add linters and publish action

.github/CODEOWNERS

@@ -0,0 +1 @@
+@test-kitchen/maintainers

.github/dependabot.yml

@@ -1,7 +1,8 @@
+---
 version: 2
 updates:
-- package-ecosystem: bundler
-  directory: "/"
-  schedule:
-    interval: daily
-  open-pull-requests-limit: 10
+  - package-ecosystem: bundler
+    directory: "/"
+    schedule:
+      interval: daily
+    open-pull-requests-limit: 10

.github/workflows/linters.yml

@@ -0,0 +1,45 @@
+---
+name: linters
+
+'on':
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  yamllint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out code
+        uses: actions/checkout@main
+      - name: Run yaml Lint
+        uses: actionshub/yamllint@main
+  chefstyle:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        ruby: ['2.7', '3.0', '3.1']
+    name: Chefstyle on Ruby ${{ matrix.ruby }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - uses: r7kamura/rubocop-problem-matchers-action@v1
+      - run: bundle exec rake style
+  unit-test:
+    runs-on: ubuntu-latest
+    needs: [yamllint, chefstyle]
+    strategy:
+      matrix:
+        ruby: ['2.7', '3.0', '3.1']
+    name: Unit Tests on Ruby ${{ matrix.ruby }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - run: bundle exec rake test

.github/workflows/please-release.yml

@@ -0,0 +1,16 @@
+---
+'on':
+  push:
+    branches:
+      - main
+
+name: release-please
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: google-github-actions/release-please-action@v3
+        with:
+          release-type: ruby
+          package-name: kitchen-openstack
+          version-file: lib/kitchen/driver/openstack_version.rb

.github/workflows/publish.yml

@@ -0,0 +1,17 @@
+---
+name: Publish
+
+'on':
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build and publish gem
+        uses: jstastny/publish-gem-to-github@master
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          owner: ${{ secrets.OWNER }}

kitchen-openstack.gemspec

@@ -17,7 +17,7 @@ Gem::Specification.new do |spec|
   spec.files         = Dir["LICENSE", "README.md", "lib/**/*"]
   spec.require_paths = ["lib"]
 
-  spec.required_ruby_version = ">= 2.6.0"
+  spec.required_ruby_version = ">= 2.7.0"
 
   spec.add_dependency "test-kitchen", ">= 1.4.1", "< 4"
   spec.add_dependency "fog-openstack", "~> 1.0"