A "Layer" is a particular service that forms part of the infrastructure for
a set of applications. Some layers are application servers and others are
pure infrastructure, like MySQL servers or load balancers.
Although the AWS API only has one type called "Layer", it actually has
a number of different "soft" types that each have slightly different
validation rules and extra properties that are packed into the Attributes
map.
To make the validation rule differences explicit in Terraform, and to make
the Terraform structure more closely resemble the OpsWorks UI than its
API, we use a separate resource type per layer type, with the common code
factored out into a shared struct type.
"Stack" is the root concept in OpsWorks, and acts as a container for a number
of different "layers" that each provide some service for an application.
A stack isn't very interesting on its own, but it needs to be created before
any layers can be created.
Here we add an OpsWorks client instance to the central client bundle and
establish a new documentation section, both of which will be fleshed out in
subsequent commits that add some OpsWorks resources.
AWS provides three different ways to create AMIs that each have different
inputs, but once they are complete the same management operations apply.
Thus these three resources each have a different "Create" implementation
but then share the same "Read", "Update" and "Delete" implementations.
Common metadata state is now stored
Optimistic locking support added to common_metadata
Revisions to keys in project metadata are now reflected in the project state
Wrote tests for project metadata (all pass)
Relaxed test conditions to work on projects with extra keys
Added documentation for project metadata
* upstream/master:
Update CHANGELOG.md
Update CHANGELOG.md
provider/aws: allow external ENI attachments
Update AWS provider documentation
docs/aws: Fix example of aws_iam_role_policy
provider/aws: S3 bucket test that should fail
provider/aws: Return if Bucket not found
Update CHANGELOG.md
Update CHANGELOG.md
helper/schema: record schema version when destroy fails
settings file is not required
provider/azure: Allow settings_file to accept XML string
add note to aws_iam_policy_attachment explaining its use/limitations
docs: clarify template_file path information
google: Sort resources by alphabet in docs
Support go get in go 1.5
Update CHANGELOG.md
aws_network_interface attachment block is not required
provider/aws: Fix issue in Security Group Rules where the Security Group is not found
With so many AWS provider resources, the docs are getting pretty hard
to navigate. This is particularly true due to the mismatch of some
resources encoding the service name (like aws_route53_record) but some
others ignoring it (like aws_subnet) or using a generic prefix (like
aws_db_instance), which causes an alphabetical ordering to muddle
up all of the services.
Since the AWS UI and docs are themselves oriented around services, most
users should be familiar with the service brands and understand which
resources belong to which service. Thus this categorization follows the
primary categorization used within the AWS Console, preferring EC2-VPC
over EC2-Classic-style bucketing.
Martin Atkins