Create Ec2 ubuntu instance (freeetire) in AWS Copy the permissions keys to local Open putty key load and generate private key Open Putty and browse the private key and login to the ubuntu instance Auto logged in with no credentials Install docker https://docs.docker.com/engine/install/ubuntu/ sudo apt install apache2 sudo apt-get install git Install Ansible:sudo apt-add-repository ppa:ansible/ansible Log into the Ubuntu Server that will host Ansible Install the necessary repository with the command sudo apt-add-repository ppa:ansible/ansible. Update apt with the command sudo

1. What are the 10 features of Kubernetes? 1.Storage Orchestration 2.Service discovery and load balancing 3.Automated rollouts/roll backs 4. Self healing 5. Automatic bin packaging 6. Secret &config management 2. Master Node components 1.Kube-controller – controller of ontrollers (node/endpoints/namespaces) 2. Schedular – Assign work to nodes 3.Api server – Front end to control plane 4.Cluster store – 3. Worker node components 1.Kubelet 2.namespace 4. How Kubernetes works? It will work through Master and worker node. If we have 4 master

What are the 10 feature of Kubernetes? Kubernetes can schedule and run application containers on clusters of physical or virtual machines. Kubernetes provides the infrastructure to build a truly container-centric development environment. Kubernetes can speed up the development process by making easy, automated deployments, updates (rolling-update) and by managing our apps and services with almost zero downtime. It also provides self-healing. Kubernetes can detect and restart services when a process crashes inside the container. Kubernetes is originally developed by Google,

Assignment#1

10 features of kubernetes Automated SchedulingSelf-Healing CapabilityAutomated rollbackLoad BalancingEnvironment consistencyBest resource utilization MonitoringAuto-scalable infrastructure How Kubernetes works? K8S treats all the machines in a cluster as a single pool of resources.K8S takes up the role of a distributed operating system by effectively managing the scheduling, allocating the resources, monitoring the health of the infrastructure, and even maintaining the desired state of infrastructure and workloads. What are the components of Master? –> ApiServer, Cluster Store, Controller & Scheduler What are the

Benefits of Kubernetes Speed of the deployment Ability to absorb the change quicky Ability to recover quickly Hide complexity in Cluster Storage Orchestration Secret and config management Automatic bin packing Self healing Automated roll outs and rollbacks Service discovery and load balancing How does Kubernetes works ? What are the components we have in K8’s Master ? kube-apiserver – It acts as front end control panel, Consumes JSON files and Exposes the REST API’s Clster Store(etcd) – It persistent the

Features of containers  collection of containers Replication Controller Storage Management Resource Monitoring Health Checking Networking Helm Charts POD Distrubution Cluster Federation How kubernates works? Kubernetes supports several base container engines, and Docker is just one of them. The two technologies work great together, since Docker containers are an efficient way to distribute packaged applications, and Kubernetes is designed to coordinate and schedule those applications. What are the components in master? API Server Scheduler Controller Manager etcd Kubelet Kube-proxy What are

Assignment1 – How Kubernetes works Kubernetes can manage Container Orchestration, Work load Placement, manage Infrstructure, Desired state. It has Self Healing, Automated Roll back, Auto Scaling and load balancing It can host multiple Docker containers Assignment2 – What are the components of Kubernetes Master? Master has four softwares API Server Cluster Storage Controller Storage Scheduler Assignment3 – What are the components of Worker? Workers has 3 Applications for worker Kubelet Kube proxy Container Engine Assignment4 – What are the components

10 Benefits/features of Kubernetes Container Orchestration Desired State Workload distribution Self healing Capabilities Automated Rollbacks Auto Scaling Load balancing Environment consistency for development through production Automated Scheduling Speed of deployment Ability to absorb change quickly Ability recover quickly Hide complexity in the cluster Bin packing Resource utilization Secret and config management How Kubernetes works UI or CLI interacts with Kubernetes Master’s (Control Plane) API server. API servers connectts with Controller and etcd for controller allocation and storing the requests. Then

By Hemanth What are the 10 feature of Kubernetes? How kubernetes works? What are the components of Master? What are the components of Worker? What are the components of Workstation?

What are the 10 feature of kubernetes? –  optimizes the utilization of resources like CPU and memory through containers allow for efficient distributions of applications across a cluster of nodes Its a tool or platform which focuses on deploying and scheduling containers inside the infrastructure instead of directly utilizing nodes/hosts. Container grouping using pod Self-healing Auto-scalablility DNS management Load balancing Rolling update or rollback Resource monitoring and logging How kubernetes works? – Kubernetes keeps track of your container applications that are

Step 1 – Register a site to POST Assigment and Share with Trainer and For Self Notes Step 2 – Pre Test using LMS Login to https://www.devopsschool.com/lms/ using any gmail account Try this quiz – https://www.devopsschool.com/lms/mod/quiz/view.php?id=250 Send a results to shiva@palmeto.co.in Step 3 – Install Docker Engine in Centos#1 Vm. Step 4 – Assignment#1 Create a Ubuntu containerdocker run -it ubuntuIt will fetch the ubuntu docker image from docker hub and you will be connected to container in detached mode.

Docker lab -Deep Step 1 – Register a site to POST Assigment and Share with Trainer and For Self Notes – How to register? – https://www.bestdevops.com/wp-login.php?action=register # Check Inbox SPAM box for Activation Email. – How to login? – https://www.bestdevops.com/wp-login.php – How to write post? – https://www.bestdevops.com/wp-admin/post-new.php – How to check your Post? – https://www.bestdevops.com

Install Docker Engine in Centos#1 Vm. Verification : Assignment #1 Assignment #2

Install Docker Engine in Centos#1 Vm. Verify docker installation Assignment#1 Create Ubuntu Container Attaching to the container and Install Update, git & apache2 in ubuntu container Run git command in container from outside Assignment#2 Create a httpd container exposed at 8080 port Access(curl) container from node Assignment#3 Create an image with base – centos and git must be installed in it Push a docker image to hub.docker.com https://hub.docker.com/r/swetha97/test21/tags?page=1&ordering=last_updated

Install Docker Engine in Centos#1 Vm. [root@localhost ~]# history1 ifconfig2 sudo yum install -y yum-utils device-mapper-persistent-data lvm3 udo yum-config-manager –add-repo https://download.docker.com/linux/centos/docker-ce.repo4 sudo yum-config-manager –add-repo https://download.docker.com/linux/centos/docker-ce.repo5 sudo yum install –y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.r6 sudo yum-config-manager –enable rhui-REGION-rhel-server-extras7 sudo yum install -y docker-ce8 sudo yum install docker-ce9 docker -v10 – Enable Docker11 Start Docker12 Start Docker13 start docker14 sudo systemctl enable docker15 sudo systemctl start docker16 history Verification. root@720751c45f2c:/# ps -eaf | grep dockerdroot 3672 1 0 13:38 pts/0 00:00:00 grep –color=auto dockerd [root@localhost