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Understanding Liveness, Readiness and Startup Probes in Kubernetes

 This is a small article about understanding the liveness, readiness and startup in kubernetes.  There's good explanation in the kubernetes documentation: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ This video also explains well the process: https://www.youtube.com/watch?v=aTlQBofihJQ But I wanted to understand it in a practical way. So I have this demo: https://github.com/DiegoTc/guest-book-js-docker/tree/Running-App-Version-1 It's a simple application running on a kubernetes cluster. https://github.com/DiegoTc/guest-book-js-docker/blob/Running-App-Version-1/argo/deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: chat-ui spec: replicas: 1 revisionHistoryLimit: 3 selector: matchLabels: app: chat-ui template: metadata: labels: app: chat-ui spec: containers: - image: diegotc/guestbook:20230803-064434 imagePullPolicy: Always nam
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Project #1 Ubuntu 2015 Idea!

I'm trying to access my information from my Android on Ubuntu through MTP and I can't. There're several solutions on the forum, but I can't . So I decided to connect ssh to my phone. Problem #1 appears. I forgot the arguments of the nmap tool :(

After searching on the web I find then.

For getting all the ip address of the devices connected to my network

nmap -sP 192.168.0.1/24

For getting the OS and more information

nmap -O 192.168.0.0/24

Cool, but what's Project #1 Ubuntu? Well I just thought it will be cool to have a small gadget for getting this information, instead of using the CLI. So the project will consist on developing a gadget for getting this information. I started with Step #1 Get the idea, Now I will begin working on this idea, and let you know how it goes.
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Understanding Liveness, Readiness and Startup Probes in Kubernetes

 This is a small article about understanding the liveness, readiness and startup in kubernetes.  There's good explanation in the kubernetes documentation: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/ This video also explains well the process: https://www.youtube.com/watch?v=aTlQBofihJQ But I wanted to understand it in a practical way. So I have this demo: https://github.com/DiegoTc/guest-book-js-docker/tree/Running-App-Version-1 It's a simple application running on a kubernetes cluster. https://github.com/DiegoTc/guest-book-js-docker/blob/Running-App-Version-1/argo/deployment.yaml apiVersion: apps/v1 kind: Deployment metadata: name: chat-ui spec: replicas: 1 revisionHistoryLimit: 3 selector: matchLabels: app: chat-ui template: metadata: labels: app: chat-ui spec: containers: - image: diegotc/guestbook:20230803-064434 imagePullPolicy: Always nam
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Getting Docker Syntax In Gedit

I have been working with docker in the last days, and encounter the syntax issue with gedit. Just pure plain text. So make a small search and found an easy way for fixing this. I found Jasper J.F. van den Bosch repository in GitHub and found the solution for this simple problem. We need to download the docker.lang file, available here:  https://github.com/ilogue/docker.lang/blob/master/docker.lang After that, you go to the folder you save the file and do the following command. sudo mv docker.lang /usr/share/gtksourceview-3.0/language-specs/  If this doesn't work you can try the following: sudo mv docker.lang  ~/.local/share/gtksourceview-3.0/language-specs/ And that's all! Screenshot of gedit with no docker lang Screenshot of gedit with docker lang
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Using the calculator in the terminal

Hi to all, this is a small issue I had the last days. Use a calculator in the terminal. I have been working and sometimes need to do an arithmetic operation so I decided to open  calc (Ubuntu Calculator Default). But I was wondering, there has to be a way to use a calculator in the CLI. So after some search in the engine I found this question in Ask Ubuntu and tried several options. I will only write about the  best solution I found for my needs. In the question, you can find several solutions and probably you will find a different solution that will be best for you. CALC (Arbitrary precision calculator) Calc is an arbitrary precision arithmetic system that uses a C-like language. Calc is useful as a calculator, an algorithm prototyper and as a mathematical research tool. More importantly, calc provides one with a machine independent means of computation. Calc comes with a rich set of builtin mathematical and programmatic functions. If you want to install calc you can use th
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