istio收集Metrics和日志信息

1.切换到istio根目录

cd /data/istio/istio-0.7.1

2.安装prometheus

kubectl apply -f install/kubernetes/addons/prometheus.yaml

3.创建收集数据的模板

# Configuration for metric instances
apiVersion: "config.istio.io/v1alpha2"
kind: metric
metadata:
  name: doublerequestcount
  namespace: istio-system
spec:
  value: "2" # count each request twice
  dimensions:
    source: source.service | "unknown"
    destination: destination.service | "unknown"
    message: '"twice the fun!"'
  monitored_resource_type: '"UNSPECIFIED"'
---
# Configuration for a Prometheus handler
apiVersion: "config.istio.io/v1alpha2"
kind: prometheus
metadata:
  name: doublehandler
  namespace: istio-system
spec:
  metrics:
  - name: double_request_count # Prometheus metric name
    instance_name: doublerequestcount.metric.istio-system # Mixer instance name (fully-qualified)
    kind: COUNTER
    label_names:
    - source
    - destination
    - message
---
# Rule to send metric instances to a Prometheus handler
apiVersion: "config.istio.io/v1alpha2"
kind: rule
metadata:
  name: doubleprom
  namespace: istio-system
spec:
  actions:
  - handler: doublehandler.prometheus
    instances:
    - doublerequestcount.metric
---
# Configuration for logentry instances
apiVersion: "config.istio.io/v1alpha2"
kind: logentry
metadata:
  name: newlog
  namespace: istio-system
spec:
  severity: '"warning"'
  timestamp: request.time
  variables:
    source: source.labels["app"] | source.service | "unknown"
    user: source.user | "unknown"
    destination: destination.labels["app"] | destination.service | "unknown"
    responseCode: response.code | 0
    responseSize: response.size | 0
    latency: response.duration | "0ms"
  monitored_resource_type: '"UNSPECIFIED"'
---
# Configuration for a stdio handler
apiVersion: "config.istio.io/v1alpha2"
kind: stdio
metadata:
  name: newhandler
  namespace: istio-system
spec:
 severity_levels:
   warning: 1 # Params.Level.WARNING
 outputAsJson: true
---
# Rule to send logentry instances to a stdio handler
apiVersion: "config.istio.io/v1alpha2"
kind: rule
metadata:
  name: newlogstdio
  namespace: istio-system
spec:
  match: "true" # match for all requests
  actions:
   - handler: newhandler.stdio
     instances:
     - newlog.logentry
---

# Configuration for a metric measuring bytes sent from a server
# to a client
apiVersion: "config.istio.io/v1alpha2"
kind: metric
metadata:
  name: mongosentbytes
  namespace: default
spec:
  value: connection.sent.bytes | 0 # uses a TCP-specific attribute
  dimensions:
    source_service: source.service | "unknown"
    source_version: source.labels["version"] | "unknown"
    destination_version: destination.labels["version"] | "unknown"
  monitoredResourceType: '"UNSPECIFIED"'
---
# Configuration for a metric measuring bytes sent from a client
# to a server
apiVersion: "config.istio.io/v1alpha2"
kind: metric
metadata:
  name: mongoreceivedbytes
  namespace: default
spec:
  value: connection.received.bytes | 0 # uses a TCP-specific attribute
  dimensions:
    source_service: source.service | "unknown"
    source_version: source.labels["version"] | "unknown"
    destination_version: destination.labels["version"] | "unknown"
  monitoredResourceType: '"UNSPECIFIED"'
---
# Configuration for a Prometheus handler
apiVersion: "config.istio.io/v1alpha2"
kind: prometheus
metadata:
  name: mongohandler
  namespace: default
spec:
  metrics:
  - name: mongo_sent_bytes # Prometheus metric name
    instance_name: mongosentbytes.metric.default # Mixer instance name (fully-qualified)
    kind: COUNTER
    label_names:
    - source_service
    - source_version
    - destination_version
  - name: mongo_received_bytes # Prometheus metric name
    instance_name: mongoreceivedbytes.metric.default # Mixer instance name (fully-qualified)
    kind: COUNTER
    label_names:
    - source_service
    - source_version
    - destination_version
---
# Rule to send metric instances to a Prometheus handler
apiVersion: "config.istio.io/v1alpha2"
kind: rule
metadata:
  name: mongoprom
  namespace: default
spec:
  match: context.protocol == "tcp"
         && destination.service == "mongodb.default.svc.cluster.local"
  actions:
  - handler: mongohandler.prometheus
    instances:
    - mongoreceivedbytes.metric
    - mongosentbytes.metric

执行命令：

istioctl create -f new_telemetry.yaml

istioctl create -f tcp_telemetry.yaml

为了测试支持收集tcp metric数据：

kubectl apply -f <(istioctl kube-inject -f samples/bookinfo/kube/bookinfo-ratings-v2.yaml)

kubectl apply -f <(istioctl kube-inject -f samples/bookinfo/kube/bookinfo-db.yaml)

istioctl create -f samples/bookinfo/kube/route-rule-ratings-db.yaml

4.测试

1）访问bookinfo事例

http://192.168.181.99:32693/productpage

2）查看prometheus ui