garystafford/k8s-istio-observe-backend
Fork: 78 Star: 188 (更新于 2024-11-15 08:49:36)
license: MIT
Language: Go .
Go-based microservices reference platform for demo of k8s observability with Istio
最后发布版本: v2.1.0 ( 2021-06-13 02:37:08)
Kubernetes-based Microservice Observability with Istio Service Mesh
Source code for the two-part blog post, Kubernetes-based Microservice Observability with Istio Service Mesh. Also, for the post, Observing gRPC-based Microservices on Amazon EKS running Istio . See these posts for detailed instructions.
Frontend UI
An Angular 12 front-end UI to the API is located on Github: k8s-istio-observe-frontend.
Reference Platform Architectures
RESTful JSON over HTTP architecture:
gRPC using protobufs over HTTP/2 architecture:
Service Responses
On the reference platform, each upstream service responds to requests from downstream services by returning a small informational JSON payload (termed a greeting in the source code).
{
"id": "01596496-c6f3-442e-8fa0-26c09783fac6",
"service": "Service A",
"message": "Howdy, from Service A!",
"created": "2021-07-03 13:24:16.43337955 +0000 UTC",
"hostname": "service-a-5648545d66-ddq28"
}
Complete response from Service A
{
"greeting": [
{
"id": "01596496-c6f3-442e-8fa0-26c09783fac6",
"service": "Service A",
"message": "Howdy, from Service A!",
"created": "2021-07-03 13:24:16.43337955 +0000 UTC",
"hostname": "service-a-5648545d66-ddq28"
},
{
"id": "90da9923-8b0b-4c3c-93cb-cc3a17568a5d",
"service": "Service B",
"message": "Namasté (नमस्ते), from Service B!",
"created": "2021-07-03 13:24:16.454971435 +0000 UTC",
"hostname": "service-b-6685bdf588-297hl"
},
{
"id": "6a43f52e-97c3-4fda-b9db-1257759cf5e9",
"service": "Service D",
"message": "Shalom (שָׁלוֹם), from Service D!",
"created": "2021-07-03 13:24:16.476144396 +0000 UTC",
"hostname": "service-d-5f486b99b5-j7gkc"
},
{
"id": "0ee4ec6d-1107-44b5-b53f-d243e628867c",
"service": "Service E",
"message": "Bonjour, from Service E!",
"created": "2021-07-03 13:24:16.550752623 +0000 UTC",
"hostname": "service-e-6769679f5f-q4l8s"
},
{
"id": "51b978c3-9cfc-420f-9fb3-956853dc76ae",
"service": "Service G",
"message": "Ahlan (أهلا), from Service G!",
"created": "2021-07-03 13:24:16.568093421 +0000 UTC",
"hostname": "service-g-7cd66567c5-lwpft"
},
{
"id": "179c99ef-d8a6-4e53-abd9-bbd13476bf86",
"service": "Service H",
"message": "Nǐ hǎo (你好), from Service H!",
"created": "2021-07-03 13:24:16.618275186 +0000 UTC",
"hostname": "service-h-8468c7888-jtxn9"
},
{
"id": "cbb05fd4-68c4-4281-83a5-3fcd402b93fc",
"service": "Service C",
"message": "Konnichiwa (こんにちは), from Service C!",
"created": "2021-07-03 13:24:16.665208081 +0000 UTC",
"hostname": "service-c-7c8d674595-hx5z7"
}
]
}
Optional Docker Swarm Deployment
In addition to Kubernetes, you can deploy the reference platform to Docker Swarm. Create Docker overlay network, and deploy Docker Swarm, locally, consisting of (12) containers:
- (1) Angular 12 frontend UI
- (8) backend Go-based microservices
- (1) RabbitMQ server with (1) queue
- (1) MongoDB server with (4) databases
- (1) Mongo Express
docker network create -d overlay --attachable golang-demo
docker stack deploy -c docker_swarm/stack.yml golang-demo
View the Running Stack
> docker stack services golang-demo --format "table {{.Name}}\t{{.Image}}\t{{.Ports}}" | sort
NAME IMAGE PORTS
golang-demo_angular-ui garystafford/angular-observe:1.6.5 *:80->80/tcp
golang-demo_mongodb mongo:4.4.6 *:27017->27017/tcp
golang-demo_mongo_express mongo-express:0.54.0 *:8081->8081/tcp
golang-demo_rabbitmq rabbitmq:3.8.16-management-alpine *:5672->5672/tcp, *:15672->15672/tcp
golang-demo_service-a garystafford/go-srv-a:1.6.5 *:8080->8080/tcp
golang-demo_service-b garystafford/go-srv-b:1.6.5
golang-demo_service-c garystafford/go-srv-c:1.6.5
golang-demo_service-d garystafford/go-srv-d:1.6.5
golang-demo_service-e garystafford/go-srv-e:1.6.5
golang-demo_service-f garystafford/go-srv-f:1.6.5
golang-demo_service-g garystafford/go-srv-g:1.6.5
golang-demo_service-h garystafford/go-srv-h:1.6.5
Accessing the Docker Swarm-based Stack
To start, call the Angular 12 Frontend UI: http://localhost
The backend API's URL will be: http://localhost:8080
Alternately, call Service A, the system's edge service, directly: http://localhost:8080/api/greeting
To observe the queue traffic, use the RabbitMQ Management Console: http://localhost:15672
To observe the databases, use Mongo Express: http://localhost:8081
View of UI running on Docker
The contents of this repository represent my viewpoints and not of my past or current employers, including Amazon Web Services (AWS). All third-party libraries, modules, plugins, and SDKs are the property of their respective owners.
最近版本更新:(数据更新于 2024-10-11 00:36:04)
2021-06-13 02:37:08 v2.1.0
2021-06-03 00:39:59 v2.0.0
2019-03-19 19:13:36 v1.3.0
2019-03-15 06:43:07 v1.2.0
2019-03-15 06:35:25 v1.0.0
主题(topics):
api, eks, gke, golang, isito, k8s, kubernetes, observability
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