This document discusses microservices architecture and related technologies like Docker and Kubernetes. It provides an overview of how microservices break up monolithic applications into independent, scalable services. It also describes how Docker containerizes services and how Kubernetes provides automation, scaling, and management of containerized services running across a cluster. Logging and monitoring services like ELK/EFK are also summarized as ways to aggregate and analyze logs from microservices.

1. Microservice
Environment
Zaw Than Oo

2. What are in microservices?

3. Monolithic
• Unscalable & Inflexible
• Block & slow continuous development
• Large & complex
Mobile Banking
Transfer Topup
Bill
Payment

4. Monolithic
• Unscalable & Inflexible
• Block & slow continuous development
• Large & complex
Mobile Banking
Transfer Topup
Bill
Payment
Instance 1
Mobile Banking
Transfer Topup
Bill
Payment
Instance 2
Mobile Banking
Transfer Topup
Bill
Payment
Instance 3

5. Microservices
Transfer Topup
Bill
Payment
Mobile Banking

6. Microservices
Transfer Topup
Bill
Payment
Topup
Bill
Payment
Topup
Mobile Banking

7. Microservices Architecture
Microservice
exp-layer proc-layer sys-layer
event
client
exp-1
exp-2
exp-3
proc-1
proc-2
proc-3
proc-4
proc-5
sys-1
sys-2
sys-3
sys-4
Third party
Others-1
Others-2
DB

8. Microservice
exp-layer proc-layer sys-layer
event
mobile-exp topup-proc
bill-
payment-proc
mpt-sys
telenor-sys
skynet-sys
mpt
telenor
5BB
skynet
5BB
mobile-app
Example

9. Microservice
exp-layer proc-layer sys-layer
event
mobile-exp
web-exp
topup-proc
bill-
payment-proc
transfer-
proc
account-
reg-proc
mpt-sys
telenor-sys
skynet-sys
mpt
telenor
DB
5BB
skynet
5BB
bank-fun-
sys
web-portal
mobile-app
Example

10. Microservice
exp-layer proc-layer sys-layer
event
mobile-exp
web-exp
merchant-
exp
topup-proc
bill-
payment-proc
transfer-
proc
account-
reg-proc
payment-
proc
mpt-sys
telenor-sys
skynet-sys
payment-sys
mpt
telenor
DB
5BB
skynet
5BB
bank-fun-
sys
web-portal
mobile-app
merchant
Example

12. service-1
Env
VM-1
service-2
VM-2
service-3
VM-3

13. service-1
Env
VM-1
service-2
VM-2
service-3
VM-3
service-1
VM-1
service-2
VM-2
service-3 service-1
VM-3
service-2 service-3
OR

14. service-1
Env
VM-1
service-2
VM-2
service-3
VM-3
service-1
VM-1
service-2
VM-2
service-3
VM
HOST OS
service
service-1
VM-3
service-2 service-3
OR
• manage infra
• resource allocation
• load balancing
lib

16. Lib/bin
Docker
Docker Daemon
service
Docker Container

17. Lib/bin
Docker
Docker Daemon
service
Docker Container
-tomcat
-hello.war
-JDK
-hello.jar

18. Docker & Microservices
VM-1
Cot-1 Cot-2 Cot-50 Cot-51 Cot-52 Cot-N. . . . . .
Hardware requirement
services
VM-2 VM-N. . .

20. Kubernetes
Automates processes
Self healing
Horizontal scaling
Service discovery & Load balancing
Storage orchestration
Secret & Config
Management

21. Kubernetes Cluster
Kubernetes cluster
VM / Node
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
Pod /
container
VM / Node VM / Node
Pod /
container
Minikube (testing and learning)

22. Kubernetes / Automates processes
mobile-exp Node-1
back-func-sys
transfer-proc
topup-proc
topup-sys
Node-2 Node-3
deploy
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys

23. Kubernetes / Self Healing
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys terminating

24. Kubernetes / Self Healing
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys terminating
topup-sys create new one

25. Kubernetes / Self Healing
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys
down

26. Kubernetes / Self Healing
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys
down
topup-proc
topup-sys

27. Kubernetes / Horizontal scaling
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys
transfer-proc
transfer-proc
• GUI / commend to scale up & down
• Base on CPU/resource

28. Kubernetes / Horizontal scaling
Node-1 Node-2 Node-3
Kubernetes cluster
mobile-exp
back-func-sys
transfer-proc topup-proc
topup-sys
transfer-proc
transfer-proc
loadbalancer

31. DevOps
build
upload deploy

32. DevOps
push Build docker image deploy
1

33. DevOps
push Build docker image deploy
push Build docker image push
Docker
registry
1
2
deploy

34. Docker registry
Hello.123
Hello.124
Hello.124
deploy
Diff

35. Docker registry
Hello.123
Hello.124
Hello.124
deploy
Docker registry
Hello.123
Hello.124
Hello.124
deploy
Diff

36. DevOps
- app
- circleci
- config.yml
- Dockerfile
1. push 2. event
3. build
4. build
5. push
package

37. DevOps
1. run single cmd 2. pull
3. deploy
manage
monitor
https://www.facebook.com/zawthan00/posts/10207465102983060
https://www.facebook.com/zawthan00/posts/10207569528713638

39. Log
cluster
pod
pod
pod
pod
pod
pod
pod pod
pod
pod
pod
pod
pod
pod
Physical
storage
mount

40. Log
cluster
pod
pod
pod
pod
pod
pod
pod pod
pod
pod
pod
pod
pod
pod
Physical
storage
mount
• EFK (Elasticsearch, Fluentd and Kibana)
• ELK (Elasticsearch, Logstash and Kibana)

41. Logging
ELK/EFL input
filter
output
Console, file, etc..
Console, file, etc..
print, zip, elasticsearch

42. Log Monitoring (EFK)
Pod-1
Pod-2
Pod-3
Pod-N
Other Serverstail docker console
log
Elasticsearch is a trademark of Elasticsearch B.V., registered in the U.S. and in other countries

43. Log Monitoring (ELK)
Pod-1
Pod-2
Pod-3
Pod-N
Other Serverstail docker console
log
Elasticsearch is a trademark of Elasticsearch B.V., registered in the U.S. and in other countries

44. Log Monitoring (ELK +
kafka)
Pod-1
Pod-2
Pod-3
Pod-N
Other Servers
publish
consume
push
monitor
Elasticsearch is a trademark of Elasticsearch B.V., registered in the U.S. and in other countries

45. Log Monitoring (ELK)
Pod-1
log4j
Pod-1
log4j
Pod-1
log4j
Pod-N
log4j
Other Servers
Socket / tcp
push
monitor
Elasticsearch is a trademark of Elasticsearch B.V., registered in the U.S. and in other countries

47. Thank You!