Dockercon Europe 2014 - Continuous Delivery leveraging on Docker CaaS
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Transcript of Dockercon Europe 2014 - Continuous Delivery leveraging on Docker CaaS
Continuous Delivery leveragingon Docker CaaS
@AdrienBlind, Société Générale
1 @AdrienBlind
Let’s push some context• Major CIB european bank, and so relying on a dense & complex
IT• Thousands apps & IT people• Dozen of thousands servers• A large technology stack
• IT split in two departments committed on different roles• Siloted build & operation of applications• Deliver infrastructure capabilities
@AdrienBlind
Ambition“Build a simple, agile & efficient IS in a
risk controlled environment”Carlos Goncalves, CIO
• Become a busines partner: generate more business value, adapt to change
• Reduce TTM, strengthen reliability• Introduced agility in our DNA for some years now (40% apps
covered)• Engage on continuous delivery practices from end-to-end:
involve Biz, Craftmanship, DevOps, Architecture for 50% of critical apps• Transform people (coaching, training) & toolset @AdrienBlind
Focus on delivery
• Promote DevOps practices• Feature teams engaged on the whole product
lifecycle• Automate infrastructure & application
deployments• Make environments ephemeral and elastic
@AdrienBlind
Leveraging on private IaaS cloud
• IaaS brings flexibility (on demand, self-service, pay-per-use)
• API centric: plug environment creation in continuous integration
• Post-configure with a conf. mgmt tools (infra as code)
IaaSCapacity (VM, Storage…)
@AdrienBlind
PaaSApp (code)
Leveraging on PaaS cloud
• Provide high-level building blocks: DBs, middlewares, etc.
• API-centric too
@AdrienBlind
IaaSCapacity (VM, Storage…)
PaaSApp (code)
CaaSApp container
Introducing CaaS cloud
@AdrienBlind
The container paradigm
« Self-sufficient artifact enclosing apps modules and subsequent system requirements »
Softwarefactories Cloud> <
@AdrienBlind
DevOps Roles shift
Apps team focuses on container’s content
Don’t care about where the container will run
Knows how to build the container and operate the app
“You build it, you run it!”
CaaS team concerned about external shape
Ignore how images are built
Knows how to operate huge amount of containers
@AdrienBlind
Rebuild vs Upgrade
Full stackVersioning
& idempotency
Patchvs
immutable
@AdrienBlind
• Extract data from the container• Leverage on applicative storage
services• OpenStack Swift, Ceph...• Hadoop, Cassandra, Elastic
Search...• Externalize on system storage
• Data containers• Host mounting points
Data consideration
@AdrienBlind
Architecture consideration• Trends
• Application deploiement frequency • Micro services• Commodity infrastructure
• High availability & scalability more and more embedded in apps. New emerging patterns:
• Stateless, design for failure, loose coupling, zero downtime deployment...
@AdrienBlind
Continuous Delivery chain
001101010011010110110101111101110101111010011
Environments
Binary repo.
CVS+Soft. factory
Developer
@AdrienBlindHow to handle subsequent infra conf ?
Continuous Delivery chain
001101010011010110110101111101110101111010011
Environments
Registry
CVS+Soft. factory
Developer
Ops
@AdrienBlind
Continuous Delivery chain
001101010011010110110101111101110101111010011
Environments
Registry
CVS+Soft. factory
Developer
Ops
@AdrienBlind
Continuous Delivery chain
001101010011010110110101111101110101111010011
Environments
Registry
CVS+Soft. factory
Developer
Ops
@AdrienBlind
Continuous Delivery chain
001101010011010110110101111101110101111010011
Environments
Registry
CVS+Soft. factory
Developer
Ops
@AdrienBlind
The CaaS provider• Internal / External offers consider brokering?• Key services
• Manage underlying IaaS (multihosts, multi-tenancy, system management, SLA...)
• Expose management API for containers and handle orchestration
• Expose transversal services API (load balancers, DNS, service directories)
• But don’t forget to move step by step to make it happen. Remind how virutalization arrived!
@AdrienBlind
Tips & tricks• Think DevOps: don’t forget your Ops • Expect a shift in traditional apps
• Importance of the architecture• Application configuration management
• Move pro-gres-siv-ely: baby steps first• Start at the Dev workstation• Avoid discussing big CaaS cloud,
orchestration, right from the begining@AdrienBlind
Cloud DevOps
Opportunities @AdrienBlind
Take away
Thank You.
21 @AdrienBlind