OpenShift Architecture | K21Academy — Transcript

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1. 0:00hello everyone welcome back to another
2. 0:02session by k21 academy today our expert
3. 0:06trainer will be talking about openshift
4. 0:08architecture so let's get into the
5. 0:11learning so everybody knows about the
6. 0:13kubernetes cluster what is there in the
7. 0:14kubernetes cluster guys you have
8. 0:17master nodes
9. 0:19and as well as you have something called
10. 0:21as worker nodes
11. 0:25okay so where do we
12. 0:28deploy our workload is it on the
13. 0:32masternode or worker nodes
14. 0:34it is on
15. 0:36worker nodes guys right
16. 0:39so
17. 0:40this is your kubernetes cluster right
18. 0:42we will not go into the detailing of it
19. 0:45so same same
20. 0:47same thing like this guys we have
21. 0:49uh in the open shift you required
22. 0:52nodes to deploy loads to deploy the
23. 0:55workload
24. 0:56you require master node
25. 0:59so same same to same thing is available
26. 1:01in the openshift cluster also you see
27. 1:03this diagram guys
28. 1:05right can you see you have a master node
29. 1:06here
30. 1:09and you have this worker nodes where
31. 1:11ports are deployed
32. 1:13you have mongodb pod or you have apache
33. 1:16or tomcat or mysql whatever it is it is
34. 1:18there
35. 1:19but one thing you should uh see here
36. 1:21guys that is change something like that
37. 1:23they are saying you can use only rhel or
38. 1:26atomic
39. 1:30this this is not available on the other
40. 1:32uh
41. 1:33platforms right guys it is available on
42. 1:35this one either you can deploy on the
43. 1:37centos but it was supported little bit
44. 1:39earlier now you need to you deploy the
45. 1:42rhel
46. 1:43or atomic operating system what is this
47. 1:45atomic operating system
48. 1:50that is red hat core operating system
49. 1:52guys rhcos red hat core operating system
50. 1:57now this radar core operating system is
51. 2:00a operating system which is used by the
52. 2:02openshift
53. 2:03and interestingly
54. 2:05you cannot modify this
55. 2:07it is immutable
56. 2:10so whatever you deploy on the top of
57. 2:12this one it will be deployed on the red
58. 2:14hat
59. 2:15this is one of the feature guys in the
60. 2:16kubernetes which were some of some
61. 2:19people were deploying the kubernetes on
62. 2:20the linux red hat linux somebody is
63. 2:22deploying on the same device somebody's
64. 2:24deploying in the ubuntu
65. 2:26so support was not there from the red
66. 2:28hat operating as because these are the
67. 2:30all open source team right
68. 2:32and as a proper enterprise level support
69. 2:35was not available with that particular
70. 2:39operating systems but with this uh with
71. 2:41this particular red hat core operating
72. 2:43system and if you are deploying your
73. 2:44application as
74. 2:46on the open shift red hat supports you
75. 2:48use the support for okay to the
76. 2:50enterprise level applications
77. 2:52so we have one you can deploy your
78. 2:54openshift
79. 2:55nodes or master node on the red hat
80. 2:57enterprise linux operating system or it
81. 2:59is called as another operating system
82. 3:01called as it is called as atomic
83. 3:02operating system but nothing but
84. 3:04rhcos
85. 3:05core operating system so this is one of
86. 3:07the major thing major change you can see
87. 3:10from the
88. 3:10uh
89. 3:11kubernetes uh
90. 3:14cluster environment and the openshift
91. 3:16environment you will find these
92. 3:17operating systems which are immutable
93. 3:20so you cannot modify it you cannot take
94. 3:22a control of the operating system guys
95. 3:24kubernetes openshift will manage it for
96. 3:27you
97. 3:28and you can deploy this all the you can
98. 3:30deploy the parts on this node and you
99. 3:31have a master nodes here but
100. 3:34and yes you have
101. 3:36these layers
102. 3:39similar like your kubernetes platform
103. 3:41you you can deploy it on the physical
104. 3:43virtual private public cloud
105. 3:46you have a service layer to expose the
106. 3:48application to the outside
107. 3:50like the service which we have created
108. 3:51we we have seen
109. 3:53like
110. 3:54a load balancer service or not port
111. 3:56service or cluster ip service this is
112. 3:59also available inside this kubernetes
113. 4:01inside the openshift container platform
114. 4:03but on the top of that they have come up
115. 4:05with the one nice
116. 4:06ingress controller stuff
117. 4:09additional
118. 4:11routing layer so in the kubernetes you
119. 4:13need to deploy the ingress controller
120. 4:15separately
121. 4:17so that
122. 4:18multiple so that
123. 4:20traffic can be diverted to the different
124. 4:22applications
125. 4:23in openshift
126. 4:25this comes
127. 4:26in built okay you can use hf they are
128. 4:29using h a proxy h a proxy as a ingress
129. 4:32controller here
130. 4:35right so what happens with the help of
131. 4:37there is a service layer but on the top
132. 4:39of that you have a ingress controller
133. 4:41such as your one routing layer and this
134. 4:43routing layer helps you too
135. 4:46routing layer is very closely integrated
136. 4:48with your dns services so that it will
137. 4:51directly generate one link for you
138. 4:54and you can access the application
139. 4:55directly so just give the code developer
140. 4:58will give the code
141. 5:00there are a lot of ci cd and automation
142. 5:01tools are there
143. 5:02okay you can integrate that with these
144. 5:04particular nodes and finally you will
145. 5:06get the one nice link which you can give
146. 5:08it to the customer
147. 5:12and additionally you have persistent
148. 5:13storage so if you understood the
149. 5:14kubernetes this is very easy to
150. 5:17understand but if you don't if you if
151. 5:19you are not aware about this one guys
152. 5:20don't worry this is not difficult to
153. 5:22understand so this is the this is the
154. 5:25data plane where your containers will be
155. 5:27hosted and this is the master node which
156. 5:30will manage this
157. 5:32worker
158. 5:34it is almost same to same architecture
159. 5:36available but with routing layer is
160. 5:38there
161. 5:39additional services are there
162. 5:41and
163. 5:42these are the some of the ci cd pipeline
164. 5:44can be integrated easily with this
165. 5:46openshift platform
166. 5:49okay friends and
167. 5:51let me just
168. 5:54take you to the one more architecture
169. 5:56which will help you to understand yes
170. 6:00so same thing but little bit at higher
171. 6:02side you can say
172. 6:04uh look at this
173. 6:07you have this
174. 6:09uh infrastructure you can deploy this
175. 6:11open shift on your physical machines
176. 6:13virtual machines
177. 6:15private cloud you have cloud native
178. 6:16services also
179. 6:19then on the top of that container run
180. 6:20timing engine is running
181. 6:23it provides networking storage
182. 6:25registry is one thing which is not
183. 6:27available in the kubernetes level
184. 6:29it has its own registry guys
185. 6:32where you can it will store the images
186. 6:35we can create a logs it also has a log
187. 6:38and metrics and security features
188. 6:40so you have container orchestration and
189. 6:42cluster management on the top of that
190. 6:44application lifecycle management is also
191. 6:46done you have build automation
192. 6:48deployment automation service catalog is
193. 6:50there
194. 6:51self services then on the top of that
195. 6:52you can have a containers running
196. 6:54so yes guys you have
197. 6:56almost everything but integrated with
198. 6:59lot of other services too
199. 7:02okay
200. 7:03so what are the features of
201. 7:04openshift
202. 7:06so
203. 7:07yes it does give you the high
204. 7:09availability
205. 7:10it is a it is using a lightweight
206. 7:12operating system called as rhel core os
207. 7:16it provides you the load balancing it
208. 7:18does the automatic scaling for you
209. 7:20logging and monitoring services are
210. 7:22present
211. 7:24you it is very easy to do the service
212. 7:26discovery you have integrated storage
213. 7:28boxes storages are available like all
214. 7:31classes and everything application
215. 7:33management and you can also do the
216. 7:34cluster accessibility and along with
217. 7:36that you see here you have rh
218. 7:39rh cos
219. 7:41container engine is there on the top of
220. 7:42that cube and it is there
221. 7:44and on the top of that you have a
222. 7:45cluster services such as
223. 7:49over the air updates
224. 7:51that is called as ot
225. 7:54and
226. 7:54you have monitoring registry
227. 7:57networking routers
228. 7:59routing mechanism everything is
229. 8:01integrated as a cluster services here
230. 8:03and on the top of that as a platform
231. 8:05services or application services and
232. 8:07developer services you can integrate
233. 8:09that inside the radar openshift platform
234. 8:12such as service mesh
235. 8:15that is for serverless builds right ci
236. 8:18cd pipeline full stack logging
237. 8:20okay for the application you have
238. 8:22databases runtimes
239. 8:24lot of things are there guys you have
240. 8:25also code ready workspaces you can use
241. 8:28that um
242. 8:30space to develop your code inside the
243. 8:33openshift container platform only guys
244. 8:35you have ids and everything is plugged
245. 8:38in okay and so that is why it's really
246. 8:42really beautiful so it use the container
247. 8:44engine so kubernetes engine and on the
248. 8:46top of that
249. 8:47it is
250. 8:48deploying your containers
251. 8:50along with the
252. 8:51lot of management tools
253. 8:55so this is actually a internal
254. 8:57architecture of the openshift guys if
255. 8:58you see
256. 9:00this is your uh
257. 9:02huber net is right i know that everybody
258. 9:04you know most of you know about it right
259. 9:05kubernetes it has master not cube api
260. 9:09server is there controller manager is
261. 9:10there shadow there is their etcd cubelet
262. 9:12is there and your container engine
263. 9:16and what is the other parameters they
264. 9:18have added from the openshift so they
265. 9:20have taken in this kubernetes as it is
266. 9:22but they have created their own api
267. 9:24server so cube api server and the open
268. 9:26shift api server talk to each other
269. 9:30and as well as you get a authentication
270. 9:32oauth is there some other authentication
271. 9:34is also there and similar like cube
272. 9:37controller manager we have openshift
273. 9:38controller manager too
274. 9:40and one more additional feature which is
275. 9:42also available on the
276. 9:44uh your kubernetes that is called as a
277. 9:46core dns
278. 9:48but here this little bit core dns is
279. 9:50quite interesting
280. 9:52uh
281. 9:53it it closely monitors the dns features
282. 9:55in the openshift because
283. 9:57it requires for the hf proxy in this
284. 9:59controller
285. 10:02so this is actually you should uh
286. 10:05think about this architecture this is
287. 10:07important
288. 10:09so
289. 10:10the way we deploy the uh application in
290. 10:13the kubernetes by using the power
291. 10:16same thing is here in the open sheet
292. 10:19we deploy the application by using the
293. 10:20deployment
294. 10:21same thing is in the openshift but there
295. 10:23is one more thing that is called as a
296. 10:24deployment config
297. 10:26deployment is also there deployment
298. 10:28config is also there
299. 10:30additional object
300. 10:32so guys this was our expert from team
301. 10:35k21 academy
302. 10:37and if you could not understand anything
303. 10:40or if you want to dive deeper in the
304. 10:42topics discussed then we have something
305. 10:44really special for you
306. 10:46we have our free class on openshift for
307. 10:49beginners
308. 10:50and under this free class you'll be
309. 10:52learning about what is red hat openshift
310. 10:55why openshift skill is in demand
311. 10:58openshift architecture its components
312. 11:00and what not
313. 11:02so let me just give you a walkthrough as
314. 11:04how you can register for this free class
315. 11:07all you have to do is just log on to
316. 11:09k21academy.com forward slash
317. 11:13zero openshift02 and you'll be seeing
318. 11:14this kind of interface you just have to
319. 11:16click on book your free seat now
320. 11:19select and event date enter your name
321. 11:21your email address your phone number and
322. 11:23click on yes save my seat after that
323. 11:26you'll be seeing this kind of url so you
324. 11:28just have to save that url add it to
325. 11:30your calendars and i'll see you in the
326. 11:32free class till then keep learning