, this introduces a
new mode of terraform init where it detects heuristically if it seems like
we need to do a configuration upgrade and does a partial init if so,
before finally directing the user to run "terraform 0.12upgrade" before
running any other commands.

The heuristic here is based on two assumptions:
- If the "early" loader finds no errors but the normal loader does, the
  configuration is likely to be valid for Terraform 0.11 but not 0.12.
- If there's already a version constraint in the configuration that
  excludes Terraform versions prior to v0.12 then the configuration is
  probably _already_ upgraded and so it's just a normal syntax error,
  even if the early loader didn't detect it.

Once the upgrade process is removed in 0.13.0 (users will be required to
go stepwise 0.11 -> 0.12 -> 0.13 to upgrade after that), some of this can
be simplified to remove that special mode, but the idea of doing the
dependency version checks against the liberal parser will remain valuable
to increase our chances of reporting version-based incompatibilities
rather than syntax errors as we add new features in future.
2019-01-14 11:33:21 -08:00
James Bardin 149ccd929e missing commits from 19688 2018-12-18 16:54:09 -08:00
Martin Atkins 8c54da0ad2 command: TestInit_fromModule_explicitDest guard against other tests
Some other test is leaving behind a terraform.tfstate after it concludes,
which can cause this test to fail in a strange way due to picking up
extra provider requirements from that state.

This check doesn't fix that problem, but it at least makes the test fail
in a more helpful way to avoid time wasted trying to debug this test when
it's some other test that actually has the bug.
2018-11-12 15:19:55 -08:00
Martin Atkins 544c2932ce command: Fix TestInit_checkRequiredVersion
In prior refactoring we lost the required core version check from
"terraform init", which we restore here.

Additionally, this test used to have an incorrect name that suggested it
was testing something in the "getProvider" codepath, but version checking
happens regardless of what other options are selected.
2018-11-12 15:19:55 -08:00
Martin Atkins 9ba399bca8 command: Fix TestInit_getProvider
After all of the refactoring we were no longer checking the Terraform
version field in a state file, causing this test to fail.

This restores that check, though with a slightly different error message.
2018-11-12 15:19:55 -08:00
Martin Atkins f6d468ffd5 command: Fix TestInit_inputFalse
This test was using old-style state files as its input, differing only by
lineage. Since lineages are now managed within the state manager itself,
the test can't use that to distinguish the two files and so we put a
different output in each one instead.

This also introduces some TRACE logging to the migration codepaths.
There's some hard-to-follow control flow here and so this extra logging
helps to understand the reason for a particular outcome, and since this
codepath is visited only in "terraform init" anyway it doesn't hurt to
be a bit more verbose here.
2018-11-12 15:19:55 -08:00
Martin Atkins 297b3b8830 command: Fix TestInit_backendReinitConfigToExtra
This test was re-using the same InitCommand value to run multiple times,
which is not realistic. Since we now cache configuration source code
inside command.Meta on load, it's important that we use a fresh
InitCommand instance here so it'll see the modified configuration file
we've left on disk.
2018-11-09 09:48:03 -08:00
Martin Atkins 7b77e20bdc command: Fix several "terraform init" tests 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 ebafa51723 command: Various updates for the new backend package API
This is a rather-messy, complex change to get the "command" package
building again against the new backend API that was updated for
the new configuration loader.

A lot of this is mechanical rewriting to the new API, but
meta_config.go and meta_backend.go in particular saw some major
changes to interface with the new loader APIs and to deal with
the change in order of steps in the backend API.
2018-10-16 18:44:26 -07:00
James Bardin e980156451 cleanup temp files from command tests
Rather than try to modify all the hundreds of calls to the temp helper
functions, and cleanup the temp files at every call site, have all tests
work within a single temp directory that is removed at the end of
TestMain.
2018-03-28 13:08:38 -04:00
James Bardin 61c2be3e95
Merge pull request #16969 from hashicorp/jbardin/reset-plugin-dir
allow init to reset -plugin-dir
2018-01-08 16:51:47 -05:00
James Bardin 504ea578ee
Merge pull request #16920 from hashicorp/jbardin/init-future-state
check state version during init
2018-01-05 16:54:41 -05:00
James Bardin 5a975d9997 add test for internal plugins with -plugin-dir
-plugin-dir was short-circuiting the discovery for internal plugins
2018-01-05 11:51:09 -05:00
James Bardin ba84faf4e1 remove the plugin path only for an empty string
To avoid breaking automation where plugin-path was assumed to be set
permanently, only remove the plugin-path record if it was explicitly set
to and empty string.
2018-01-04 16:49:45 -05:00
James Bardin 79e985366f allow init to reset -plugin-dir
Remove the recorded -plugin-dir during init if the flag is not provided.
2017-12-21 11:21:07 -05:00
James Bardin 7d2da9865e inputFalse test should attempt migration and check error
Make sure the init inputFalse test actually errors from missing input,
since skipping input will still fail later during provider
initialization. We need to make sure there are two different states that
aren't a noop for migration, and reset the command struct for each run.

Also verify that we don't go into an infinite loop if there is no input.
2017-12-18 18:39:21 -05:00
James Bardin ea4cb6a20e check state version during init
The init command needs to parse the state to resolve providers, but
changes to the state format can cause that to fail with difficult to
understand errors. Check the terraform version during init and provide
the same error that would be returned by plan or apply.
2017-12-15 11:17:59 -05:00
James Bardin 1bf64ec788 add "Updating" output and fix output tests 2017-11-03 10:28:08 -04:00
Sunny 2d849f8650 command/init: check required_version
Previously we were checking required_version only during "real" operations, and not during initialization. Catching it during init is better because that's the first command users run on a new working directory.
2017-08-28 11:25:16 -07:00
James Bardin fa20d43d80 test loading of Meta.PluginOverrides
These are currently being skipped in discovery
2017-08-09 11:13:54 -04:00
Martin Atkins 8a7a0a7459 command: terraform init -from-module=...
This restores the earlier behavior of the first positional argument to
terraform init in 0.9, but as a command line option.

The positional argument was removed to improve consistency with other
commands that take a working directory as their first positional argument.
It was originally intended that this functionality would return in a
later release along with some other general improvements to Terraform's
module handling, but we're introducing here an interim solution that
uses the existing module source concept, to allow for easier porting of
workflows that previously depended on the automatic copy behavior.

In a future release this feature may change again as the module
improvements design firms up, but we expect it to be broadly compatible
with this temporary state.
2017-07-28 15:23:29 -07:00
Martin Atkins 40e2fbb8e9 command: init to allow plugin init without backend init
Previously init would crash if given these options:
    -backend=false -get-plugins=true

This is because the state is used as a source of provider dependency
information, and we need to instantiate the backend to get the state.

To avoid the crash, we now use the following adjusted behavior:

- if -backend=true, we behave as before

- if -backend=false, we instead try to instantiate the backend the same
  way any other command would, without modifying its configuration

- if we're able to instantiate the backend, we use it to fetch state
  for dependency resolution purposes

- if the backend is not instantiable then we assume it's not yet
  configured and proceed with a nil state, which may cause us to see an
  incomplete picture of the dependencies but still allows the install
  to succeed. Subsequently running "terraform plan" will not work until
  the backend is (re-)initialized, so the incomplete picture of required
  plugins is safe.
2017-06-21 11:43:28 -07:00
Martin Atkins 9c2fe3456b command: purge unused plugins as a side effect of plugin installation
Previously we only did this when _upgrading_, but that's unnecessarily
specific and confusing since e.g. plugins can get upgraded implicitly by
constraint changes, which would not then trigger the purge process.

Instead, we'll assume that the user is able to easily re-download plugins
that were purged here, or if they need more specific guarantees they will
manage manually a plugin directory and disable the auto-install behavior
using `-plugin-dir`.
2017-06-20 13:40:03 -07:00
James Bardin 270eedd4b8 always pass in the full plugin path to dicovery
Discovery no longer tries to walk into OS_ARCH dirs, so always pass in
the full search path.
2017-06-16 14:09:47 -04:00
James Bardin be2069ac81 add -plugin-dir option
The -plugin-dir option lets the user specify custom search paths for
plugins. This overrides all other plugin search paths, and prevents the
auto-installation of plugins.

We also make sure that the availability of plugins is always checked
during init, even if -get-plugins=false or -plugin-dir is set.
2017-06-15 15:23:16 -04:00
James Bardin f723270e3e search the vendor directory for plugins
The default location for users to manually add plugins will be
./terraform.d/plugins/
2017-06-15 10:12:00 -04:00
James Bardin 4f5e92e4c0 reverse init test to check for dataDir in PWD
init should always write intternal data to the current directory, even
when a path is provided. The inherited behavior no longer applies to the
new use of init.
2017-06-14 15:22:30 -04:00
Martin Atkins 6979a07754 command: init -upgrade for provider plugins
Now when -upgrade is provided to "terraform init" (and plugin installation
isn't disabled) it will:

- ignore the contents of the auto-install plugin directory when deciding
  what is "available", thus causing anything there to be reinstalled,
  possibly at a newer version.
- if installation completes successfully, purge from the auto-install
  plugin directory any plugin-looking files that aren't in the set of
  chosen plugins.

As before, plugins outside of the auto-install directory are able to
take precedence over the auto-install ones, and these will never be
upgraded nor purged.

The thinking here is that the auto-install directory is an implementation
detail directly managed by Terraform, and so it's Terraform's
responsibility to automatically keep it clean as plugins are upgraded.

We don't yet have the -plugin-dir option implemented, but once it is it
should circumvent all of this behavior and just expect providers to be
already available in the given directory, meaning that nothing will be
auto-installed, -upgraded or -purged.
2017-06-13 12:28:07 -07:00
Martin Atkins f753974bb3 plugin/discovery: Installer interface, and provider implementation
Previously we had a "getProvider" function type used to implement plugin
fetching. Here we replace that with an interface type, initially with
just a "Get" function.

For now this just simplifies the interface by allowing the target
directory and protocol version to be members of the struct rather than
passed as arguments.

A later change will extend this interface to also include a method to
purge unused plugins, so that upgrading frequently doesn't leave behind
a trail of unused executable files.
2017-06-13 12:28:07 -07:00
Gavin Williams 5834333ea3 command: terraform get -upgrade
As of this commit this just upgrades modules, but this option will also
later upgrade plugins and indeed anything else that's being downloaded and
installed as part of the init.
2017-06-13 12:28:07 -07:00
James Bardin 2bfcdbbd08 change init args to remove source copy
When init was modified in 0.9 to initialize a terraform working
directory, the legacy behavior was kept to copy or fetch module sources.
This left the init command without the ability that the plan and apply
commands have to target a specific directory for the operation.

This commit removes the legacy behavior altogether, and allows init to
target a directory for initialization, bringing it into parity with plan
and apply. If one want to copy a module to the target or current
directory, that will have to be done manually before calling init. We
can later reintroduce fetching modules with init without breaking this
new behavior, by adding the source as an optional second argument.

The unit tests testing the copying of sources with init have been
removed, as well as some out of date (and commented out) init tests
regarding remote states.
2017-06-09 17:50:14 -04:00
James Bardin d1c50efb01 change providers.json to lock.json
It might not just be for providers, and it's in the plugins dir, so
lock.json seems descriptive enough.
2017-06-09 14:03:59 -07:00
James Bardin fdbfc17fae missing constraints passed erroniously
ConstrainVersions was documented as returning nil, but it was instead
returning an empty set. Use the Count() method to check for nil or
empty. Add test to verify failed constraints will show up as missing.
2017-06-09 14:03:59 -07:00
Martin Atkins 032f71f1ff command: produce provider lock file during "terraform init"
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.
2017-06-09 14:03:59 -07:00
James Bardin 2994c6ac5d add init getPlugin test
add a mock plugin getter, and test that we can fetch requested version
of the plugins.
2017-06-09 14:03:59 -07:00
Martin Atkins 8364383c35 Push plugin discovery down into command package
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.
2017-06-09 14:03:59 -07:00
James Bardin 50023e9a60 honor `input=false` in state migration
return an error when confirming a copy if -input=false
2017-03-29 18:11:45 -04:00
James Bardin c891ab50b7 detect when backend.Hash needs update
It's possible to not change the backend config, but require updating the
stored backend state by moving init options from the config file to the
`-backend-config` flag. If the config is the same, but the hash doesn't
match, update the stored state.
2017-03-29 16:03:51 -04:00
James Bardin ff2d753062 add Rehash to terraform.BackendState
This method mirrors that of config.Backend, so we can compare the
configration of a backend read from a config vs that of a backend read
from a state. This will prevent init from reinitializing when using
`-backend-config` options that match the existing state.
2017-03-29 15:53:42 -04:00
James Bardin 54e536cfe0 add `-force-copy` option to init command
The `-force-copy` option will suppress confirmation for copying state
data.

Modify some tests to use the option, making sure to leave coverage of
the Input code path.
2017-03-22 08:47:26 -04:00
Mitchell Hashimoto c87f3dfdd5
command/init: add test for -backend-config k/v 2017-03-17 10:22:48 -07:00
Mitchell Hashimoto 81639480fb
command: recompute config hash with ConfigFile set
Fixes #12749

If we merge in an extra partial config we need to recompute the hash to
compare with the old value to detect that change.

This hash needs to NOT be stored and just used as a temporary. We want
to keep the original hash in the state so that we don't detect a change
from the config (since the config will always be partial).
2017-03-16 11:47:59 -07:00
Mitchell Hashimoto 716132431a
command/init: initialize backend even if not set in the config
We need to initialize the backend even if the config has no backend set.
This allows `init` to work when unsetting a previously set backend.
Without this, there was no way to unset a backend.
2017-02-15 15:44:53 -08:00
Mitchell Hashimoto ad7b063262
command: convert to use backends 2017-01-26 14:33:49 -08:00
Justin Nauman 61240b4250 Fixes #5011 - Backend downcased for init 2016-02-05 06:26:12 -06:00
Mitchell Hashimoto 6a972a7713 command/init: put remote state config at proper path [GH-2927] 2016-01-19 17:13:19 -08:00
Mitchell Hashimoto 0299e60e83 command/init: -backend-config 2015-02-23 15:13:56 -08:00
Mitchell Hashimoto b8a66cb6ca command: remove more remote package 2015-02-23 15:13:55 -08:00
Mitchell Hashimoto 622690583c command/init: remove dependency on remote package 2015-02-23 15:13:55 -08:00
Armon Dadgar 6a84be0686 command: updating for pluggable backends 2014-12-10 13:27:10 -08:00
Armon Dadgar 09d7fb7c27 command: cleanup test function names 2014-12-10 13:27:08 -08:00
Armon Dadgar 38002904f4 command/push: Adding the push command 2014-12-10 13:27:08 -08:00
Armon Dadgar 722a885113 command/init: Testing remote flags 2014-12-10 13:27:07 -08:00
Emil Hessman 31dd7d8391 command/init: use a more semantic name to identiy the test routine for issue 518 2014-11-20 19:17:04 +01:00
Emil Hessman 82e4bab178 command/init: test for issue 518 2014-11-04 21:19:39 +01:00
Mitchell Hashimoto e041a52dab command: test init 2014-09-27 09:23:02 -07:00
Mitchell Hashimoto f4cc2c066f command: init works at a basic level 2014-09-26 16:30:49 -07:00
Mitchell Hashimoto 615192a6c4 command: init command start 2014-09-26 16:04:10 -07:00