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Snap plugin processor - tag

Snap plugin intended to process data and add tags to the data.

Please notice that tags can be added also through configuration in task manifest (for details see documentation) and not every Snap publisher plugin support tagging.

  1. Getting Started
  1. Documentation
  1. Community Support
  2. Contributing
  3. License
  4. Acknowledgements


Download tag plugin binary:

You can get the pre-built binaries for your OS and architecture from the plugin's GitHub Releases page. Download the plugin from the latest release and load it into snapteld (/opt/snap/plugins is the default location for Snap packages).

To build the plugin binary:


Clone repo into $GOPATH/src/github/intelsdi-x/:

$ git clone<yourGithubID>/snap-plugin-processor-tag

Build the plugin by running make in repo:

$ make

This builds the plugin in ./build

Configuration and Usage




Example running psutil plugin, tag processor, and writing data into a file.

Documentation for Snap collector psutil plugin can be found here

In one terminal window, open the Snap daemon :

$ snapteld -t 0 -l 1

The option "-l 1" it is for setting the debugging log level and "-t 0" is for disabling plugin signing.

In another terminal window:

Download and load collector, processor and publisher plugins

$ wget
$ wget
$ wget
$ chmod 755 snap-plugin-*
$ snaptel plugin load snap-plugin-collector-psutil
$ snaptel plugin load snap-plugin-publisher-file
$ snaptel plugin load snap-plugin-processor-tag

See available metrics for your system

$ snaptel metric list

Create a task file. For example, psutil-tag-file.json:

  "version": 1,
  "schedule": {
    "type": "simple",
    "interval": "1s"
  "workflow": {
    "collect": {
      "metrics": {
        "/intel/psutil/load/load1": {},
        "/intel/psutil/load/load5": {},
        "/intel/psutil/load/load15": {},
        "/intel/psutil/vm/free": {},
        "/intel/psutil/vm/used": {}
      "process": [
          "plugin_name": "tag",
          "config": {
            "tags": "rack1:rack,datacenter:dublin,experiment:1"
          "publish": [
              "plugin_name": "file",
              "config": {
                "file": "/tmp/published_tag.log"

Start task:

$ snaptel task create -t psutil-tag-file.json
Using task manifest to create task
Task created
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850
Name: Task-02dd7ff4-8106-47e9-8b86-70067cd0a850
State: Running

See realtime output from snaptel task watch <task_id> (CTRL+C to exit)

snaptel task watch 02dd7ff4-8106-47e9-8b86-70067cd0a850

This data is published to a file /tmp/published_tag.log per task specification

Stop task:

$ snaptel task stop 02dd7ff4-8106-47e9-8b86-70067cd0a850
Task stopped:
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850


There isn't a current roadmap for this plugin, but it is in active development. As we launch this plugin, we do not have any outstanding requirements for the next release.

If you have a feature request, please add it as an issue and/or submit a pull request.

Community Support

This repository is one of many plugins in Snap, a powerful telemetry framework. See the full project at To reach out to other users, head to the main framework


We love contributions!

There's more than one way to give back, from examples to blogs to code updates. See our recommended process in


Snap, along with this plugin, is an Open Source software released under the Apache 2.0 License.


And thank you! Your contribution, through code and participation, is incredibly important to us.

This software has been contributed by MIKELANGELO, a Horizon 2020 project co-funded by the European Union.


Process snap metrics and add tags to label the data




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