Category Archives: HOWTO’s

Jenkins: running PHPUnit from Codeception by a Pull Request in Github and Allure-reports
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6 June 2019

The task is to create a Jenkins Scripted Pipeline job to run PHPUnit with our PHP-based backend unit-tests. To run PHPUnit Codeception will be used. This Jenkins job must be triggered from a Github repository after creating Pull Request so will use Github Pull-Request Builder plugin here. To view generated reports – Allure Jenkins plugin… Read More »

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AWS: IAM users keys rotation, EC2 IAM Roles and Jenkins
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30 May 2019

Today I checked our IAM-users and “suddenly” recalled that it’s good to update their credentials sometimes: Well, that’s good to do but here is a question: it’s simple enough to set an expire for keys in IAM, but what to do with all scripts which are used in our Jenkins and which are using those… Read More »

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OpenVPN: Let’s Encrypt DNS verification on AWS Route53 and OpenVPN Access Server SSL certificate auto update
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24 May 2019

In addition to the OpenVPN: SSL and hostname configuration post about OpenVPN Access Server, set up and configuration. So, three months passed and it’s time to renew Let’s Encrypt SSL certificate (see. Prometheus: Alertmanager и blackbox-exporter — проверка срока действия SSL и нотификация в Slack, Rus). I could use a well-know for me scheme with… Read More »

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Debian: unattended-upgrades – automatic upgrades installation with email notifications via AWS SES
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23 May 2019

A unattended-upgrades package performs automated upgrades installation on Debian/Ubuntu systems. It’s a Python script (1500 lines) located at /usr/bin/unattended-upgrade (and /usr/bin/unattended-upgrades is a symlink to the /usr/bin/unattended-upgrade). CentsOS/RHEL analog – yum-cron. Install it: [simterm] $ sudo apt -y install unattended-upgrades [/simterm] The main config file is /etc/apt/apt.conf.d/50unattended-upgrades where upgrade types, email settings etc can be… Read More »

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AWS: VPC peering DNS resolution and DNS settings for OpenVPN Access Server
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17 May 2019

We have a VPC with OpenVPN Access Server running. This VPC is connected with other VPCs in our AWS account. The issue is that currently when a user is connected to VPN for the DNS resolution into EC2 instances private IPswe are using dnsmasq service on the VPN-host which has a /etc/dnsmasq.hosts file where are manually… Read More »

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Bitwarden: an organization’s password manager self-hosted version installation on an AWS EC2
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1 May 2019

We consider Bitwarden as a passwords keeper for our project with the main goal to have an ability to have separated access to secrets by user roles and/or ACLs. I.e. Pass or KeePass are good for self-usage by one person but they have no main things – a normal web-interface and role-based access to data.… Read More »

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Linux: GPG-keys, Pass – passwords manager, and passwords import from the KeePass database
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25 April 2019

pass – a password manager for Linux/UNIX. Stores data in tree-based directories/files structure and encrypts files with a GPG-key. In Arch Linux present by default, in Debian can be installed using apt from default repositories: [simterm] $ sudo apt install pass [/simterm] For macOS can be installed with Homebrew: [simterm] $ brew install pass [/simterm]… Read More »

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Golang: pointers – detailed overview
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20 April 2019

What is the pointer? Shortly, the pointer is a variable which stores an address of another variable, where some data is stored. A pointer example Let’s take the simplest example where a pointer is used: package main import “fmt” func main() { a := 1 b := &a fmt.Println(“A: “, a) fmt.Println(“B: “, b) fmt.Println(“B:… Read More »

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