Chef 14 Upgrade: Custom Resource Properties are Silently Coerced to Hash if they are a nil (2 mins read).
Finding out that a nil gets silently coerced to an empty Hash if given to a custom resource's property of type Hash.
by 
Jamie Tanna
.
#blogumentation
#chef-14
#chef-14-upgrade
#chefspec
#test-coverage.
Chef 14: ChefSpec Coverage Reporting Deprecation (1 mins read).
Noting the deprecation of using ChefSpec::Coverage.start! when using Chef 14 and above.
by Jamie Tanna
.
#blogumentation
#chef-14
#chef-14-upgrade
#chefspec
#test-coverage.
Chef 14 Upgrade: Change in ValidationFailed error messages when setting required properties (2 mins read).
The updated error message returned by a Chef ValidationFailed error, when you're specifying which properties are required on a custom resource.
by Jamie Tanna
.
#blogumentation
#chef-14-upgrade
#chef
#chefspec
#chef-14.
Why You Should Be Unit Testing Your Functional Acceptance Tests (7 mins read).
A few reasons explaining why you should be writing unit tests for your functional tests.
by Jamie Tanna
.
#persuasive
#testing
#software-testing
#tdd
#bdd
#cucumber
#software-quality
#quality-engineering
#unit-testing.
Viewing X.509 DER Certificate Details with OpenSSL (2 mins read).
How to convert an X.509 DER file to a human-readable format using openssl commands.
by Jamie Tanna
.
#blogumentation
#certificates
#command-line
#der
#openssl.
Viewing X.509 PEM Certificate Details with OpenSSL (2 mins read).
How to convert an X.509 PEM file to a human-readable format using openssl commands.
by Jamie Tanna
.
#blogumentation
#certificates
#command-line
#pem
#openssl.
Backporting/Replaying Changes Using git cherry-pick (6 mins read).
Using git cherry-pick to make it easier to backport or replay Git commits across different versions of your codebase.
Revert 'Some knowledge-sharing news' (5 mins read).
The unfortunate decision to cancel my Packt training courses.
DevOpsDays London 2018 (51 mins read).
My writeup of my first DevOpsDays conference, and the awesome talks and conversations I was part of.
by Jamie Tanna
.
#devopsdays
#aws
#cloud
#devops
#capital-one
#cloud-custodian
#dashboards
#events
#bash
#monolith
#serverless
#management
#agile
#testing
#microservices.
Showing response headers with curl -i (3 mins read).
Showing just response headers when curling a resource, using curl -i.
by Jamie Tanna
.
#blogumentation
#curl.
Safely Force Pushing with Git using --force-with-lease=ref (6 mins read).
How git push --force-with-lease=ref can save you from overriding others' changes on shared Git branches.
My editorial workflow for blog posts (8 mins read).
Taking you through the journey I go on when writing blog posts, from ideation to publishing the post.
by Jamie Tanna
.
#www.jvt.me
#workflow
#ci
#gitlab
#git
#automation
#command-line
#shell
#gitlab-ci
#review-apps.
Viewing Git history of a file in git log while ignoring file renames (5 mins read).
How to track changes to files in Git without pesky file renames getting in the way, using git log --follow.
Test-Driven Chef Cookbook Development Using ChefSpec (and a sprinkling of InSpec) (38 mins read).
Using the example of deploying and running a Java JAR file as a way to show the lifecycle of a fully test-driven Chef cookbook.
by Jamie Tanna
.
#howto
#blogumentation
#chef
#test-kitchen
#chefspec
#tdd
#testing
#guide.
Pretty Printing JSON Web Tokens (JWTs) on the Command Line using Ruby (3 mins read).
How to easily introspect and pretty print a signed JWT (JWS) or an encrypted JWT (JWE) on the command line using Ruby's standard library, or using the ruby-jwt external library.
by Jamie Tanna
.
#blogumentation
#ruby
#command-line
#jwt
#json
#pretty-print.
Using chef-shell to interactively debug attributes and recipes (5 mins read).
How to use chef-shell to see attribute config and recipes, with and without a Chef Server.
by Jamie Tanna
.
#chef
#chef-shell
#blogumentation
#test-kitchen
#chef-server
#chefdk.
OggCamp 2018 (21 mins read).
A look at my time at OggCamp 2018, the talks I presented and attended.
by Jamie Tanna
.
#events
#oggcamp
#chef
#public-speaking
#openapi
#swagger
#free-software
#open-source
#collaborative-culture.
Context is key: thinking about your audience (5 mins read).
How to have inclusive conversations by providing the right context for those who may not have the same level of understanding.
by Jamie Tanna
.
#thoughts
#communication
#capital-one
#context.
Creating a versionable, self-contained (fat-/uber-) JAR for Cucumber tests (11 mins read).
Why you'd want a fat JAR and how you'd achieve it.
by Jamie Tanna
.
#blogumentation
#java
#cucumber
#testing
#jar
#artifact
#artefact
#maven
#uber-jar.
My Path from School to University to Work (25 mins read).
A look back at my journey up to now, the choices I've made, and what advice I have for others who are embarking on their own journeys into tech.
by Jamie Tanna
.
#musings
#blogumentation
#capital-one
#career
#university
#nottingham
#school
#a-level
#gcse.
Being More Explicit on Content Licensing (3 mins read).
Why I'm re-licensing the code snippets and post content on my site is, and how I'm making it more obvious.
by Jamie Tanna
.
#thoughts
#site
#licensing.
I will be attending Tech Nottingham August 2018: Secure Signups and Visual Testing on
by Jamie Tanna
.
Some exciting job and knowledge-sharing news (4 mins read).
Moving into Quality Engineering, publishing Chef training courses, conference speaking about Chef at OggCamp and the complex mess that is this very static website at DevOpsDays London.
by Jamie Tanna
.
#news
#capital-one
#events
#chef
#testing
#conference
#job
#tdd
#oggcamp
#devopsdays.
I will be attending Tech Nott July 2018: Dungeons, Dragons & Developers and Making The World Better on
by Jamie Tanna
.
Notes from the AWS + Chef Dev Day Roadshow in London (13 mins read).
Notes from the AWS Dev Day Roadshow in London, where we got to play around with Chef, Chef Automate and InSpec using AWS OpsWorks.
by Jamie Tanna
.
#aws
#chef
#events
#chef-server
#opsworks
#cloud-formation
#cloud-custodian
#deployment
#containers
#chef-automate
#inspec.
Pretty Printing JSON on the Command Line with Ruby (1 mins read).
Using Ruby's JSON module to pretty print JSON objects from the command line.
I will be attending Tech Nottingham June 2018: Marketing Technical Products and Async in Javascript on
by Jamie Tanna
.
Merging multiple repositories into a monorepo, while preserving history, using git subtree (3 mins read).
How to merge multiple repositories, with their history, into a single repository, using the git subtree add command.
by Jamie Tanna
.
#blogumentation
#git
#monorepo
#git-subtree
#command-line.
I will be attending May Meetup - The Ultimate DevSecOps and Well what would you do next...? on
by Jamie Tanna
.
Sharing Multiple SSH Sessions over the Same Network Socket (3 mins read).
Reusing network sockets for speed and reduction of authentication handshakes with OpenSSH.
by Jamie Tanna
.
#blogumentation
#ssh
#openssh
#command-line.
Better Git Diff Outputs with Git Submodules (2 mins read).
How to get nicer diffs when working with submodules.
Beware: deleteing a file in Chef doesn't actually delete it (3 mins read).
Why you should explicitly add backup false when deleteing a file through Chef, to avoid leaving potentially sensitive files still on the box.
by Jamie Tanna
.
#blogumentation
#chef.
I will be attending Tech Nottingham May 2018: Quantifying Feelings and Automating Curtains on
by Jamie Tanna
.
Morsels of Goodness: What's Cooking in Chef 14? (5 mins read).
A look at the new features coming in the new Chef 14 release, as well as what to watch out for when upgrading.
by Jamie Tanna
.
#chef-14
#chef
#foodcritic
#cookstyle
#rubocop
#ruby
#test-kitchen.
Finally Returning to Full Time Work After 123 Days (2 mins read).
Receiving the final sign off after four months off for my ruptured appendix.
by Jamie Tanna
.
#thoughts
#appendix
#health.
Serving Branches on a Subdomain using Caddy and GitLab Review Apps (2 mins read).
How to dynamically serve a branch on a subdomain for GitLab Review Apps using Caddy Labels.
by Jamie Tanna
.
#guide
#gitlab
#review-apps
#caddy
#howto
#deploy.
Deploying to Netlify using GitLab CI (3 mins read).
How adding two lines to my .gitlab-ci.yml migrated my existing site from GitLab Pages to Netlify.
by Jamie Tanna
.
#netlify
#gitlab-ci
#automation
#continuous-deployment
#ci
#deploy
#howto.
Executing an Interactive Python Shell (REPL) for a Script (1 mins read).
Using python -i to get an interactive REPL after running a Python source file.
by Jamie Tanna
.
#command-line
#python
#blogumentation
#tools
#howto.