Things I Learned Migrating My Personal APIs To Kubernetes (10 mins read).
What I learned while migrating from a number of Java applications on Virtual Private Servers (VPS) to a Kubernetes cluster.
by 
Jamie Tanna
.
#kubernetes
#personal-infrastructure
#sysadmin
#java
#spring-boot.
Updating a Secret in Kubernetes with the Java Client (3 mins read).
How to use the Kubernetes Java SDK to patch a secret through Kubernetes' secrets API.
How to Undo a git push --force (5 mins read).
How to recover from a force push with Git.
by Jamie Tanna
.
#blogumentation
#git.
Debugging Middleman Code With Middleman's Logger (1 mins read).
How to diagnose issues in Middleman, using logging output.
Lightweight and Powerful Dependency Injection for JVM-based Applications with Dagger (7 mins read).
How and why you should be using Dagger for your dependency injection.
Implementing IndieAuth Server Metadata (2 mins read).
Announcing support for OAuth Server Metadata on my IndieAuth Server.
by Jamie Tanna
.
#www.jvt.me
#indieauth.jvt.me
#indieauth
#oauth2
#oidc.
Announcing a Service for Creating an iCalendar feed for event RSVPs: rsvp-calendar.tanna.dev (2 mins read).
Creating a shared service to allow creating iCalendar feeds for tracking what events you're attending.
by Jamie Tanna
.
#calendar
#indieweb
#rsvp-calendar.tanna.dev
#architect-framework.
"I Thought You'd Be Paid More" - What I Learnt From Posting My Salary Publicly (3 mins read).
A writeup of my lightning talk at Tech Nottingham about my salary post.
by Jamie Tanna
.
#salary
#job
#public-speaking
#talk
#tech-nottingham.
Testing Data Serialisation/Deserialization in Java (with Jackson) (4 mins read).
How to validate your JSON types correctly serialise/deserialise.
Setting up fluentd to Parse Nested JSON from Docker (2 mins read).
How to configure fluentd to parse the inner JSON from a log message as JSON, for use with structured logging.
by Jamie Tanna
.
#blogumentation
#fluentd
#logs
#docker
#kubernetes
#logz.io.
Tips for Reducing Dependency Upgrade Toil with Renovate (5 mins read).
Some tips I've picked up while working with Renovate to keep my projects up-to-date.
by Jamie Tanna
.
#blogumentation
#renovate
#open-source
#security.
Packaging Wiremock Extensions into the Standalone Server Runner (2 mins read).
How to use Gradle to package a standalone JAR for Wiremock, including any extensions needed.
Testing Java Callbacks with Mockito (1 mins read).
How to test invoking a real callback in a Java project, as a unit test.
Providing a Public Salary History Page (2 mins read).
Publishing my salary and compensation history for public use.
by Jamie Tanna
.
#salary
#job.
Releasing a Java Library for Gherkin Formatting (4 mins read).
Announcing the release of a Java library that can pretty-format a Gherkin feature file.
Pushing Back to Git In a Jenkins Multibranch Pipeline (1 mins read).
How to push back to a Git repo using a Jenkins multibranch pipeline.
Using Bill of Materials to Simplify Dependency Management (3 mins read).
Producing a Bill of Materials to simplify dependency management for Java projects.
Making Your Gherkin Scenarios Written Using Human-Readable Language (4 mins read).
A lukewarm take about why you should use natural language, so someone not-as-technical can read it and still derive value.
by Jamie Tanna
.
#software-testing
#cucumber
#communication.
I'm Joining the Cabinet Office (5 mins read).
Announcing my move into the Central Digital and Data Office (CDDO) as a Tech Lead.
by Jamie Tanna
.
#personal
#job
#announcement
#capital-one
#cddo.
Using Abstract Test Classes To Reduce Duplication in Java (4 mins read).
How to use Java's abstract classes to reduce duplication of code across unit tests with common functionality.
by Jamie Tanna
.
#java
#junit5
#testing.
Introducing a Microformats API for Books: books-mf2.fly.dev (2 mins read).
Announcing the Microformats translation layer for book data.
by Jamie Tanna
.
#microformats
#micropub
#reading
#books-mf2.
Encoding Strings for Embedding in JSON with Ruby on the Command-Line (1 mins read).
How to easily convert a string to a format that can be used as a value for JSON strings.
Programatically Comparing Versions Using Chef's Versioning Schemes (1 mins read).
How to use Chef's versioning classes to determine whether a version constraint is matched.
by Jamie Tanna
.
#blogumentation
#chef
#ruby.
Parsing Encoded JSON Strings on the Command-Line with Ruby (1 mins read).
How to decode an encoded JSON string.
Testing that your Spring Boot Application Context is Correctly Configured (2 mins read).
How to improve the tests you've got to validate that Spring Boot's context is set up correctly.
by Jamie Tanna
.
#java
#spring-boot
#testing.
Decrypting Encrypted JSON Web Tokens (JWE) with Ruby (1 mins read).
How to use Ruby to decrypt encrypted JSON Web Token objects.
by Jamie Tanna
.
#blogumentation
#ruby
#jwt.
Running Multiple JDK Versions with the Gradle Toolchains Configuration (2 mins read).
How to use the Gradle's toolchain configuration to configure multiple JDKs on your machine.
Testing Data Serialisation/Deserialization using JsonTest with Spring Boot (3 mins read).
How to use the @JsonTest test type in Spring Boot to validate your JSON types correctly serialise/deserialise.
by Jamie Tanna
.
#java
#testing
#spring-boot
#blogumentation.
Default Your Tests to run in Parallel (2 mins read).
Discussing the benefits you can achieve by having parallel-by-default.
by Jamie Tanna
.
#software-quality
#software-testing
#quality-engineering
#testing.
Writing Better Wiremock Stubs (3 mins read).
How to improve the specificity of Wiremock tests to allow for not clobbering other scenarios, and enabling scalable test runs.
by Jamie Tanna
.
#software-quality
#software-testing
#quality-engineering
#testing
#wiremock.
Writing Better Tests (1 mins read).
Announcing a new series of posts about improving the way we write tests.
by Jamie Tanna
.
#software-quality
#software-testing
#quality-engineering
#testing.
Migrating Your Spring Boot Application to use Structured Logging (6 mins read).
How to make your Spring Boot services more supportable by migrating to JSON-emitting structured logging.
by Jamie Tanna
.
#blogumentation
#spring
#spring-boot
#java
#slf4j
#logs.
Avoiding NoClassDefFoundError errors when using slf4j-test with Logback and Maven (2 mins read).
How to exclude Logback from the classpath when testing your logs using slf4j-test and Maven.
Marking up my Curriculum Vitae with Microformats2 (2 mins read).
Creating a public, metadata-rich Curriculum Vitae / Resume for myself at https://hire.jvt.me.
by Jamie Tanna
.
#microformats
#cv
#interviewing
#hire.jvt.me.
Configuring a Jenkins Multibranch Pipeline to Specify the Trust Permissions with Job DSL (1 mins read).
How to specify the trust permissions for a GitHub project on a Jenkins Multibranch pipeline, when using Job DSL.
Features I Want In My Social Reader (6 mins read).
What sort of functionality do I want in my social reader, so I can follow awesome people's thoughts more easily?
How to get a field with Reflection in Java (1 mins read).
How to use Java's Reflection to get access to a private of a class.
by Jamie Tanna
.
#blogumentation
#java.
Server-less Wiremock, or Using Wiremock Without an HTTP Server (3 mins read).
How to match Wiremock's stubs without running an HTTP Server.
Adding API Versioning to your Environment-Agnostic Functional Acceptance Tests (6 mins read).
How to adapt the Proxy pattern to allow for testing against a versioned API.
by Jamie Tanna
.
#java
#testing
#testing
#software-testing
#cucumber
#software-quality
#quality-engineering.
Building a Multibranch Pipeline on a Schedule (2 mins read).
A more convenient solution for setting up periodic rebuilds of certain branches in a Jenkins Multibranch pipelines.
Disabling a Multibranch Pipeline using Job DSL (1 mins read).
How to disable all branches of a MultibranchWorkflowJob with Jenkins Job DSL.
Uploading Community Cookbooks from Supermarket to Chef Server (1 mins read).
How to upload a given community cookbook from Chef Supermarket to Chef Server, using Berkshelf.
Constructing an Ordered Dependency Graph for Chef Cookbooks, using Berkshelf (3 mins read).
How to create a dependency graph for a given cookbook's dependencies to understand the order to install them in.
Using Dynamically Generated Non-AWS Owned SSH Keys with Test Kitchen on EC2 (3 mins read).
How to set up kitchen-ec2 to use an SSH key that isn't available in AWS by amending the user-data of the created EC2 instance.
by Jamie Tanna
.
#blogumentation
#chef
#test-kitchen
#aws
#ssh.
Waiting for SSH service on Test Kitchen with the Docker driver (1 mins read).
How to resolve Waiting for SSH service when running kitchen-docker.
by Jamie Tanna
.
#blogumentation
#chef
#test-kitchen
#docker.
Setting up a Test Environment for Job DSL Projects (6 mins read).
How to tweak your Job DSL configuration to allow working with test environments, to validate jobs configure correctly.
by Jamie Tanna
.
#jenkins
#job-dsl.
Working with a Git remote's default branch, using origin/HEAD (2 mins read).
How to interact with the default branch for a remote repo, as well as update it if needed.
by Jamie Tanna
.
#blogumentation
#git.
Better Chef Reporting for Automated Pipelines (1 mins read).
How to get better machine-parseable reports for your Chef Pipelines.
by Jamie Tanna
.
#blogumentation
#chef
#jenkins
#test-kitchen
#rubocop
#cookstyle
#rspec.
Managing Your Chef Gem Dependencies More Easily in your Gemfile (2 mins read).
How to source your Chef Gem dependencies from your Chef cookbook's metadata.rb instead of duplicating them between files.
by Jamie Tanna
.
#blogumentation
#chef
#ruby.
Programatically Determining the Version of a Chef Cookbook (1 mins read).
How to determine a Chef cookbook's version programatically, using Ruby.
by Jamie Tanna
.
#blogumentation
#chef
#ruby.