Log the messages published on a MQTT topic into a local file
Edit the settings.json configuration file.
docker run -ti --name mqtt-logger campusiot/mqtt-logger:latest
docker exec -it mqtt-logger /usr/bin/tail -f /data/msg.log
mosquitto_pub -h test.mosquitto.org -t campusiot/test \
-m '{"deveui":"0123456789abcdef","temperature":25.6,"batteryLevel":95}'
Alternatively you can use volumes to make the changes persistent and change the configuration.
mkdir -p ~/configuration/mqtt-logger/
mkdir -p ~/data/mqtt-logger/
# For TESTING purposes you can use chmod -R 777 ~/data/mqtt-logger/*
# Better use "-u" with a valid user id on your docker host
docker run -ti \
-v ~/configuration/mqtt-logger/settings.json:/usr/src/app/settings.json:ro \
-v ~/data/mqtt-logger/:/data/ \
--name mqtt-logger campusiot/mqtt-logger:latest
Volumes: /data, /usr/src/app/settings.json
Using Docker Volumes for persistence.
Create a named volume:
docker volume create --name mqtt_logger_data
Now it can be attached to docker by using -v mqtt_logger_data:/data in the
Example above. Be aware that the permissions within the volumes
are most likely too restrictive.
mkdir -p ~/configuration/mqtt-logger/
mkdir -p ~/data/mqtt-logger/
cp ./settings.json ~/configuration/mqtt-logger/
docker-compose -f docker-compose.yml up
docker exec -it mqtt-logger_mqtt-logger_1 /usr/bin/tail -f /data/msg.log
mosquitto_pub -h test.mosquitto.org -t campusiot/test \
-m '{"deveui":"0123456789abcdef","temperature":25.6,"batteryLevel":95}'
git clone https://github.com/campusiot/mqtt-logger.git
cd mqtt-logger
docker build -f Dockerfile -t campusiot/mqtt-logger:latest .
# For saving the container image
mkdir -p ~/docker-images
docker save campusiot/mqtt-logger:latest | gzip > ~/docker-images/mqtt-logger.tgz
# For loading the saved container image
gunzip -c ~/docker-images/mqtt-logger.tgz | docker load
mqtt-logger was written by:
- Didier Donsez | GitHub
- With contributions from:
- Vivien Quéma
License: EPLv2
Contact: Didier Donsez