Entry point

Consider the following line described in the dockerfile:

COPY ./entrypoint.sh /opt/orbs/service

• The ORBS-NODE docker orchestrator runs this executable when an ORBS-VM instance is started.

Running the executable at /opt/orbs/service is mandatory. If it is not run, the ORBS-VM container will not start. Please note that "service" is the name of the executable itself, and that is how the docker orchestrator starts the container.

Entrypoint example

As an example, let's write a simple entry point bash executable, which starts a node process.

1. Create entrypoint.sh (sibling to Dockerfile) shell file containing the following:

#!/bin/sh
npm start

2.. Install Entrypoint in Dockerfile

...
# install entry point executable
COPY ./entrypoint.sh /opt/orbs/service
...

3. Continue to HEALTHCHECK

The legacy orbs-v2 service installation spec can be found here