DevOps Skills

DevOps

·         DevOps is a set of practices that automates the processes between software development and IT teams, in order that they can build, test, and release software faster and more reliably, DevOps is more about the automation of processes, the deployment of code, and releases of software.

·         DevOps is a set of practices that combines software development (Dev) and information-technology operations (Ops) which aims to shorten the systems development life cycle and provide continuous delivery with high software quality.

·         DevOps (development and operations) is an enterprise software development phrase used to mean a type of agile relationship between development and IT operations. The goal of DevOps is to change and improve the relationship by advocating better communication and collaboration between these two business units.

DevOps Engineer:

·         DevOps Engineer works with developers and the IT staff to oversee the code releases. They are either developers who get interested in deployment and network operations or sysadmins who have a passion for scripting and coding and move into the development side where they can improve the planning of test and deployment.

·         DevOps engineer might start as a software developer who oversees aspects of IT operations. Conversely, a DevOps engineer might move up from a system administrator role because they have gained knowledge about coding, scripting, integration and testing. A DevOps Engineer has to manage the IT infrastructure as per the requirement of the supported software code

DevOps Engineer Skills:

·         Comprehensive background in OS administration, such as Linux and Windows;

·         Strong experience with a range of automation and configuration management tools such as traditional scripts, as well as more specific tools such as Puppet and Chef.

·         A clear understanding of coding and scripting with common languages, such as PHP, Python, Perl and Ruby.

·         Knowledge of at least one major coding language, such as C++ or Java.

·         The ability to identify, assess and integrate various open source technologies and cloud services.

·         A strong IT hardware and operations background with hands-on expertise in servers, storage and network device installation, provisioning and monitoring. This Is usually supplemented with a knowledge of IT best practices for fault-tolerant, high-availability operations;

·         Supportive and collaborative management abilities in a team environment, as well as proven customer-facing management skills.

·         Strong knowledge of virtualization technologies, such as vmware vsphere for vms, as well as expertise with container technologies, such as Docker and Kubernetes.

·         Proven experience with CI/CD tools, such as Microsoft github, Atlassian Jira and Confluence, Red Hat Ansible, Prometheus and Jenkins.

·         Detailed, hands-on experience with public cloud resources and services such as AWS, Microsoft Azure and Google Cloud.

·         Experience with a diverse range of IT monitoring and management tools, such as Cloudflare and Datadog.

·         Knowledge on how to troubleshoot and resolve technical issues in test and production environments.

·         Some of the important tools that are being widely deployed include Puppet, Chef, Jenkins, Salt, Ansible, Kubernetes, Docker, Nagios, Cloud Computing and Storage platform, and Infrastructure as a Code.

DevOps tools:

1.       Gradle

2.       Git

3.       Jenkins

4.       Bamboo

5.       Docker

6.       Kubernetes

7.       Puppet

8.       Ansible

9.       Nagios

10.   Raygun

What is CI CD in DevOps?

Continuous integration and continuous delivery (CI/CD) are often cited as pillars of successful DevOps. To establish and optimize the CI/CD development model and reap the benefits, companies need to build an effective pipeline to automate their build, integration and testing processes.

DevOps Developer

·         DevOps (development and operations)

·         Gradle, GitHub, Jenkins, Junit, Docker, Kubernetes, Ansible, Bamboo, Puppet, Terraform, Nagios,

·         Works on cloud infrastructure: Jenkins, Maven, Ant, Gradle, Chef, Puppet, Docker, and UrbanCode.
Agile collaborative environment to build, deploy, configure Technologies used by DevOps Engineers include Kubernetes, Docker, Apache Mesos, the HashiCorp stack (Terraform, Vagrant, Packer, Vault, Consul, Nomad), Jenkins, etc.]

Build tools:

Build tools are programs that automate the creation of executable applications from source code. Building incorporates compiling, linking and packaging the code into a usable or executable form. In small projects, developers will often manually invoke the build process.

Build automation is the process of automating the creation of a software build and the associated processes including: compiling computer source code into binary code, packaging binary code, and running automated tests.

Build Automation Tools:

Automated Build Tool is a software that compiles the source code to machine code.

Top 10 BEST Build Automation Tools To Speed Up Deployment Process

Best Automated Build Deployment Software.

1) Jenkins

2) Maven

3) Gradle

4) Travis CI

5) Bamboo

6) CircleCI

7) TeamCity

For java - Ant, Maven, Gradle.

For .NET framework - NAnt

c# - MsBuild.

As a Java developer, the most popular build tools are Ant and Maven. Both can be run in IDEs like IntelliJ or Eclipse or NetBeans.

Java Build Tools-

1.       Ant with ivy

2.       Maven

3.       Gradle

Maven is a build automation tool used primarily for Java projects. Maven can also be used to build and manage projects written in C#, Ruby, Scala, and other languages. The Maven project is hosted by the Apache Software Foundation, where it was formerly part of the Jakarta Project.

Maven is a powerful project management tool that is based on POM (project object model). It is used for projects build, dependency and documentation. It simplifies the build process like ANT. ... In short terms we can tell maven is a tool that can be used for building and managing any Java-based project.

Jenkins is a continuous integration suite continuous integration CI

Build automation VS Deployment automation VS CI (Continuous integration) VS CD (Continuous delivery)

1.       Build automation is automating how the software is built instead of manually invoking the compiler. This would be accomplished via tools such as e.g. Make or Ant. Deployment automation is taking your built software and deploying or installing it on a test or production system. Build automation is automating how the software is built instead of manually invoking the compiler. This would be accomplished via tools such as e.g. Make or Ant.

2.       Deployment automation is taking your built software and deploying or installing it on a test or production system.

3.       Continuous integration means having an automated process build your software continuously as developers check in code, and run unit tests to ensure the code still works. For example, every 15 to 30 minutes a server might wake up, scan VCS for new check-ins, then update and build the project if any changes were made. In addition to performing compile steps, this is also a great opportunity to run automated unit tests and code quality checks.

4.       Continuous delivery is a combination of all of the previous concepts where the software builds are also deployed to a test system, optionally with tests performed and reports generated.

Version control tools:

Version control systems are a category of software tools that help a software team manage changes to source code over time. Version control software keeps track of every modification to the code in a special kind of database.

Top 5 open source version control tools for system admins:

1.       CVS

2.       SVN

3.       GIT

4.       Mercurial

5.       Bazaar

What is the difference between Git and GitHub?

Git is a revision control system, a tool to manage your source code history. GitHub is a hosting service for Git repositories. So they are not the same thing: Git is the tool, GitHub is the service for projects that use Git. To get your code to GitHub, have a look here.

MuleSoft

·         MuleSoft, LLC. is a software company headquartered in San Francisco, California, that provides integration software for connecting applications, data and devices.

·         MuleSoft is a data integration platform built to connect a variety of data sources and applications, and perform analytics and ETL processes. MuleSoft has also developed connectors for SaaS applications to allow analysis on SaaS data in conjunction with cloud-based and traditional data sources.

·         Mulesoft ESB is the runtime engine of Anypoint Platform, a Java-based enterprise service bus (ESB) and integration platform that lets developers connect applications swiftly and efficiently, allowing them to exchange data.

·         Mule (software) Mule is a lightweight enterprise service bus (ESB) and integration framework provided by MuleSoft. The platform is Java-based, but can broker interactions between other platforms such as .NET using web services or sockets.