https://www.christian-knedel.de/en/tags/raspberry-pi/ Recent content in raspberry-pi on Christian Knedel Hugo -- gohugo.io en-us Sat, 26 Jun 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/june/20210726-kubernetes-board/ Sat, 26 Jun 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/june/20210726-kubernetes-board/ After creating a Kubernetes - cluster in the Great things with containers: Kubenetes cluster and NFS storage tutorial, I want to install a Kubernetes dashboard. This command contains everything I need for my project: x – + Terminal $ kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.2.0/aio/deploy/recommended.yaml Since the associated service is not accessible from the outside, the “.spec.type” node must still be changed. https://www.christian-knedel.de/en/post/2021/june/20210725-ansible/ Fri, 25 Jun 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/june/20210725-ansible/ After creating a Kubernetes cluster in the Great things with containers: Kubenetes cluster and NFS storage tutorial, I would now like to be able to address these machines via Ansible. A new key is required for this: x – + Terminal $ ssh-keygen -b 4096 The new public key added to the “/home/pi/.ssh/authorized_keys” file of all servers (Server 1, Server 2 and Server 3). https://www.christian-knedel.de/en/post/2021/june/20210620-pi-kubenetes-cloud/ Sun, 20 Jun 2021 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/june/20210620-pi-kubenetes-cloud/ Today I am installing a new Kubenetes cluster and there is a lot to do! I ordered these components for it: 1x WDBU6Y0050BBK WD Elements portable 5TB: https://www.reichelt.de/wd-elements-portable-5tb-wdbu6y0050bbk-p270625.html? 3x fan, dual: https://www.reichelt.de/raspberry-pi-luefter-dual-rpi-fan-dual-p223618.html? 1x Raspberry 4 / 4GB Ram: https://www.reichelt.de/raspberry-pi-4-b-4x-1-5-ghz-4-gb-ram-wlan-bt-rasp-pi-4-b-4gb-p259920.html? 2x Raspberry 4 / 8GB Ram: https://www.reichelt.de/raspberry-pi-4-b-4x-1-5-ghz-8-gb-ram-wlan-bt-rasp-pi-4-b-8gb-p276923.html? 3x Power supplies: https://www.reichelt.de/raspberry-pi-netzteil-5-1-v-3-0-a-usb-type-c-eu-stecker-s-rpi-ps-15w-bk-eu-p260010.html 1x Rackmount: https://amzn.to/3H8vOg7 1x 600 pieces Dupont plug kit: https://amzn.to/3kcfYqQ 1x green LED with series resistor: https://amzn. https://www.christian-knedel.de/en/post/2020/february/20200214-rpi-cpu-temp/ Fri, 14 Feb 2020 00:00:00 +0000 https://www.christian-knedel.de/en/post/2020/february/20200214-rpi-cpu-temp/ If you want to shut down a Raspberry above a certain temperature, then you are in the right place. I have a script that checks the CPU temperature via crontab: #!/bin/sh # This script reads the Broadcom SoC temperature value and shuts down if it # exceeds a particular value. # 80ºC is the maximum allowed for a Raspberry Pi. # Get the reading from the sensor and strip the non-number parts SENSOR="`/opt/vc/bin/vcgencmd measure_temp | cut -d "=" -f2 | cut -d "'" -f1`" # -gt only deals with whole numbers, so round it. https://www.christian-knedel.de/en/post/2019/july/20190717-rpi-pifm/ Wed, 17 Jul 2019 00:00:00 +0000 https://www.christian-knedel.de/en/post/2019/july/20190717-rpi-pifm/ If you are a 104.6 RTL fan and don’t want to spend a day without Berlin’s hit radio, then you are in the right place. You need a single board computer called Raspberry and a cable on GPIO port 4 as an antenna. The following packages are required x – + Terminal $ sudo apt-get update $ sudo apt-get upgrade $ sudo apt-get install sox libsox-fmt-all I create a download folder and download the PIFM script: x – + Terminal $ mkdir /home/pi/installs $ cd /home/pi/installs/ $ wget http://omattos. https://www.christian-knedel.de/en/post/2019/july/20190717-libreelec/ Wed, 17 Jul 2019 00:00:00 +0000 https://www.christian-knedel.de/en/post/2019/july/20190717-libreelec/ SmartTVs can be ticking time bombs. Often, the TV operating systems contain serious gaps or are not kept up to date. A good solution can be a standalone MediaPC operating system. LibreElec runs on the weakest Raspberry and can be controlled with the TV’s remote. LibreElec is more customizable than a SmartTv operating system and offers a variety of apps/modules. All you need is a RaspberryZeroW and a blank SD card. https://www.christian-knedel.de/en/post/2019/july/20190717-synology-gitlab-runner/ Wed, 17 Jul 2019 00:00:00 +0000 https://www.christian-knedel.de/en/post/2019/july/20190717-synology-gitlab-runner/ How do I install a Gitlab runner as a Docker container on my Synology NAS? Step 1: Find Docker image I click on the “Registration” tab in the Synology Docker window and search for Gitlab. I select the Docker image “gitlab/gitlab-runner” and then select the tag “bleeding”. Step 2: Put image/image into operation: Hosts problem My synology-gitlab-insterlation always identifies itself by hostname only. Since I took the original synology-gitlab-package from the package-center, this behavior cannot be changed afterwards. https://www.christian-knedel.de/en/post/2021/april/20210402-bamboo-monitor/ Mon, 01 Jan 0001 00:00:00 +0000 https://www.christian-knedel.de/en/post/2021/april/20210402-bamboo-monitor/ How to create a build monitor for Bamboo, Jenkins or Gitlab? I’ll figure it out by tonight! I have already written a similar Tutorial for Gitlab Issue Boards. The basis for this tutorial is the Raspberry imager and the “Raspberry Pi OS Lite” operating system. After the OS installation, the SD card can be inserted into the Raspberry. In my case this is a Raspberry Pi Zero. Step 1: Install Matchbox/Window Manager To run a Raspberry in kiosk mode, a window manager and a browser are needed.