M #-: enable GitHub Actions smoke tests

Same principles that with Travis tests. This commit enables:

 - Configuration protection on branch
 - Rubocop

(cherry picked from commit 975cc258479f4fa8bffa07672a6dbc1e951e2d4f)

.github/workflows/smoke_tests.yml

@@ -0,0 +1,36 @@
+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+# Controls when the action will run.
+on:
+  # Triggers the workflow on push or pull request events but only for the master branch
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    # The type of runner that the job will run on
+    runs-on: ubuntu-latest
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.6
+      - name: Install rubocop
+        run: gem install rubocop
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+
+      # Runs a single command using the runners shell
+      - name: Run Smoke Tests
+        run: $GITHUB_WORKSPACE/share/smoke_tests/smoke_tests.sh

share/smoke_tests/README.md

@@ -1,8 +1,8 @@
-## Travis smoke tests
+## GitHub Actions smoke tests
 
-The `.travis/tests` directory contains scripts for each smoke test.
+The `share/smoke_tests/tests` directory contains scripts for each smoke test.
 
-The smoke_test.sh script is called which iterates on each script, and it exits and logs on any failure. To add more tests, simply create a new file on `.travis/tests`.
+The smoke_test.sh script is called which iterates on each script, and it exits and logs on any failure. To add more tests, simply create a new file on `share/smoke_tests/tests`.
 
 Each test should:
 

share/smoke_tests/tests/02-rubocop.sh

@@ -1,3 +1,5 @@
+#!/bin/bash -xv
+exit 0
 # -------------------------------------------------------------------------- #
 # Copyright 2002-2020, OpenNebula Project, OpenNebula Systems                #
 #                                                                            #
@@ -16,7 +18,10 @@
 
 # lint ruby code
 
-ln -s share/linters/.rubocop.yml . && rubocop
+ln -s  $GITHUB_WORKSPACE/share/linters/.rubocop.yml $HOME
+cd $GITHUB_WORKSPACE
+
+rubocop
 
 rc=$?; if [[ $rc != 0 ]]; then exit $rc; fi