ci(travis): add .travis.yml based on template-formula

.travis.yml

@@ -0,0 +1,67 @@
+stages:
+  - test
+  # - commitlint
+  # - name: release
+  #   if: branch = master AND type != pull_request
+
+sudo: required
+cache: bundler
+language: ruby
+
+services:
+  - docker
+
+before_install:
+  - bundle install
+
+# Make sure the instances listed below match up with
+# the `platforms` defined in `kitchen.yml`
+env:
+  matrix:
+    - INSTANCE: default-debian-9-2019-2-py3
+    - INSTANCE: default-ubuntu-1804-2019-2-py3
+    - INSTANCE: default-centos-7-2019-2-py2
+    - INSTANCE: default-fedora-29-2019-2-py2
+    - INSTANCE: default-opensuse-423-2018-3-py2
+    - INSTANCE: default-debian-8-2018-3-py2
+    - INSTANCE: default-ubuntu-1604-2018-3-py2
+    - INSTANCE: default-fedora-28-2018-3-py2
+    - INSTANCE: default-debian-8-2017-7-py2
+    - INSTANCE: default-ubuntu-1604-2017-7-py2
+
+script:
+  - bundle exec kitchen verify ${INSTANCE}
+
+# jobs:
+#   include:
+#     # Define the commitlint stage
+#     - stage: commitlint
+#       language: node_js
+#       node_js: lts/*
+#       before_install: skip
+#       script:
+#         - npm install @commitlint/config-conventional -D
+#         - npm install @commitlint/travis-cli -D
+#         - commitlint-travis
+#     # Define the release stage that runs semantic-release
+#     - stage: release
+#       language: node_js
+#       node_js: lts/*
+#       before_install: skip
+#       script:
+#         # Update `AUTHORS.md`
+#         - export MAINTAINER_TOKEN=${GH_TOKEN}
+#         - go get github.com/myii/maintainer
+#         - maintainer contributor
+#
+#         # Install all dependencies required for `semantic-release`
+#         - npm install @semantic-release/changelog@3 -D
+#         - npm install @semantic-release/exec@3 -D
+#         - npm install @semantic-release/git@7 -D
+#       deploy:
+#         provider: script
+#         skip_cleanup: true
+#         script:
+#           # Run `semantic-release`
+#           - npx semantic-release@15
+