Introduction to linux
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This document provides an introduction to Linux, including an outline of topics to be covered such as the Linux shell, file system structure, commands, permissions, services, environment variables, and package installation. It defines Linux as an operating system kernel originally released by Linus Torvalds in 1991 and discusses the Linux shell as the interface used to communicate with the kernel via commands. It also lists some popular Linux distributions and describes the basic Linux directory structure and file system organization.
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Aws day 4Gourav Varma Auto Scaling (AS) can be configured to spawn and terminate EC2 instances automatically based on configured triggers, such as CPU utilization. This allows workloads to scale out during periods of high demand and scale in when demand decreases. AS is commonly used with Elastic Load Balancing to provide scalability for both compute resources and traffic handling. Proper configuration of AS is important to avoid overprovisioning instances and incurring unnecessary costs. While AS is not available in the AWS management console, it can be accessed via command line tools and SDKs.
Aws day 3
Aws day 3Gourav Varma This document provides information about different AWS services for data management and load balancing. It describes SimpleDB as a non-relational data store, DynamoDB as a NoSQL database, and RDS for SQL databases. It recommends Simple Storage Service, SimpleDB and RDS as providing the most value for free. The document also describes Elastic Load Balancing for distributing load across EC2 instances and provides an example of using ELB to route incoming data to processing instances.
Aws day 2
Aws day 2Gourav Varma The document provides an overview of key AWS infrastructure services including Elastic Compute Cloud (EC2), data transfer limits, Elastic Block Store (EBS), EBS snapshots, and Simple Storage Service (S3). It notes that EC2 provides on-demand computing power but is not scalable on its own, data transfers within AWS are free but transfers to the internet incur charges, EBS provides block-level storage for EC2 instances, snapshots provide incremental backups of EBS volumes, and S3 provides basic data hosting and storage.
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Ansible day 3
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Adnible day 2.ppt
Adnible day 2.pptGourav Varma This document discusses Ansible playbooks. It notes that playbooks are written in YAML format and are used for complex scenarios that require increased flexibility compared to ad-hoc commands. Playbooks allow for designating specific roles to hosts through collections of plays. The document also mentions writing YAML files, Ansible modules, syntax checking playbooks, and managing variables in playbooks.
Ansible day 1.ppt
Ansible day 1.pptGourav Varma This document provides an overview of the Ansible automation tool. It covers the course content which includes installing Ansible, environment setup, Ansible components like inventory and configuration files, using ad-hoc commands, playbooks, variables, templates, roles, vaults, and troubleshooting. The introduction defines what Ansible is, how it works using SSH to push modules to clients, and its architecture. Key benefits are its simplicity, agentless model, security, and easy learning curve. Ansible was created in 2012 and is now part of Red Hat/IBM.
Version control git day03(amarnath dada)
Version control git day03(amarnath dada)Gourav Varma Bitbucket is a web-based hosting service for source code and development projects that use Git or Mercurial revision control systems. It offers code review, issue tracking, documentation, and static site hosting. Users can generate an SSH public key to connect their Bitbucket account to a local Git repository and clone or push code. Common Git commands include add, commit, push, pull, checkout, merge, log and reset.
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Version control git day02Gourav Varma The document provides information about Git and GitHub workflows including cloning repositories, making commits, branching, and opening pull requests. It also briefly describes BitBucket and some of its key features like pull requests, code review, pipelines, and documentation hosting.
Version control git day01
Version control git day01Gourav Varma Version control systems allow users to track changes to files over time, enabling recall of previous versions. Centralized systems store version history on a central server, while distributed systems allow local version storage. Git is a distributed version control system that tracks changes to files and coordinates collaboration through branching and commits. GitHub builds on Git and enables hosting of repositories with features like pull requests to propose and review changes.
Dev ops
Dev opsGourav Varma The document discusses the Software Development Life Cycle (SDLC) and DevOps. It defines SDLC as a process used by the software industry to design, develop, and test high-quality software. SDLC aims to produce software that meets expectations within time and cost estimates. The document then discusses DevOps, defining it as a culture promoting collaboration between development and operations teams to deploy code to production faster using automation. It outlines the DevOps lifecycle and principles, why DevOps is needed to streamline the software delivery process, and tools used in DevOps.
Shell programming 2
Shell programming 2Gourav Varma This document discusses various concepts in shell programming including the use of semicolons, colons, test commands for strings and integers, while and until loops, command line arguments, variables, reading input, case statements, and redirection. Key points covered include using semicolons to separate statements, the colon command doing nothing, testing strings for length and equality, comparing integers, accessing command line arguments, and redirecting standard input/output/error.
Final terraform
Final terraformGourav Varma This document provides an overview of Terraform including its key features and how to install, configure, and use Terraform to deploy infrastructure on AWS. It covers topics such as creating EC2 instances and other AWS resources with Terraform, using variables, outputs, and provisioners, implementing modules and workspaces, and managing the Terraform state.
Version control git day03
Version control git day03Gourav Varma Bitbucket is a code hosting service that allows for version control using Git and Mercurial repositories. It offers free accounts and paid plans. Key features include pull requests, code review, two-factor authentication, Git LFS, documentation hosting, issue tracking, and static site hosting. The document then provides instructions on setting up SSH keys, cloning repositories, common Git commands like add, commit, push, and operations like branching, merging, and deleting branches. It also discusses webhooks and includes sample interview questions about Git and Bitbucket.
Version control git day02
Version control git day02Gourav Varma Bitbucket is a code hosting service that supports Git and Mercurial version control systems. It offers free accounts and paid plans. Key features include pull requests, code review, two-factor authentication, Git LFS, documentation hosting, issue tracking, and static site hosting. The document then provides instructions on setting up SSH keys, cloning repositories, common Git commands like add, commit, push, pull, checkout and operations like merging, reverting, deleting branches. It concludes with some frequently asked interview questions about Git and Bitbucket.
Version control git day01
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Docker swarm
Docker swarmGourav Varma Docker Swarm is an orchestration tool that manages Docker applications running on a cluster of Docker nodes. It allows deploying containers across multiple nodes. Manager nodes maintain the cluster state and assign tasks to worker nodes, which receive and run the tasks. Services deploy containers of the same image across nodes for scaling. The docker-compose.yml file defines multi-container Docker applications using Docker Compose.
Docker advance topic (2)
Docker advance topic (2)Gourav Varma The document discusses advanced DevOps topics including Docker installation on CentOS, bridge concepts, and copyright information. Sections cover Docker repositories, bridge networking, and ending with multiple mentions of copyright by KalKey training in 2020.
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- 3. What is Linux LinusTorvalds,in 1991 Released the first version of his Linux Kernel. Operating system“kernel” is the core software used to communicate with computer hardware. It’s a core and modular system of drivers used to create a Resource manager for allocating memory and time to system and user processes as well as interacting with files (I/O) Kernel operates in its own memory or“kernel-space”. @2020 copyright KalKey training
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