Andrii Soldatenko andriisoldatenko

What are the Kubernetes certifications?

There are four Kubernetes certifications:

Run Astronomer CLI on Windows

Make sure you have Windows 10 and Docker installed

Download latest release of astro-cli using this link
Extract astro_0.8.2_windows_386.zip and move astro.exe somewhere in your %PATH%
Open cmd or PowerShell console and run:

C:\Windows\system32>astro version
Astro CLI Version: 0.8.2
Git Commit: f5cdab8f832da3c6184a7ac167b491e3bac3c022

Interesting twitter accounts to follow about Go programming language

Made with ❤️and golang tools 🛠 by @a_soldatenko

People

Interesting bloggers in twitter

@rob_pike - Rob Pike author of Go programming language.
@francesc - Francesc Campoy is Gopher, Developer Advocate, Good Guy.

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

	from alembic import config
	from alembic import script
	from alembic.runtime import migration
	import sqlalchemy

	import exceptions


	engine = sqlalchemy.create_engine(DATABASE_URL)
	alembic_cfg = config.Config('alembic.ini')

	def fopen(filename, default=sys.stdin):
	"""
	This function helps you do not see errors during upload solutions
	because you forget to switch back to sys.stdin and also you can easily
	debug your code with ipdb or another python debuggers
	"""
	try:
	f = open(filename)
	except FileNotFoundError:
	f = default

	# This will sort go test -v output in ascending order of time to complete the test
	$ go test -v \| sed -n 's#.PASS: \([^ ]\) (\([0-9]*\.[0-9]\{2\}\)s)#\2 \1#p' \| sort -g

	# Add this to e.g. ~/.bashrc, ~/.zshrc, then you can pipe to it: `go test -v \| goslowtests`
	function goslowtests {
	sed -n 's#.PASS: \([^ ]\) (\([0-9]*\.[0-9]\{2\}\)s)#\2 \1#p' \| sort -g
	}

	#!/bin/bash

	set -euo pipefail

	openssl req -new -text -passout pass:abcd -subj /CN=localhost -out server.req -keyout privkey.pem
	openssl rsa -in privkey.pem -passin pass:abcd -out server.key
	openssl req -x509 -in server.req -text -key server.key -out server.crt
	chmod 600 server.key
	test $(uname -s) = Linux && chown 70 server.key
	docker run -d --name postgres -e POSTGRES_HOST_AUTH_METHOD=trust -v "$(pwd)/server.crt:/var/lib/postgresql/server.crt:ro" -v "$(pwd)/server.key:/var/lib/postgresql/server.key:ro" postgres:12-alpine -c ssl=on -c ssl_cert_file=/var/lib/postgresql/server.crt -c ssl_key_file=/var/lib/postgresql/server.key

	FROM golang:1.7

	# Set go bin which doesn't appear to be set already.
	ENV GOBIN /go/bin

	# build directories
	RUN mkdir /app
	RUN mkdir /go/src/app
	ADD . /go/src/app
	WORKDIR /go/src/app


	git log --author="Linus Torvalds" --date=iso \| perl -nalE 'if (/^Date:\s+[\d-]{10}\s(\d{2})/) { say $1+0 }' \| sort \| uniq -c\|perl -MList::Util=max -nalE '$h{$F[1]} = $F[0]; }{ $m = max values %h; foreach (0..23) { $h{$_} = 0 if not exists $h{$_} } foreach (sort {$a <=> $b } keys %h) { say sprintf "%02d - %4d %s", $_, $h{$_}, ""x ($h{$_} / $m 50); }'