Zero to Kubernetes — Developer's Gym Singapore

You've heard of Docker and Kubernetes, and you can tell that they are the next big thing to learn.

You want to master Kubernetes, but where should you start?

Enter Zero to Kubernetes: a step-by-step course on how to architect, develop and deploy applications in Kubernetes.

This course walks you through the full path from coding an application to deploying it to a production-grade Kubernetes cluster.

## You will learn how to

- Write a note-taking application in Node.js or Java
- Package the app as a Docker image
- Deploy the containerised application to a local Minikube cluster
- Refactor your application to make it stateless and scalable
- Deploy the improved application to a production-grade Kubernetes cluster on AWS

## This workshop is for

- Docker and Kubernetes beginners
- Developers who build and architect cloud-native applications
- DevOps and system administrators

## Prerequisites

- Java or Node.js installed
- Minikube and kubectl
- Docker
- Git, curl

This workshop is Windows, macOS and Ubuntu friendly.

You will be using the Learnk8s Academy for this workshop. You will need a valid email address to access the content.

https://learnk8s.io/academy

## About the trainer

Daniele is an instructor at Learnk8s, where he teaches Kubernetes and containers to small and large enterprises.

Transcript

1. Zero to Kubernetes 01
2. Knote
13. 
16. Architecture
17. App Architecture
18. App Database Architecture
19. App Database Storing files Architecture
22. boot
23. boot
24. boot
25. boot Render static pages
26. boot Render static pages Upload files
27. boot Render static pages Upload files Connect to the DB
28. boot Render static pages Upload files Connect to the DB Users and authentication
29. boot Render static pages Save documents Upload files Connect to the DB Users and authentication
30. boot Render static pages Save documents Upload files Connect to the DB Users and authentication
31. Packaging
35. JS
36. JS
37. JS
38. JS
39. JS
43. it works …
44. it works … ON MY MACHINE
48. v0.8 v0.8
49. v0.8 v0.8 v0.10
50. v0.8 v0.8 v0.10 v0.11
51. v0.8 v0.8 v0.10 v0.11 v0.12
52. JS
53. JS
54. JS
55. Docker
56. > docker run docker cli docker daemon
57. > docker run CONTAINER docker cli docker daemon CONTAINER
58. Building containers Docker
59. ~$ cat Dockerfile FROM ubuntu RUN apt-get update RUN apt-get -y install figlet ~$
60. $ docker build -t app .
61. $ docker build -t app .
62. $ docker build -t app .
63. $ docker build -t app .
64. Running containers Docker
65. $ docker run -ti app
66. $ docker run -ti app
67. $ docker run -ti app
68. $ docker run -ti app
69. Your turn
70. Write the knote app Your turn
71. Write the knote app Connect to th DB Your turn
72. Write the knote app Connect to th DB Create the container Your turn
73. Write the knote app Connect to th DB Create the container Run it as a container Your turn
74. https://academy.learnk8s.io
86. Ready?
87. Steady
89. https://academy.learnk8s.io
90. Deploying knote in containers
98. Deploying knote in containers
99. boot
100. boot
101. boot
104. Challenges with containers at scale
105. boot
111. ?
113. Container orchestrators
114. Mesos
115. Kubernetes Nomad Mesos Kubernetes vs Nomad vs Mesos past 5 years
117. Datacentre as a single computer 01
119. MASTER
120. MASTER NODE NODE
125. Node 2 Node 1 Node 3
126. Node 2 Node 1 Node 3
127. Deploying to Kubernetes
129. Incoming traffic
130. Incoming traffic
131. Load balancer Incoming traffic
132. Load balancer front-end Load balancer backend Incoming traffic
133. Load balancer Load balancer front-end Load balancer backend Incoming traffic
134. Load balancer Load balancer front-end Front-end service Load balancer backend Backend service Incoming traffic
135. Load balancer Ingress Load balancer front-end Front-end service Load balancer backend Backend service Incoming traffic
136. Load balancer Ingress Pod 1 Pod 2 Load balancer front-end Front-end service Pod 5 Load balancer backend Backend service Incoming traffic
137. Ingress Pod 1 Pod 2 Front-end service Pod 5 Backend service Incoming traffic
138. Deployment resource
139. Ingress Incoming traffic Pod 1 Pod 2 Pod 3 Pod 4 Pod 5 Service
140. Ingress Incoming traffic Pod 1 Pod 2 Pod 3 Pod 4 Pod 5 Service DEPLOYMENT
141. Ingress Incoming traffic Pod 1 Pod 2 Pod 3 Pod 4 Pod 5 Service DEPLOYMENT
142. Ingress Incoming traffic Pod 1 Pod 2 Pod 3 Pod 4 Pod 5 Service DEPLOYMENT
143. Ingress Incoming traffic Pod 1 Pod 3 Pod 4 Pod 5 Service DEPLOYMENT
144. Ingress Incoming traffic Pod 1 Pod 6 Pod 3 Pod 4 Pod 5 Service DEPLOYMENT
145. Local cluster
147. Deploy 3 replicas, please
148. kubectl create -f deployment.yaml
149. $ kubectl kubectl cli
150. ~$ cat deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: app spec: selector: matchLabels: name: app template: metadata: labels: name: app spec: containers: - name: nginx image: nginx:1.7.9 ~$ _
152. ~$ cat deployment.json { "apiVersion": "apps/v1", "kind": "Deployment", "metadata": { "name": "app" }, "spec": { "selector": { "matchLabels": { "name": "app" } }, "template": { "metadata": { "labels": { "name": "app" } }, "spec": {
153. API SERVER
154. Your turn
155. Create a local cluster Your turn
156. Create a local cluster Deploy knote Your turn
157. Create a local cluster Deploy knote Deploy MongoDB Your turn
158. Create a local cluster Deploy knote Deploy MongoDB Verify the app works Your turn
159. https://academy.learnk8s.io
166. Ready?
167. Steady
169. https://academy.learnk8s.io
170. Scaling
171. Incoming traffic
172. Incoming traffic
173. Incoming traffic
174. Incoming traffic
175. Incoming traffic
176. Incoming traffic
177. Incoming traffic
178. Incoming traffic
179. Incoming traffic
180. Incoming traffic
181. Refactoring stateless
182. boot
183. boot
184. boot
185. KUBERNETES
186. knote KUBERNETES
187. knote KUBERNETES CREATE NOTE
188. KUBERNETES knote MONGO DB TEXT CREATE NOTE
189. knote MINIO MONGO DB KUBERNETES TEXT PICTURES CREATE NOTE