Sarasa Gunawardhana SarasaGunawardhana

## nodejs-service.yaml
apiVersion: v1
kind: Service
metadata:
  creationTimestamp: null
  labels:
    run: my-service-1
  name: my-service-1
spec:
  ports:
  - name: https

## nodejs-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    run: my-service-1
  name: my-service-1
spec:
  replicas: 1
  selector:

## nginx-deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  creationTimestamp: null
  labels:
    run: nginx
  name: nginx
spec:
  replicas: 3
  selector:

## pod-nginx.yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: nginx-01
  name: nginx-01
spec:
  containers:
  - image: nginx

## docker-compose.yml
#Sarasa Gunawardhana
version: "3.2"
services:
    database:
        image: mongodb:latest
        environment:
          - MONGO_DATA_DIR=/data/db
          - MONGO_LOG_DIR=/dev/null
        volumes:
          - /data/db:/data/db

## kubernetesVSDocker.csv

          
            Docker Swarm
            Kubernetes

            
              Developed by Docker Swarm
              Developed by Google

            
              Has a smaller community compared to Kubernetes
              Has a vast Open source community

            
              Has low fault tolerance
              Has high fault tolerance

            
              Easy to set up and fits well into Docker ecosystem
              Requires heavy setup

            
              Less extensive and less customizable
              More extensive and customizable

            
              Features automated internal load balancing through any node in the cluster
              Enables load balancing when container pods are defined as services

            
              Facilitates for quick container deployment and scaling even in very large clusters
              Provides strong guarantees to cluster states at the expense of speed

## nginx-pod.yaml
apiVersion: v1
kind: Pod
metadata:
  creationTimestamp: null
  labels:
    run: nginx
  name: nginx
spec:
  containers:
  - image: nginx

## kubeadm-normal.yaml
apiVersion: kubeadm.k8s.io/v1beta1
kind: ClusterConfiguration
kubernetesVersion: v1.14.3
apiServer:
  certSANs:
  - "do-dev-master.sarasa-dev.com"
controlPlaneEndpoint: ""
networking:
  podSubnet: 10.244.0.0/16

## kubeadm-config.yaml
apiVersion: kubeadm.k8s.io/v1beta1
kind: ClusterConfiguration #you will need to ensure they match the version of the Kubernetes control plane of kubectl and kubeadm
kubernetesVersion: v1.14.3
apiServer:
  certSANs: #Additional hostnames or IP addresses that should be added to the Subject Alternate Name section for the certificate that the API Server will use. If you expose the API Server through a load balancer and public DNS you could specify this with
  - 127.0.0.1
  - 157.180.200.132
  - do-dev-master.sarasa-dev.com
  extraArgs: # Add this section if you have setup default audit policy. if not, dont add this section
    authorization-mode: Node,RBAC

## install-on-all-node.sh
#!/bin/bash
## Generic installation on all nodes

sysctl -w net.ipv4.ip_forward=1
sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf
sudo sysctl -p /etc/sysctl.conf

swapoff -a
sed -i '2s/^/#/' /etc/fstab
	apiVersion: v1
	kind: Service
	metadata:
	creationTimestamp: null
	labels:
	run: my-service-1
	name: my-service-1
	spec:
	ports:
	- name: https
	apiVersion: apps/v1
	kind: Deployment
	metadata:
	creationTimestamp: null
	labels:
	run: my-service-1
	name: my-service-1
	spec:
	replicas: 1
	selector:
	apiVersion: v1
	kind: Pod
	metadata:
	creationTimestamp: null
	labels:
	run: nginx-01
	name: nginx-01
	spec:
	containers:
	- image: nginx
	#Sarasa Gunawardhana
	version: "3.2"
	services:
	database:
	image: mongodb:latest
	environment:
	- MONGO_DATA_DIR=/data/db
	- MONGO_LOG_DIR=/dev/null
	volumes:
	- /data/db:/data/db
	Docker Swarm	Kubernetes
	Developed by Docker Swarm	Developed by Google
	Has a smaller community compared to Kubernetes	Has a vast Open source community
	Has low fault tolerance	Has high fault tolerance
	Easy to set up and fits well into Docker ecosystem	Requires heavy setup
	Less extensive and less customizable	More extensive and customizable
	Features automated internal load balancing through any node in the cluster	Enables load balancing when container pods are defined as services
	Facilitates for quick container deployment and scaling even in very large clusters	Provides strong guarantees to cluster states at the expense of speed
	apiVersion: kubeadm.k8s.io/v1beta1
	kind: ClusterConfiguration
	kubernetesVersion: v1.14.3
	apiServer:
	certSANs:
	- "do-dev-master.sarasa-dev.com"
	controlPlaneEndpoint: ""
	networking:
	podSubnet: 10.244.0.0/16
	apiVersion: kubeadm.k8s.io/v1beta1
	kind: ClusterConfiguration #you will need to ensure they match the version of the Kubernetes control plane of kubectl and kubeadm
	kubernetesVersion: v1.14.3
	apiServer:
	certSANs: #Additional hostnames or IP addresses that should be added to the Subject Alternate Name section for the certificate that the API Server will use. If you expose the API Server through a load balancer and public DNS you could specify this with
	- 127.0.0.1
	- 157.180.200.132
	- do-dev-master.sarasa-dev.com
	extraArgs: # Add this section if you have setup default audit policy. if not, dont add this section
	authorization-mode: Node,RBAC
	#!/bin/bash
	## Generic installation on all nodes

	sysctl -w net.ipv4.ip_forward=1
	sed -i 's/#net.ipv4.ip_forward=1/net.ipv4.ip_forward=1/g' /etc/sysctl.conf
	sudo sysctl -p /etc/sysctl.conf

	swapoff -a
	sed -i '2s/^/#/' /etc/fstab