Add GH Actions Workflow

.github/workflows/nodejs.yml

@@ -0,0 +1,70 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+      - 'v*' # older version branches
+    tags:
+      - '*'
+  pull_request: {}
+  schedule:
+    - cron: '0 6 * * 0' # weekly, on sundays
+
+jobs:
+  test:
+    name: Tests
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-node@v1
+      with:
+        node-version: 8.x
+    - name: install yarn
+      run: npm install -g yarn
+    - name: install dependencies
+      run: yarn install
+    - name: lint
+      run: yarn lint:js
+    - name: test
+      run: yarn test
+
+  try-scenarios:
+    name: ember-try
+
+    runs-on: ubuntu-latest
+
+    needs: test
+
+    strategy:
+      fail-fast: true
+      matrix:
+        ember-try-scenario:
+         - ember-lts-1.13
+         - ember-lts-2.4
+         - ember-lts-2.8
+         - ember-lts-2.12
+         - ember-lts-2.16
+         - ember-lts-2.18
+         - ember-lts-3.4
+         - ember-lts-3.8
+         - ember-lts-3.12
+         - ember-release
+         - ember-beta
+         - ember-canary
+         - ember-default
+
+    steps:
+    - uses: actions/checkout@v1
+    - uses: actions/setup-node@v1
+      with:
+        node-version: 12.x
+    - name: install yarn
+      run: npm install -g yarn
+    - name: install dependencies
+      run: yarn install
+    - name: test
+      env:
+        EMBER_TRY_SCENARIO: ${{ matrix.ember-try-scenario }}
+      run: node_modules/.bin/ember try:one $EMBER_TRY_SCENARIO

config/ember-try.js

@@ -106,6 +106,30 @@ module.exports = function() {
             }
           }
         },
+        {
+          name: 'ember-lts-3.4',
+          npm: {
+            devDependencies: {
+              'ember-source': '~3.4.0'
+            }
+          }
+        },
+        {
+          name: 'ember-lts-3.8',
+          npm: {
+            devDependencies: {
+              'ember-source': '~3.8.0'
+            }
+          }
+        },
+        {
+          name: 'ember-lts-3.12',
+          npm: {
+            devDependencies: {
+              'ember-source': '~3.12.0'
+            }
+          }
+        },
         {
           name: 'ember-release',
           npm: {