Microservice

Concepts & Theory

1. What is a service?
2. Monolithic arch
   1. pros and cons
3. Microservice arch
   1. pros and cons
4. Monolithic vs Microservice
   1. deployment, scalability, reliability, development, flexibility, debugging
5. Security
6. Cloud computing
   1. Public IP address
   2. On-premises
   3. Iaas, Cass, Pass, Faas (Server less computer), Saas
   4. Private could
   5. Hybridge cloud
7. Scaling
8. Blue Green Deployment
9. Cloud Native vs Cloud Ready
10. Event-Driven Architecture
    1. Event producer
    2. Event broker
    3. consumer
    4. pub/sub
    5. eventual consistency
    6. cache layer
    7. idempotent
11. 12 Factor App
    1. Codebase
    2. Dependencies
    3. Config
    4. Backing services
    5. Build, release, run
    6. Processes
    7. Port binding
    8. Concurrency
    9. Disposability
    10. Dev/prod parity
    11. Logs
    12. Admin processes
12. Load balancing
    1. Round robin
    2. Least connection
    3. IP hash
13. Service Registry
14. Failed fast
15. Service Discovery
16. Tools
    1. os
    2. language
    3. api management
       1. postman
    4. messaging
       1. kafka
       2. rabbitMQ
    5. toolkits
       1. fabric8
       2. seneca
    6. orchestration
       1. kubernetes
       2. Istio
    7. monitoring
       1. prometheus
       2. logstash
    8. serverless tools
       1. claudia
       2. AWS lambda
17. Principles behind microservices
    1. Independent and autonomous service
    2. Scalability
    3. Decentralisation
    4. Resilient services
    5. Real time load balancing
    6. Availability
    7. CICD
    8. Continuous monitoring
    9. Seamless API integration
    10. Isolation from failures
    11. Auto provisioning
18. Security
    1. Defence in depth mechanism
    2. Token and API gateway
    3. Distributed tracing
    4. First session
    5. Mutual SSL
    6. OAuth
19. API gateway
    1. client performance
    2. security
    3. rate limiting
    4. monitoring logging
    5. BFF
20. SOA vs Microservices
21. Communication
    1. Types
       1. synchronous blocking communication
       2. asynchronous non blocking communication
    2. Request response
       1. REST over HTTP
       2. RPC
    3. Event driven
       1. kafka

Design Patterns

1. need?
2. Aggregator
3. API gateway
4. Chained or chain of responsibility
5. Asynchronous messaging
6. Orchestration vs Choreography
7. Database pattern
   1. Database Per Service
   2. Shared Database
8. Event sourcing
9. Branch
10. Multi-tenant
    1. pros and cons
11. CQRS
12. Circuit breaker
13. SAGA
    1. Choreography
    2. Orchestration
14. Decomposition
    1. Vine or Strangle
15. Database
    1. Decentralised Data Management
       1. pros and cons
    2. Data Consistency in microservice
       1. Saga Pattern
       2. Event-Driven Architecture
       3. CQRS
       4. Idempotent Operations
       5. Consistency Models
    3. Database per Microservice
    4. Shared Database
    5. Data Virtualization
    6. Distributed Data Mesh
16. CI/CD
    1. Github actions
    2. pros and cons
    3. running in parallel
    4. Testing
       1. unit tests, integration tests, and end-to-end tests.
    5. Artefact Repository
       1. JFrog
17. Github actions
    1. Workflows
    2. Events
    3. Jobs
    4. Actions
    5. Runners
    6. Using variables in your workflows
    7. Sharing data between jobs
       1. artefacts
          1. actions/download-artifact
    8. Literals
    9. Contexts
       1. uses
       2. Context availability
       3. github context
       4. env context
       5. var context
       6. job context
    10. Polyglot Persistence
18. - commands
    1. name
    2. on
       1. push
          1. branches
    3. jobs
       1. needs
       2. steps
       3. uses
       4. with
       5. run
       6. if
       7. matrix
       8. outputs
19. Transactions in microservice
    1. Two-phase commit
       1. voting phase
       2. commit phase
       3. pros and cons
    2. SAGA
       1. backward recovery
       2. forward recovery
    3. correlation id
    4. imp of logging and monitoring