Previously we were letting it get implicitly created as part of making
the structure for copying in each file, but that isn't sufficient if the
source directory is empty.
By explicitly creating the directory first we ensure that it will complete
successfully even in the case of an empty directory.
When an error is passed, the FileInfo can be nil, which was previously
causing a crash on trying to evaluate f.IsDir(). By checking for an error
first we avoid this crash.
When TerraForm is used to configure and deploy infrastructure
applications that require dozens templated files, such as Kubernetes, it
becomes extremely burdensome to template them individually: each of them
requires a data source block as well as an upload/export (file
provisioner, AWS S3, ...).
Instead, this commit introduces a mean to template an entire folder of
files (recursively), that can then be treated as a whole by any provider
or provisioner that support directory inputs (such as the
file provisioner, the archive provider, ...).
This does not intend to make TerraForm a full-fledged templating system
as the templating grammar and capabilities are left unchanged. This only
aims at improving the user-experience of the existing templating
provider by significantly reducing the overhead when several files are
to be generated - without forcing the users to rely on external tools
when these templates stay simple and that their generation in TerraForm
is justified.
Fixes: #13588
It was pointed out in #13588 that we don't need to ForceNew on a change
of IPv6 CIDR block. The logic I decided to implement here was to
disassociate then associate. We should only be able to be associated to
1 IPv6 CIDR block at once. This feels like a risky move. We can
disassociate and then error on the associate. This would leave us in a
situation where we have no IPv6 CIDR block associated
The alternative here would be that the failure of association, triggers
a reassociation with the old IPv6 CIDR block
I added a test to make sure that the subnet Ids don't change as the ipv6
block changes. Before removing the ForceNew from the ipv6_cidr_block,
the test results in the following:
```
=== RUN TestAccAWSSubnet_ipv6
--- FAIL: TestAccAWSSubnet_ipv6 (92.09s)
resource_aws_subnet_test.go:105: Expected SubnetIDs not to change, but both got before: subnet-0d2b6a6a and after: subnet-742c6d13
```
After the removal of ForceNew, the test result looks as follows:
```
=== RUN TestAccAWSSubnet_ipv6
--- PASS: TestAccAWSSubnet_ipv6 (188.34s)
```
```
% make testacc TEST=./builtin/providers/aws TESTARGS='-run=TestAccAWSSubnet_'
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/04/24 21:26:36 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAccAWSSubnet_ -timeout 120m
=== RUN TestAccAWSSubnet_importBasic
--- PASS: TestAccAWSSubnet_importBasic (85.63s)
=== RUN TestAccAWSSubnet_basic
--- PASS: TestAccAWSSubnet_basic (80.28s)
=== RUN TestAccAWSSubnet_ipv6
--- PASS: TestAccAWSSubnet_ipv6 (188.34s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 354.283s
```
Many apps deployed to Heroku require that multiple buildpacks be
configured in a particular order to operate correctly.
This updates the builtin Heroku provider's app resource to support
configuring buildpacks and the related documentation in the website.
Similar to config vars, externally set buildpacks will not be altered if
the config is not set.
Fixes: #13829
When IPv6 support was added to subnets, we added a new parameter that
had a default value. This means that users are experiencing unexpected
changes in their configuration
We need a schema migration in place to make sure this isn't the case for
the users who have not upgraded yet
```
==> Checking that code complies with gofmt requirements...
go generate $(go list ./... | grep -v /terraform/vendor/)
2017/04/23 10:36:43 Generated command/internal_plugin_list.go
TF_ACC=1 go test ./builtin/providers/aws -v -run=TestAWSSubnetMigrateState -timeout 120m
=== RUN TestAWSSubnetMigrateState
2017/04/23 10:37:27 [INFO] Found AWS Subnet State v0; migrating to v1
2017/04/23 10:37:27 [DEBUG] Attributes before migration: map[string]string{}
2017/04/23 10:37:27 [DEBUG] Attributes after migration: map[string]string{"assign_ipv6_address_on_creation":"false"}
--- PASS: TestAWSSubnetMigrateState (0.00s)
PASS
ok github.com/hashicorp/terraform/builtin/providers/aws 0.021s
```
