automating maintenance with Github actions (#290)

* setup-go with go-version 1.17
* checkout submodules
* remove explicit aws provider version

Author: PatMyron

.github/workflows/maintenance.yaml

@@ -0,0 +1,32 @@
+on:
+  push:
+    branches: [ master ]
+  schedule:
+    - cron: '*/5 * * * *'
+  workflow_dispatch: # Enables on-demand/manual triggering
+jobs:
+  job:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: true
+      - uses: actions/setup-go@v2
+        with:
+          go-version: 1.17
+      - run: |
+          go get github.com/aws/aws-sdk-go
+          go mod tidy
+          go generate ./...
+          cd tools/provider-schema
+          terraform init -upgrade
+          terraform providers schema -json > schema.json
+      - uses: peter-evans/create-pull-request@v3
+        with:
+          commit-message: |
+            autogenerated maintenance
+          title: autogenerated maintenance
+          delete-branch: true
+          body: |
+            If tests are stuck on https://github.com/peter-evans/create-pull-request/issues/48:
+            ["Manually close pull requests and immediately reopen them. This will enable `on: pull_request` workflows to run and be added as checks."](https://github.com/peter-evans/create-pull-request/blob/master/docs/concepts-guidelines.md#triggering-further-workflow-runs)

tools/provider-schema/README.md

@@ -6,9 +6,8 @@ This `schema.json` file is used to get information against the terraform-provide
 
 ## Update schema file
 
-```console
-$ tfenv install
-# Edit provider.tf to update provider version
-$ terraform init -upgrade
-$ terraform providers schema -json > schema.json
+```sh
+tfenv install
+terraform init -upgrade
+terraform providers schema -json > schema.json
 ```

tools/provider-schema/provider.tf

@@ -2,7 +2,6 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = "3.70.0"
     }
   }
 }