Guru Of Geeks

http://github.com/ViktorUJ/cks

GitHub - agarrharr/awesome-cli-apps: 🖥 📊 🕹 🛠 A curated list of command line apps https://share.google/84umtb3QdZIBiyxOm

https://github.com/zbalkan/rulevis

https://k8s-issues.purutuladhar.com/

https://github.com/iwanhae/kuview

https://onedev.io/

DockSTARTer is to make it quick and easy to get up and running with Docker. DockSTARTer

The Kubernetes Practice Assistant (KPA) is a simple tool designed to help you prepare for Kubernetes certifications and improve your practical skills. Key features: Interactive practice environment for Kubernetes AI-powered assistant to guide your learning Flexible scenarios to test various skill levels Open-ended practice sessions to fit your schedule Whether you're studying for a certification or just want to sharpen your Kubernetes skills, KPA provides a hands-on, adaptable practice experience.   GitHub - robert-cronin/kpa: A simple tool that uses GPT4o mini and a local MiniKube cluster to help users sharpen their Kubernetes skills with mock scenarios and intelligent feedback.

https://github.com/vijay2181/k8s-500-prod-issues/blob/main/README.md

BLAFS is a bloat-aware filesystem for container debloating. The design principles of BLAFS are effective, efficient, and easy to use. It detects the files used by the container, and then debloats the container by removing the unused files. The debloated containers are still functional and can run the same workload as the original containers, but with a much smaller size and faster deployment. https://github.com/negativa-ai/BLAFS?tab=readme-ov-file

While applying recent updates to a server running Rocky Linux 8, an error presented itself. Module yaml error: Unexpected key in data: static_context [line 9 col 3] Module yaml error: Unexpected key in data: static_context [line 9 col 3] The solution turned out to be a simple one. Update the libmodulemd first to correct the problem then perform the dnf updates as usual. dnf update libmodulemd For a detailed explanation as to the cause of this problem.

VMWare Workstation 8, 9, and 10 support booting to a UEFI environment. Create a new virtual machine Open the .VMX file of your virtual machine in Notepad (or similar) and add the following line to it: firmware="efi" Save the .VMX file.         In addition, order to be able to select network boot, it is advisable to add a boot delay to the startup of the virtual machine. This can be done by adding the line "bios.bootdelay = 5000" (time is in milliseconds)

#!/usr/bin/env bash #Install brew and qemu + cloud init metadata dependencies /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh )" brew install qemu brew install cdrtools rm -rf /tmp/ubuntuqemuboot #download Ubuntu 20.04 Cloud Image and resize to 30 Gigs mkdir -p /tmp/ubuntuqemuboot/images cd /tmp/ubuntuqemuboot/images curl https://cloud-images.ubuntu.com/focal/current/focal-server-cloudimg-amd64.img --output focal-server-cloudimg-amd64.img qemu-img resize focal-server-cloudimg-amd64.img 30G #create the cloud-init NoCloud metadata disk file mkdir -p /tmp/ubuntuqemuboot/cloudinitmetadata cd /tmp/ubuntuqemuboot/cloudinitmetadata ssh-keygen -b 2048 -t rsa -f id_rsa_ubuntu2004boot -P "" chmod 0600 /tmp/ubuntuqemuboot/cloudinitmetadata/id_rsa_ubuntu2004boot PUBLIC_KEY=$(cat id_rsa_ubuntu2004boot.pub) cat <<EOF >/tmp/ubuntuqemuboot/cloudinitmetadata/meta-data instance-id: circle-the-wagons-local716 local-hostname: ci...

Open the powershell as administrator certutil -f -user -p PASSWORD -importpfx c:\cert.pfx NoRoot

https://github.com/spegel-org/spegel

Error:  Starting keycloak_postgres_1 ... error ERROR: for keycloak_postgres_1  Cannot start service postgres: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error jailing process inside rootfs: pivot_root .: permission denied: unknown ERROR: for postgres  Cannot start service postgres: failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error jailing process inside rootfs: pivot_root .: permission denied: unknown ERROR: Encountered errors while bringing up the project. Solution # ln -s /etc/apparmor.d/runc /etc/apparmor.d/disable/ # apparmor_parser -R  /etc/apparmor.d/runc Rebooting the instance might also achieve the same.

E0829 10:19:51.734979   13883 memcache.go:265] couldn't get current server API group list: Get "https://x.x.x.x:6443/api? Unable to connect to the server: tls: failed to verify certificate: x509: certificate is valid for 10.43.0.1, 127.0.0.1, 172.31.4.10, ::1, not 13.126.42.175 Solution: edit /etc/systemd/system/k3s.service ExecStart=/usr/local/bin/k3s \    server \       '–advertise-address=106.xx.xx.xx' \       '-tls-san=106.xx.xx.xx' \  ## this is important and kubectl -n kube-system delete secrets/k3s-serving mv /var/lib/rancher/k3s/server/tls/dynamic-cert.json /tmp/dynamic-cert.json systemctl restart k3s

https://github.com/sottlmarek/DevSecOps  

First, we need to drop template1. Templates can't be dropped, so we first modify it so t's an ordinary database: UPDATE pg_database SET datistemplate = FALSE WHERE datname = 'template1'; Now we can drop it: DROP DATABASE template1; Now its time to create database from template0, with a new default encoding: CREATE DATABASE template1 WITH TEMPLATE = template0 ENCODING = 'UNICODE'; Now modify template1 so it's actually a template: UPDATE pg_database SET datistemplate = TRUE WHERE datname = 'template1'; Now switch to template1 and VACUUM FREEZE the template: \c template1 VACUUM FREEZE; Problem should be resolved.

Create a pipeline and execute. trigger: - main pool:   vmImage: ubuntu-latest steps: - task: DownloadSecureFile@1   displayName: 'Download secure file'   inputs:     secureFile: <securefilename> - task: PublishBuildArtifacts@1   displayName: 'Publish Artifact: drop'   inputs:     PathtoPublish: '$(DOWNLOADSECUREFILE.SECUREFILEPATH)'