Andreas Dolp e-cite

Bussysteme

Verbindungstechniken

Um dezentrale Feldgeräte (Sensoren und Aktoren) anzusteuern gibt es verschiedene Verbindungstechniken:

Konventionelle Verdrahtung
- Direkte Verdrahtung von der SPS zu jedem Bauelement im Feld
- Eine Leitung je Feldgerät erfordert einen hohen Ressourcenbedarf
- Unflexibel bei Änderungen
- Herausforderungen bei Analogsignalen (Spannungsabfall proportional zur Leitungslänge)
Dezentrale Peripherie
Serielles Bussystem zwischen Zentraleinheit (SPS) und mehreren Remote-IO-Einheiten

Debian gitlab and gitlab-runner installation tutorial

https://about.gitlab.com/install/?version=ce#debian

Gitlab (Community Edition)

Install dependencies

sudo apt-get install -y curl openssh-server ca-certificates perl
(sudo apt-get install -y postfix)

Add official gitlab repository and install gitlab community edition

Debian Docker installation tutorial

https://docs.docker.com/engine/install/debian/

Remove old docker, update and install requirements

sudo apt-get remove docker docker-engine docker.io containerd runc
sudo apt-get update
sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \

Debian KVM installation tutorial

https://wiki.debian.org/KVM

Update system, install KVM (server without graphical tools) and additional tools

sudo apt-get update && sudo apt-get dist-upgrade
sudo apt-get install --no-install-recommends qemu-system libvirt-clients libvirt-daemon-system
sudo apt-get install qemu-utils dnsmasq-base bridge-utils iptables netcat-openbsd
sudo apt-get install ovmf  # For UEFI-Support in VMs (Aber aufgrund eines Bugs sind mit UEFI-VMs keine Snapshots möglich!)

Authenticate to OpenSSH-Server with either public key or with YubiKey OTP + password

When you have access to your private key file, use it for quick login. When you are on the go, use your Yubikey OTP and your publickey or .

Tutorial: https://developers.yubico.com/yubico-pam/YubiKey_and_SSH_via_PAM.html

Install yubico pam module:
```
sudo apt-get install libpam-yubico
```

	{
	"Name": "VM Operator",
	"IsCustom": true,
	"Description": "Can start, restart and stop (deallocate) virtual machines.",
	"Actions": [
	"Microsoft.Compute/*/read",
	"Microsoft.Compute/virtualMachines/start/action",
	"Microsoft.Compute/virtualMachines/restart/action",
	"Microsoft.Compute/virtualMachines/deallocate/action"
	],