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Devops, devoloping operations,software development
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- 2. Introduction to Devops •DevOps is a practice that enables a single team to handle the whole application lifecycle, including development, testing, release, deployment, operation, display, and planning. It is a mix of the terms “Dev” (for development) and “Ops” (for operations). We can speed up the delivery of applications and services by a business with the aid of DevOps. • Amazon, Netflix, and other businesses have all effectively embraced DevOps to improve their customer experience.
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- 7. Comparison Between Virtualizationand Containerization
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- 11. Devops Life-cycle 7Cs ofDevOps • Continuous Development • Continuous Integration • Continuous Testing • Continuous Deployment/Continuous Delivery • Continuous Monitoring • Continuous Feedback • Continuous Operations
- 12. Continuous Development • InContinuous Development code is written in small, continuous bits rather than all at once, Continuous Development is important in DevOps because this improves efficiency every time a piece of code is created, it is tested, built, and deployed into production. • Continuous Development raises the standard of the code and streamlines the process of repairing flaws, vulnerabilities, and defects. It facilitates developers’ ability to concentrate on creating high-quality code.
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- 14. Continuous Testing • Anyfirm can deploy continuous testing with the use of the agile and DevOps methodologies. Depending on our needs, we can perform continuous testing using automation testing tools such as Testsigma, Selenium, LambdaTest, etc. • With these tools, we can test our code and prevent problems and code smells, as well as test more quickly and intelligently. With the aid of a continuous integration platform like Jenkins, the entire process can be automated, which is another added benefit.
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- 16. Continuous Monitoring • DevOpslifecycle is incomplete if there was no Continuous Monitoring. Continuous Monitoring can be achieved with the help of Prometheus and Grafana we can continuously monitor and can get notified before anything goes wrong with the help of Prometheus we can gather many performance measures, including CPU and memory utilization, network traffic, application response times, error rates, and others. • Grafana makes it possible to visually represent and keep track of data from time series, such as CPU and memory utilization.
- 17. Continuous Feedback • Oncethe application is released into the market the end users will use the application and they will give us feedback about the performance of the application and any glitches affecting the user experience after getting multiple feedback from the end users’ the DevOps team will analyze the feedbacks given by end users and they will reach out to the developer team tries to rectify the mistakes they are performed in that piece of code • Continuous Feedback can increase the performance of the application and reduce bugs in the code making it smooth for end users to use the application.
- 18. Continuous Operations • Wewill sustain the higher application uptime by implementing continuous operation, which will assist us to cut down on the maintenance downtime that will negatively impact end users’ experiences. • More output, lower manufacturing costs, and better quality control are benefits of continuous operations.
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- 23. Magic of DockerRun • Pulls the <Ubuntu> image:Docker checks for the presence of the Ubuntu image and,if it doesn’t exist locally on the host,then Docker downloads it from Docker Hub website. If the image already exist,then Docker use it for the new container. • Creates a new container: Once Docker has the image, it uses it to create a container. • Allocates a file system and mounts a read-write layer. • Allocates a network/bridge interface: creates a network interface that allows Docker container to talk to the local host. • Find and attaches an available IP address from a pull. • Runs your application and • Capture and provides application output.
- 24. Creating a DockerImage
- 25. Docker Innovations • Simplifycontainer deployment • Reduces complexity of managing containers • Client<-> Server component
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- 27. Docker Container Lifecycle •Created: A container that has been created but not started • Running: A container running with all its processes • Paused: A container whose processes have been paused • Stopped: A container whose processes have been stopped • Deleted: A container in a dead state
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- 29. Docker Swarm A DockerSwarm is a container orchestration tool running the Docker application. It has been configured to join together in a cluster. The activities of the cluster are controlled by a swarm manager, and machines that have joined the cluster are referred to as nodes.
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- 32. When to Adoptand When not to
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