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https://github.com/by-sabbir/canary-with-istio
Canary/ Blue-Green Deployment demo with Istio service mesh for kubernetes
https://github.com/by-sabbir/canary-with-istio
canary canary-deployment istio kubernetes microservices
Last synced: 5 days ago
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Canary/ Blue-Green Deployment demo with Istio service mesh for kubernetes
- Host: GitHub
- URL: https://github.com/by-sabbir/canary-with-istio
- Owner: by-sabbir
- Created: 2024-02-03T01:17:56.000Z (10 months ago)
- Default Branch: master
- Last Pushed: 2024-02-05T00:47:38.000Z (9 months ago)
- Last Synced: 2024-02-05T01:39:34.985Z (9 months ago)
- Topics: canary, canary-deployment, istio, kubernetes, microservices
- Homepage: https://bysabbir.medium.com/canary-deployment-with-istio-aa40cacf22b4
- Size: 4.88 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Canary Deployment with Istio
## System Architecture
The purpose of this demo is to simulate a simple e-commerce event-driven microsercie architecture.
```mermaid
flowchart LR
APIGW --> Product --> RabbitMQ
APIGW --> Inventory
APIGW --> Review
RabbitMQ --> Inventory
subgraph Services
MongoDB[(Database)] <--> Product
MongoDB <--> Inventory
MongoDB <--> Review
end
subgraph EventBus
Product --> RabbitMQ
RabbitMQ --> Inventory
end
```
## Kind cluster initiation
If you don't already have kind installed, follow the [link](https://kind.sigs.k8s.io/docs/user/quick-start/)
```bash
kind create cluster --config=kind-cluster.yaml
```
## Install Istio Ingress Gateway CRD
```bash
kubectl get crd gateways.gateway.networking.k8s.io &> /dev/null || \
{ kubectl kustomize "github.com/kubernetes-sigs/gateway-api/config/crd?ref=v0.8.0" | kubectl apply -f -; }
```
## Istio Initializing
```bash
curl -L https://istio.io/downloadIstio | sh -
# export the istio path
istioctl install --set profile=demo -y
```
### Install and Configure MetalLB
```bash
kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml
```
- Setup address pool for LB
``` bash
docker network inspect -f '{{ (index .IPAM.Config 0).Gateway }}' kind
```
then configure `metallb-conf.yaml` accordingly and run `k apply`
### Install RabbitMQ CRDs
```bash
kubectl apply -f "https://github.com/rabbitmq/cluster-operator/releases/latest/download/cluster-operator.yml"
```
#### Configure RMQ
```bash
k exec -it rabbitmq-server-0 -- bash
rabbitmqctl add_user admin admin
rabbitmqctl set_permissions --vhost / admin '.*' '.*' '.*'
rabbitmqctl set_user_tags admin administrator
```
Or get the default password from cli
```bash
# Get Username
kubectl get secret rabbitmq-default-user -o jsonpath="{.data.username}" | base64 --decode
# Get Password
kubectl get secret rabbitmq-default-user -o jsonpath="{.data.password}" | base64 --decode
```
### Install Mongo
```bash
k apply -f -r k8s-config/mongod
```
#### Configure Mongo ReplicaSet
- Drop to mongo shell
`k exec -it mongo-0 -- mongosh`
```bash
rs.initiate()
var cfg = rs.conf()
cfg.members[0].host="mongo-0.mongo.default.svc.cluster.local:27017"
rs.reconfig(cfg)
rs.add("mongo-1.mongo.default.svc.cluster.local:27017")
rs.add("mongo-2.mongo.default.svc.cluster.local:27017")
```
- Check the replication status
`rs.status()`
### Installing the application via helm
Update `egcom/applications/templates/egcom-cm.yaml ` ConfigMap values with the Grafana and RMQ creds.
```bash
k create ns egcom
k label namespace default istio-injection=enabled
helm install egcom ./applications -n egcom
```
### Test your setup
```
~ ❯ k get gtw -n egcom
NAME CLASS ADDRESS PROGRAMMED AGE
apigw-gateway istio 172.18.0.103 True 31h
inventory-gateway istio 172.18.0.104 True 31h
product-gateway istio 172.18.0.102 True 31h
review-gateway istio 172.18.0.101 True 31h
```
### Postman Collection
`baseURL` is the address of the apigw-gateway
[
](https://app.getpostman.com/run-collection/10587991-172b56a8-a87f-4ec8-93ee-24b29544c1a2?action=collection%2Ffork&source=rip_markdown&collection-url=entityId%3D10587991-172b56a8-a87f-4ec8-93ee-24b29544c1a2%26entityType%3Dcollection%26workspaceId%3D82d5477e-9493-4000-b370-675b650112cb)