Install

https://argoproj.github.io/argo-rollouts/installation/
https://argoproj.github.io/argo-rollouts/features/helm/

https://github.com/argoproj/argo-helm/tree/main/charts/argo-rollouts

Info

.Values.keepCRDs が default: True のため helm uninstall 実行時に CustomResourceDefinition Resourceは残ります

$ kubectl get CustomResourceDefinition | grep argoproj.io
analysisruns.argoproj.io                         2023-01-29T08:45:21Z
analysistemplates.argoproj.io                    2023-01-29T08:45:20Z
clusteranalysistemplates.argoproj.io             2023-01-29T08:45:21Z
experiments.argoproj.io                          2023-01-29T08:45:21Z
rollouts.argoproj.io                             2023-01-29T08:45:21Z

controller install

install with helm

https://github.com/argoproj/argo-helm/tree/main/charts/argo-rollouts

helm repo add argo https://argoproj.github.io/argo-helm
helm upgrade -i argo-rollouts argo/argo-rollouts --namespace argo-rollouts --create-namespace

argo-rollouts controllerが作成されていることを確認

deployment

$ kubectl describe deployments -n argo-rollouts argo-rollouts
Name:               argo-rollouts
Namespace:          argo-rollouts
CreationTimestamp:  Sun, 29 Jan 2023 17:45:21 +0900
Labels:             app.kubernetes.io/component=rollouts-controller
                    app.kubernetes.io/instance=argo-rollouts
                    app.kubernetes.io/managed-by=Helm
                    app.kubernetes.io/name=argo-rollouts
                    app.kubernetes.io/part-of=argo-rollouts
                    app.kubernetes.io/version=v1.4.0
                    helm.sh/chart=argo-rollouts-2.22.1
Annotations:        deployment.kubernetes.io/revision: 1
                    meta.helm.sh/release-name: argo-rollouts
                    meta.helm.sh/release-namespace: argo-rollouts
Selector:           app.kubernetes.io/component=rollouts-controller,app.kubernetes.io/instance=argo-rollouts,app.kubernetes.io/name=argo-rollouts
Replicas:           2 desired | 2 updated | 2 total | 2 available | 0 unavailable
StrategyType:       Recreate
MinReadySeconds:    0
Pod Template:
  Labels:           app.kubernetes.io/component=rollouts-controller
                    app.kubernetes.io/instance=argo-rollouts
                    app.kubernetes.io/name=argo-rollouts
  Service Account:  argo-rollouts
  Containers:
   argo-rollouts:
    Image:       quay.io/argoproj/argo-rollouts:v1.4.0
    Ports:       8090/TCP, 8080/TCP
    Host Ports:  0/TCP, 0/TCP
    Args:
      --leader-elect
    Liveness:     http-get http://:healthz/healthz delay=30s timeout=10s period=20s #success=1 #failure=3
    Readiness:    http-get http://:metrics/metrics delay=15s timeout=4s period=5s #success=1 #failure=3
    Environment:  <none>
    Mounts:       <none>
  Volumes:        <none>
Conditions:
  Type           Status  Reason
  ----           ------  ------
  Available      True    MinimumReplicasAvailable
  Progressing    True    NewReplicaSetAvailable
OldReplicaSets:  <none>
NewReplicaSet:   argo-rollouts-648bff954f (2/2 replicas created)
Events:
  Type    Reason             Age   From                   Message
  ----    ------             ----  ----                   -------
  Normal  ScalingReplicaSet  118s  deployment-controller  Scaled up replica set argo-rollouts-648bff954f to 2

pods

$ kubectl get pods -n argo-rollouts
NAME                             READY   STATUS    RESTARTS   AGE
argo-rollouts-648bff954f-4svmt   1/1     Running   0          4m22s
argo-rollouts-648bff954f-bm994   1/1     Running   0          4m22s

argo-rollouts controller起動時のログを確認

leader election が動作していることを確認

leaderとなったcontroller log

$ kubectl logs -n argo-rollouts argo-rollouts-648bff954f-4svmt
time="2023-01-29T08:46:03Z" level=info msg="Argo Rollouts starting" version=v1.4.0+e40c9fe
time="2023-01-29T08:46:03Z" level=info msg="Creating event broadcaster"
time="2023-01-29T08:46:03Z" level=info msg="Setting up event handlers"
time="2023-01-29T08:46:03Z" level=info msg="Setting up experiments event handlers"
time="2023-01-29T08:46:03Z" level=info msg="Setting up analysis event handlers"
time="2023-01-29T08:46:03Z" level=info msg="Leaderelection get id argo-rollouts-648bff954f-4svmt_01e7fcf9-d81e-4e6b-b311-15706341d8af"
I0129 08:46:03.959656       1 leaderelection.go:248] attempting to acquire leader lease argo-rollouts/argo-rollouts-controller-lock...
time="2023-01-29T08:46:03Z" level=info msg="Starting Healthz Server at 0.0.0.0:8080"
time="2023-01-29T08:46:03Z" level=info msg="Starting Metric Server at 0.0.0.0:8090"
I0129 08:46:03.999015       1 leaderelection.go:258] successfully acquired lease argo-rollouts/argo-rollouts-controller-lock
time="2023-01-29T08:46:03Z" level=info msg="New leader elected: argo-rollouts-648bff954f-4svmt_01e7fcf9-d81e-4e6b-b311-15706341d8af"
time="2023-01-29T08:46:03Z" level=info msg="I am the new leader: argo-rollouts-648bff954f-4svmt_01e7fcf9-d81e-4e6b-b311-15706341d8af"
time="2023-01-29T08:46:03Z" level=info msg="Starting Controllers"
time="2023-01-29T08:46:04Z" level=info msg="Waiting for controller's informer caches to sync"
time="2023-01-29T08:46:04Z" level=info msg="Started controller"
time="2023-01-29T08:46:04Z" level=info msg="Starting analysis workers"
time="2023-01-29T08:46:04Z" level=info msg="Started 30 analysis workers"
time="2023-01-29T08:46:04Z" level=info msg="Starting Experiment workers"
time="2023-01-29T08:46:04Z" level=info msg="Started Experiment workers"
time="2023-01-29T08:46:04Z" level=warning msg="Controller is running."
time="2023-01-29T08:46:04Z" level=info msg="Starting Ingress workers"
time="2023-01-29T08:46:04Z" level=info msg="Starting Service workers"
time="2023-01-29T08:46:04Z" level=info msg="Started Ingress workers"
time="2023-01-29T08:46:04Z" level=info msg="Started Service workers"
time="2023-01-29T08:46:04Z" level=info msg="Starting Rollout workers"
time="2023-01-29T08:46:04Z" level=info msg="Started rollout workers"

leaderではなく待機となったcontroller log

$ kubectl logs -n argo-rollouts argo-rollouts-648bff954f-bm994
time="2023-01-29T08:46:06Z" level=info msg="Argo Rollouts starting" version=v1.4.0+e40c9fe
time="2023-01-29T08:46:07Z" level=info msg="Creating event broadcaster"
time="2023-01-29T08:46:07Z" level=info msg="Setting up event handlers"
time="2023-01-29T08:46:07Z" level=info msg="Setting up experiments event handlers"
time="2023-01-29T08:46:07Z" level=info msg="Setting up analysis event handlers"
time="2023-01-29T08:46:07Z" level=info msg="Leaderelection get id argo-rollouts-648bff954f-bm994_e3f2195c-58be-4086-8d08-1264405dcd59"
I0129 08:46:07.397481       1 leaderelection.go:248] attempting to acquire leader lease argo-rollouts/argo-rollouts-controller-lock...
time="2023-01-29T08:46:07Z" level=info msg="Starting Healthz Server at 0.0.0.0:8080"
time="2023-01-29T08:46:07Z" level=info msg="Starting Metric Server at 0.0.0.0:8090"
time="2023-01-29T08:46:07Z" level=info msg="New leader elected: argo-rollouts-648bff954f-4svmt_01e7fcf9-d81e-4e6b-b311-15706341d8af"

kubectl plugin

https://argoproj.github.io/argo-rollouts/features/kubectl-plugin/

kubectl argo rollouts コマンドを使えるようにする

curl -LO https://github.com/argoproj/argo-rollouts/releases/latest/download/kubectl-argo-rollouts-linux-arm64
chmod +x kubectl-argo-rollouts-linux-arm64
sudo mv kubectl-argo-rollouts-linux-arm64 /usr/local/bin/kubectl-argo-rollouts

$ kubectl argo rollouts version
kubectl-argo-rollouts: v1.4.0+e40c9fe
  BuildDate: 2023-01-09T20:20:38Z
  GitCommit: e40c9fe8a2f7fee9d8ee1c56b4c6c7b983fce135
  GitTreeState: clean
  GoVersion: go1.19.4
  Compiler: gc
  Platform: linux/arm64

UI Dashboard

https://argoproj.github.io/argo-rollouts/dashboard/
https://argoproj.github.io/argo-rollouts/generated/kubectl-argo-rollouts/kubectl-argo-rollouts_dashboard/
https://github.com/argoproj/argo-helm/tree/main/charts/argo-rollouts#ui-dashboard

install

Valuesを追加してhelm installする
- dashboard.enabled
- dashboard.service.type (metallbによるIPアドレスを払い出し、ServiceのLoadBalancer IPアドレスとする)
```
helm upgrade -i argo-rollouts argo/argo-rollouts --namespace argo-rollouts --create-namespace \
  --set dashboard.enabled=true --set dashboard.service.type=LoadBalancer
```

Pod

$ kubectl get pods -n argo-rollouts
NAME                                       READY   STATUS    RESTARTS       AGE
argo-rollouts-648bff954f-4svmt             1/1     Running   1 (4h5m ago)   4h37m
argo-rollouts-648bff954f-bm994             1/1     Running   0              4h37m
argo-rollouts-dashboard-6cc9c45468-2hxlq   1/1     Running   0              12m

Service

$ kubectl get service -n argo-rollouts
NAME                      TYPE           CLUSTER-IP    EXTERNAL-IP     PORT(S)          AGE
argo-rollouts-dashboard   LoadBalancer   10.32.0.153   192.168.3.203   3100:30809/TCP   51s

$ kubectl describe service -n argo-rollouts
Name:                     argo-rollouts-dashboard
Namespace:                argo-rollouts
Labels:                   app.kubernetes.io/component=rollouts-dashboard
                          app.kubernetes.io/instance=argo-rollouts
                          app.kubernetes.io/managed-by=Helm
                          app.kubernetes.io/name=argo-rollouts
                          app.kubernetes.io/part-of=argo-rollouts
                          app.kubernetes.io/version=v1.4.0
                          helm.sh/chart=argo-rollouts-2.22.1
Annotations:              meta.helm.sh/release-name: argo-rollouts
                          meta.helm.sh/release-namespace: argo-rollouts
Selector:                 app.kubernetes.io/component=rollouts-dashboard,app.kubernetes.io/instance=argo-rollouts,app.kubernetes.io/name=argo-rollouts
Type:                     LoadBalancer
IP Family Policy:         SingleStack
IP Families:              IPv4
IP:                       10.32.0.153
IPs:                      10.32.0.153
LoadBalancer Ingress:     192.168.3.203
Port:                     dashboard  3100/TCP
TargetPort:               3100/TCP
NodePort:                 dashboard  30809/TCP
Endpoints:                <none>
Session Affinity:         None
External Traffic Policy:  Cluster
Events:
  Type    Reason       Age   From                Message
  ----    ------       ----  ----                -------
  Normal  IPAllocated  90s   metallb-controller  Assigned IP ["192.168.3.203"]

ブラウザ