Difference between revisions of "PowerMeter"

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* https://hub.docker.com/_/influxdb  - well written, helps explain the paths for -v switches
* https://hub.docker.com/_/influxdb  - well written, helps explain the paths for -v switches
* https://runnable.com/docker/docker-compose-networking - networking stuff
* https://runnable.com/docker/docker-compose-networking - networking stuff
* https://github.com/blaineventurine/home-automation-docker - lots of good docker-compose examples
Some Planning:
Some Planning:

Revision as of 12:56, 28 August 2019

ESP32 Programming. The 'new' ESP32 dev boards are preprogrammed with a LUA script. To get an Arduino to load, press and hold the 'Boot' button while uploading the Arduino code. Hold the boot button until finished loading the code.

Docker Notes

Some Planning:

  • mosquitto - can use base image. No customization really required. If moved to cloud, may want to figure out TLS and add passwords, etc.
  • node-red - customize Dockerfile to load modules. Update flows manually.
  • influxdb - need to store data in external volume
  • grafana
  • docker - create bridge, try docker compose to bundle all this stuff
  • cloud - cloud is expensive, but we could move mosquitto, influx and grafana to cloud, use flow in node red to push updates

Cheat sheet

docker ps -a    -lists all containers
docker container prune  -remove all containers in exit status
docker images
docker rm (name) - get rid of a container

Setup the network.

docker network create wwi-net

Interesting to note that we can use the docker names on this network. e.g. the MQTT server can be mqtt.

Some mosquitto help.

mkdir ~/mosquitto/config
mkdir ~/mosquitto/data
mkdir ~/mosquitto/log

Edit ~/mosquitto/config/mosquitto.conf

 persistence true
 persistence_location /mosquitto/data/
 log_dest file /mosquitto/log/mosquitto.log
 allow_anonymous true

docker run --name mqtt -d -p 1883:1883 --net wwi-net -v $(pwd)/mosquitto/config/mosquitto.conf:/mosquitto/config/mosquitto.conf -v $(pwd)/mosquitto/data:/mosquitto/data -v $(pwd)/mosquitto/log:/mosquitto/log eclipse-mosquitto

mosquitto_pub -h -m "test" -t test/switch -d

https://blog.container-solutions.com/understanding-volumes-docker - notes on volumes. The eclipse-mosquitto readme should be more explicit about how to use these volumes. 

Node Red help

git node-red-docker as per this: https://nodered.org/docs/getting-started/docker
Create Dockfile in ~/node-red-docker/v1.0/Dockerfile. I wish I could use Alpine (:slim) :latest is 900MB. Dockerfile:

FROM nodered/node-red-docker:latest


RUN npm install node-red-dashboard
RUN npm install node-red-contrib-influxdb

Then build image:

docker build -f v1.0/Dockerfile -t rpt-nodered:1.0 .

Run to build container:
docker run -d --net wwi-net --name rpt-nodered -p 1880:1880 rpt-nodered:1.0

Once built, start and stop as usual. (docker stop rpt-nodered, docker start rpt-nodered)

Import flows into container via node-red development dashboard. I think these are stored in the container. We'll see when I move the container.

Some influxdb help:

Create directory for data. e.g. ~/influxdb
Pull out the configuration file to the present working directory (PWD) using:

docker run --rm influxdb influxd config > influxdb.conf

Modify config file, if needed.

Create container and run, which uses ~/influxdb.conf and stores data in ~/influxdb

docker run --name rpt-influxdb --net wwi-net -d -p 8086:8086 -v $(pwd)/influxdb/influxdb:/var/lib/influxdb -v $(pwd)/influxdb.conf:/etc/influxdb/influxdb.conf:ro influxdb -config /etc/influxdb/influxdb.conf

Create measurement database:

docker exec -it rpt-influxdb influx

create database meters