I have a simple api I am trying to use in GCP to get the hang of it. I create a pod then a service with a load balancer but I can't hit an external endpoint IP am I missing a step?

Added A firewall rule as well

gcloud compute firewall-rules create allow-sample-api-lb --allow=tcp:31000

Pod Config

apiVersion: v1
kind: Pod
metadata:
  name: "sample-api-lx"
  labels:
    app: sample-api-lx
spec:
  containers:
    - name: sample-api-lx
      image: {image}     
      ports:
        - name: http
          containerPort: 80
      resources:
        limits:
          cpu: 0.2
          memory: "365Mi"

Service Config

kind: Service
apiVersion: v1
metadata:
  name: "sample-api-lx"
spec:
  type: LoadBalancer
  selector:
    app: "sample-api-lx"
  ports:
    - protocol: "TCP"
      port: 80
      targetPort: 80 
      nodePort: 31000  

DockerFile

FROM mcr.microsoft.com/dotnet/core/sdk:2.2 AS build-env
WORKDIR /app
EXPOSE 80
EXPOSE 443

# Copy csproj and restore as distinct layers
COPY *.csproj ./
RUN dotnet restore

# Copy everything else and build
COPY . ./
RUN dotnet publish -c Release -o out

# Build runtime image
FROM mcr.microsoft.com/dotnet/core/aspnet:2.2
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "Api.dll"]