Kubernete Learning Process

0 - Spin-up AWS cluster
	- https://kubernetes.io/docs/getting-started-guides/aws/
	- https://github.com/hjacobs/kubernetes-on-aws-users
	- https://github.com/kubernetes/kops/blob/master/docs/aws.md
		-	https://medium.com/cloud-academy-inc/setup-kubernetes-on-aws-using-kops-877f02d12fc1
		-	https://github.com/kubernetes/kops
	- https://github.com/aws-samples/aws-workshop-for-kubernetes 
	- https://github.com/kubernetes/kops/blob/master/docs/networking.md
	- https://github.com/zalando-incubator/kubernetes-on-aws
	- https://github.com/kubernetes-incubator/kube-aws
	
1 - Controllers
	- Whatches the state of nodes via kube-api and when notified acts to change node
	state to the desired state
2 - Services	
	- Are used to expose pods. we have 3 diferent types:
		- ClusterIP (Which is accesseble only inside the cluster)
		- NodePort Which binds a specific port and same port for all pods even in  			diferent nodes to a specif port Externally acessible)
		- LoadBalancer which is Externally accessible loadbalance all requests
3 - Services Account
4 - Ingress
	- Allows incoming requests, Repleces the Loadbanlancer 
	- https://github.com/zalando-incubator/kube-ingress-aws-controller
	- https://github.com/kubernetes-incubator/external-dns/
4.1 - Namespace
	- Separates logically the node into diferent namespaces or partitions
4.2 - Quotas
 	- Allows to allocate a pecific amount of resources from a cluster to a Namespace , Group, User.
5 - Deamon Sets
	- Deploys a specific Pod to a node. Keeps the same number of pod from one kind as 		the number of Nodes. Use cases (Logging, Monitoring ...)
6 - Jobs
6.1 - Drawing a Node
	- Remove all data and pods gracifully  from a node which you wanna kill
6.2 - Pet Sets
	Provide a static host to a Pod. Use Case (Clusterize a application inside the cluster Ex.: cassandra, ElasticSearch)	
6.3 scheduller
7 - Depoyment Manifest
	- It is a yaml definition of how our deploy gonna be. It is the best way to manage 		applications in the cluster
8 - Pods Manifests
	 - It is a yaml definition of how our Pod  gonna be.
9 - Services Manifests
	 - It is a yaml definition of how our Services gonna be. See Services
9.1 - Secret
	- Used to inject passwords as private keys into a pod
9.1 - Config Maps
	- Used to inject configurations to a pod
10 - Stateful Applications
	- Applications wich keeps state. Ex.:  Database
11 - Stateless Applications
	- Applications that do not need to keep state
12 - Storage and Persistence
	- A Storage like ebs from AWS
12.1 - Networking
	Allows comunication pods to pods. There are 3 types
		- Flat Network (Route Tables) AWS with a limitation of 50 nodes into cluster.
		- CNI Calio and Waeve
		- Overlay
13 - Helm and Charts
	- Helm is a tool for managing Kubernetes charts. Charts are packages of 
		pre-configured Kubernetes resources.
14 - sppinaker
	- perform CI/CD
15 - CD/CI
16 - kubeadm
17 - HA Applications
	- High Avability application. For kubernates in recommended have 3 masters and 3 - 5 htcd nodes
18 - Auto Scalling
	- https://github.com/kubernetes/autoscaler/blob/master/cluster-autoscaler/cloudprovider/aws/README.md
	- i have k8s cluster by kops on aws. i have to install a few add-ons(external-dns, ingress controller and kube-lego) by helm
19 - Dicorverability
20 - Logging 
	- https://www.fluentd.org
21 - Health Check
	- Probe readiness
	- Probe liveness
22 - Monitoring
	- APM Elastic
	- Heapester
	- cAdvisor
	- Graphana
23 - Dashboards
	- https://github.com/kubernetes/dashboard/wiki/Accessing-Dashboard---1.7.X-and-above
24 - Save Money (Sass K8 solutions or pay options)
	- https://aws.amazon.com/blogs/compute/kubernetes-clusters-aws-coreos-tectonic/
25 - Traine the a devops if needed
26 - How use minikube as local development
27 - Ansible
	- Automation ops functions
28 - AWS IAM Rules
	- https://github.com/uswitch/kiam
	- https://github.com/kubernetes/kops/blob/master/docs/aws.md#setup-iam-user


Docs

	- https://docs.google.com/document/d/1x4DI30Q3YI8Sr3x4XNZ3dcjISL1rj2KbVnM1ld5S4KA/edit