This document discusses composite cloud applications and portable topologies. It covers the business drivers for continuous delivery and microservices, including the limitations of monolithic applications. Containers and federated clouds allow for increased portability and composability. Service templates can be used to define portable application topologies that can be deployed across different infrastructure layers and cloud vendors. Dynamic composition of applications and services using templates is a vision for the future that is still maturing. Service templates combined with containers allow both legacy and modern applications to be modernized and made portable.

1. Composite Cloud Applications and Portable Topologies
Vinothini Raju
CEO @ Bluemeric Technologies
@vinothiniraju

2. Agenda
01
02
03
Composite Cloud / Modern Application
Portability & Composability
Portable Topologies
Business Drivers Continuous Delivery(CD) Monolithic App Limitations
Microservices Containers Federated Clouds
√ + +
+ + +
Importance of portability for CD Current portability scenario
New Portability Paradigm Composability
√ √
√ √
Service Templates Modernising Legacy App Modern Application delivery√ √
01
√

3. Optimizing Operational Cost01
02
03
Modern Application Delivery
Portability & Composability
Portable Topologies

4. 01
Business Drivers for increased release velocity
Inside Out (Business Driven)
- Multi-channel delivery
- Hot patches
Outside In (Market Driven)
- Market Dynamics & Competition
- Reconfigurable operational functions, processes and services
+
+

5. 01
Continuous Delivery for release velocity
• 2 – 8
segments
Architect
Package
Deploy
Isolated
+Incremental Updates
+Roll backs
Reusable Services
Portable
+ Different Dev, Test
& Production platforms
Elastic
+ Auto provision/ deprovision
Polyglot
team

6. Application container
CRM Monolithic Application
Order Processing Accounts
management
Check customer status
Check credit status
Check order status
Check customer status
Check credit status
Check Inventory
Create Invoice
Customer CreditInventory Order Invoice
DatabaseApplicationModules
Business
Processes
Service
Management
Check customer status
Check service status
Service
Run time
VM

7. 01
Continuous Delivery - Monolithic App Limitation
• 2 – 8
segments
Architect
Package
Deploy
Tightly integrated
- Updates & rollbacks require
complete application
deployment
Portable
+ Different Dev, Test
& Production platforms
Auto-provision
- Provisioning VMs not optimal
Deeper
application
knowledge

8. 01
Agile Continuous Delivery
• 2 – 8
segments
Architect
Package
Deploy
Microservices
Containers
Cloud

9. Interoperable
Isolated processes
Smart app, dumb pipes
Agile SOA - Microservices
Micro
Mega
Mono Poly/distributed
microservices
Integrate
Slice
+
+
+
businessresponsibility

10. Containers
Can be reused, stacked & composed
Easy to pack without adjusting the
component to fit
Suitable for increased delivery volumes
+
+
+
Application
Data
Runtime
Middleware
OS
Virtualization
Server
Storage
Networking
What it can pack & compose ?
Rightfrommiddleware

11. PaaS
Federated Cloud
Cloud is about infinity
Hybrid is about flexibility
Federation is about variety
External Services
IaaS
Federated Cloud
+
+
+

12. Create invoice
Refactored CRM App
Check customer status
Check credit
Check Inventory
Check order status
SaaS
PaaSIaaS
Reusable Components
Independently testable
Integrates with external services
Different components hosted on different clo
Granular scaling
Order Processing
+
+
+
+
+
Accounts management
Customer Data Service
Credit Data Service
Inventory Data Service
Invoice Data Service
Order Data Service
Service Broker
Service Request Management

13. Optimizing Operational Cost01
02
03
Modern Application Delivery
Portability & Composability
Portable Topologies

14. Importance of portability for CD
D
esign
D
evelop
Test
D
eploy
PaaS
Local
IaaS
IaaS
Simulate production like env
Flexible Development env (Mac
OSX, Windows, Linux)
+
+

15. Portability & Composability so far …
Portability Image Infrastructure Scalability,
HA, Security
& Monitoring
policies
Application Composition
Image based Modified Provisioned Provisioned &
Configured
Modified Static
Application
based
NA Provisioned Provisioned &
Configured
NA Deployment
Application
(across PaaS)
NA Auto-
Provisioned by
PaaS
Provisioned &
Configured
Modified Partially
dynamic

16. Portability - A new paradigm
PaaS / Application
IaaS / Platform
Operating Systems
AcrossCloudLayers
Across Vendors
Portability
Composability

17. 17
Compositions are maturing
static
deployment
dynamic
Packaging
Deployment
Run time

18. 01
Dynamic composition
is a great vision of a
distant future.

19. Optimizing Operational Cost01
02
03
Modern Application Delivery
Portability & Composability
Portable Topologies

20. TOSCA Service Template with Docker
Interfaces
Start()
Start.sh
Docker Images Install Script
Requires
Capability: WebApplication
Stop()
NodeType

21. 21
web:
build: our.repository.host/
web:prod
ports:
- "8080:8080"
links:
- postgres
- payments
- catalog
payments:
build: our.repository.host/payments:prod
ports:
- "8081:8080"
postgres:
image: our.repository.host/postgres:prod
expose:
- "5432"
Docker hub
Docker compose
db:
type: external
host: 1.2.3.4
port: 5432
environment:
POSTGRES_USER:
produser
POSTGRES_PASSWORD:
prodpass
Future:
(add services run time)
named containers
—env / env-file
—link
catalog:
build: our.repository.host/catalog:prod
ports:
- "8082:8080"
links:
- postgres

22. Modern Application Lifecycle
D
esign
D
evelop
Test
D
eploy
PaaS
Local
PaaS
IaaS
IaaS
Service
Template

23. Modernizing legacy applications
UnContainerize
Containerize
+
+
Service
Templates
Portable Application
Can be composed along
with micro services
+ Monolithic

24. 01 Thanks !
@vinothiniraju
http://bluemeric.com