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Andrey Chernykh a-chernykh

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@a-chernykh
a-chernykh / helm.sh
Created June 20, 2019 14:55
Poor man's helm
cat config/deploy/k8s/*.yml | envsubst | kubectl apply -f -
cat config/deploy/k8s/*.yml | envsubst | kubectl wait --for condition=available -f - --timeout 120s
@a-chernykh
a-chernykh / self-signed-certificate-with-custom-ca.md
Created April 1, 2019 19:42 — forked from fntlnz/self-signed-certificate-with-custom-ca.md
Self Signed Certificate with Custom Root CA

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096
@a-chernykh
a-chernykh / search.feature
Created September 8, 2016 03:58
How to test a website blog post
Feature: Search
Scenario: Search for "apple"
Given I am on the front page
When I search for "apple"
Then I should see "apple.com"
@a-chernykh
a-chernykh / Dockerfile
Created August 29, 2016 02:15
docker osxfs slowness workaround
ENV APP_USER app
ENV BUNDLE_APP_CONFIG /usr/local/bundle
ADD Gemfile $DIR
ADD Gemfile.lock $DIR
# Force bundler to install all gems to system location (/usr/local/bundle) so that when you run `rake` command
# all files are loaded from docker image instead of mounted volume
RUN bundle install --deployment --path $BUNDLE_APP_CONFIG
RUN chown -R $APP_USER $BUNDLE_APP_CONFIG
@a-chernykh
a-chernykh / tester.rb
Created October 16, 2015 21:20
variable in ruby shadows method with the same name
class Tester
def test
if false
# variable 'var' is now in scope because it's defined syntactically (at parse time)
var = 'bar'
end
# variable 'var' shadows method with the same name. variable 'var' was defined, but never assigned which means it equals nil
puts var.inspect # => nil
end
@a-chernykh
a-chernykh / child.rb
Created October 9, 2015 18:46
Why rails can't infer foreign key name automatically?
class Child < ActiveRecord::Base
belongs_to :parent # Child has parent_guid field
# ActiveModel::MissingAttributeError:
# can't write unknown attribute `parent_id`
end
@a-chernykh
a-chernykh / base.rb
Last active September 8, 2015 22:04
Interview test task
class Base
def initialize(attrs={})
# implement this
end
def self.find(id)
# implements this
end
def self.db
@a-chernykh
a-chernykh / spec_helper.rb
Created May 7, 2015 23:25
TeamCity hack for running specs with spork started from another process (i.e. from terminal)
# Teamcity hack
$LOAD_PATH.push '/Applications/RubyMine.app/Contents/rb/testing/patch/bdd'
$LOAD_PATH.push '/Applications/RubyMine.app/Contents/rb/testing/patch/common'
require 'teamcity/spec/runner/formatter/teamcity/formatter'
@a-chernykh
a-chernykh / Vagrantfile
Created January 8, 2015 22:54
Package plugins with vagrant
needs_restart = false
plugins = {
'vagrant-aws' => '0.5.0',
'vagrant-s3auth' => '0.1.0',
'vagrant-bindfs' => '0.3.2',
}
plugins.each do |plugin, version|
unless Vagrant.has_plugin?(plugin)
system("vagrant plugin install #{plugin} --plugin-version #{version}") || exit!
needs_restart = true
@a-chernykh
a-chernykh / script.js
Created November 20, 2014 23:23
Delete all Jenkins jobs produced by "Build Per Branch"
for(job in jenkins.model.Jenkins.theInstance.getProjects()) {
if (job.name != 'project-test-master' && job.name.indexOf('project-test') > -1) {
job.delete();
}
}