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