Microservices, Service Mesh, and CI/CD Pipelines
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Microservices come with many advantages for massively scaling applications. CI/CD is a common approach to automating updates to these applications in kubernetes. Strategies such as canary deployments can be simple with a basic website, but this is a difficult task with distributed systems. I would argue that many CI/CD systems are missing some key components such as: advanced routing, observability, and chaos testing.
Service mesh solutions bring these missing components to kubernetes allowing us to shape traffic to specific versions and obtain metrics to better understand the impact of updates.
will show how service mesh technologies such as istio, conduit, or linkerd ease the ability to efficiently deliver and test microservices in Kubernetes.
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1.Microservices, Service Mesh, and
CI/CD Pipelines:
Making it All Work Together
Brian Redmond, Microsoft
2.Who am I?
Brian Redmond
• Cloud Architect @ Microsoft (17 years)
• Azure Global Black Belt Team
• Live in Pittsburgh, PA, USA
• Avid marathon runner and
outdoors enthusiast
• World traveler
@chzbrgr71
4.Microservices
The answer to all problems.
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5.Containers
The answer to all problems.
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6.Kubernetes
The answer to all problems.
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12.Deployment Strategies
• Container Native Development
• Continuous Integration
• Continuous Deployment
• Blue/Green Testing
• Canary Testing
• A/B Testing
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13.Blue / Green Testing
v1
proxy
testing
v2
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14.Canary Testing
v1
80%
proxy
100%
20%
v2
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15.A / B Testing
v1
Live Traffic
proxy
Duplicate for
analysis
v2
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16.Microservices Deployment
proxy
ui
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21.Enter Istio
• Service discovery and routing
• Health checking
• Observability
• Authentication and authorization
• Resiliency
• Policy enforcement
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23.What can I do with Istio?
advanced routing → route rules, traffic shaping
observability → metrics, logs, and tracing
chaos testing → fault injection (delays, faults)
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24.what about a
CI/CD tool?
26. What is brigade?
brigade = event-driven scripting for kubernetes
• Encapsulate functions in containers
• Run in parallel or serial
• Trigger workflow from Github, Docker registry, etc.
• Javascript (pipeline as code)
• Project config stored as secrets
• Well suited for CI/CD pipelines
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29.Demo App Architecture
Azure Kubernetes Service
api-earthquakes
Azure
api-fracking CosmosDB
web-earth
api-weather
api-location
api-flights
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