Flagger Install on Alibaba ServiceMesh

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This guide walks you through setting up Flagger on Alibaba ServiceMesh.
Prerequisites
Created an ACK(Alibabacloud Container Service for Kubernetes) cluster instance.
Created an ASM(Alibaba ServiceMesh) instance, and added ACK cluster.
Variables declaration
$ACK_CONFIG: the kubeconfig file path of ACK, which be treated as$HOME/.kube/config in the rest of guide.
$MESH_CONFIG: the kubeconfig file path of ASM.
$ISTIO_RELEASE: see https://github.com/istio/istio/releases​
$FLAGGER_SRC: see https://github.com/fluxcd/flagger​
Install Prometheus
Install Prometheus:
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kubectl apply -f $ISTIO_RELEASE/samples/addons/prometheus.yaml
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it' same with the below cmd:
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kubectl --kubeconfig "$ACK_CONFIG" apply -f $ISTIO_RELEASE/samples/addons/prometheus.yaml
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Append the below configs to scrape_configs in prometheus configmap, to support telemetry:
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scrape_configs:
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# Mixer scrapping. Defaults to Prometheus and mixer on same namespace.
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- job_name: 'istio-mesh'
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  kubernetes_sd_configs:
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  - role: endpoints
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    namespaces:
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      names:
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      - istio-system
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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    action: keep
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    regex: istio-telemetry;prometheus
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# Scrape config for envoy stats
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- job_name: 'envoy-stats'
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  metrics_path: /stats/prometheus
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  kubernetes_sd_configs:
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  - role: pod
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_pod_container_port_name]
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    action: keep
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    regex: '.*-envoy-prom'
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  - source_labels: [__address__, __meta_kubernetes_pod_annotation_prometheus_io_port]
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    action: replace
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    regex: ([^:]+)(?::\d+)?;(\d+)
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    replacement: $1:15090
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    target_label: __address__
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  - action: labeldrop
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    regex: __meta_kubernetes_pod_label_(.+)
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  - source_labels: [__meta_kubernetes_namespace]
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    action: replace
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    target_label: namespace
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  - source_labels: [__meta_kubernetes_pod_name]
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    action: replace
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    target_label: pod_name
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- job_name: 'istio-policy'
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  kubernetes_sd_configs:
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  - role: endpoints
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    namespaces:
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      names:
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      - istio-system
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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    action: keep
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    regex: istio-policy;http-policy-monitoring
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- job_name: 'istio-telemetry'
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  kubernetes_sd_configs:
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  - role: endpoints
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    namespaces:
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      names:
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      - istio-system
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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    action: keep
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    regex: istio-telemetry;http-monitoring
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- job_name: 'pilot'
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  kubernetes_sd_configs:
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  - role: endpoints
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    namespaces:
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      names:
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      - istio-system
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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    action: keep
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    regex: istiod;http-monitoring
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  - source_labels: [__meta_kubernetes_service_label_app]
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    target_label: app
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- job_name: 'sidecar-injector'
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  kubernetes_sd_configs:
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  - role: endpoints
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    namespaces:
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      names:
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      - istio-system
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  relabel_configs:
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  - source_labels: [__meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
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    action: keep
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    regex: istio-sidecar-injector;http-monitoring
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Install Flagger
Add Flagger Helm repository:
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helm repo add flagger https://flagger.app
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helm repo update
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Install Flagger's Canary CRD:
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kubectl apply -f $FLAGGER_SRC/artifacts/flagger/crd.yaml
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Deploy Flagger for Alibaba ServiceMesh:
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cp $MESH_CONFIG kubeconfig
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kubectl -n istio-system create secret generic istio-kubeconfig --from-file kubeconfig
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kubectl -n istio-system label secret istio-kubeconfig istio/multiCluster=true
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helm upgrade -i flagger flagger/flagger \
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--namespace=istio-system \
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--set crd.create=false \
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--set meshProvider=istio \
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--set metricsServer=http://prometheus:9090 \
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--set istio.kubeconfig.secretName=istio-kubeconfig \
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--set istio.kubeconfig.key=kubeconfig
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Contents
Prerequisites
Variables declaration
Install Prometheus
Install Flagger