fluxpipe

README

FluxPipe is an experimental stand-alone Flux API for serverless workers and embedded datasources

Flux is a lightweight scripting language for querying databases and working with data. [^1]

Need a practical Flux introduction? Check out the official page or 3 Minutes to Flux

Demo

Try our serverless demo or launch your own instance to instantly fall in love with flux

Instructions

Download a binary release, docker or build from source

📦 Download Binary

curl -fsSL github.com/metrico/fluxpipe/releases/latest/download/fluxpipe-server -O \
&& chmod +x fluxpipe-server

🔌 Start Server w/ Options

./fluxpipe-server -port 8086

Run with -h for a full list of parameters

🐋 Using Docker

docker pull ghcr.io/metrico/fluxpipe:latest
docker run -ti --rm -p 8086:8086 ghcr.io/metrico/fluxpipe:latest

🐛 Usage

💡 Check out the scripts folder for working examples

Playground

Fluxpipe embeds a playground interface to instantly execute queries (borrowed from ClickHouse [^2])

HTTP API

Fluxpipe serves a simple REST API loosely compatible with existing flux integrations and clients

Grafana Flux [^1]

Usage with native Grafana InfluxDB/Flux datasource (url + organization fields are required!)

⭐ ClickHouse SQL

import "contrib/qxip/clickhouse"

clickhouse.query(
  url: "https://play@play.clickhouse.com",
  query: "SELECT database, total_rows FROM tables WHERE total_rows > 0"
)
|> rename(columns: {database: "_value", total_rows: "_data"})
|> keep(columns: ["_value","_data"])

⭐ LogQL

import "contrib/qxip/logql"

option logql.defaultURL = "http://qryn:3100"
logql.query_range(
     query: "rate({job=\"dummy-server\"}[5m])",
     start: v.timeRangeStart, 
     end: v.timeRangeStop
)
|> map(fn: (r) => ({r with _time: time(v: uint(v: r.timestamp_ns)), _value: float(v: r.value) }))
|> drop(columns: ["timestamp_ns", "value"])
|> sort(columns: ["_time"])
|> group(columns: ["labels"])

⭐ CURL POST

Usage with curl

curl -XPOST localhost:8086/api/v2/query -sS \
  -H 'Accept:application/csv' \
  -H 'Content-type:application/vnd.flux' \
  -d 'import g "generate" g.from(start: 2022-04-01T00:00:00Z, stop: 2022-04-01T00:03:00Z, count: 3, fn: (n) => n)'

#datatype,string,long,dateTime:RFC3339,long
#group,false,false,false,false
#default,_result,,,
,result,table,_time,_value
,,0,2022-04-01T00:00:00Z,1
,,0,2022-04-01T00:00:36Z,2
,,0,2022-04-01T00:01:12Z,3

Secrets

Flux builds using EnvironmentSecretService accessing system environment variables from flux scripts.

import "influxdata/influxdb/secrets"
key = secrets.get(key: "ENV_SECRET")

---

STDIN CMD

Fluxpipe can be used as a command-line tool and stdin pipeline processor

Generate CSV

echo 'import g "generate" g.from(start: 2022-04-01T00:00:00Z, stop: 2022-04-01T00:03:00Z, count: 5, fn: (n) => 1)' \
| ./fluxpipe-server -stdin

#datatype,string,long,dateTime:RFC3339,long
#group,false,false,false,false
#default,_result,,,
,result,table,_time,_value
,,0,2022-04-01T00:00:00Z,1
,,0,2022-04-01T00:00:36Z,1
,,0,2022-04-01T00:01:12Z,1
,,0,2022-04-01T00:01:48Z,1
,,0,2022-04-01T00:02:24Z,1

Parse CSV

cat scripts/csv.flux | ./fluxpipe-server -stdin

Query SQL

cat scripts/sql.flux | ./fluxpipe-server -stdin

Public Demo

Grafana Datasource

Configure your Grafana instance with our public demo endpoint (limited resources)

Status

• Fluxlib
  • parser
  • executor
• Contribs
  • contrib/qxip/clickhouse
  • contrib/qxip/logql
  • contrib/qxip/hash
  • ENV secrets
• STDIN pipeline
• HTTP api
  • plaintext
  • json support
  • web playground

[^1]: Project is not affiliated or endorsed by Influxdata or Grafana Labs. All rights belong to their respective owners. [^2]: Used under Apache2 terms. Project is not affiliated or endorsed by ClickHouse Inc. All rights belong to their respective owners.