Example CRUD Application

Getting Started

Running Locally

First, install the dependencies

npm install

A Postgres DB is needed, so if you are using Docker, then you can start a postgres db easily.

docker run --name os-postgres-db -e POSTGRESQL_USER=luke -e POSTGRESQL_PASSWORD=secret -e POSTGRESQL_DATABASE=my_data -d -p 5432:5432 centos/postgresql-10-centos7

In this example, the db user is luke, the password is secret and the database is my_data

You can then start the application like this:

DB_USERNAME=luke DB_PASSWORD=secret ./bin/www

Then go to http://localhost:8080

Running on Openshift

First, make sure you have an instance of Openshift setup and are logged in using oc login.

Then create a new project using the oc commands

oc new-project fun-node-fun

For this example, you will also need a postgres db running on your Openshift cluster.

oc new-app -e POSTGRESQL_USER=luke -ePOSTGRESQL_PASSWORD=secret -ePOSTGRESQL_DATABASE=my_data centos/postgresql-10-centos7 --name=my-database

Then run npm run openshift to deploy your app

Run the following command to show the newly exposed route that you can navigate:

oc get route nodejs-rest-http-crud
NAME                    HOST/PORT                                        PATH   SERVICES                PORT   TERMINATION   WILDCARD
nodejs-rest-http-crud   nodejs-rest-http-crud-opentel.apps-crc.testing          nodejs-rest-http-crud   8080                 None

Running on Openshift with traces enabled

Log in with kubeadmin and install the OpenShift Distributed Tracing Platform Operator and OpenShift Distributed Tracing Data Collection Operator (Technology Preview) via operator hub.

Then create a new project using the oc commands

oc new-project opentel

Give to developer user admin rights on the project

oc policy add-role-to-user admin developer -n opentel

Create a Jaeger instance

oc apply -f tracing/jaeger.yml

Create an OpenTelemetry instance

oc apply -f tracing/opentel-collector.yml