update meep-mosquito docker file and entrypoint

COPY data/mosquitto.conf /mosquitto/config/mosquitto.conf

# Copy additional listener config

COPY data/listener.conf /mosquitto/config/conf.d/listener.conf

# Expose MQTT default port

EXPOSE 1883

# Set custom config

CMD ["/usr/sbin/mosquitto", "-c", "/mosquitto/config/mosquitto.conf"]

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WORKDIR /usr/src/app

COPY ./data /usr/src/app

# Install some libraries

RUN apk update && apk add curl jq

RUN ls -l /usr/src/app

RUN chmod +x /usr/src/app/entrypoint.sh

ENTRYPOINT [ "/usr/src/app/entrypoint.sh" ]

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#!/bin/sh

set -e

SERVICE_NAME="meep-mosquitto"

# Get the namespace from the service account

NAMESPACE=$(cat /var/run/secrets/kubernetes.io/serviceaccount/namespace)

# Get the token from the service account

TOKEN=$(cat /var/run/secrets/kubernetes.io/serviceaccount/token)

echo "Token: $TOKEN"

# Query the Kubernetes API to get the NodePort for the service

NODE_PORT=$(curl -sSk \

  -H "Authorization: Bearer $TOKEN" \

  https://kubernetes.default.svc/api/v1/namespaces/$NAMESPACE/services/$SERVICE_NAME \

  | jq -r '.spec.ports[0].nodePort')

echo "External NodePort exposed for service [$SERVICE_NAME] in namespace [$NAMESPACE] is: $NODE_PORT"

exec /usr/sbin/mosquitto -c /mosquitto/config/mosquitto.conf

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