Add InfluxDB/Grafana visualization support #127
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- Adding a version number allows for `abs-mode.el' installable using `package-install-file'. - Adding autoloads ensures that `abs-mode' is loaded when needed.
- Added a module for writing to a InfluxDB using gen_server. - Modified runtime.erl so that the user can enable writing to a InfluxDB with a command line argument. Additional options for specifying the URL and/or database are provided. - These options can be specified using Emacs variables. - A script for running a InfluxDB+Grafana is provided. It is located at `gen/erl/influx-grafana/run_influx_grafana.sh' of a compiled ABS model.
- Rather than writing each measurement to the database separately, collect measurements while writing to the database and write the collected measurements in bulk. - Use gen_fsm in favor of gen_server. There are two states, namely `ready_to_send' and `wait_for_response'. In a ready state, a new measurement will be sent to the database along with previously collected measurements. In a waiting state measurements are simply collected.
- A separate function was used for making a synchronous request to the database, which was used on termination. The request might as well be asynchronous, and so the function is removed. - Instead of removing possibly problematic characters from the label of the deployment component, just escape the string.
- Since we mainly run grafana locally, there is no need for having a login. We allowed anonymous users, but failed to make them administrators (i.e. having the privilege to make new dashboards and so on).
rudi
approved these changes
Nov 21, 2016
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This patch enables the erlang backend to write metrics to a running InfluxDB instance, which can be visualized using Grafana. A script
run_influx_grafana.shis provided which starts an InfluxDB and a Grafana instance using Docker:After a short while Grafana will be available at http://localhost:3000, initialized with the InfluxDB datasource and a dashboard showing cpu load. The dashboard is located at
Home -> ABS.While the InfluxDB and Grafana instances are running, the model can be run with option
-ito enable writing to the InfluxDB:$ cd /path/to/gen/erl/absmodel $ run -iA screenshot demonstrating the visualization provided by Grafana:
