whoissqr/robot-shop

Sample microservices application for playing with

automatic agent creation in k8s cluster using admission controller

create a KIND cluster

kind create cluster --name seeker-inj

checkout source

git clone https://github.com/instana/robot-shop

download agent injector

cd robot-shop
export SEEKER_SERVER_URL=http://prd-sal-demo01.dc2.lan:8080
curl -k -o /tmp/seeker-k8s-agent-injector.zip "${SEEKER_SERVER_URL}/rest/ui/installers/integrations/kubernetes"
unzip -d seeker-k8s-agent-injector /tmp/seeker-k8s-agent-injector.zip
cd seeker-k8s-agent-injector/

build seeker agent inject image and push to repo

docker login registry.gitlab.com -u kk.shichao@gmail.com -p xxxyyyzzz
export DOCKER_REGISTRY=registry.gitlab.com/apac-sig-demo/deploy-scripts/seeker-k8s
docker build -t "${DOCKER_REGISTRY}/seeker-k8s-agent-injector:2022.8.0" .
docker push "${DOCKER_REGISTRY}/seeker-k8s-agent-injector:2022.8.0"

add a docker reg secret

kubectl create ns seeker-agent-injector
kubectl create secret docker-registry regcred \
--docker-server=registry.gitlab.com \
--docker-username=kk.shichao@gmail.com \
--docker-password=glpat-xxxxx \
-n seeker-agent-injector

add regcred to seeker-k8s-agent-injector/deploy/webhook.yaml

modify seeker server URL

apiVersion: apps/v1
kind: Deployment
metadata:
  name: seeker-k8s-agent-injector-webhook
  namespace: seeker-agent-injector
  labels:
    app: seeker-k8s-agent-injector-webhook
spec:
  replicas: 1
  selector:
    matchLabels:
      app: seeker-k8s-agent-injector-webhook
  template:
    metadata:
      labels:
        app: seeker-k8s-agent-injector-webhook
    spec:
      imagePullSecrets:
        - name: regcred
      containers:

create a seeker project with key 'app'

deploy seeker agent injector

cd seeker-k8s-agent-injector/
./deploy-seeker-agent-injector.sh

test helm chart

modify storageClassName to gp2 if it is EKS

cd robot-shop/K8s/helm
helm install  robot-shop --namespace app .
helm ls -A