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Vadim Ponomarev velp

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I may be slow to respond.
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velp / openstack-commands.md
Last active January 17, 2024 15:16
openstack-commands.md

Check all Floating IP by open TCP ports in Security Groups

openstack floating ip list -f value | while read fip; do echo -e "\e[32m===> Check IP $(echo $fip | awk '{print $2}')\e[0m"; openstack port show $(echo $fip | awk '{print $4}') -c security_group_ids -f json | jq '.security_group_ids[]' -r | while read sg; do openstack security group rule list $sg --ingress --protocol tcp --ethertype IPv4 -c "Port Range" -f value | while read ports; do nc -nzv -w2 $(echo $fip | awk '{print $2}') $(echo $ports | sed 's/:.*//g') ; done; done ; done
@velp
velp / http_debug.md
Created February 11, 2021 15:04
Go HTTP client debug requests/responses

Add logging round tripper:

import (
	"fmt"
	"net/http"
	"net/http/httputil"
)

// This type implements the http.RoundTripper interface.
@velp
velp / log_colorized.md
Last active January 28, 2021 11:43
OpenStack log colorized

It helps to analize OpenStack logs, example Screenshot 2021-01-28 at 14 41 27

Create sed rules file:

cat > /tmp/log_colorized.sed <<EOL
s/(INFO.*)/\x1B[32m\1\x1B[0m/
s/(ERROR.*)/\x1B[31m\1\x1B[0m/
s/(WARNING.*)/\x1B[33m\1\x1B[0m/
s/(CRITICAL.*)/\x1B[31m\1\x1B[0m/
@velp
velp / README.md
Last active November 22, 2020 14:32
Run minikube with cilium CNI for test

System requirements:

  • OS: ubuntu 18.04+
  • CPU: 6+
  • RAM: 10+ Gb

Install minikube + cilium

# Run OS preparation
curl -s https://gist.githubusercontent.com/velp/151636fe01d8b8e3f9c626b30e3c2bc5/raw/prepare_system.sh | bash -s --
@velp
velp / runme_dockerfile.md
Last active April 22, 2020 08:18
How to add Dockerfile and test it locally

Step 1: check/create Dockerfile in root

Your repository should have Dockerfile in the root directory. Specification of Dockerfile you can find here: https://docs.docker.com/engine/reference/builder/

For Node.JS application it can be something like this:

FROM node:12.10.0

# Create directory where we will place the application
WORKDIR /usr/src/app
@velp
velp / golang_snippets.md
Last active April 20, 2020 12:11
Goalng code snippets

YAML parse string/array in one field and parse string/map in one field

import (
    "fmt"
    "strconv"
    "strings"
    "gopkg.in/yaml.v2"
)
@velp
velp / jexia_sdk_consumption_example.md
Last active April 5, 2020 12:35
How to use Jexia SDK for consumption API

Install jexia-sdk

pip install jexia-sdk

Example:

from jexia_sdk.http import HTTPClient

JEXIA_PROJECT_ID = '<PROJECT_HERE>'
@velp
velp / jexia_apphosting_curl.md
Created April 3, 2020 10:33
How to use Jexia application hosting via CURL

How to use Jexia application hosting via CURL

Step 1: set credentials

export JEXIA_EMAIL="<HERE_YOUR_EMAIL>"
export JEXIA_PASSWORD="<HERE_YOUR_PASSWORD>"
export JEXIA_PROJECT="<HERE_YOUR_PROJECT>"

Step 2: get token

@velp
velp / do-dns-update.py
Last active April 3, 2020 13:37
Update A records for domains in DO
import sys
import os
import requests
import json
DO_API = "https://api.digitalocean.com/v2/domains/%s/records"
def get_list_of_records(token, main_domain, sub_domains):
res = requests.get(
@velp
velp / go_remove_docker_image.md
Last active April 3, 2020 13:38
DigitalOcean Golang remove docker image from docker registry

Check the image exists:

docker pull registry.runme.io/runme-50b2af51-f401-43fe-aaec-808868b7e3a0:latest
latest: Pulling from runme-50b2af51-f401-43fe-aaec-808868b7e3a0
092586df9206: Already exists
ef599477fae0: Already exists
4530c6472b5d: Already exists
d34d61487075: Already exists
87fc2710b63f: Already exists