Require minimum Terraform and plugin versions

* Bump minimum Terraform version to v0.10.4
* Allow minor version updates for 1.0+ plugins
* Fix versions for plugins which are pre-1.0

aws/container-linux/kubernetes/require.tf

@@ -0,0 +1,25 @@
+# Terraform version and plugin versions
+
+terraform {
+  required_version = ">= 0.10.4"
+}
+
+provider "aws" {
+  version = "~> 1.0.0"
+}
+
+provider "local" {
+  version = "~> 1.0.0"
+}
+
+provider "null" {
+  version = "~> 1.0.0"
+}
+
+provider "template" {
+  version = "~> 1.0.0"
+}
+
+provider "tls" {
+  version = "~> 1.0.0"
+}

bare-metal/container-linux/kubernetes/require.tf

@@ -0,0 +1,21 @@
+# Terraform version and plugin versions
+
+terraform {
+  required_version = ">= 0.10.4"
+}
+
+provider "local" {
+  version = "~> 1.0.0"
+}
+
+provider "null" {
+  version = "~> 1.0.0"
+}
+
+provider "template" {
+  version = "~> 1.0.0"
+}
+
+provider "tls" {
+  version = "~> 1.0.0"
+}

digital-ocean/container-linux/kubernetes/require.tf

@@ -0,0 +1,25 @@
+# Terraform version and plugin versions
+
+terraform {
+  required_version = ">= 0.10.4"
+}
+
+provider "digitalocean" {
+  version = "0.1.2"
+}
+
+provider "local" {
+  version = "~> 1.0.0"
+}
+
+provider "null" {
+  version = "~> 1.0.0"
+}
+
+provider "template" {
+  version = "~> 1.0.0"
+}
+
+provider "tls" {
+  version = "~> 1.0.0"
+}

docs/aws.md

@@ -16,7 +16,7 @@ Controllers and workers are provisioned to run a `kubelet`. A one-time [bootkube
 
 * AWS Account and IAM credentials
 * AWS Route53 DNS Zone (registered Domain Name or delegated subdomain)
-* Terraform v0.10.1+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
+* Terraform v0.10.4+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
 
 ## Terraform Setup
 
@@ -24,7 +24,7 @@ Install [Terraform](https://www.terraform.io/downloads.html) v0.10.1 on your sys
 
 ```sh
 $ terraform version
-Terraform v0.10.1
+Terraform v0.10.7
 ```
 
 Add the [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) plugin binary for your system.

docs/bare-metal.md

@@ -12,7 +12,7 @@ Controllers are provisioned as etcd peers and run `etcd-member` (etcd3) and `kub
 * PXE-enabled [network boot](https://coreos.com/matchbox/docs/latest/network-setup.html) environment
 * Matchbox v0.6+ deployment with API enabled
 * Matchbox credentials `client.crt`, `client.key`, `ca.crt`
-* Terraform v0.9.2+ and [terraform-provider-matchbox](https://github.com/coreos/terraform-provider-matchbox) installed locally
+* Terraform v0.10.4+ and [terraform-provider-matchbox](https://github.com/coreos/terraform-provider-matchbox) installed locally
 
 ## Machines
 
@@ -113,7 +113,7 @@ Install [Terraform](https://www.terraform.io/downloads.html) v0.9.2+ on your sys
 
 ```sh
 $ terraform version
-Terraform v0.10.1
+Terraform v0.10.7
 ```
 
 Add the [terraform-provider-matchbox](https://github.com/coreos/terraform-provider-matchbox) plugin binary for your system.

docs/digital-ocean.md

@@ -10,7 +10,7 @@ Controllers and workers are provisioned to run a `kubelet`. A one-time [bootkube
 
 * Digital Ocean Account and Token
 * Digital Ocean Domain (registered Domain Name or delegated subdomain)
-* Terraform v0.10.1+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
+* Terraform v0.10.4+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
 
 ## Terraform Setup
 
@@ -18,7 +18,7 @@ Install [Terraform](https://www.terraform.io/downloads.html) v0.10.1+ on your sy
 
 ```sh
 $ terraform version
-Terraform v0.10.1
+Terraform v0.10.7
 ```
 
 Add the [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) plugin binary for your system.

docs/google-cloud.md

@@ -10,7 +10,7 @@ Controllers and workers are provisioned to run a `kubelet`. A one-time [bootkube
 
 * Google Cloud Account and Service Account
 * Google Cloud DNS Zone (registered Domain Name or delegated subdomain)
-* Terraform v0.9.2+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
+* Terraform v0.10.4+ and [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) installed locally
 
 ## Terraform Setup
 
@@ -18,7 +18,7 @@ Install [Terraform](https://www.terraform.io/downloads.html) v0.9.2+ on your sys
 
 ```sh
 $ terraform version
-Terraform v0.10.1
+Terraform v0.10.7
 ```
 
 Add the [terraform-provider-ct](https://github.com/coreos/terraform-provider-ct) plugin binary for your system.

google-cloud/container-linux/kubernetes/require.tf

@@ -0,0 +1,25 @@
+# Terraform version and plugin versions
+
+terraform {
+  required_version = ">= 0.10.4"
+}
+
+provider "google" {
+  version = "~> 1.0.1"
+}
+
+provider "local" {
+  version = "~> 1.0.0"
+}
+
+provider "null" {
+  version = "~> 1.0.0"
+}
+
+provider "template" {
+  version = "~> 1.0.0"
+}
+
+provider "tls" {
+  version = "~> 1.0.0"
+}