samrocketman

Background Information

What is Docker?

Docker provides portable development environments (among many other uses but for Endless Sky this is a key feature). It enables you to bring all of your dependencies to compile endless sky into a docker container so that you do not need them to be installed on your main operating system.

Install Docker Engine for Linux

Follow these instructions https://docs.docker.com/engine/install/

samrocketman

import groovy.json.JsonSlurper 

// criteria
String title_contains = 'DevOps' // required
String salary_currency = 'USD' // or null; example: CAD, CHF, DKK, EUR, GBP, HKD, INR, NZD, PHP, USD
String company_location = 'US' // or null; example: AT, BG, CA, CH, CR, DE, DK, ES, FR, GB, IL, IN, IT, LT, NL, NZ, PH, PT, RO, RU, US
Boolean display_usd = true // false for native currency

List salaries = new JsonSlurper().parse(new File('/home/sam/Downloads/salaries.json'))

samrocketman

Matrix building in scripted pipeline

In my project, Jervis, it supports Matrix building via YAML using Jenkins scripted pipeline. However, it is quite easy to calculate matrix building using the cartesian product on a list of lists containing maps (the matrix axes).

For user pipelines the following script approvals must be allowed:

staticMethod org.codehaus.groovy.runtime.DefaultGroovyMethods combinations java.util.Collection

samrocketman

This guide covers

• Migrating from QGIS 2.x to QGIS 3.x
• Installing QGIS 3.x
• Full changelog for a list of new features since QGIS 2.x.

Migrating from QGIS 2.x to QGIS 3.x

1. Keep a backup copy of your QGIS 2.x projects before you attempt to open them in QGIS 3.x.
2. Review what plugins you rely on. I saw in the documentation that not all plugins have been ported to QGIS 3 so you might not be able to use it if you depend on a specific plugin for your work and it isn't available for QGIS 3.

samrocketman

Prepare Docker environment

git clone https://github.com/gimp-ci/docker-jenkins-gimp
cd docker-jenkins-gimp/
make volumes
make GIMP_BRANCH=b4e5b4ae91dea4e8123e5289c1b4cf66875ff3dc interactive

Download dependencies

samrocketman

start /^\+.* make/
ok /^PASS/
ok /\[OK\]/
ok /make.*Error.*ignored/
ok /Status and Error see/
warning /\.\.\. no/
warning /warning\:/
error /\bError\b/
error /^FAIL/

samrocketman

References:

• https://stackoverflow.com/questions/36173214/how-to-setup-jenkins-with-ha
• https://clusterlabs.org/
• https://github.com/axkibe/lsyncd/
• https://www.surf.nl/binaries/content/assets/surf/en/knowledgebase/2011/drbd-vmigrate-v1.1.pdf

A way I could do live disaster recovery across coastal regions to keep Jenkins highly available. The stack in the diagram is documented at -> https://clusterlabs.org/

samrocketman

version: '2.2'


#define internal docker networks for container connectivity
networks:
  internal:
    driver: bridge
    ipam:
      driver: default
      config:

samrocketman

' Windows product keys are base24 encoded
' source: https://ngb.to/threads/26224-Key-offline-aus-Backup-auslesen
' registry location: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\DigitalProductId
wscript.echo (ConvertToKey (Inputbox("Key-String","Eingabe bitte")))
 
Function ConvertToKey(Key)
    Const KeyOffset = 52
    i = 28
    Chars = "BCDFGHJKMPQRTVWXY2346789"
    Do

samrocketman

reliability testing

I bought 4 SSD drives. I'm going to open 8 terminals (2 for each drive) to infinitely write to the drives over and over again.

2 terminals writing at the same time:

• 1 for writing zeros to the drive
• 1 for writing random 1's and 0's to the drive

I'm going to let the drives write for anywhere from three to five days 24 hours a day. If the drives are bad then they should fail within that window.