l2 Apps

Question 1

4 Pillars of Cloud Nativeness

Answer 1

Question 2

12factor-App

Answer 2

Question 3

Problems of dependency management

Answer 3

More problems:
Conflicting Versions in
dependencies / Diamond
dependency / Circular
dependencies
+ Unclear resolutionstrategies (based on
tool)
+ Shortest path?
+ Parallel installation?
+ Complex environments

• Review dependency graph
• Using Sandboxing for
  dependencies

Question 4

Backing Service

Answer 4

Externalize Services where applicable
* Storage
* Databases
* Messaging
* Identity Services
* Monitoring & Logging

Externalize your pain
- Storage is hard on scale
- Security is hard in an organization
- Inter-Application communication is complicated
Focus on business code you can develop and operate

Question 5

Stateless

Answer 5

Question 6

Native Images

Answer 6

GraalVM
Ahead-of-Time (AOT) Compilation is a process where the program is compiled into native machine code before execution, rather than at runtime. This contrasts with Just-In-Time (JIT) compilation, where code is compiled during execution, which is typical in traditional Java applications running on the Java Virtual Machine (JVM).

Question 7

Order of configurations

Answer 7

Question 8

horizontal scaling with 12factor app

Answer 8

Horizontal Scaling comes free of charge:
* No local state (see 6.)
* No shared state (see 7.)
* Relying on process management of system