OpenTelemetry Infinity

What is it  •   Premises  •   Command Line Interface  •   REST API  •   Policy RFC

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What is it

Opentelemetry Infinity provide otel-collector-contrib instances through a simple REST API using a policy mechanism. Each policy spin up a new otelcol-contrib process running the configuration provided by the policy.

Project premises

1. Single binary: otlpinf embeds otelcol-contrib in its binary. Therefore, only one static binary is provided.

2. No persistence: opentelemetry-infinity stores data in memory and in temporary files only. This adds a new paradigm to opentelemetry-collector that is expected to run over a persisted config file as default. If you are looking for a opentelemetry orchestrator as the way it was planned to perform, you should try the official opentelemetry-operator.

3. Compatibility: opentelemetry-infinity is basically a wrapper over the official opentelemetry-collector which has not released a version 1.0 yet, i.e., breaking changes are expected. Any changes that occurs on its CLI will be reflected in this project.

4. Versioning: as opentelemetry-infinity is a wrapper over the official collector, it follows the official opentelemetry-collector version. opentelemetry-infinity pipeline does releases automatically on every new otelcol-contrib.

Docker Image

You can download and run using docker image:

docker run --net=host ghcr.io/leoparente/opentelemetry-infinity run

Command Line Interface (CLI)

Opentelemetry Infinity allows some start up configuration that is listed below. It disables opentelemetry-collector self telemetry by default to avoid port conflict. If you want to enable it back, be aware to handle it properly when starting more that one otelcol-contrib, i.e., applying more than one policy.

docker run --net=host ghcr.io/leoparente/opentelemetry-infinity run --help

Run opentelemetry-infinity

Usage:
  opentelemetry-infinity run [flags]

Flags:
  -d, --debug                Enable verbose (debug level) output
  -h, --help                 help for run
  -s, --self_telemetry       Enable self telemetry for collectors. It is disabled by default to avoid port conflict
  -a, --server_host string   Define REST Host (default "localhost")
  -p, --server_port uint     Define REST Port (default 10222)

REST API

The default otlpinf address is localhost:10222. to change that you can specify host and port when starting otlpinf:

docker run --net=host ghcr.io/leoparente/opentelemetry-infinity run -a {host} -p {port}

Routes (v1)

otlpinf is aimed to be simple and straightforward.

Get runtime and capabilities information

GET /api/v1/status (gets otlpinf runtime data)

Parameters

None

Responses

http code	content-type	response
200	application/json; charset=utf-8	JSON data

Example cURL

 curl -X GET -H "Content-Type: application/json" http://localhost:10222/api/v1/status

GET /api/v1/capabilities (gets otelcol-contrib capabilities)

Parameters

None

Responses

http code	content-type	response
200	application/json; charset=utf-8	JSON data

Example cURL

 curl -X GET -H "Content-Type: application/json" http://localhost:10222/api/v1/capabilities

Policies Management

GET /api/v1/policies (gets all existing policies)

Parameters

None

Responses

http code	content-type	response
200	application/json; charset=utf-8	JSON array containing all applied policy names

Example cURL

 curl -X GET -H "Content-Type: application/json" http://localhost:10222/api/v1/policies

POST /api/v1/policies (Creates a new policy)

Parameters

name	type	data type	description
None	required	YAML object	yaml format specified in Policy RFC

Responses

http code	content-type	response
201	application/x-yaml; charset=UTF-8	YAML object
400	application/json; charset=UTF-8	{ "message": "invalid Content-Type. Only 'application/x-yaml' is supported" }
400	application/json; charset=UTF-8	Any policy error
400	application/json; charset=UTF-8	{ "message": "only single policy allowed per request" }
403	application/json; charset=UTF-8	{ "message": "config field is required" }
409	application/json; charset=UTF-8	{ "message": "policy already exists" }

Example cURL

 curl -X POST -H "Content-Type: application/x-yaml" --data @post.yaml http://localhost:10222/api/v1/policies

GET /api/v1/policies/{policy_name} (gets information of a specific policy)

Parameters

name	type	data type	description
policy_name	required	string	The unique policy name

Responses

http code	content-type	response
200	application/x-yaml; charset=UTF-8	YAML object
404	application/json; charset=UTF-8	{ "message": "policy not found" }

Example cURL

 curl -X GET http://localhost:10222/api/v1/policies/my_policy

DELETE /api/v1/policies/{policy_name} (delete a existing policy)

Parameters

name	type	data type	description
policy_name	required	string	The unique policy name

Responses

http code	content-type	response
200	application/json; charset=UTF-8	{ "message": "my_policy was deleted" }
404	application/json; charset=UTF-8	{ "message": "policy not found" }

Example cURL

 curl -X DELETE http://localhost:10222/api/v1/policies/my_policy

Policy RFC (v1)

my_policy:
  #Optional
  #feature_gates:
  #Optional
  set:
    processors.batch.timeout: 2s
  #Required: Same configuration that you would use inside the config file passed to a otel-collector
  config:
    receivers:
      otlp:
        protocols:
          http:
          grpc: 
 
    exporters:
      logging:
        loglevel: debug
      
    service:
      pipelines:
        metrics:
          receivers:
          - otlp
          exporters:
          - logging