Challenges of on-premises Data Centers: Scaling of infrastructure Time consuming Expensive Wasting resources Cloud Service: Any Service which is made available to the user via Internet based on the demand. From a Cloud Computing provider’s Servers. EC2 Instance. Cloud Computing: Cloud Computing is the delivery of computing Services-Servers, Storage Database Networking Software Analytics and more over the internet. Cloud Service Models: IaaS (Host) -----------------------> Ec2 Paas (Build) ---------------------> EKS , RDS SaaS (Consume) ---------------> Cloud Watch Advantages of AWS: Cost-Effectiveness ------------ Pay as you Go Elasticity & Agility Flexibility & Openness Security Reliable & High Performance AWS Global Infrastructure: Regions -----------------22 Availability Zones ----55 How to choose the right Region in AWS? (Interview Question) User/Customer Loca...
Linux is started around 1991 by Linus Torvalds. Open Source Linux is a multi-user & multi-tasking OS. Linux is "Case-sensitive". Linux distributions : Redhat Centos Ubuntu SusLinuxux Mandriva Ferodo Debian Gentoo Slackware Linux File Structure: home: Users' information Reddy Rama Lakshmi Krishna bin: Contains of binary files (ls,mkdir,cd....etc) sbin: System-bin (Contains of binary files) bin: Normal Users can access sbin, bin: Root user can access Types of users: Admin User-----------Super User--Root User Normal User System User---------[ After installing the packages System user will create them automatically ] etc: All configuration files ---------------------------------[ password,shadow,group & sshd_Config...
Class 001 What is Kubernetes? K ubernetes is an Orchestration engine and open-Source Platform for managing containerized applications . Responsibilities includes Container Deployment, S caling & descaling of container & C ontainer load balancing . K ubernetes is not a replacement for Docker. Kubernetes can be considered as a replacement for docker swam . Kubernetes is significantly more complex than Swarm. Born in Google , written in Go/Golan. Donate to CNCF (Cloud Native Computing Foundation) in 2014. Kubernetes V1.0 was released on JULY 21, 2015. Current stable release v1.27 Kubernetes Features: Automated Scheduling. Self-Healing Capabilities. Automated rollout & rollback -------------------------- (Releasing a new version/Previous version). Horizontal Scaling & Load balancing. Autoscaling of PODS (Containers) Manual Service Discovered & Load balancing. (DNS) Storage Orchestration. Kubernetes Architecture: Kubernetes implements a cluster computing backgr...
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