Molecule Aids in The Development and Testing Of ansible Roles

Ansible Molecule

About Ansible Molecule

Molecule project is designed to aid in the development and testing of Ansible roles.

Molecule provides support for testing with multiple instances, operating systems and distributions, virtualization providers, test frameworks and testing scenarios.

Molecule encourages an approach that results in consistently developed roles that are well-written, easily understood and maintained.

Molecule supports only the latest two major versions of Ansible (N/N-1), meaning that if the latest version is 2.9.x, we will also test our code with 2.8.x.

Once installed, the command line can be called using any of the methods below:

molecule ...
python3 -m molecule ...  # python module calling method

Documentation

Read the documentation and more at https://molecule.readthedocs.io/.

Get Involved

If you want to get moving fast and make a quick patch:

$ git clone https://github.com/ansible-community/molecule && cd molecule
$ python3 -m venv .venv && source .venv/bin/activate
$ python3 -m pip install -U setuptools pip tox

And you're ready to make your changes!

Authors

Molecule project was created by Retr0h and it is now community-maintained as part of the Ansible by Red Hat project.

License

The MIT License.

The logo is licensed under the Creative Commons NoDerivatives 4.0 License.

If you have some other use in mind, contact us.


Download Details:

Author: ansible-community
Source Code: https://github.com/ansible-community/molecule

License: MIT license

#ansible 

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Molecule Aids in The Development and Testing Of ansible Roles
Nigel  Uys

Nigel Uys

1672324080

Molecule: Molecule Aids in The Development & Testing Of ansible Roles

About Ansible Molecule

Molecule project is designed to aid in the development and testing of Ansible roles.

Molecule provides support for testing with multiple instances, operating systems and distributions, virtualization providers, test frameworks and testing scenarios.

Molecule encourages an approach that results in consistently developed roles that are well-written, easily understood and maintained.

Molecule supports only the latest two major versions of Ansible (N/N-1), meaning that if the latest version is 2.9.x, we will also test our code with 2.8.x.

Once installed, the command line can be called using any of the methods below:

molecule ...
python3 -m molecule ...  # python module calling method

Documentation

Read the documentation and more at https://molecule.readthedocs.io/.

Get Involved

If you want to get moving fast and make a quick patch:

$ git clone https://github.com/ansible-community/molecule && cd molecule
$ python3 -m venv .venv && source .venv/bin/activate
$ python3 -m pip install -U setuptools pip tox

And you're ready to make your changes!

Download Details:

Author: Ansible-community
Source Code: https://github.com/ansible-community/molecule 
License: MIT license

#ansible #python #testing #hacktoberfest 

Testing Ansible Roles for Multiple Hosts or Clusters with Molecule

In the era of Big Data many popular tools are built to scale out by spliting the workload over multiple hosts. Tools like Hadoop, Spark, Zookeeper, Solr, and MongoDB can be deployed in standalone and clustered modes. Writing and testing Ansible roles for these tools is difficult, especially if you are writing and testing the Ansible roles on your personal desktop or laptop with limited resources.

In order to write and test Ansible roles for multiple hosts/clusters, it is important to use tools that are efficient and automated, otherwise you will spend your time manually creating and destroying your development and test environments. Luckily, the Molecule project for Ansible is the perfect tool for this use case because it automates every part of the development and testing lifecycle and it uses lightweight Docker containers to quickly create and destroy the test environment. Unfortunately, the documentation for Molecule isn’t clear about how you can go about setting up multiple development and test scenarios (standalone & cluster) or how to setup multiple hosts and configure the host groups and host variables.

In this example, I will show how I used Molecule for creating and testing an Ansible Role for Apache Zookeeper that will deploy Zookeeper in either standalone or clustered mode. The full Ansible role is at https://github.com/kevincoakley/ansible-role-zookeeper .


First, I will show how to create one scenario for standalone mode and one scenario for clustered mode. We will keep the default scenario for standalone mode and create a second scenario for clustered mode. Simply copy the molecule/default directory and all of its files to molecule/cluster.

.
└── molecule
    ├── cluster
    │   ├── converge.yml
    │   ├── molecule.yml
    │   └── verify.yml
    ├── default
    │   ├── converge.yml
    │   ├── molecule.yml
    │   └── verify.yml
    └── yaml-lint.yml

Once that is done, edit molecule/cluster/molecule.yml and update the name variable underscenario YAML node to cluster, like so:

scenario:
  name: cluster

That is it! If you want to test the default scenario you can run molecule test -s default, run the cluster scenario with molecule test -s cluster or run both with molecule test --all.

#cluster #ansible #ansible-roles #multi-host #molecule #testing

Fredy  Larson

Fredy Larson

1595059664

How long does it take to develop/build an app?

With more of us using smartphones, the popularity of mobile applications has exploded. In the digital era, the number of people looking for products and services online is growing rapidly. Smartphone owners look for mobile applications that give them quick access to companies’ products and services. As a result, mobile apps provide customers with a lot of benefits in just one device.

Likewise, companies use mobile apps to increase customer loyalty and improve their services. Mobile Developers are in high demand as companies use apps not only to create brand awareness but also to gather information. For that reason, mobile apps are used as tools to collect valuable data from customers to help companies improve their offer.

There are many types of mobile applications, each with its own advantages. For example, native apps perform better, while web apps don’t need to be customized for the platform or operating system (OS). Likewise, hybrid apps provide users with comfortable user experience. However, you may be wondering how long it takes to develop an app.

To give you an idea of how long the app development process takes, here’s a short guide.

App Idea & Research

app-idea-research

_Average time spent: two to five weeks _

This is the initial stage and a crucial step in setting the project in the right direction. In this stage, you brainstorm ideas and select the best one. Apart from that, you’ll need to do some research to see if your idea is viable. Remember that coming up with an idea is easy; the hard part is to make it a reality.

All your ideas may seem viable, but you still have to run some tests to keep it as real as possible. For that reason, when Web Developers are building a web app, they analyze the available ideas to see which one is the best match for the targeted audience.

Targeting the right audience is crucial when you are developing an app. It saves time when shaping the app in the right direction as you have a clear set of objectives. Likewise, analyzing how the app affects the market is essential. During the research process, App Developers must gather information about potential competitors and threats. This helps the app owners develop strategies to tackle difficulties that come up after the launch.

The research process can take several weeks, but it determines how successful your app can be. For that reason, you must take your time to know all the weaknesses and strengths of the competitors, possible app strategies, and targeted audience.

The outcomes of this stage are app prototypes and the minimum feasible product.

#android app #frontend #ios app #minimum viable product (mvp) #mobile app development #web development #android app development #app development #app development for ios and android #app development process #ios and android app development #ios app development #stages in app development

Mitchel  Carter

Mitchel Carter

1602979200

Developer Career Path: To Become a Team Lead or Stay a Developer?

For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, I was thinking, “I want to be a team leader. It’s so cool, he’s in charge of everything and gets more money. It’s the next step after a senior.” Back then, no one could tell me how wrong I was. I had to find it out myself.

I Got to Be a Team Leader — Twice

I’m naturally very organized. Whatever I do, I try to put things in order, create systems and processes. So I’ve always been inclined to take on more responsibilities than just coding. My first startup job, let’s call it T, was complete chaos in terms of development processes.

Now I probably wouldn’t work in a place like that, but at the time, I enjoyed the vibe. Just imagine it — numerous clients and a team leader who set tasks to the developers in person (and often privately). We would often miss deadlines and had to work late. Once, my boss called and asked me to come back to work at 8 p.m. to finish one feature — all because the deadline was “the next morning.” But at T, we were a family.

We also did everything ourselves — or at least tried to. I’ll never forget how I had to install Ubuntu on a rack server that we got from one of our investors. When I would turn it on, it sounded like a helicopter taking off!

At T, I became a CTO and managed a team of 10 people. So it was my first experience as a team leader.

Then I came to work at D — as a developer. And it was so different in every way when it came to processes.

They employed classic Scrum with sprints, burndown charts, demos, story points, planning, and backlog grooming. I was amazed by the quality of processes, but at first, I was just coding and minding my own business. Then I became friends with the Scrum master. I would ask him lots of questions, and he would willingly answer them and recommend good books.

My favorite was Scrum and XP from the Trenches by Henrik Kniberg. The process at D was based on its methods. As a result, both managers and sellers knew when to expect the result.

Then I joined Skyeng, also as a developer. Unlike my other jobs, it excels at continuous integration with features shipped every day. Within my team, we used a Kanban-like method.

We were also lucky to have our team leader, Petya. At our F2F meetings, we could discuss anything, from missing deadlines to setting up a task tracker. Sometimes I would just give feedback or he would give me advice.

That’s how Petya got to know I’d had some management experience at T and learned Scrum at D.

So one day, he offered me to host a stand-up.

#software-development #developer #dev-team-leadership #agile-software-development #web-development #mobile-app-development #ios-development #android-development

Joseph  Murray

Joseph Murray

1621492530

7 Test Frameworks To Follow in 2021 for Java/Fullstack Developers

It is time to learn new test frameworks in 2021 to improve your code quality and decrease the time of your testing phase. Let’s explore 6 options for devs.

It is time to learn new test frameworks to improve your code quality and decrease the time of your testing phase. I have selected six testing frameworks that sound promising. Some have existed for quite a long time but I have not heard about them before.

At the end of the article, please tell me what you think about them and what your favorite ones are.

Robot Framework

Robot Framework is a generic open-source automation framework. It can be used for test automation and robotic process automation (RPA).

Robot Framework is open and extensible and can be integrated with virtually any other tool to create powerful and flexible automation solutions. Being open-source also means that Robot Framework is free to use without licensing costs.

The RoboFramework is a framework** to write test cases and automation processes.** It means that it may replace** your classic combo Selenium + Cucumber + Gherkins**. To be more precise, the Cucumber Gherkins custom implementation you wrote will be handled by RoboFramework and Selenium invoked below.

For the Java developers, this framework can be executed with Maven or Gradle (but less mature for the latter solution).

#java #testing #test #java framework #java frameworks #testing and developing #java testing #robot framework #test framework #2021