finished ci workflow + added build badge on readme

Author: andre-marcos-perez

Diff for: .github/workflows/ci.yml

@@ -1,11 +1,9 @@
 name: Docker Hub Build
 
 on:
-  push:
-    branches: [ feature/github-ci ]
 
-#  schedule:
-#    - cron:  '0 0/6 * * *'
+  schedule:
+    - cron:  '0 0/6 * * *'
 
 jobs:
 

Diff for: .gitignore

@@ -2,13 +2,6 @@
 # Created by https://www.toptal.com/developers/gitignore/api/spark,jupyternotebooks,pycharm,pycharm+iml,pycharm+all
 # Edit at https://www.toptal.com/developers/gitignore?templates=spark,jupyternotebooks,pycharm,pycharm+iml,pycharm+all
 
-### App defined ###
-
-docker-compose.yml
-
-build/build.yml
-build/docker-compose.yml
-
 ### JupyterNotebooks ###
 # gitignore template for Jupyter Notebooks
 # website: http://jupyter.org/

Diff for: CONTRIBUTING.md

@@ -14,11 +14,11 @@ and parallel computing through our projects. Please follow the template bellow t
 
 ### Contributions ideas
 
-- Microsoft Windows build script;
-- DockerHub CI/CD integration;
-- Spark submit support;
-- JupyterLab Scala kernel;
-- Jupyter notebook with Apache Spark Scala API examples;
-- JupyterLab R kernel;
-- Jupyter notebook with Apache Spark R API examples;
-- Test coverage.
+- [] Microsoft Windows build script;
+- [x] DockerHub CI/CD integration;
+- [] Spark submit support;
+- [] JupyterLab Scala kernel;
+- [] Jupyter notebook with Apache Spark Scala API examples;
+- [] JupyterLab R kernel;
+- [] Jupyter notebook with Apache Spark R API examples;
+- [] Test coverage.

Diff for: README.md

@@ -1,17 +1,17 @@
 # Apache Spark Standalone Cluster on Docker
 > Build your own Apache Spark Standalone cluster with a JupyterLab interface on Docker :zap:
 
-This project gives you an out-of-the-box **Apache Spark** cluster with a **JupyterLab** interface and a simulated **Apache Hadoop Distributed File System**, all built on top of **Docker**. Learn Apache Spark through its Python API, **PySpark**, by running the [Jupyter notebooks](build/workspace/pyspark.ipynb) with examples on how to read, process and write data.
+This project gives you an out-of-the-box **Apache Spark** cluster in standalone mode with a **JupyterLab** interface and a simulated **Apache Hadoop Distributed File System**, all built on top of **Docker**. Learn Apache Spark through its Python API, **PySpark**, by running the [Jupyter notebooks](build/workspace/pyspark.ipynb) with examples on how to read, process and write data.
+
+> The project just got its [own article](https://towardsdatascience.com/apache-spark-cluster-on-docker-ft-a-juyterlab-interface-418383c95445) at Towards Data Science Medium blog! :sparkles:
 
 <p align="center"><img src="docs/image/cluster-architecture.png"></p>
 
+![Docker Hub Build](https://github.com/andre-marcos-perez/spark-standalone-cluster-on-docker/workflows/Docker%20Hub%20Build/badge.svg?branch=master)
 ![jupyterlab-latest-version](https://img.shields.io/docker/v/andreper/jupyterlab/2.1.4-spark-3.0.0?color=brightgreen&label=jupyterlab-latest)
 ![spark-latest-version](https://img.shields.io/docker/v/andreper/spark-master/3.0.0-hadoop-2.7?color=yellow&label=spark-latest)
 ![docker-version](https://img.shields.io/badge/docker-v1.13.0%2B-blue)
 ![docker-compose-version](https://img.shields.io/badge/docker--compose-v3.0%2B-blue)
-![repository-license](https://img.shields.io/github/license/andre-marcos-perez/spark-cluster-on-docker?color=orange)
-
-> The project just got its [own article](https://towardsdatascience.com/apache-spark-cluster-on-docker-ft-a-juyterlab-interface-418383c95445) at Towards Data Science Medium blog! :sparkles:
 
 ## Contents