Google-microservice with pyroscope

To use Google-microservice with pyroscope we need to do few steps mentioned below

Retagging Docker Images

Docker images need to build and pushed to repositories. (Note: Even without Retagging the docker Image you can still run Using docker images by beellzrocks)
Dockerfile of each microservice is stored inside their respective folder under the src folder.

Follow these steps:

Example for Email service go to src/emailservice

• Build image

docker build . -t <yourRepository/emailservice:version>

• Push image

docker push <yourRepository/emailservice:version>

Note: For each microservice image that we retag we need to change its image reference in the respective manifest

For the Email service we can find the yaml file inside: kubernetes-manifests/emailservice.yaml

emailservice.yaml

   containers:
      - name: server
        image: beellzrocks/emailservice  #Change the image with your repository tag

Steps to install microservices and profile them using pyroscope

To install the pyroscope we are going to use the helm chart.
Helm must be installed to use the chart. Please refer to Helm's documentation to get started.

Get the Repo of Pyrscope

helm repo add pyroscope-io https://pyroscope-io.github.io/helm-chart

Install the chart:

helm install pyroscope pyroscope-io/pyroscope 

Install microservices

kubectl apply -f kubernetes-manifests/

To view all the pods:

kubectl get pods

To view Pyroscope UI

kubectl port-forward svc/pyroscope 8080:4040

Now you can access pyroscope UI on http://localhost:8080

Changes we did to integrate microservices with pyroscope

Python

Need to change in Dockerfile:

COPY --from=pyroscope/pyroscope:latest /usr/bin/pyroscope /usr/bin/pyroscope
CMD [ "pyroscope", "exec", "python", "email_server.py ]

for changes in kubernetes manifest file ref: Emailservice

.Net

Need to change in Dockerfile:

COPY --from=pyroscope/pyroscope:latest /usr/bin/pyroscope /usr/bin/pyroscope
ENTRYPOINT ["pyroscope", "exec", "-spy-name", "dotnetspy", "/app/cartservice"]

for changes in kubernetes manifest file ref: Cartservice

Go

Changes to be done in main.go

import (
  pyroscope "github.com/pyroscope-io/pyroscope/pkg/agent/profiler"
)

func main() {

  pyroscope.Start(pyroscope.Config{
    ApplicationName: os.Getenv("APPLICATION_NAME"),
    ServerAddress:   os.Getenv("SERVER_ADDRESS"),
  })
  / code here
) 

for changes in kubernetes manifest file ref: Frontend

Microservices we will be profiling using pyroscope

Python:

• Recommendationservice
• Emailservice

Go:

• Frontend
• Productcatalogservice
• Shippingservice
• Checkoutservice

.Net:

• Cartservice