Justin Clark u2mejc

Deploying Tags in Dokku

Dokku is an tiny open source PAAS. Pulling and tagging existing images isn't a directly supported feature inside Dokku, so you must use Docker to first pull a tag the image.

Use Docker to login to Docker Hub if the repo isn't public

$ sudo docker -u <dockerhub_username>

Note: -p is only used when passing the password in line

Pull the image from Docker Hub

Issue

When running Kubuntu with Chromium installed via snap, I noticed that text
white spacing was very wide.
This will cause website to render wrong, clipping text off page, moving other DOM objects, and generally being hard to read.

Observations:

Chrominum fonts settings show it's set to "Custom" fonts
TrueType fonts (Times New Roman, etc) appear to be missing

Securely Accessing Private NPM Repos When Building Docker Containers

This topic has been discussed at length before, with different solutions1, but it still seems difficult re-assuring engineers that it's possible and safe to use secret environment variables during docker builds. It seems hotly debated if secrets should ever be in environment variables, with some saying all config goes in env2 and others doing their best to make it hard for people to use environment variables3.

Let's step through an example of how to use Docker secrets to create secure environment variables for npm during a Dockerfile build:

Example Dockerfile

This example copies in a npm package.json and package-lock.json file, for use with npm ci

Note: The backslash in the echo command allows echo to write the envir

	# Add an Environment Property of PAPERTRAIL_HOSTNAME and set the value to nextkillerapp-$HOSTNAME
	container_commands:
	pt_hostname:
	command: "eval export PAPERTRAIL_HOSTNAME=$PAPERTRAIL_HOSTNAME && sed -i \"s/.hostname:./hostname: $PAPERTRAIL_HOSTNAME/\" /etc/log_files.yml"
	test: test -e /etc/log_files.yml
	ignoreErrors: false

	/* Terraform template to reproduce OpsWorks Stack bug

	Reproduce:
	- copy this file to empty dir and cd into dir

	$ terrafrom -version
	Terraform v0.6.14

	$ terrafrom apply

	/* Terraform template to reproduce OpsWorks Stack bug

	Reproduce:
	- copy this file to empty dir and cd into dir

	$ terrafrom -version
	Terraform v0.6.14

	$ terrafrom apply

	OpsWorks stack RGB color value reference, with closest possible english names that I could think of.
	For use in CLI or other non GUI tools like Terraform.

	Cosmic Purple : rgb(135, 61, 98)
	Purple: rgb(111, 86, 163)
	Blue: rgb(45, 114, 184)
	Teal: rgb(38, 146, 168)
	Green: rgb(57, 131, 94)
	Olive Drab: rgb(100, 131, 57)
	Mustard yellow (golden): rgb(184, 133, 46)

	# Check the usually suspects before you resize
	df -h # Show file systems and their current space
	lsblk # show block devices and file systems (do this again after resizing the EBS volume)
	sudo pvscan # show physical drives
	sudo lvscan # show logical volumes

	# Now after you have resized the EBS volumes (you can do this in the console or CLI), the two magic commands:

	sudo pvresize </dev/DEVICE> # Resize physical volume(s)
	sudo lvextend -r -l +100%FREE <LogicalVolume[Path]>

	This is my permanent list of things to carry during complete isolation on
	trails like the Rubicon. Places like Pismo and OHV parks; I usually pack
	lighter since it's easier to get to the road and onto a tow truck, compared to
	when I'm in isolation.

	I've relied on the bare essentials in the past but it's obvious that I need to
	carry more now that I'm driving further off road. So to that extent I'm buying
	more tools so I don't have to keep moving mine back and forth from my garage.

	### Tools for toolbox / bag ###

	#!/usr/bin/env python

	## Decodes NTLM "Authenticate" HTTP-Header blobs.
	## Reads the raw blob from stdin; prints out the contained metadata.
	## Supports (auto-detects) Type 1, Type 2, and Type 3 messages.
	## Based on the excellent protocol description from:
	## <http://davenport.sourceforge.net/ntlm.html>
	## with additional detail subsequently added from the official protocol spec:
	## <http://msdn.microsoft.com/en-us/library/cc236621.aspx>
	##