Thursday, 31 March 2022

Project Templates

SmartHomeFunctions -  Azure Functions that run a GitHub workflow to publish to Azure


Monday, 14 March 2022

GitHub actions deployed failing Function

I had provisioned an App Service Plan and Linux Consumption Function using terraform.

Then connected Visual Studio to perform CI/CD with Github actions.

However when it completed it deployed a Function App with no functions.

When the timer ran it also said:



I ended up creating a new one from scratch using Visual Studio to see what was going wrong.

The first thing I noticed was that the failing Function App had a "Deployment Credentials" blade whereas the working one didn't.

This made me suspect that the App Service Plan was different.

Indeed, I then compared the working one to the terraform definition that provisioned the broken one.

Immediately it was obvious that there were substantial differences, including:


The App Service Plan must be set to "FunctionApp", not "Linux".

Setting the Function app kind and os_type probably help too.


Summary

So, the old rules apply for building terraform files. Actually build a working resource first using the Wizards and Visual Studio, then create a Terraform file, import the resource, plan it, and compare the differences until there are none. Then you know you have a working Terraform file.

Sunday, 13 March 2022

Useful kuso queries

Get the latest row for each of the Azure Functions

requests 

| summarize arg_max(timestamp, name) by name, success

| project timestamp, name, success


Friday, 4 March 2022

Git shortcuts

Git

Added to C:\Program Files\Git\usr\bin

With the folder added to the path environment variable

ga.bat

@git add %1

gd.bat

@git difftool %1

gs.bat

@git status %1

Set default branch

git config --global init.defaultBranch main

Git - on Linux

alias gs='git status'
alias gd='git difftool'
alias ga='git add'

Terraform

C:\Program Files (x86)\terraform\tf.bat

@terraform %1 %2 %3 %4 %5






Create SSH key in Windows

 To create a SSH key for Windows:

 ssh-keygen -t ed25519 -C "xxx@email.com"

Sunday, 26 December 2021

Writing a Linux UI app - choosing the framework

Gnome and KDE are desktop environments. Ubuntu defaults to Gnome, but you can switch it to KDE.

Gnome was built using GTK. GTK is written in C and had American roots.

KDE was built using Qt, which is written in C++ and had European roots.

GTK & Qt are application frameworks & widget libraries. Both are built on top of Xlib in Linux.

xlib, the X Library, is the lowest-level API of the X Window program. If compared with Windows, Xlib is the same as the Windows APIs (or Windows SDK). It is the programming interface that is closest to X Server. It only provides the most Basic drawing and handling of message events.

When writing apps, you could also use Electron, which is based upon Javascript and NodeJS.