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Devops: Lecture 1 - City University of New York (CUNY) CUNY Academic Works Open Educational Resources City College of New York 2020 DevOps: Lecture 1 - "Overview" Jeremy Andrews CUNY City College NYC Tech-in-Residence Corps How does access to this work benefit ou?y Let us know! More information about this work at: https://academicworks.cuny.edu/cc_oers/263 Discover additional works at: https://academicworks.cuny.edu This work is made publicly available by the City University of New York (CUNY). Contact: [email protected] Welcome to Devops Course Csc xxxxx Architecting your infrastructure PART I VERY FIRST THING Results of the SURVEY Let’s do student introductions 01 02 First Name? Academic Year? 03 04 What do you want to What task or activity learn? makes you the happiest? Discussion What is Devops? Now onto the Syllabus PART II 10 Minute Break PART III Group Assignment Time Lecture Containers & Control Panels, Docker, Kubernets What is Devops? DevOps is a set of software development practices that combine software development (Dev) and information-technology operations(Ops) to shorten the systems-development life cycle while delivering features, fixes, and updates frequently in close alignment with business objectives. History Of Devops ● In 2012, the State of DevOps report was conceived and launched by Alanna Brown at Puppet. As of 2014, the annual State of DevOps report is published by Nicole Forsgren, Gene Kim, Jez Humble and others. In 2014, they found that DevOps adoption was accelerating. ● Also in 2014, Lisa Crispin and Janet Gregory write the book More Agile Testing, containing a chapter on testing and DevOps. ● In 2015, Nicole Forsgren, Jez Humble and Gene Kim found DORA: DevOps Research and Assessment. What is Virtualization? Before Docker Present Devops State ● Recently, two different groups released reports on the current state of the DevOps movement. Puppet and Splunk served as primary sponsors of the 2018 State of DevOps Report, which surveyed more than 3,000 people worldwide, most of them from companies implementing DevOps. Here’s a quick overview ● Managers and team members have very different perspectiveson DevOps. ● DevSecOps is becoming more common. ● DevOps can make an organization more successful overall ● Elite performers have more learning reviews. ● A climate for learning is an important aspect of DevOps culture. CONTAINER (DOCKER) A container(docker) is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. A Docker container image is a lightweight, standalone, executable package of software that includes everything needed to run an application: code, runtime, system tools, system libraries and settings. Docker Containers Are Everywhere ● Linux ● Windows ● Data center ● Cloud ● Server less etc. Important What is Docker? Questions Why use Docker? The Future of DevOps The future holds more focus on security and DevSecOps, using AI/ML to improve processes, and more automation. ● Security : Security is huge ● AI/ML : DevOps with cloud-native and microservices allows you to revolutionize the app lifecycle – testing and production are integrated, and you see problems before you go live thanks to testing and troubleshooting. ● Automation : Automated cloud-based testing. Security is integrated into DevOps upfront for DevSecOps. FaaS is Key to DevOps Efficiency When AWS announced Lambda–a serverless Function-as-a-Service (FaaS) technology offering–the idea of encapsulating a specific task into a function that resides in the cloud was introduced into mainstream access. Now, with the rising popularity of microservices, DevOps is waking up the benefits of FaaS where it is used to build and maintain enterprise applications in agile environments. The move to serverless architecture using FaaS is one organizations are now increasingly likely to investigate in 2019 Container Management Definition Container Management is the process of organizing, adding or replacing large numbers of software containers. Container management uses software to automatically create, deploy and scale containers. This gives rise to the need for container orchestration. Why use Container Management? Container management is necessary when enterprises rely on containers to quickly deploy and update applications. Container management software like Kubernetes and Docker Swarm is designed to handle the rapid changes in DevOps strategy. DevOps ORCHESTRATION ● Reduce costs and improve productivity and predictability by standardizing Dev and Ops toolchains. ● The goal of orchestration is not just to automatically execute a service, which brings speed to the deployment process and gets applications into production faster. It also affords an opportunity to streamline – to optimize – those processes for even greater gains in deployment velocity. The State Of Devops What server templating tools do you / your organization regularly use? 90% of those who use server templating tool use Docker. 74% of respondents who work with Docker are using Docker Compose too. Does anyone recognize or have used any names from this list? Professionally Is this accurate for you’ll need to everyone? Definitely determine your not! center or hub for your own career What about this mind Map? Which applications do you choose? Let’s review each of the tools we’ll be using in this course Environment Tools: Applications: ● Code Anywhere ● Hugo ● OVH ● Wordpress ● Bitbucket ● Drupal ● Gitlab ● Custom Apps ● Visual Studio Code ● Sublime Devops Specific Tools: ● Docker ● Kubernetes Code Anywhere Codeanywhere is a cross-platform Cloud IDE created by Codeanywhere, Inc. Codeanywhere enables users to instantly write, edit, collaborate and run web development projects from a web browser and any mobile device. OVH OVH is a French cloud computing company that offers VPS, dedicated servers and other web services. The company was founded in 1999 by the Klaba family and is headquartered in Roubaix, France. OVH is incorporated as a simplified joint-stock company under French law. Bitbucket Bitbucket is a web-based version control repository hosting service owned by Atlassian, for source code and development projects that use either Mercurial or Git revision control systems. Bitbucket offers both commercial plans and free accounts. Gitlab GitLab is a web-based DevOps lifecycle tool that provides a Git-repository manager providing wiki, issue-tracking and CI/CD pipeline features, using an open-source license, developed by GitLab Inc. Visual Studio Code Visual Studio Code is a source-code editor developed by Microsoft for Windows, Linux and macOS. It includes support for debugging, embedded Git control and GitHub, syntax highlighting, intelligent code completion, snippets, and code refactoring. Sublime Text Sublime Text is a proprietary cross-platform source code editor with a Python application programming interface. It natively supports many programming languages and markup languages, and functions can be added by users with plugins, typically community-built and maintained under free-software licenses. Hugo Hugo is one of the most popular open-source static site generators. With its amazing speed and flexibility, Hugo makes building websites fun again. WordPress WordPress is a content management system based on PHP and MySQL that is usually used with the MySQL or MariaDB database servers but can also use the SQLite database engine. Features include a plugin architecture and a template system. Magento Magento is an open-source e-commerce platform written in PHP. The software was originally developed by Varien, Inc, a US private company headquartered in Culver City, California, with assistance from volunteers. Varien published the first general-availability release of the software on March 31, 2008. Custom Apps Custom apps range from homegrown ERPS to individual bots developers have built on their machines. Unlike many well known and often times closed course applications, custom apps can vary in their requirements and needs. As a devops professional, your role is not to judge how an app was or was not built, but more so how to help the developer optimize the user reach and when needed ensure the proper security and data protocol’s are in place. Docker Docker has been the number one container platform since its launch in 2013 and continues to improve. It’s also thought of as one of the most important DevOps tools out there. Docker has made containerization popular in the tech world, mainly because it makes distributed development possible and automates the deployment of your apps. End Of Lecture Questions?.
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