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Hi, I am Vladimir Smagin, SysAdmin, DevOps and barely good guy. Telegram Email / GIT / Микроблог / Thingiverse / GPG

Splash: how to change user-agent with Lua in Bash

№ 10157 В разделах: Администрирование Программирование от August 3rd, 2019,

Before start install jq application, required to work with JSON, used to prepare lua script for sending to Splash API.

Create file named splash.lua

function main(splash, args)
  splash:set_user_agent('Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2_1 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5H11 Safari/525.20')
  splash:set_viewport_size(800, 600)
  splash:go('https://www.whatismybrowser.com/')
  splash:wait(0.5)
  return splash:png()
end

Create bash script run.sh

#!/bin/bash

JSON="{\"lua_source\":$(jq -Rs . < script.lua)}"

curl -s -X POST -H "Content-Type: application/json" -d "${JSON}" \
   "http://192.168.1.9:5009/execute" -o out.png

Check result image

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HELM: generate certs for all hosts in ingress.tls

№ 10106 В разделе "Администрирование" от July 1st, 2019,

{{- if .Values.ingress.tls }}
  {{- range .Values.ingress.tls }}
      {{- $secretName := .secretName -}}
      {{- range .hosts }}
---
apiVersion: certmanager.k8s.io/v1alpha1
kind: Certificate
metadata:
  name: {{ $fullName }}
spec:
  acme:
    config:
    - dns01:
        provider: route53
      domains:
      - {{ . }}
  commonName: ""
  dnsNames:
  - {{ . }}
  issuerRef:
    kind: ClusterIssuer
    name: letsencrypt
  secretName: {{ $secretName }}
    {{- end }}
  {{- end }}
{{- end }}

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Autocleaning docker registry

№ 10098 В разделе "Администрирование" от June 25th, 2019,

To remove old images (in my case images can’t be older 14 days) I used https://github.com/andrey-pohilko/registry-cli and included registry tools to collect garbage.

Make sure you run your registry with REGISTRY_STORAGE_DELETE_ENABLED=true

docker run -d -p 127.0.0.1:5000:5000 -e "REGISTRY_STORAGE_DELETE_ENABLED=true" --restart always \
  --name docker-images-registry \
  -v /srv/registry/data:/var/lib/registry \
  -v /srv/registry/users:/auth/htpasswd registry:2

Now you can delete images

docker run --rm --link docker-images-registry anoxis/registry-cli \
  -r http://docker-images-registry:5000 --delete --keep-by-hours 336 \
  --keep-tags-like latest --digest-method=GET

Ok, use garbage collector

docker stop docker-images-registry

docker run --rm -v /srv/registry/data:/var/lib/registry \
  -v /srv/registry/users:/auth/htpasswd registry:2 \
  bin/registry garbage-collect /etc/docker/registry/config.yml

docker start docker-images-registry

Well done! Take a donut from a shelf.

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Kubernetes RabbitMQ operator

№ 9844 В разделах: Администрирование Программирование от March 19th, 2019,

YES! I made it! Written on Golang with operator-sdk.

Today operator working stable, documentation is coming.

Checkout code here https://github.com/tekliner/rabbitmq-operator (mirror)

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Микроблог перейти

# 2019-08-09 09:51:44

Штука, которая в инит контейнере может получить из Vault креды и передать их в контейнер с софтом. Надо будет расковырять ее подробнее на выходных. github.com/cruise-automation/d

# 2019-08-07 20:04:59

Оказывается Canonical начали предлагать Kubernetes ubuntu.com/kubernetes

# 2019-08-06 17:41:08

hetzner-kube поможет быстро задеплоить Kubernetes кластер на облака Hetzner. Балансировать можно или отдельными виртуалками с nginx, или через DNS github.com/xetys/hetzner-kube/


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