Commit Graph

620 Commits

Author SHA1 Message Date
Mitchell Hashimoto b6bfc4798d
config: Resource.Count should type check
Fixes #11800

Type check the value of count so we don't panic on the conversion.

I wondered "why didn't we do this before?" There is no excuse for NOT
doing it at all but the reasoning was beacuse prior to the list/map work
in 0.7, the value couldn't be anything other than a string since any
primitive can turn into a string.

Regardless, we should've always done this.
2017-02-10 10:41:41 -08:00
Mitchell Hashimoto cf46e1c3e0
terraform: don't validate computed values in validate
This disables the computed value check for `count` during the validation
pass. This enables partial support for #3888 or #1497: as long as the
value is non-computed during the plan, complex values will work in
counts.

**Notably, this allows data source values to be present in counts!**

The "count" value can be disabled during validation safely because we
can treat it as if any field that uses `count.index` is computed for
validation. We then validate a single instance (as if `count = 1`) just
to make sure all required fields are set.
2017-01-27 21:15:43 -08:00
Mitchell Hashimoto 7b342100d0
config: add "backend" loading to the Terraform section 2017-01-26 14:33:49 -08:00
Mitchell Hashimoto 928fce71f7
config: parse "when" and "on_failure" on provisioners 2017-01-19 18:10:21 -08:00
Jake Champlin 0b73b92830
core: Add pathexpand interpolation function
Adds the `pathexpand` interpolation function to allow users to expand `~` to the home directory in filepath strings.
2017-01-18 16:11:19 -05:00
Mitchell Hashimoto 095b7e7831
config/module: disallow root modules named "root"
Fixes #11038

This is a **short term fix**.

Terraform core doesn't currently handle root modules named "root" well
because the prefix `[]string{"root"}` has special meaning and Terraform
core [currently] can't disambiguate between the root module and a module
named "root" in the root module.

This PR introduces a short term fix by simply disallowing root modules
named "root". This shouldn't break any BC because since 0.8.0 this
didn't work at all in many broken ways (including crashes).

Longer term, this should be fixed by removing the special prefix at all
and having empty paths be root. I started down this path but the core
changes necessary are far too scary for a patch release. We can aim for
0.9.
2017-01-08 15:39:57 -08:00
Mitchell Hashimoto 0c30caec7d
config: smarter provider alias usage validation
Fixes #4789

This improves the validation that valid provider aliases are used.

Previously, we required that provider aliases be defined in every module
they're used. This isn't correct because the alias may be used in a
parent module and inherited.

This removes that validation and creates the validation that a provider
alias must be defined in the used module or _any parent_. This allows
inheritance to work properly.

We've always had this type of validation for aliases because we believe
its a good UX tradeoff: typo-ing an alias is really painful, so we
require declaration of alias usage. It may add a small burden to
declare, but since relatively few aliases are used, it improves the
scenario where a user fat-fingers an alias name.
2016-12-16 16:47:32 -08:00
Mitchell Hashimoto c2c5668a8d
config: Append supports `terraform` 2016-12-13 21:53:02 -08:00
Mitchell Hashimoto 3878b8b093
config: Merge respects Terraform blocks, provider aliases, and more
Fixes #10715

`config.Merge` was not updated to support a number of new features. This
updates the codepath to merge various fields, including the `terraform`
block which was the issue in #10715.

The `Merge` API is called when an `_override` file is present to _merge_
configurations. Normally configurations are _appended_. Only an override
file triggers a _merge_.

I started working on a generic library to do this automatically awhile
back but never finished it. This might motivate me to do so. In the
interest of getting a fix out though, we'll continue the manual
approach.
2016-12-13 21:48:59 -08:00
Mitchell Hashimoto 8a102799c2 Merge pull request #10658 from hashicorp/b-var-keys
config: validate invalid variable keys
2016-12-12 10:53:07 -08:00
Mitchell Hashimoto 3ba9720b3e
config: validate invalid variable keys
Fixes #9416

A simple change to verify that only valid keys for `variable` blocks are
used.
2016-12-10 19:27:01 -05:00
Mitchell Hashimoto 5d684b399c
config: error when loading multiple lifecycle blocks
Fixes #8776

This introduces an error when multiple `lifecycle` blocks exist on a
resource in the configuration.
2016-12-10 18:52:13 -05:00
Mitchell Hashimoto b5f1738e17
config: allow IDs to start with numbers 2016-12-09 12:35:23 -05:00
Mitchell Hashimoto 8b9e2c17cc
config: fix NameRegexp validation to allow single-char names 2016-12-08 23:13:19 -05:00
Mitchell Hashimoto 6b458160b9
config: disallow names starting with ints
Fixes #10597

This disallows any names for variables, modules, etc. starting with
ints. This causes parse errors with the new HIL parser and actually
causes long term ambiguities if we allow this.

I've also updated the upgrade guide to note this as a backwards
compatibility and how people can fix this going forward.
2016-12-08 23:01:51 -05:00
Mitchell Hashimoto 14b371d533
config: validate that RawConfig.Copy doesn't copy the interpolated
values
2016-12-02 13:25:32 -05:00
Mitchell Hashimoto 692eadd763
config: nitpicks from #10475
/cc @grubernaut - we put stdlibs above 3rd party libs separated by a
space
2016-12-01 18:02:39 -05:00
Jake Champlin 1f33952330
Add the timestamp interpolation function.
Adds the timestamp interpolation function, tests, and documentation to allow a user to insert an RFC 3339 formatted UTC timestamp.
2016-12-01 14:51:01 -05:00
Mitchell Hashimoto 3665fea2db
config: validate that data sources don't have provisioners 2016-11-23 08:46:13 -08:00
Mitchell Hashimoto 9cc52d83de
config: test that null characters show up as errors in parse 2016-11-21 18:11:11 -08:00
Martin Atkins 399542a168 core: allow outputs to have descriptions (#9722)
We allow variables to have descriptions specified, as additional context
for a module user as to what should be provided for a given variable.

We previously lacked a similar mechanism for outputs. Since they too are
part of a module's public interface, it makes sense to be able to add
descriptions for these for symmetry's sake.

This change makes a "description" attribute valid within an "output"
configuration block and stores it within the configuration data structure,
but doesn't yet do anything further with it. For now this is useful only
for third-party tools that might parse a module's config to generate
user documentation; later we could expose the descriptions as part of
the "apply" output, but that is left for a separate change.
2016-11-18 19:09:43 +02:00
Mitchell Hashimoto b3f80b9469
config: maintain slice index accounting for computed keys
Fixes #10075
Fixes #10013

When interpolating, we were only maintaining the last known slice index.
If you had sibling slices then you could lose your slice index when
exiting the slice. The resulting behavior was that no some runs the
computed key would be: "slice.0.attr" and on others would be
"slice.attr", the latter being incorrect.

We now maintain a list of slice indexes so that as we unnest, we
properly restore the old value.

Surprisingly unrelated to the graph but the shadow graph caught this
which is great. :)
2016-11-14 18:33:29 -08:00
Mitchell Hashimoto 25d19ef3d0 Merge pull request #10080 from hashicorp/f-tf-version
terraform: support version requirement in configuration
2016-11-14 11:53:30 -08:00
Mitchell Hashimoto df34fa88ce Merge pull request #10076 from hashicorp/f-depend-module
terraform: depends_on can reference entire modules
2016-11-14 11:53:12 -08:00
Mitchell Hashimoto e3a01ccfd8 Merge pull request #10072 from hashicorp/f-output-depends-on
terraform: output nodes can have `depends_on`
2016-11-14 11:52:18 -08:00
Mitchell Hashimoto 15979435d6
config: update error string for new HIL merge 2016-11-13 10:28:31 -08:00
Mitchell Hashimoto 85d3439fa0
config: parse and validate terraform.required_version 2016-11-12 16:22:35 -08:00
Mitchell Hashimoto 576b61a21d
config: validate depends_on with module values 2016-11-12 08:21:27 -08:00
Mitchell Hashimoto 10426ba619
config: parse depends_on for outputs 2016-11-11 17:46:34 -08:00
Mitchell Hashimoto 5107c33119
command/import: load configurations and allow empty config dirs
Fixes #7774

This modifies the `import` command to load configuration files from the
pwd. This also augments the configuration loading section for the CLI to
have a new option (default false, same as old behavior) to
allow directories with no Terraform configurations.
For import, we allow directories with no Terraform configurations so
this option is set to true.
2016-11-09 15:08:22 -08:00
Mitchell Hashimoto a8fbf3420c
config: clean up unused fucntions 2016-11-09 14:28:16 -08:00
Mitchell Hashimoto 2d656b484c
config: test that partial interpolation in a list works properly 2016-11-09 14:28:15 -08:00
Mitchell Hashimoto b979d8927e
config: use ast.TypeUnknown and don't remove computed values 2016-11-09 14:28:15 -08:00
Mitchell Hashimoto 260fb81373 Merge pull request #9795 from hashicorp/b-formatlist-empty
config: formatlist accepts an empty list
2016-11-04 08:47:57 -07:00
Mitchell Hashimoto 29287937e3 Merge pull request #9818 from hashicorp/b-var-parse
config: manually parse variable blocks for better validation
2016-11-04 08:47:40 -07:00
Mitchell Hashimoto ef3148bbfa
config: validate that outputs have a name 2016-11-02 16:56:20 -07:00
Mitchell Hashimoto f054c5ca2c
config: manually parse variable blocks for better validation
Fixes #7846

This changes from using the HCL decoder to manually decoding the
`variable` blocks within the configuration. This gives us a lot more
power to catch validation errors. This PR retains the same tests and
fixes one additional issue (covered by a test) in the case where a
variable has no named assigned.
2016-11-02 14:59:16 -07:00
Mitchell Hashimoto d69b6257df
config: formatlist accepts an empty list
Fixes #7607

An empty list is a valid value for formatlist which means to just return
an empty list as a result. The logic was somewhat convoluted here so I
cleaned that up a bit too. The function overall can definitely be
cleaned up a lot more but I left it mostly as-is to fix the bug.
2016-11-01 22:57:11 -07:00
Raphael Randschau e97785c899 terraform/core: typo in RawConfig documentation (#9714) 2016-10-29 16:18:56 +01:00
Jesse Szwedko 0fbd72a355 Add some basic math interpolation functions
Support the following math functions for interpolation:

* ceil
* floor
* max
* min

Fixes #7409
2016-10-28 17:49:31 +00:00
James Nugent 47bce79b29 core: Add zipmap interpolation function
This commit adds a new interpolation function, zipmap, which produces a
map given a list of string keys and a list of values of the same length
as the list of keys.

The name comes from the same operation in Clojure (and likely other
functional langauges).
2016-10-26 11:28:36 -05:00
Gustavo 5910e3b8af Adds ‘tittle’ built-in function. (#9087)
The tittle function returns a copy of the string with the first characters of all the words capitalized.
2016-10-26 13:21:32 +01:00
Mitchell Hashimoto 694b16de5d
config: ignore_changes cannot have interpolations
This is the limitation of all lifecycle attributes currently. Right now,
interpolations are allowed through and the user ends up thinking it
should work. We should give an error.

In the future it should be possible to support some minimal set of
interpolations (static variables, data sources even perhaps) but for now
let's validate that this doesn't work.
2016-10-24 23:06:33 -07:00
Mitchell Hashimoto fee0351c66
config: RawConfig merge should only set unknown keys non-nil if
non-empty
2016-10-19 15:21:09 -07:00
Mitchell Hashimoto 5cd6898109
config: fix a conflicting test name
A public API TestNewRawConfig was added to easily create a raw config
for testing, but this conflicted with the test. Just rename it.
2016-10-19 13:39:28 -07:00
Mitchell Hashimoto dfa02e4412
terraform: rename attach config to only attach provider config 2016-10-19 13:38:51 -07:00
Mitchell Hashimoto 55ef966b88
config/module: tree.Child on a nil tree works 2016-10-19 13:38:49 -07:00
Mitchell Hashimoto 0fe51b334c Merge pull request #9334 from hashicorp/f-shadow-graph
terraform: Shadow Graph
2016-10-19 13:36:10 -07:00
Mitchell Hashimoto 30596ca371
terraform: sanity test (passes, always passed) 2016-10-11 22:17:31 +08:00
Mitchell Hashimoto 098225dc0d
config/module: use the raw source as part of the key
This changes the key for the storage to be the _raw_ source from the
module, not the fully expanded source. Example: it'll be a relative path
instead of an absolute path.

This allows the ".terraform/modules" directory to be portable when
moving to other machines. This was a behavior that existed in <= 0.7.2
and was broken with #8398. This amends that and adds a test to verify.
2016-09-30 10:44:46 -07:00
Mitchell Hashimoto 37c880c377
Update reflectwalk to fix failing tests
As part of working on ResourceConfig.DeepCopy, Equal I updated
reflectwalk (to fix some issues in the new functions) but this
introduced more issues in other parts of Terraform. This update fixes
those.
2016-09-27 19:16:29 -07:00
James Bardin e2b6ccad8a Failing test for GH-8820 2016-09-15 16:51:12 -04:00
Mitchell Hashimoto 609219fc65 command/meta: validate config immediately
* config: test for validating multi-vars (passes)

* command/plan: test invalid run

* command/meta: validate module on load
2016-09-03 15:26:49 -07:00
James Bardin 94674fe93c Add a test load of a data source with count 2016-09-03 13:08:41 -07:00
James Bardin a3fc7e2e21 remove "count" while loading a data source
Data sources should be able to support counts like a resource. We need
to remove "count" when we load the config because the key doesn't exist
in the schema, and the resource won't validate.
2016-09-03 13:08:41 -07:00
Sander van Harmelen 47dd1ad153 Add wildcard (match all) support to ignore_changes (#8599) 2016-09-02 15:44:35 +02:00
James Bardin 14138fc449 Add test for RawMap
Ensure that RawMap() returns an identical copy, and not a reference to
the original map.
2016-08-31 14:00:59 -04:00
James Bardin 632c16c212 Fix inconsistent results with self interpolation
Due to a race in interpolateForce(), a reference to self could return
inconsistent results.
2016-08-30 14:16:37 -04:00
Mitchell Hashimoto 706b2e2aea Merge pull request #8482 from hashicorp/b-output-dup
config: variable names and outputs must be unique
2016-08-26 13:57:59 -07:00
Mitchell Hashimoto 0fceeaaeb0
config: test for var uniqueness in overrides 2016-08-26 13:48:21 -07:00
Mitchell Hashimoto 4e7f2dd01e Merge pull request #8398 from hashicorp/b-module-collide
config/module: use source as part of key
2016-08-26 13:27:56 -07:00
Mitchell Hashimoto 8a3559560d
config: JSON resource keys with only one item load properly GH-5140
When a resource has only a single key set, the HCL parser treats that
key as part of the overall set of object keys. This isn't valid since
we expect resources to have exactly two keys. In this scenario, we have
to "unwrap" the keys back into a set of objects.
2016-08-25 17:18:18 -07:00
Mitchell Hashimoto fbf06e2a59
config: vars must be unique 2016-08-25 14:51:49 -07:00
Mitchell Hashimoto 099293b690
config: outputs must be unique 2016-08-25 14:43:57 -07:00
Mitchell Hashimoto 92336281a5
config/module: use source as part of key 2016-08-22 14:07:28 -07:00
Mitchell Hashimoto f4faf2274b
config: count can't be a SimpleVariable 2016-08-16 13:48:12 -07:00
James Bardin 81bb6b7264 Merge pull request #7905 from hashicorp/jbardin/merge
core: Add merge interpolation function
2016-08-02 09:45:20 -04:00
James Bardin 39bbbb8da6 Add merge interpolation function
Add a `merge` interpolation function, which merges any number of maps.
Duplicate keys are OK, with the last write winning.
2016-08-01 18:30:58 -04:00
James Bardin 1af7ee87a2 Silence log output when not verbose
Set the default log package output to iotuil.Discard during tests if the
`-v` flag isn't set. If we are verbose, then apply the filter according
to the TF_LOG env variable.
2016-08-01 17:19:14 -04:00
James Bardin c9e1522103 Use HIL to limit concat to ast.TypeList
we can remove some type checks in the concat function
2016-08-01 15:24:18 -04:00
James Bardin c15c0eb0cb Disallow strings as arguments to concat
The concat interpolation function now only accepts list arguments.
Strings are no longer supported, for concatenation or appending to
lists. All arguments must be a list, and single elements can be promoted
with the `list` interpolation function.
2016-08-01 15:06:20 -04:00
James Nugent 796ce7bdd7 build: Opt-in to building rather than opt-out 2016-07-29 18:40:31 -05:00
James Nugent b2d5b66508 Merge pull request #7880 from hashicorp/b-fix-freebsd
build: Fix errors in FreeBSD build
2016-07-29 18:30:55 -05:00
James Nugent 2eb00c9184 build: Fix errors in FreeBSD build
Fixes the following error when cross compiling:

```
--> freebsd/amd64 error: exit status 2
Stderr: # github.com/hashicorp/terraform/config/module
config/module/inode.go:18: cannot use st.Ino (type uint32) as type uint64 in return argument
```
2016-07-29 18:26:22 -05:00
James Bardin 5802f76eaa Make all terraform package tests pass under -race
This isn't a pretty refactor, but fixes the race issues in this package
for now.

Fix race on RawConfig.Config()

fix command package races
2016-07-29 16:12:21 -04:00
Paul Hinze 88030764ff
config: Audit all interpolation functions for list/map behavior
- `distinct()` - error on non-flat lists
 - `element()` - error on non-flat lists
 - `join()` - error on non-flat lists
 - `length()` - support maps
 - `lookup()` - error on non-flat maps
 - `values()` - error on non-flat maps
2016-07-28 09:56:30 -05:00
Paul Hinze 1425b34562
config: Add map() interpolation function
* `map(key, value, ...)` - Returns a map consisting of the key/value pairs
  specified as arguments. Every odd argument must be a string key, and every
  even argument must have the same type as the other values specified.
  Duplicate keys are not allowed. Examples:
  * `map("hello", "world")`
  * `map("us-east", list("a", "b", "c"), "us-west", list("b", "c", "d"))`
2016-07-27 13:03:08 -05:00
James Bardin 8dcbc0b0a0 Add concat to accept lists of lists and maps
This will allow the concat interpolation function to accept lists of
lists, and lists of maps as well as strings. We still allow bare strings
for backwards compatibility, but remove some of the old comment wording
as it could cause confusion of this function with actual string
concatenation.

Since maps are now supported in the config, this removes the superfluous
(and failing) TestInterpolationFuncConcatListOfMaps.
2016-07-19 17:45:50 -04:00
James Bardin 2bd7cfd5fe Expand list interpolation to lists and maps
Allow lists and maps within the list interpolation function via variable
interpolation. Since this requires setting the variadic type to TypeAny,
we check for non-heterogeneous lists in the callback.
2016-07-19 13:44:37 -04:00
James Nugent 58dd41f3b1 core: Add list() interpolation function
The list() interpolation function provides a way to add support for list
literals (of strings) to HIL without having to invent new syntax for it
and modify the HIL parser.

It presents as a function, thus:

    - list() -> []
    - list("a") -> ["a"]
    - list("a", "b") -> ["a", "b"]

Thanks to @wr0ngway for the idea of this approach, fixes #7460.
2016-07-18 18:12:11 -04:00
James Nugent c6e03cba96 core: Fix slice element keys on interpolateWalk
Part of the interpolation walk is to detect keys which involve computed
values and therefore cannot be resolved at this time. The interplation
walker keeps sufficient state to be able to populate the ResourceConfig
with a slice of such keys.

Previously they didn't take slice indexes into account, so in the
following case:

```
"services": []interface{}{
    map[string]interface{}{
        "elb": "___something computed___",
    },
    map[string]interface{}{
        "elb": "___something else computed___",
    },
    map[string]interface{}{
        "elb": "not computed",
    },
}
```

Unknown keys would be populated as follows:

```
services.elb
services.elb
```

This is not sufficient information to be useful, as it is impossible to
distinguish which of the `services.elb`s are unknown vs not.

This commit therefore retains the slice indexes as part of the key for
unknown keys - producing for the example above:

```
services.0.elb
services.1.elb
```
2016-07-08 16:43:42 +01:00
James Bardin e78dc291af Add test to ensure key/values interp order
Test that interpolated values are returned in the order of the sorted
keys.
2016-06-29 15:06:59 -04:00
James Nugent 8284b79957 Merge pull request #7298 from hashicorp/jbardin/GH-7273-fixup
code: Add proper build constraints for GH-7273
2016-06-24 14:33:10 +03:00
James Nugent 8403a465bc core: Add test and fix for element with empty list
The incldued test previously caused a panic, it now returns an error
message explaining the issue.
2016-06-23 21:15:33 +01:00
James Bardin 525485c213 Add proper build constraints for GH-7273
The syscall.Stat_t type doesn't exist on windows, so the inode lookup
needs to be in a file with proper build constraints.
2016-06-23 08:02:32 -04:00
James Bardin 558e023e26 Don't try to copy files over themselves
When copying a config module, make sure the full path for src and dst
files don't match, and also check the inode in case we resolved a
different path to the same file.

Make a note about the unsafe usage of reusing a tempDir path.
2016-06-22 11:25:42 -04:00
James Nugent 9d6c629689 config: Update test to reflect new behaviour
Escaped quotes are no longer supported as HIL syntax (as of the last
update to HIL), so this commit changes the Terraform config-layer test
to verify the non-presence of this behaviour for 0.7.
2016-06-20 19:06:03 +03:00
James Nugent 4b6a632246 core: Rename uniq -> distinct and add docs 2016-06-15 13:25:17 +02:00
Jan Schumann df3e017f6c fix #7106 2016-06-15 13:25:16 +02:00
Paul Hinze 9bc980f569
core: Fix panic on concat() w/ list of nonprimitives
The `concat()` interpolation function does not yet support types other
than strings / lists of strings. Make it an error message instead of a
panic when a list of non-primitives is supplied.

Fixes the panic in #7030
2016-06-12 13:29:06 -05:00
Paul Hinze ffa29090ec
core: Better error for dot indexing on user vars
Dot indexing worked in the "regexps and strings" world of 0.6.x, but it
no longer works on the 0.7 series w/ proper List / Map types.

There is plenty of dot-indexed config out in the wild, so we need to do
what we can to point users to the new syntax.

Here is one place we can do it for user variables (`var.somemap`). We'll
also need to address Resource Variables and Module Variables in a
separate PR.

This fixes the panic in #7103 - a proper error message is now returned.
2016-06-12 10:45:48 -05:00
James Nugent 01cd596c60 core: Fix detection of empty list/map defaults
This commit changes config parsing from weak decoding lists and maps
into []string and map[string]string respectively to decode into
[]interface{} and map[string]interface{} respectively. This is in order
to take advantage of the work integrated in #7082 to defeat the backward
compatibility features of the mapstructure library.

Test coverage of loading empty variables and validating their default
types against expectation.
2016-06-12 11:19:03 +02:00
James Nugent 578ff9569e core: Add sort() interpolation function 2016-06-11 18:03:52 +01:00
James Nugent cb9ef298f3 core: Defeat backward compatibilty in mapstructure
The mapstructure library has a regrettable backward compatibility
concern whereby a WeakDecode of []interface{}{} into a target of
map[string]interface{} yields an empty map rather than an error. One
possibility is to switch to using Decode instead of WeakDecode, but this
loses the nice handling of type conversion, requiring a large volume of
code to be added to Terraform or HIL in order to retain that behaviour.

Instead we add a DecodeHook to our usage of the mapstructure library
which checks for decoding []interface{}{} or []string{} into a map and
returns an error instead.

This has the effect of defeating the code added to retain backwards
compatibility in mapstructure, giving us the correct (for our
circumstances) behaviour of Decode for empty structures and the type
conversion of WeakDecode.

The code is identical to that in the HIL library, and packaged into a
helper.
2016-06-08 18:38:41 +01:00
David Adams b5d1279107 Allow specifying a default value to lookup()
Fixes #4474, where lookup() calls fail out the entire interpolation when
the provided key value is not found in the map. This will allow using
coalesce() along with lookup() to greatly improve module flexibility.
2016-05-25 19:25:15 -05:00
David Glasser 594ea105d8 config: support lists and maps in jsonencode
For now we only support lists and maps whose values are strings, not
deeply nested data.
2016-05-18 10:46:06 -07:00
Martin Atkins 60c24e3319 command: Prevent data resources from being tainted
Since the data resource lifecycle contains no steps to deal with tainted
instances, we must make sure that they never get created.

Doing this out in the command layer is not the best, but this is currently
the only layer that has enough information to make this decision and so
this simple solution was preferred over a more disruptive refactoring,
under the assumption that this taint functionality eventually gets
reworked in terms of StateFilter anyway.
2016-05-14 08:26:37 -07:00
Martin Atkins 718cdda77b config: Parsing of data.TYPE.NAME.FIELD variables
This allows ${data.TYPE.NAME.FIELD} interpolation syntax at the
configuration level, though since there is no special handling of them
in the core package this currently just acts as an alias for
${TYPE.NAME.FIELD}.
2016-05-14 08:26:35 -07:00
Martin Atkins 860140074f config: Data source loading
This allows the config loader to read "data" blocks from the config and
turn them into DataSource objects.

This just reads the data from the config file. It doesn't validate the
data nor do anything useful with it.
2016-05-14 08:26:35 -07:00
Martin Atkins fc4fa10981 config: "ResourceMode" concept for resources
Previously resources were assumed to always support the full set of
create, read, update and delete operations, and Terraform's resource
management lifecycle.

Data sources introduce a new kind of resource that only supports the
"read" operation. To support this, a new "Mode" field is added to
the Resource concept within the config layer, which can be set to
ManagedResourceMode (to indicate the only mode previously possible) or
DataResourceMode (to indicate that only "read" is supported).

To support both managed and data resources in the tests, the
stringification of resources in config_string.go is adjusted slightly
to use the Id() method rather than the unusual type[name] serialization
from before, causing a simple mechanical adjustment to the loader tests'
expected result strings.
2016-05-14 08:26:35 -07:00