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python wrapper for metricsql expr validation.

usage:

1. build shared lib: go build -buildmode=c-shared -o library.so main.go
2. use it

python3 metricsql.py 'not_exist(up)'`
failed to parse expr: not_exist(up), error: unsupported function "not_exist"

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How to use opentelemetry collector with VictoriaMetrics

requirements

• helm
• kubectl
• kubernetes cluster

Installation of VictoriaMetrics

In education purpose, I'll use single node version of VictoriaMetrics.

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Mutli level cluster setup

doc

Lets say we have 2 zones: zone-a and zone-b. Separate cluster must be deploy to the both zones with commands:

helm upgrade -i zone-a vm/victoria-metrics-cluster -f zone.yaml

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Additional user registration

1. Log in into AWS Account, which was subscribed to the Managed solution
2. Open AWS Market Place page with Product and click continue to subscribe:

3) Click at `click here` link and you will be redirected with AWS token to the UI page, where you can register user account:

4) Register account.

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golang web app with opentelemetry metrics

Example of web-go application.

It could push collected metrics by http with opentelemetry insturmentation.

usage:

1. build:

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serviceMonitor:
  enabled: true

alertmanager:
  enabled: true
  persistentVolume:
    enabled: false
  replicas: 1
  resources:
    limits:

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generate self-signed ca with key

openssl req -x509 -sha256 -days 1825 -newkey rsa:2048 -keyout rootCA.key -out rootCA.crt -nodes

• ca.default.svc.cluster.local - ou

generate storage node certificates

YOU HAVE TO USE extfile -> domain.ext

storage 0

ou - mtls-vmstorage-0.mtls-vmstorage.default.svc.cluster.local

openssl req -newkey rsa:2048 -nodes -keyout vmstorage_0.key -out vmstorage_0.csr

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how to generate load on vmagent

requirements

• golang
• python3
• git

starting

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Snippets show example how to use vmbackup as kubernetes sidecar

Build image with cron

# copy or download dockerfile
wget  https://gist.githubusercontent.com/f41gh7/98ad3323cbdd46476595b6a8b753cce9/raw/83df07d56bf36cdba019e6663ee77c1e1649a7a1/cron-vmbackup.Dockerfile

# edit args for your vmbackup config at docker file

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version: '3.5'
services:
  vminsert:
    image: victoriametrics/vminsert:v1.60.0-cluster
    command:
      - '--storageNode=vmstorage-0:8400'
      - '--storageNode=vmstorage-1:8400'
      - '--storageNode=vmstorage-2:8400'
      - '--storageNode=vmstorage-3:8400'
      - '--storageNode=vmstorage-4:8400'