Logging, Monitoring & Traicing

- ENV NODE_ENV production
...

- ADD package*.json /home/node/
- Add dist/ /home/node/dist/
+ ADD . /home/node/
+ RUN npm install && npm run build
+ ENV NODE_ENV production

- export const authorsBaseUrl = 'http://authors:3000/api/v1';
- export const booksBaseUrl ='http://books:3000/api/v1';
+ export const authorsBaseUrl = process.env.URL_BASE_AUTHORS || 'http://authors:3000/api/v1';
+ export const booksBaseUrl = process.env.URL_BASE_BOOKS || 'http://books:3000/api/v1';

version: '3.7'

services:

  authors:
    image: butuzov/authors:v1
    build:
      context: ./services/authors/v1
      dockerfile: Dockerfile
    ports: [ 8082:3000 ]
    environment:
      PORT: 3000

  books:
    image: butuzov/books:v1
    build:
      context: ./services/books/v1
      dockerfile: Dockerfile
    ports: [ 8081:3000 ]
    environment:
      PORT: 3000

  front-end:
    image: butuzov/frontend:v1
    build:
      context: ./services/frontend/v1
      dockerfile: Dockerfile
    ports: [ 8080:3000 ]
    environment:
      PORT: 3000
      URL_BASE_AUTHORS: http://authors:3000/api/v1
      URL_BASE_BOOKS: http://books:3000/api/v1
    restart: on-failure
    depends_on:
    - "books"
    - "authors"

docker-compose up -d
docker-compose ps
curl -s http://localhost:8082/api/v1/authors | jq  '.[].lastName'
curl -s http://localhost:8081/api/v1/books | jq  '.[].title'
curl -s http://localhost:8080/api/v1/dashboard/ | jq '.authors[].firstName'
curl -s http://localhost:8080/api/v1/dashboard/ | jq '.books[].title'

./build-and-publish-images.sh
# as result 6 images published to docker hub.
# (typescript) butuzov/demoapp-authors:v1
# (go)         butuzov/demoapp-authors:v2
# (typescript) butuzov/demoapp-books:v1
# (go)         butuzov/demoapp-books:v2
# (typescript) butuzov/emoapp-frontend:v1
# (go)         butuzov/emoapp-frontend:v2

> k apply -f k8s/namespace.yaml
namespace/istio-course created
> k label namespace istio-course istio-injection=enabled
namespace/istio-course labeled
> k apply -f k8s/deployments/ 
service/authors created
serviceaccount/servicemesh-authors created
deployment.apps/authors-v1 created
deployment.apps/authors-v2 created
service/books created
serviceaccount/servicemesh-books created
deployment.apps/books-v1 created
deployment.apps/books-v2 created
service/frontend created
serviceaccount/servicemesh-frontend created
deployment.apps/frontend-v1 created
deployment.apps/frontend-v2 created
> k get pods,deployments,svc
NAME                               READY   STATUS    RESTARTS   AGE
pod/authors-v1-6c87dd847-wzkd2     2/2     Running   0          3m54s
pod/authors-v2-b95b8fc4f-llvh4     2/2     Running   0          3m53s
pod/books-v1-586bff9c8f-kzksd      2/2     Running   0          3m52s
pod/books-v2-69d6c56c99-bgkxx      2/2     Running   0          3m53s
pod/frontend-v1-598f55fdd7-8pz6p   2/2     Running   0          3m52s
pod/frontend-v2-b97dcd96f-l8cth    2/2     Running   0          3m52s

NAME                          READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/authors-v1    1/1     1            1           3m54s
deployment.apps/authors-v2    1/1     1            1           3m54s
deployment.apps/books-v1      1/1     1            1           3m53s
deployment.apps/books-v2      1/1     1            1           3m53s
deployment.apps/frontend-v1   1/1     1            1           3m53s
deployment.apps/frontend-v2   1/1     1            1           3m53s

NAME               TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)          AGE
service/authors    LoadBalancer   10.110.18.98    <pending>     3000:30051/TCP   3m54s
service/books      LoadBalancer   10.111.195.13   <pending>     3000:30667/TCP   3m54s
service/frontend   LoadBalancer   10.108.74.203   <pending>     3000:30791/TCP   3m53s

 > k apply -f k8s/gateway/course-ingress-controller.yml
Warning: networking.k8s.io/v1beta1 Ingress is deprecated in v1.19+, unavailable in v1.22+; use networking.k8s.io/v1 Ingress
ingress.networking.k8s.io/course-istio-gateway created

 > kubectl get ingress
NAME                   CLASS    HOSTS   ADDRESS   PORTS   AGE
course-istio-gateway   <none>   *                 80      29s
 > k apply -f k8s/gateway/course-gateway-controller.yml
gateway.networking.istio.io/course-frontend-gateway created
virtualservice.networking.istio.io/course-istio created
 > k get gateway
NAME                      AGE
course-frontend-gateway   6s

> export INGRESS_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].nodePort}')
> export INGRESS_HOST=$(minikube ip)

{"authors":[{"Id":"1","FirstName":"Loreth Anne","LastName":"White","Born":"South Africa"},{"Id":"2","FirstName":"Lisa","LastName":"Regan","Born":"USA"},{"Id":"3","FirstName":"Ty","LastName":"Patterson","Born":"USA"},{"Id":"4","FirstName":"Sue","LastName":"Burke","Born":"USA"},{"Id":"5","FirstName":"Aliya","LastName":"Whiteley","Born":"UK"},{"Id":"6","FirstName":"Yoon Ha","LastName":"Lee","Born":"USA"}],"books":[{"title":"Ninefox Gambit","authorId":"6","genres":["Novel","Science Fiction"]},{"title":"Raven Stratagem","authorId":"6","genres":["Science Fiction","Fantasy Fiction"]},{"title":"Revenant Gun","authorId":"6","genres":["Science Fiction","Adventure fiction"]},{"title":"Semiosis: A Novel","authorId":"South Africa","genres":["Novel","Science Fiction","Space opera","Hard science fiction"]},{"title":"The Loosening Skin","authorId":"5","genres":["Science Fiction"]}]}