mikejoh

Monitor Calico Felix using Prometheus Operator

Make sure you have these settings enabled in felix, in this case using enviornment variables:

FELIX_PROMETHEUSMETRICSENABLED = True
FELIX_PROMETHEUSMETRICSPORT = "9091"
FELIX_PROMETHEUSGOMETRICSENABLED = True
FELIX_PROMETHEUSPROCESSMETRICSENABLED = True

f41gh7

apiVersion: operator.victoriametrics.com/v1beta1
kind: VMServiceScrape
metadata:
  name: apiserver
  namespace: monitoring-system
spec:
  endpoints:
  - bearerTokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token
    bearerTokenSecret:
      key: ""

avshabanov

Postgres - Simple Master-Slave Replication

This is insecure, fast-to-setup setup of simple master-slave replication with dockerized PostgreSQL installation. Note, that below works with version postgres version 12.2: postgres (PostgreSQL) 12.2 (Debian 12.2-1.pgdg100+1).

Preparation:

# This is where your primary database files will be stored

fomvasss

Шпаргалка по Markdown

(https://github.com/sandino/Markdown-Cheatsheet) (перевод, оригинал)

Поиграть с разметкой Markdown можно на демо-странице.

Содержание

Заголовки
Выделение

sethryder

   modules:
      https_2xx:
        prober: http
        timeout: 5s
        http:
          method: GET
          no_follow_redirects: false
          fail_if_ssl: false
          fail_if_not_ssl: true
          preferred_ip_protocol: "ipv4"

pedroxs

# recursive search for keys containing "string" stripping empty results
jq '.. | objects | with_entries(select(.key | contains("ftp"))) | select(. != {})'

# same, but output propper array
jq '[ .. | objects | with_entries(select(.key | contains("ftp"))) | select(. != {}) ]'
# or
jq 'map( .. | objects | with_entries(select(.key | contains("ftp"))) | select(. != {}) )'

# transform input from {type: a, amount: 1} to {a: 1} and sum all values by type
jq '[ .[] | {(.type): .amount} ] | map(to_entries) | add | group_by(.key) | map({key: .[0].key, value: map(.value) | add}) | from_entries'

narthur

a="address1@gmail.com, address2@gmail.com"
mutt -s "subject" -a file.pdf -- $a

crisidev

KEY=XXXXXXXXXXXX
HOST="https://metrics.crisidev.org"

mkdir -p dashboards && for dash in $(curl -k -H "Authorization: Bearer $KEY" $HOST/api/search\?query\=\& |tr ']' '\n' |cut -d "," -f 5 |grep slug |cut -d\" -f 4); do 
  curl -k -H "Authorization: Bearer $KEY" $HOST/api/dashboards/db/$dash > dashboards/$dash.json 
done

labrown

---
###
# Elasticsearch Rolling restart using Ansible
###

##
## Why is this needed?
##
#
# Even if you use a serial setting to limit the number of nodes processed at one