Create stuff with AI

Using AI to create bas-relief. Three different AI models were used to create the depth map here. [...]

Fixed a broken switch!

Had a Nintendo switch that stopped showing anything on the screen. It would make a sound when you touched the screen. Took the back off and discovered a ribbon cable was unplugged.

Plugged the cable back in and it worked.
[...]

New SLA Printer

🔥 Received an SLA printer. Just printing random items now. width="400px" height="400px" alt="todo">[...]

Lets make a cup holder

Working on a custom cup holder for the car. Modern cup holders do not hold modern cup sizes for coffee... [...]

Lets make a cup holder

Working on a cup holder for the car. Scanning the cup holders and the cup. I could measure but why when you have a 3d scanner that works?[...]

3d Scanning My Boot

Scanned my boot. Why not? Pretty good results.[...]

New tool: Creality Ferret.

Received an Creality Ferret. Pretty good results.[...]

Prune Docker Images Daily

I am looking at keeping old images cleaned up from a VM that I have access to. I'm looking at keeping storage space minimal is because there is low hard disk space. Let's do this from a daily crontab.

Create a file in /etc/crontab.daily

nano /etc/crontab.daily/docker-prune

In the contents of the file we will insert the following.

#!/bin/bash
podman system prune -af  --filter "until=$((30*24))h"

Allow the file to be executed.

chmod +x /etc/crontab.daily/docker-prune

NOTE: I use Podman instead of Docker but the command above is interchangeable in this instance.[...]

Adding authentication to your Golang microservice!

Adding an authentication middleware to my microservices in Golang using the HTTP Gin framework.

 func authMiddleware() gin.HandlerFunc {
	return func(c *gin.Context) {
		// Define the list of endpoints that require authentication
		securedEndpoints := []string{
			"/users/",
			"/admin",
		}

		// Check if the current request path requires authentication
		for _, path := range securedEndpoints {
			if path == c.Request.URL.Path {
				// Check if the header exists and has the expected value
				headerValue := c.GetHeader("Authorization")
				expectedValue := "your_super_secure_password"

				if headerValue != expectedValue {
					// If the header value doesn't match the expected value,
					// return a 401 Unauthorized response
					c.AbortWithStatusJSON(http.StatusUnauthorized, gin.H{
						"error": "Unauthorized",
					})
					return
				}
				break
			}
		}

		// If the path doesn't require authentication, continue to the next handler
		c.Next()
	}
}

When setting up the router. You can use

r.Use(authMiddleware())

This will run before each method.[...]

Create micro-services in GoLang!

Been writing micro-services in GoLang utilizing the gin HTTP web framework.[...]

Generating QR Code

Looking into generating QR codes and keeping track of the scans. However, I wanted a image in the center. Here is a quick summary of how I accomplished this.

• Download Qrencode
• Ran the following command. qrencode -s 6 -l H --foreground="3599FE" --background="FFFFFF" -o "qr.png" "Your text here"
• Download ImageMagick
• Run the following command to layer another image on top. convert qr.png \( beard.jpg -resize 100x100 \) -gravity center -composite test.jpg

Will generate the below QR Code. [...]

Getting Client Source in a rootless container

I ran into an interesting problem setting up PiHole on Podman. Pihole was not seeing the client IPS. This is due to how rootless containers work. Adding --network slirp4netns:port_handler=slirp4netns forwards the source address. After this, I enabled Pihole listening on all interfaces. I am now able to group devices and have different block lists. Do note that this is slower, don't use the slirp4netns network unless necessary.[...]

Firecracker VM.

Working on an internal cluster that utilizes firecracker for micro vm's. Project is coming along nicely![...]

Podman as a service

I'm testing podman on WSL and wanted to create a podman service. I just created a sh file and runs the following command.

podman system service --timeout 0 unix:///home/michael/podman/site/podman.sock

This creates a sock file that allows Nomads Podman plugin to work. 🔥[...]

Missing Posts

Discovered that there are some posts that are missing from the old site. Working on migrating those now.[...]

Podman is awesome

Been migrating everything to podman. Enjoying every bit of it![...]

It'll be a bad day when you pull an spoofed image.

🔥 Tech Tip: Make it a habit to specify the full URL for your container image. Reduces the chance of pulling an spoofed image.[...]

Is podman the future?

👋 Hey there again friends! Working on switching my docker environments over to podman. Daemonless containers by default? I'm up for that.[...]