Getting a --version flag for Cobra CLIs in Go (2 mins read).
How to get Cobra to provide a --version flag.
Performing downtime-inducing AWS RDS changes with no downtime☆ (2 mins read).
How to limit your downtime to seconds, instead of minutes, when performing downtime-inducing changes with AWS RDS.
The Lazy engineer's guide to running your Go web application to AWS Lambda (4 mins read).
How to take a Go web application and move it to AWS Lambda with two lines of code.
Which OS and CPU architecture is this binary compiled for? (4 mins read).
How to use Go to parse an arbitrary executable to work out the Operating System and CPU architecture it's compiled for.
by 
Jamie Tanna
.
#blogumentation
#go.
Creating an HTTP 404 handler for Go net/http servers (2 mins read).
How to add a catch-all 404 handler when writing HTTP servers with Go's net/http server.
by Jamie Tanna
.
#blogumentation
#go.
Serving the current directory over HTTP with Go (1 mins read).
How to use Go's standard library to serve the current directory over HTTP.
by Jamie Tanna
.
#blogumentation
#go.
Getting the commit author details for a GitHub App account (1 mins read).
How to retrieve the git commit author details for a given GitHub App.
Generating Equal methods for Go structs with goderive (3 mins read).
How to use goderive to generate an Equal method between structs, so you don't have to.
by Jamie Tanna
.
#blogumentation
#go.
Checking if files are synced between repos with GitHub Actions (2 mins read).
Creating a GitHub Action workflow to indicate when vendored files are out-of-sync between GitHub repos.
I don't think I want my next promotion (yet) (5 mins read).
Taking a second to pause and think about what Staff Engineer means to me, and why (right now) I may be looking to stay happy at Senior Engineer.
by Jamie Tanna
.
#job
#career
#roodundancies
#deliveroo
#adhd.
Working out which Docker namespaces and images you most depend on (2 mins read).
How to use dependency-management-data to visualise the most popular Docker namespaces and images you depend on.
by Jamie Tanna
.
#blogumentation
#docker
#dependency-management-data.
Querying JSON with SQLite (1 mins read).
How to use json_each and json_extract to query a JSON field in SQLite.
Dynamically retrieving the version of a Node.JS/Typescript dependency, at runtime (1 mins read).
How to retrieve metadata about packages that are depended on at runtime.
Automating boilerplate/scaffolding code with custom code generation in Go, with jen (3 mins read).
How to generate Go code using github.com/dave/jennifer.
by Jamie Tanna
.
#blogumentation
#go.
Debugging HTTP Client requests with Go (2 mins read).
How to add debug logging to http.Client in Go.
by Jamie Tanna
.
#blogumentation
#go.
Who do these Twilio credentials belong to? (2 mins read).
How to work out whether arbitrary Twilio credentials are valid, and if so, what type they are.
Getting a --version flag for Cobra CLIs in Go, built with GoReleaser (2 mins read).
How to get Cobra to provide a --version flag when using GoReleaser.
Cross-compiling a CGO project using Goreleaser (2 mins read).
How to use goreleaser-cross to cross-compile a Go command-line tool.
by Jamie Tanna
.
#blogumentation
#go
#goreleaser
#gitlab-ci.
Introducing dmd, a command-line tool for Dependency Management Data (DMD) (2 mins read).
Introducing a command-line tool for better interacting with databases for managing dependency management data.
by Jamie Tanna
.
#dependency-management-data
#announcement
#go.
Getting a GitHub App installation token on the command-line (2 mins read).
How to get a GitHub App installation token (using Typescript) for a given installation.
Passing a private key as an environment variable (1 mins read).
How to convert a PEM-encoded private key in a form to be stored in an environment variable.
Listing the status of your branch protection in GitHub (1 mins read).
Creating a command-line Go tool to list the branch protection status of your repositories.
Getting comfortable with the lack of privacy with my Week Notes (6 mins read).
Looking back at a few years of writing week notes publicly, and how I approach privacy around what I (want to) write in them.
Determining missing translation keys from gettext .po files (1 mins read).
Creating a Go command to check for missing translation keys across gettext .po files.
by Jamie Tanna
.
#blogumentation
#go.
Setting up default Renovate configuration while allowing overriding of that configuration (2 mins read).
How to run Renovate to provide some defaults for repos that aren't opted-in, as well as allowing repos to opt-in.
Does this Slack Webhook still work? (1 mins read).
How to check if a Slack Webhook is still active.
by Jamie Tanna
.
#blogumentation
#slack.
Who does this NPM token belong to? (2 mins read).
How to work out whether an arbitrary NPM token is valid, and if so, which user account it belongs to.
Performing bulk changes across Git(Hub) Repos with Turbolift and Microplane (4 mins read).
Using Turbolift and Microplane to enact changes across many Git(Hub) repositories.
by Jamie Tanna
.
#blogumentation
#git
#github
#turbolift
#microplane
#automation.
Automagically determining which AWS Lambda runtimes are deprecated or end-of-life (2 mins read).
Introducing a tool that can list AWS Lambda functions and whether their runtimes are approaching or past deprecation/end-of-life dates.
Who do these AWS credentials belong to? (1 mins read).
How to work out whether arbitrary AWS credentials are valid, and if so, what account/role/user they're bound to.
by Jamie Tanna
.
#blogumentation
#aws.
What I learned rebuilding our CI/CD pipelines for Chef Cookbooks (22 mins read).
How a focus on developer experience and user needs helped us rebuild (Capital One's) CI/CD pipelines for Chef cookbooks the right way.
by Jamie Tanna
.
#chef
#capital-one
#jenkins
#job-dsl
#developer-experience.
Listing secrets stored in CircleCI (1 mins read).
How to list all the secrets in your CircleCI organisation.
Enabling/Disabling GitHub Issues via the GitHub API (1 mins read).
How to use the GitHub API to update whether Issues are enabled on a given repo or not.
Using Renovate to manage updates to go install commands (1 mins read).
How to run Renovate to manage dependency version updates for cases where you're go installing them.
Using Renovate to manage updates to golangci-lint versions (1 mins read).
How to run Renovate to manage your golangci-lint dependency versions, using the official installation script.
Performing arbitrary executions with Renovate (2 mins read).
How to run Renovate for one-off package upgrades, rather than using it for longer term maintenance.
by Jamie Tanna
.
#blogumentation
#renovate
#open-source
#security
#typescript.
Getting diagnosed with ADHD (10 mins read).
Looking back at the process to get diagnosed with ADHD.
Prefilling OAuth2 scopes for GitHub Personal Access Tokens (1 mins read).
How to make it easier to set up your OAuth2 scopes on a Personal Access Token with GitHub.
Prefilling OAuth2 scopes for GitLab Personal Access Tokens (1 mins read).
How to make it easier to set up your OAuth2 scopes on a Personal Access Token with GitLab.
Performing AND conditionals in HAProxy (1 mins read).
How to string multiple conditions together in HAProxy to perform an AND.
Creating a JSON Patch endpoint in Go (2 mins read).
How to create a server-side JSON Patch API endpoint in Go.
Extracting the dependency tree from Renovate for given repositories (4 mins read).
Creating a (hacky) solution to retrieve the dependency graph from Renovate for a set of repositories.
by Jamie Tanna
.
#blogumentation
#renovate
#open-source
#security
#typescript
#dependency-management-data.
Listing all GitHub repositories in a GitHub Organisation (3 mins read).
How to use the GraphQL API to list all the repositories that can be found in a given GitHub organisation.
'Should I be able to learn how to be more productive at work?' (3 mins read).
Looking at whether learning how to be more productive, during work hours, is a reasonable thing to do.
by Jamie Tanna
.
#career
#productivity.
Does the tech industry thrive on free work? (6 mins read).
Thinking about how there are subtle expectations to work on your career outside of tech, and how it's not necessarily great.
by Jamie Tanna
.
#career
#job
#adhd
#open-source
#mental-health.
Retrofitting OpenAPI documentation to your Rails codebase (12 mins read).
How to take a Rails codebase and introduce OpenAPI documentation and contract tests, in a test-driven manner.
by Jamie Tanna
.
#blogumentation
#ruby
#rails
#rspec
#openapi
#testing
#contract-testing
#tdd.
Phew, that's a lot of traffic 😅 What happens when a blog post goes viral? (5 mins read).
Looking at some of the things that happen when my posts have gone viral, from how much traffic it brings, to the various sources of traffic.
by Jamie Tanna
.
#blogging
#analytics.
I've got ADHD (4 mins read).
Announcing my recent diagnosis with ADHD Inattentive Type.
Analysing our dependency trees to determine where we should send Open Source contributions for Hacktoberfest (8 mins read).
How we (at Deliveroo) are using GitHub Advanced Security's dependency scanning functionality to determine what our most popular dependencies are, and whether we can find any Open Source contributions for the month of Hacktoberfest.
Lessons learned since posting my salary history publicly (8 mins read).
What I've learned in the year since posting my salary history publicly.
by Jamie Tanna
.
#salary
#job
#capital-one
#cddo
#deliveroo.