Running Jaeger on Kubernetes

[Riaz Mohamed]

Hello All

I am trying to run my app on kubernetes with trace logs going into jaeger

I did this and i am able to get to the UI

kubectl create -f https://raw.githubusercontent.com/jaegertracing/jaeger-kubernetes/master/all-in-one/jaeger-all-in-one-template.yml

I have the following two services 

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

  name: order

  annotations:

    "sidecar.jaegertracing.io/inject": "true"

spec:

  replicas: 3

  template:

    metadata:

      labels:

        service: order

      annotations:

        prometheus.io/scrape: "true"

    spec:

      containers:

      - image: riazvm/publicrepo:orderservice3.0

        name: order

        ports:

        - name: http

          containerPort: 8080

        - name: prometheus-jmx

          containerPort: 9099

        env:

          - name: JAEGER_SERVICE_NAME

            value: order

          - name: JAEGER_AGENT_HOST

            value: jaeger-agent

          - name: JAEGER_SAMPLER_TYPE

            value: const

          - name: JAEGER_SAMPLER_PARAM

            value: "1"

          - name: JAEGER_REPORTER_LOG_SPANS

            value: "true"

          - name: JAEGER_TAGS

            value: "version=${VERSION}"

          - name: OPENTRACING_METRICS_EXPORTER_HTTP_PATH

            value: "/metrics"

          - name: ACCOUNTMGR_URL

            value: "http://account:8080"

---

kind: Service

apiVersion: v1

metadata:

  name: order

  labels:

    service: order

spec:

  type: LoadBalancer

  selector:

    service: order

  ports:

  - name: http

    port: 8080

And

apiVersion: extensions/v1beta1

kind: Deployment

metadata:

  name: account

spec:

  replicas: 3

  template:

    metadata:

      labels:

        service: account

      annotations:

        prometheus.io/scrape: "true"

    spec:

      containers:

      - name: account

        image: riazvm/publicrepo:accountservice3.0

        ports:

        - name: http

          containerPort: 8080

        - name: prometheus-jmx

          containerPort: 9099

        env:

          - name: JAEGER_SERVICE_NAME

            value: account

          - name: JAEGER_AGENT_HOST

            value: jaeger-all-in-one-agent

          - name: JAEGER_SAMPLER_TYPE

            value: const

          - name: JAEGER_SAMPLER_PARAM

            value: "1"

          - name: JAEGER_REPORTER_LOG_SPANS

            value: "true"

          - name: JAEGER_TAGS

            value: "version=${VERSION}"

          - name: OPENTRACING_METRICS_EXPORTER_HTTP_PATH

            value: "/metrics"

          - name: PRICING_URL

            value: "http://accounts:8080"

---

kind: Service

apiVersion: v1

metadata:

  name: account

  labels:

    service: account

spec:

  type: LoadBalancer

  selector:

    service: account

  ports:

  - name: http

    port: 8080

The services are calling each other, but for some reason the services and logs are not showing up in my UI. I would greatly appreciate if anyone could help on this. Kind of important for a client demo.

thanks

Riaz

[Riaz Mohamed]

My instrumentation works well and the container logs show the following

2019-05-21 18:45:28.402  INFO 1 --- [nio-8080-exec-1] i.j.internal.reporters.LoggingReporter   : Span reported: a757a84997c1f974:ea8ba57d4d83c0f0:a757a84997c1f974:1 - GET

2019-05-21 18:45:28.513  INFO 1 --- [nio-8080-exec-1] i.j.internal.reporters.LoggingReporter   : Span reported: a757a84997c1f974:a757a84997c1f974:0:1 - sell

[Pavol Loffay]

Hi Riaz,

if your instrumentation works well and Jaeger is successfully deployed it means that reporting configuration in your app is misconfigured.

Environmental variable JAEGER_AGENT_HOST should point to the jaeger-agent service or localhost if there is a jaeger-agent side car container. I think in your case just change it to `jaeger-agent` - see https://github.com/jaegertracing/jaeger-kubernetes/blob/master/all-in-one/jaeger-all-in-one-template.yml#L111