Add OpenTofu module examples for blog posts

.circleci/config.yml

@@ -64,14 +64,32 @@ jobs:
               --go-version ${GOLANG_VERSION}
 
             go install github.com/jstemmer/go-junit-report@latest
+            go install golang.org/x/tools/cmd/goimports@latest
+
+            # Install OpenTofu: https://opentofu.org/docs/intro/install/deb/
+            curl --proto '=https' --tlsv1.2 -fsSL https://get.opentofu.org/install-opentofu.sh -o install-opentofu.sh
+            chmod +x install-opentofu.sh
+            ./install-opentofu.sh --install-method deb
       - run:
           name: run tests
           command: |
             mkdir -p /tmp/logs/results
-            # Some unit tests depend on a version being set, so here we pass in the ldflags to set the version to the
-            # expected test string.
-            run-go-tests --path . --timeout 1h --packages "-ldflags '-X github.com/gruntwork-io/go-commons/version.Version=v1.33.7' ./..." \
-                                                                                                                                          | tee /tmp/logs/all.log
+
+            # We exclude the examples and test-fixtures folders as they contain example Go code, sometimes with Go
+            # templating syntax in it, and that code is not meant to have automated tests run against it.
+            packages_to_test="$(go list -e ./... | grep -v examples | grep -v test-fixtures | tr '\n' ' ')"
+
+            # Add Golang's bin folder to the PATH as one of the boilerplate templates needs it to run goimports
+            export PATH="/home/circleci/go/bin:$PATH"
+
+            # Some unit tests depend on a version being set, so here we pass in the ldflags to set the version
+            # to the expected test string.
+            run-go-tests \
+              --path . \
+              --timeout 1h \
+              --extra-flags "-ldflags '-X github.com/gruntwork-io/go-commons/version.Version=v1.33.7'" \
+              --packages "$packages_to_test" \
+              | tee /tmp/logs/all.log
           no_output_timeout: 3600s
 
       # Store junit test result so it shows up in the CircleCI ui

README.md

@@ -1102,6 +1102,9 @@ Before creating Boilerplate, we tried a number of other project generators, but
 [requirements](#features). We list these alternatives below as a thank you to the creators of those projects for
 inspiring many of the ideas in Boilerplate and so you can try out other projects if Boilerplate doesn't work for you:
 
+* [cookiecutter](https://pypi.org/project/cookiecutter/): Project generator written in Python. Uses Jinja templates,
+  which are reasonably pleasant to work with, and has a huge community. However, the dependency on Python makes
+  cross-platform usage tricky, and the `cookiecutter.json` file is quite limited in what you can do.
 * [yeoman](http://yeoman.io/): Project generator written in JavaScript. Good UI and huge community. However, very
   focused on generating web projects, and creating new generators is complicated and built around NPM. Not clear if
   it supports non-interactive mode.

examples/for-learning-and-testing/tofu-example/README.md

@@ -0,0 +1,10 @@
+# {{ .ModuleName | title }} example
+
+An example of how to use the [{{ .ModuleName | kebabcase }} module]({{ .ModuleSource }}).
+
+## Quick start
+
+1. Open `variables.tf` and fill in the values you want.
+2. `tofu init`.
+3. `tofu apply`.
+4. When you're done testing: `tofu destroy`.

examples/for-learning-and-testing/tofu-example/boilerplate.yml

@@ -0,0 +1,21 @@
+variables:
+  - name: ModuleName
+    description: The name of the module
+    type: string
+
+  - name: ModuleSource
+    description: The source URL (or file path) to use for the module
+    type: string
+
+  - name: TofuVersion
+    description: The version of OpenTOfu to use
+    type: string
+    default: 1.6.2
+
+hooks:
+  after:
+    # Format the code
+    - command: tofu
+      args:
+        - fmt
+      dir: "{{ outputFolder }}"

examples/for-learning-and-testing/tofu-example/main.tf

@@ -0,0 +1,10 @@
+terraform {
+  required_version = "{{ .TofuVersion }}"
+}
+
+module "{{ .ModuleName | snakecase }}" {
+  source = "{{ .ModuleSource }}"
+
+  example_required_input = "Hello"
+  example_optional_input = "World"
+}

examples/for-learning-and-testing/tofu-example/outputs.tf

@@ -0,0 +1,4 @@
+output "example_output" {
+  description = "example output"
+  value       = module.{{ .ModuleName | snakecase }}.example_output
+}

examples/for-learning-and-testing/tofu-module-full/boilerplate.yml

@@ -0,0 +1,37 @@
+variables:
+  - name: ModuleName
+    description: The name of the module
+    type: string
+
+  - name: CopyrightInfo
+    description: Copyright information to put in the README. Typically "Copyright <year> <company>."
+    type: string
+    default: ""
+
+  - name: TofuVersion
+    description: The version of OpenTofu to use
+    type: string
+    default: 1.6.2
+
+dependencies:
+  - name: module
+    template-url: ../tofu-module
+    output-folder: "modules/{{ .ModuleName | kebabcase }}"
+
+  - name: example
+    template-url: ../tofu-example
+    output-folder: "examples/{{ .ModuleName | kebabcase }}"
+    variables:
+      - name: ModuleSource
+        description: The source URL (or file path) to use for the module
+        type: string
+        default: "../../modules/{{ .ModuleName | kebabcase }}"
+
+  - name: test
+    template-url: ../tofu-test
+    output-folder: "test"
+    variables:
+      - name: ExamplePath
+        description: The source URL (or file path) to use for the module
+        type: string
+        default: "../examples/{{ .ModuleName | kebabcase }}"

examples/for-learning-and-testing/tofu-module/LICENSE.txt

@@ -0,0 +1,201 @@
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examples/for-learning-and-testing/tofu-module/README.md

@@ -0,0 +1,12 @@
+# {{ .ModuleName | title }} module
+
+TODO: fill in documentation for the {{ .ModuleName | kebabcase }} module.
+
+## License
+
+{{ if .CopyrightInfo -}}
+{{ .CopyrightInfo }}
+
+{{ end -}}
+
+Please see [LICENSE.txt](LICENSE.txt) for details on how the code in this repo is licensed.

examples/for-learning-and-testing/tofu-module/boilerplate.yml

@@ -0,0 +1,22 @@
+variables:
+  - name: ModuleName
+    description: The name of the module
+    type: string
+
+  - name: CopyrightInfo
+    description: Copyright information to put in the README. Typically "Copyright <year> <company>."
+    type: string
+    default: ""
+
+  - name: TofuVersion
+    description: The version of OpenTofu to use
+    type: string
+    default: 1.6.2
+
+hooks:
+  after:
+    # Format the code
+    - command: tofu
+      args:
+        - fmt
+      dir: "{{ outputFolder }}"

examples/for-learning-and-testing/tofu-module/main.tf

@@ -0,0 +1,7 @@
+terraform {
+  required_version = "{{ .TofuVersion }}"
+}
+
+# ---------------------------------------------------------------------------------------------------------------------
+# TODO: DEFINE YOUR RESOURCES HERE
+# ---------------------------------------------------------------------------------------------------------------------

examples/for-learning-and-testing/tofu-module/outputs.tf

@@ -0,0 +1,8 @@
+# ---------------------------------------------------------------------------------------------------------------------
+# TODO: DEFINE YOUR OUTPUTS HERE
+# ---------------------------------------------------------------------------------------------------------------------
+
+output "example_output" {
+  description = "example output"
+  value       = "${var.example_required_input} ${var.example_optional_input}"
+}