CD ืืื ืื ืขืจืงืขื ื ืืื ืึท ืคืึทืจื ืขืืื ื ืืืืืืืืืจื ืคืืจ ืืื ืืื ืึท ื ืึทืืืจืืขื ืขืืืึธืืืฆืืข ืคืื โโืืขืืจืื ืืขื ืกื ืคึผืจืื ืกืึทืคึผืึทืื. ืึธืืขืจ, CD ืืื ื ืึธื ืืึทื ืฅ ืืขืืื, ืืึธืืขืจ ืจืขืื ืฆื ืืขืจ ืงืึทืืคึผืืขืงืกืืื ืคืื ืคืึทืจืืืึทืืืื ื ืืื ืื ืืืจื ืคืื ื ืื ืึทื ืืขืจืฉ ืืืคึผืืืืืึทื ืฅ ืืืึธืก ืืืืจืงื ืกืืกืืขื ืึทืืืืืืึทืืืืึทืื.
ืื ืืขืจ ืืื ืึท ืฉืจืื-ืืืจื-ืฉืจืื ืคืืจื ืฆื ืืึทืฉืืขืืืงื ืืื ื ืืฆื Flagger ืืืืฃ Google Kubernetes Engine (GKE).
ืืึทืฉืืขืืืงื ืึท ืงืืืขืจื ืขืืขืก ืงื ืืื
ืืืจ ืึธื ืืืืื ืืื ืงืจืืืืืื ื ืึท GKE ืงื ืืื ืืื ืื Istio ืึทืืืฉืึทื (ืืืื ืืืจ ืืึธื ื ืื ืืึธืื ืึท GCP ืืฉืืื, ืืืจ ืงืขื ื ืืื ืืืื ืฉืจืืืื
ืงืืึธืฅ ืืื ืฆื Google ืงืืึธืื, ืฉืึทืคึฟื ืึท ืคึผืจืืืขืงื ืืื ืืขืื ืืืืื ื ืคึฟืึทืจ ืขืก. ืื ืกืืึทืืืจื ืื ืืึทืคึฟืขืื ืฉืืจื ื ืืฆื gcloud init
.
ืืึทืฉืืขืืืง ืื ืคืขืืืงืืึทื ืคึผืจืืืขืงื, ืจืขืืขื ืขื ืฉืื ืืื ืืึธื ืข (ืคืึทืจืืืึทืื PROJECT_ID
ืคึฟืึทืจ ืืืื ืคึผืจืืืขืงื):
gcloud config set project PROJECT_ID
gcloud config set compute/region us-central1
gcloud config set compute/zone us-central1-a
ืืขืื ืื GKE ืืื ืกื ืืื ืฉืึทืคึฟื ืึท ืงื ืืื ืืื HPA ืืื Istio ืึทื-ืึธื ืก:
gcloud services enable container.googleapis.com
K8S_VERSION=$(gcloud beta container get-server-config --format=json | jq -r '.validMasterVersions[0]')
gcloud beta container clusters create istio
--cluster-version=${K8S_VERSION}
--zone=us-central1-a
--num-nodes=2
--machine-type=n1-standard-2
--disk-size=30
--enable-autorepair
--no-enable-cloud-logging
--no-enable-cloud-monitoring
--addons=HorizontalPodAutoscaling,Istio
--istio-config=auth=MTLS_PERMISSIVE
ืื ืืืืื ืืึทืคึฟืขื ืืืขื ืืึทืื ืึท ืคืขืืืงืืึทื ื ืึธืืข ืืขืงื ืงืึทื ืกืืกืืื ื ืคืื ืฆืืืื ืืืืก n1-standard-2
(ืืืงืคึผื: 2, ืืึทืจืึทื 7,5 ืืืืืืืื, ืืืกืง: 30 ืืืืืืืื). ืืืขืึทืืื, Istio ืงืึทืืคึผืึธืื ืึทื ืฅ ืืึธื ืืืื ืืคืืขืืื ืืขืจื ืคืื ืืืืขืจ ืืืขืจืงืืึธืืื, ืึธืืขืจ ืขืก ืืื ืงืืื ืืจืื ื ืืืขื ืฆื ืืืืคื Istio ืคึผืึธืืก ืืืืฃ ืึท ืืขืืึทืงืืืืึทื ื ืึธืืข ืืขืงื. ืืกืืืึธ ืืึทื ืึทืคืขืกืืื ืืขื ืขื ืืขืจืขืื ื ืืื ืืืืื ืืืืขื ืขื, ืืื GKE ืืืขื ืฆืืจืืงืงืจืืื ืงืืื ืขื ืืขืจืื ืืขื ืึทืืึท ืืื ืืืื ืืื ื ืฆื ืึท ื ืึธืืข ืึธืืขืจ ืืืืึทืืฉืื ื ืคืื ืึท ืคึผืึธื.
ืฉืืขืื ืึทืจืืืฃ ืงืจืึทืืขื ืืฉืึทืื ืคึฟืึทืจ kubectl
:
gcloud container clusters get-credentials istio
ืฉืึทืคึฟื ืึท ืงื ืืื ืึทืืืื ืจืึธืืข ืืืื ืืื ื:
kubectl create clusterrolebinding "cluster-admin-$(whoami)"
--clusterrole=cluster-admin
--user="$(gcloud config get-value core/account)"
ืื ืกืืึทืืืจื ืื ืืึทืคึฟืขืื ืฉืืจื ืืขืฆืืึทื
brew install kubernetes-helm
Homebrew 2.0 ืืื ืืืฆื ืืืื ืื ืืืฆื ืคึฟืึทืจ
ืฉืึทืคึฟื ืึท ืืื ืกื ืืฉืืื ืืื ืงื ืืื ืจืึธืืข ืืืื ืืื ื ืคึฟืึทืจ Tiller:
kubectl -n kube-system create sa tiller &&
kubectl create clusterrolebinding tiller-cluster-rule
--clusterrole=cluster-admin
--serviceaccount=kube-system:tiller
ืืงืกืคึผืึทื ื ืืืืืขืจ ืืื ื ืึธืืขื ืกืคึผืืืก kube-system
:
helm init --service-account tiller
ืืืจ ืืึธื ืืึทืืจืึทืืื ื ืืฆื SSL ืฆืืืืฉื ืืขืื ืืื ืืืืขืจ. ืคึฟืึทืจ ืืขืจ ืืื ืคึฟืึธืจืืึทืฆืืข ืืืขืื ืคึผืจืึทืืขืงืืื ื ืืืื ืืขืื ืื ืกืืึทืืืจืื ื, ืืขื
ืืึทืฉืืขืืืงื ืกืขืืืื ืืก:
kubectl -n istio-system get svc
ื ืึธื ืึท ืืืกื ืกืขืงืื ืืขืก, GCP ืืึธื ืืึทืฉืืืืขื ืึท ืคืื ืืจืืืกื ืืืง IP ืึทืืจืขืก ืฆื ืื ืกืขืจืืืืก istio-ingressgateway
.
ืืึทืฉืืขืืืงื ืึทื Istio Ingress Gateway
ืฉืึทืคึฟื ืึท ืกืืึทืืืง IP ืึทืืจืขืก ืืื ืืขื ื ืึธืืขื istio-gateway
ื ืืฆื ืื Istio ืืืืืืืื IP ืึทืืจืขืก:
export GATEWAY_IP=$(kubectl -n istio-system get svc/istio-ingressgateway -ojson | jq -r .status.loadBalancer.ingress[0].ip)
gcloud compute addresses create istio-gateway --addresses ${GATEWAY_IP} --region us-central1
ืืืฆื ืืืจ ืืึทืจืคึฟื ืึทื ืืื ืืขืจื ืขื ืคืขืื ืืื ืึทืงืกืขืก ืฆื ืืืื ืื ืก ืจืขืืืกืืจืึทืืึธืจ. ืืืื ืฆืืืื ื ืจืขืงืึธืจืืก (ืคืึทืจืืืึทืื example.com
ืฆื ืืืื ืคืขืื):
istio.example.com A ${GATEWAY_IP}
*.istio.example.com A ${GATEWAY_IP}
ืืึทืฉืืขืืืงื ืึทื DNS ืืืืืืงืึทืจื ืึทืจืืขื:
watch host test.istio.example.com
ืฉืึทืคึฟื ืึท ืืืฉืึทื ืขืจืืง Istio ืืืืืืืื ืฆื ืฆืืฉืืขืื ืืึทืืื ืื ืืก ืึทืจืืืก ืื ืกืขืจืืืืก ืืขืฉ ืืืืขืจ ืืืืคึผ:
apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
name: public-gateway
namespace: istio-system
spec:
selector:
istio: ingressgateway
servers:
- port:
number: 80
name: http
protocol: HTTP
hosts:
- "*"
ืืื ืื ืืืืื ืืืื ืืื public-gateway.yaml ืืื ืฆืืืืืื ืขืก:
kubectl apply -f ./public-gateway.yaml
ืงืืื ืคึผืจืึธืืืงืฆืืข ืกืืกืืขื ืืึธื ืฆืืฉืืขืื ืืึทืืื ืื ืืก ืืืืฃ ืืขืจ ืืื ืืขืจื ืขืฅ ืึธื ืกืกื. ืฆื ืืึทืืืึธืจืขื ืขื ืืืื Istio ืื ืืจืขืกืก ืืืืืืืื ืืื ืกืขืจื-ืคืึทืจืืืึทืืืขืจ, CloudDNS ืืื Let's Encrypt, ืืืืข ืืืืขื ืขื
ืคืืึทืืขืจ ืื ืกืืึทืืืจืื ื
ืื GKE Istio ืึทืืืฉืึทื ืืื ื ืืฉื ืึทืจืืึทื ื ืขืืขื ืื Prometheus ืืืึทืฉืคึผืื ืืืึธืก ืงืืื ื ืื Istio ืืขืืขืืขืืจื ืืื ืกื. ืืื ื Flagger ื ืืฆื Istio HTTP ืืขืืจืืงืก ืฆื ืืืจืืคืืจื ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก, ืืืจ ืืึทืจืคึฟื ืฆื ืฆืขืืืืงืืขื ืื ืคืืืืขื ืืข ืคึผืจืึธืืขืืืขืืก ืงืึทื ืคืืืืขืจืืืฉืึทื, ืขื ืืขื ืฆื ืืขืจ ืืืึธืก ืงืืื ืืื ืืขืจ ืืึทืึทืืืขืจ Istio Helm ืกืืฉืขืืึท.
REPO=https://raw.githubusercontent.com/stefanprodan/flagger/master
kubectl apply -f ${REPO}/artifacts/gke/istio-prometheus.yaml
ืืืื ืื Flagger Helm ืจืืคึผืึทืืึทืืึธืจื:
helm repo add flagger [https://flagger.app](https://flagger.app/)
ืืงืกืคึผืึทื ื ืคืืึทืืขืจ ืฆื ื ืึธืืขื ืกืคึผืืืก istio-system
ืืืจื ืืขืื Slack ื ืึธืืืึทืคืึทืงืืืฉืึทื ื:
helm upgrade -i flagger flagger/flagger
--namespace=istio-system
--set metricsServer=http://prometheus.istio-system:9090
--set slack.url=https://hooks.slack.com/services/YOUR-WEBHOOK-ID
--set slack.channel=general
--set slack.user=flagger
ืืืจ ืงืขื ืขื ืื ืกืืึทืืืจื ืคืืึทืืืขืจ ืืื ืงืืื ื ืึทืืขืกืคึผืึทืกืข ืืื ืืึทื ื ืืื ืขืก ืงืขื ืขื ืืืขืจืืขืื ืืื ืื Istio Prometheus ืืื ืกื ืืืืฃ ืคึผืึธืจื 9090.
Flagger ืืื ืึท ืืจืึทืคืึทื ืึท ืืึทืฉืืึธืจื ืคึฟืึทืจ ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก. ืื ืกืืึทืืืจื Grafana ืืื ื ืึทืืขืกืคึผืืืก istio-system
:
helm upgrade -i flagger-grafana flagger/grafana
--namespace=istio-system
--set url=http://prometheus.istio-system:9090
--set user=admin
--set password=change-me
ืืืกืฉืืขืื Grafana ืืืจื ืึทื ืึธืคึฟื ืืืืืืืื ืืืจื ืงืจืืืืืื ื ืึท ืืืืจืืืึทื ืืื ืกื (ืคืึทืจืืืึทืื example.com
ืฆื ืืืื ืคืขืื):
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
name: grafana
namespace: istio-system
spec:
hosts:
- "grafana.istio.example.com"
gateways:
- public-gateway.istio-system.svc.cluster.local
http:
- route:
- destination:
host: flagger-grafana
ืืื ืื ืืืืื ืืืื ืืื grafana-virtual-service.yaml ืืื ืฆืืืืืื ืขืก:
kubectl apply -f ./grafana-virtual-service.yaml
ืืืขื ืืขืืื ืืขื ืฆื http://grafana.istio.example.com
ืืืื ืืืขืืขืจืขืจ ืืึธื ืจืืืขืจืขืงื ืืืจ ืฆื ืื Grafana ืืึธืืื ืืืึทื.
ืืืคึผืืืืื ื ืืืขื ืึทืคึผืืึทืงืืืฉืึทื ื ืืื ืคืืึทืืืขืจ
Flagger ืืืคึผืืืืื Kubernetes ืืื, ืืืื ื ืืืืืง, ืืึธืจืืืึธื ืืึทื ืึทืืืึธืกืงืึทืืื ื (HPA), ืืื ืงืจืืืืฅ ืึท ืกืขืจืืข ืคืื โโโโืึทืืืืฉืขืงืฅ (Kubernetes ืืืคึผืืืืืึทื ืฅ, ClusterIP ืืึทืืื ืื ืืก ืืื Istio ืืืืจืืืึทื ืืึทืืื ืื ืืก). ืื ืึทืืืืฉืขืงืฅ ืืืกืฉืืขืื ืื ืึทืคึผืืึทืงืืืฉืึทื ืฆื ืื ืกืขืจืืืืก ืืขืฉ ืืื ืคืืจื ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก ืืื ืืขืืขืจืื ื.
ืฉืึทืคึฟื ืึท ืคึผืจืึธืืข ื ืึทืืขืกืคึผืึทืกืข ืืื Istio Sidecar ืืืคึผืืึทืืขื ืืืืฉืึทื ืขื ืืืืึทืื:
REPO=https://raw.githubusercontent.com/stefanprodan/flagger/master
kubectl apply -f ${REPO}/artifacts/namespaces/test.yaml
ืฉืึทืคึฟื ืึท ืืืคึผืืืืืึทื ื ืืื ืึทื ืึธืืึทืืึทืืืง ืืึธืจืืืึธื ืืึทื ืกืงืืืืื ื ืืขืฆืืึทื ืคึฟืึทืจ ืื ืคึผืึธื:
kubectl apply -f ${REPO}/artifacts/canaries/deployment.yaml
kubectl apply -f ${REPO}/artifacts/canaries/hpa.yaml
ืฆืขืืืืงืืขื ืึท ืืึทืกืข ืคึผืจืืืืจื ืืื ืกื ืฆื ืืืฉืขื ืขืจืืื ืคืึทืจืงืขืจ ืืขืฉืึทืก ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก:
helm upgrade -i flagger-loadtester flagger/loadtester
--namepace=test
ืฉืึทืคึฟื ืึท ืื ืื ืงืึทื ืึทืจื ืืืื (ืคืึทืจืืืึทืื example.com
ืฆื ืืืื ืคืขืื):
apiVersion: flagger.app/v1alpha3
kind: Canary
metadata:
name: podinfo
namespace: test
spec:
targetRef:
apiVersion: apps/v1
kind: Deployment
name: podinfo
progressDeadlineSeconds: 60
autoscalerRef:
apiVersion: autoscaling/v2beta1
kind: HorizontalPodAutoscaler
name: podinfo
service:
port: 9898
gateways:
- public-gateway.istio-system.svc.cluster.local
hosts:
- app.istio.example.com
canaryAnalysis:
interval: 30s
threshold: 10
maxWeight: 50
stepWeight: 5
metrics:
- name: istio_requests_total
threshold: 99
interval: 30s
- name: istio_request_duration_seconds_bucket
threshold: 500
interval: 30s
webhooks:
- name: load-test
url: http://flagger-loadtester.test/
timeout: 5s
metadata:
cmd: "hey -z 1m -q 10 -c 2 http://podinfo.test:9898/"
ืืื ืื ืืืืื ืืืื ืืื podinfo-canary.yaml ืืื ืฆืืืืืื ืขืก:
kubectl apply -f ./podinfo-canary.yaml
ืื ืืืืื ืึทื ืึทืืืกืืก, ืืืื ืืขืจืึธืื, ืืืขื ืืืืคื ืคึฟืึทืจ ืคืื ืฃ ืืื ืื, ืืฉืขืง ืืืืคึผ ืืขืืจืืงืก ืืขืืขืจ ืืึทืื ืืื ืื. ืืืจ ืงืขื ืขื ืืึทืฉืืืืขื ืื ืืื ืืืื ืฆืืื ืคืืจืืื ืื ืฆื ืคึผืจืืืืจื ืืื ืืขืืขืจื ืึท ืงืึทื ืึทืจื ืืืคึผืืืืืึทื ื ืืื ืื ืคืืืืขื ืืข ืคืึธืจืืืืข: interval * (maxWeight / stepWeight)
. ืงืึทื ืึทืจื ืงืจื ืคืขืืืขืจ ืืขื ืขื ืืึทืงืืืืขื ืืึทื
ื ืึธื ืึท ืคึผืึธืจ ืคืื ืกืขืงืื ืืขืก, Flagger ืืืขื ืืึทืื ืงืึทื ืึทืจื ืึทืืืืฉืขืงืฅ:
# applied
deployment.apps/podinfo
horizontalpodautoscaler.autoscaling/podinfo
canary.flagger.app/podinfo
# generated
deployment.apps/podinfo-primary
horizontalpodautoscaler.autoscaling/podinfo-primary
service/podinfo
service/podinfo-canary
service/podinfo-primary
virtualservice.networking.istio.io/podinfo
ืขืคืขื ืขื ืืืื ืืืขืืขืจืขืจ ืืื ืืืื ืฆื app.istio.example.com
, ืืืจ ืืึธื ืืขื ืื ืืืขืจืกืืข ื ืืืขืจ
ืึธืืึทืืึทืืืง ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก ืืื ืืขืืขืจืื ื
ืคืืึทืืืขืจ ืืืคึผืืึทืืึทื ืฅ ืึท ืงืึธื ืืจืึธื ืฉืืืืฃ ืืืึธืก ืืืกืืขืืืืืึทื ืืืืืขืื ืคืึทืจืงืขืจ ืฆื ืื ืงืึทื ืึทืจื ืืฉืขืช ืืขืกืื ืฉืืืกื ืคืึธืจืฉืืขืืื ื ืื ืืืงืึทืืึธืจืก ืึทืืึท ืืื HTTP ืืขืื ืืฆืืื ืงืืจืก, ืืืจืืฉื ืืืืขื ืืขืื ืืขืืืืขืจ ืืื ืคึผืึธื ืืขืืื ื. ืืึทืืืจื ืืืืฃ ืื KPI ืึทื ืึทืืืกืืก, ืื ืงืึทื ืึทืจื ืืื ืคึผืจืึธืืึธืืขื ืึธืืขืจ ืืขืจืืึทื ืืืืื, ืืื ืื ืจืขืืืืืึทืื ืคืื ืื ืึทื ืึทืืืกืืก ืืขื ืขื ืืจืืืก ืืื Slack.
ืงืึทื ืึทืจื ืืืคึผืืืืืึทื ื ืืื ืืจืืืขืจื ืืืขื ืืืื ืขืจ ืคืื ืื ืคืืืืขื ืืข ืึทืืืืฉืขืงืฅ ืขื ืืขืจืื ืืขื:
- ืฆืขืืืืงืืขื ืคึผืึธืืกืคึผืขืง (container ืืืื, ืืึทืคึฟืขื, ืคึผืึธืจืฅ, ืขื ืื, ืขืืง.)
- ืงืึธื ืคืืืืึทืคึผืก ืืขื ืขื ืืึธืื ืืขื ืืื ืืืึทืืืืื ืึธืืขืจ ืงืึธื ืืืขืจืืขื ืฆื ืกืืืืืืข ืืืขืจืืึทืืึทืื
- ืกืขืงืจืขืฅ ืืขื ืขื ืืึธืื ืืขื ืืื ืืืึทืืืืื ืึธืืขืจ ืงืึธื ืืืขืจืืขื ืฆื ืกืืืืืืข ืืืขืจืืึทืืึทืื
ืืืืคื ืงืึทื ืึทืจื ืืืคึผืืืืืึทื ื ืืืขื ืึทืคึผืืืืืื ื ืืขื ืงืึทื ืืืื ืขืจ ืืืื:
kubectl -n test set image deployment/podinfo
podinfod=quay.io/stefanprodan/podinfo:1.4.1
ืคืืึทืืืขืจ ืืืืขืงืฅ ืึทื ืื ืืืคึผืืืืืึทื ื ืืืขืจืกืืข ืืื ืืขืืืื ืืื ืืืืื ืฆื ืึทื ืึทืืืื ืขืก:
kubectl -n test describe canary/podinfo
Events:
New revision detected podinfo.test
Scaling up podinfo.test
Waiting for podinfo.test rollout to finish: 0 of 1 updated replicas are available
Advance podinfo.test canary weight 5
Advance podinfo.test canary weight 10
Advance podinfo.test canary weight 15
Advance podinfo.test canary weight 20
Advance podinfo.test canary weight 25
Advance podinfo.test canary weight 30
Advance podinfo.test canary weight 35
Advance podinfo.test canary weight 40
Advance podinfo.test canary weight 45
Advance podinfo.test canary weight 50
Copying podinfo.test template spec to podinfo-primary.test
Waiting for podinfo-primary.test rollout to finish: 1 of 2 updated replicas are available
Promotion completed! Scaling down podinfo.test
ืืขืฉืึทืก ืึทื ืึทืืืกืืก, ืงืึทื ืึทืจื ืจืขืืืืืึทืื ืงืขื ืขื ืืืื ืืึธื ืืืึธืจืขื ืืื Grafana:
ืืืืข ืืึธื: ืืืื ื ืืึทืข ืขื ืืขืจืื ืืขื ืืขื ืขื ืืขืืืขื ืื ืฆื ืื ืืืคึผืืืืืึทื ื ืืขืฉืึทืก ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก, Flagger ืืืขื ืจืืกืืึทืจื ืื ืึทื ืึทืืืกืืก ืคืึทืกืข.
ืืึทืื ืึท ืจืฉืืื ืคืื ืึทืืข ืงืึทื ืึทืจืืขืก ืืื ืืืื ืงื ืืื:
watch kubectl get canaries --all-namespaces
NAMESPACE NAME STATUS WEIGHT LASTTRANSITIONTIME
test podinfo Progressing 15 2019-01-16T14:05:07Z
prod frontend Succeeded 0 2019-01-15T16:15:07Z
prod backend Failed 0 2019-01-14T17:05:07Z
ืืืื ืืืจ ืืึธื ืขื ืืืืึทืื Slack ื ืึธืืืึทืคืึทืงืืืฉืึทื ื, ืืืจ ืืืขื ืืึทืงืืืขื ืื ืคืืืืขื ืืข ืึทืจืืืงืืขื:
ืึธืืึทืืึทืืืง ืจืึธืืืืึทืง
ืืขืฉืึทืก ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก, ืืืจ ืงืขื ืขื ืืืฉืขื ืขืจืืื ืกืื ืืขืืืฉ HTTP 500 ืขืจืจืึธืจืก ืืื ืืืื ืขื ืืคืขืจ ืืืืืึทื ืกื ืฆื ืงืึธื ืืจืึธืืืจื ืฆื Flagger ืืืขื ืืึทืืื ืื ืืืคึผืืืืืึทื ื.
ืฉืึทืคึฟื ืึท ืคึผืจืึธืืข ืคึผืึธื ืืื ืืึธื ืื ืคืืืืขื ืืข ืืื ืขืก:
kubectl -n test run tester
--image=quay.io/stefanprodan/podinfo:1.2.1
-- ./podinfo --port=9898
kubectl -n test exec -it tester-xx-xx sh
ืืืฉืขื ืขืจืืืืื ื ืืืืคึผ 500 ืขืจืจืึธืจืก:
watch curl http://podinfo-canary:9898/status/500
ืคืึทืจืืึทืืื ืืืจ:
watch curl http://podinfo-canary:9898/delay/1
ืืืขื ืื ื ืืืขืจ ืคืื ืืืจืืคืึทื ืืฉืขืงืก ืจืืืฉืึทื ืึท ืฉืืืขื, ืคืึทืจืงืขืจ ืืื ืจืึทืืืื ืฆืืจืืง ืฆื ืื ืขืจืฉืืืง ืงืึทื ืึทื, ืื ืงืึทื ืึทืจื ืืื ืกืงืืืื ืฆื ื ืื, ืืื ืื ืืืคึผืืืืืึทื ื ืืื ืื ืืขืฆืืืื ื ืืื ื ืื ืึทื ืืขืจืฉ.
ืงืึทื ืึทืจื ืขืจืจืึธืจืก ืืื ืืืืืึทื ืกื ืกืคึผืืืงืก ืืขื ืขื ืืึธืื ืืื Kubernetes events ืืื ืจืขืงืึธืจืืขื ืืืจื Flagger ืืื JSON ืคึฟืึธืจืืึทื:
kubectl -n istio-system logs deployment/flagger -f | jq .msg
Starting canary deployment for podinfo.test
Advance podinfo.test canary weight 5
Advance podinfo.test canary weight 10
Advance podinfo.test canary weight 15
Halt podinfo.test advancement success rate 69.17% < 99%
Halt podinfo.test advancement success rate 61.39% < 99%
Halt podinfo.test advancement success rate 55.06% < 99%
Halt podinfo.test advancement success rate 47.00% < 99%
Halt podinfo.test advancement success rate 37.00% < 99%
Halt podinfo.test advancement request duration 1.515s > 500ms
Halt podinfo.test advancement request duration 1.600s > 500ms
Halt podinfo.test advancement request duration 1.915s > 500ms
Halt podinfo.test advancement request duration 2.050s > 500ms
Halt podinfo.test advancement request duration 2.515s > 500ms
Rolling back podinfo.test failed checks threshold reached 10
Canary failed! Scaling down podinfo.test
ืืืื ืืืจ ืืึธืื ืขื ืืืืึทืื Slack ื ืึธืืืึทืคืึทืงืืืฉืึทื ื, ืืืจ ืืืขื ืืึทืงืืืขื ืึท ืึธื ืืึธื ืืืขื ืื ืืขืจืืื ืคึฟืึทืจ ืงืึทืืคึผืืืืื ื ืึธืืขืจ ืืขืจืืจืืืื ืื ืืึทืงืกืืืื ื ืืืขืจ ืคืื ืืืจืืคืึทื ืืืจืืืื ืืื ืึทื ืึทื ืึทืืืกืืก ืืื ืืงืกืืืื:
ืืื ืืกืงื ื
ืคืืืกื ืืืง ืึท ืกืขืจืืืืก ืืขืฉ ืืื Istio ืืืืฃ ืฉืคึผืืฅ ืคืื Kubernetes ืืืขื ืฆืืฉืืขืื ืึธืืึทืืึทืืืง ืืขืืจืืงืก, ืืึธืืก ืืื ืืึธืืก, ืึธืืขืจ ืืืคึผืืืืื ื ืืืขืจืงืืึธืืื ื ืึธื ืืขืคึผืขื ืืก ืืืืฃ ืคืื ืืจืืืกื ืืืง ืืืฉืืจืื. Flagger ืืืื ืฆื ืืืืฉื ืืขื ืืืจื ืึทืืื ื Istio ืงืืืคึผืึทืืืืึทืืื
ืคืืึทืืืขืจ ืืื ืงืึทืืคึผืึทืืึทืืึทื ืืื ืงืืื ืกื / ืงืึธืืคึผืึทืงืืืืกืง ืืืืืื ื ืคึฟืึทืจ Kubernetes, ืืื ืงืึทื ืึทืจื ืึทื ืึทืืืกืืก ืงืขื ืขื ืืืื ืืืืื ืขืงืกืืขื ืืขื ืืื
ืคืืึทืืขืจ ืืขืฉืืืฆื
ืืืื ืืืจ ืืึธื ืคึฟืืจืืืืื ืฆื ืคึฟืึทืจืืขืกืขืจื Flagger, ืืืืข ืคืึธืจืืืืื ืึทื ืึทืจืืืกืืขืื ืึธืืขืจ PR ืืืืฃ GitHub ืืื
ืืึทื ืง
ืืงืืจ: www.habr.com