Slide 1
Slide 1 text
Dynamic Routing by
Envoy + Istio
Envoy Meetup Tokyo #1
Yuki Ito
Slide 2
Slide 2 text
Merpay
Architect Team
Backend Engineer
Yuki Ito
Slide 3
Slide 3 text
Goal
Multi-line QA
microservice A
PR 1 PR 2 PR 3
Slide 4
Slide 4 text
Architecture
API Gateway
VirtualService
microservice A
Service
Pod
PR 3
Service
Pod
PR 2
Service
Pod
PR 1
JWT
Slide 5
Slide 5 text
Architecture
API Gateway
VirtualService
microservice A
Service
Pod
PR 3
Service
Pod
PR 2
Service
Pod
PR 1
JWT
microservice-A: PR-1
Slide 6
Slide 6 text
Custom HTTP Filter
{
"microservice-A": "PR-1",
"microservice-B": "PR-2"
}
microservice-A: PR-1
microservice-B: PR-2
Request from APP
Request to Upstream
JWT Payload
HTTP Header
ɾɾɾ
ɾɾɾ
Slide 7
Slide 7 text
Custom HTTP Filter
EnvoyFilter
spec:
workloadLabels:
mercari.com/service-router: enabled
filters:
- listenerMatch:
listenerType: SIDECAR_OUTBOUND
listenerProtocol: HTTP
filterName: envoy.lua
filterType: HTTP
filterConfig:
inlineCode: |
...
Slide 8
Slide 8 text
Custom HTTP Filter
Slide 9
Slide 9 text
Routing via VirtualService
VirtualService
http:
- match:
- headers:
microservice-A:
exact: "PR-1"
route:
- destination:
host: pr-1.microservice-a.svc.cluster.local
...
Slide 10
Slide 10 text
Architecture
API Gateway
VirtualService
microservice A
Service
Pod
PR 3
Service
Pod
PR 2
Service
Pod
PR 1
JWT