services

OpenFaaS Services

Inventory

• db-inserter

  Reads an MQTT message and inserts it into a Postgres table

  The following connects the function to the MQTT topic via the Emitter broker:

      annotations:
      topic: "drone-position/"

• db-reader

  Reads positions of the drones ingested so far

• render-map

  Static webpage that renders mapbox locations using the db-reader endpoint

Deployment

• You will need to create a secret for Postgres with the login information:

  export USER="postgres"
  export PASS=""
  export HOST="postgresql.default.svc.cluster.local"
  
  kubectl create secret generic -n openfaas-fn db \
    --from-literal db-username="$USER" \
    --from-literal db-password="$PASS" \
    --from-literal db-host="$HOST"

• Deploy the stack

  cd openfaas/services
  
  faas-cli deploy

  Use --filter NAME to deploy only one function at a time

• Rebuild the stack if you want

  Use an environment variable to specify your own Docker Hub Account as per the docs

  export DOCKER_USER="some-user"
  
  faas-cli up