MBCDN

# containerd installieren
sudo apt-get install -y containerd
 
# Standardkonfiguration erzeugen
sudo mkdir -p /etc/containerd
containerd config default | sudo tee /etc/containerd/config.toml >/dev/null
 
# systemd-cgroups aktivieren (wichtig, damit kubelet + containerd zusammenpassen)
sudo sed -i 's/SystemdCgroup = false/SystemdCgroup = true/' /etc/containerd/config.toml
 
# Dienst aktivieren
sudo systemctl enable --now containerd

 
# Image holen
nerdctl pull nginx:alpine

# Container starten (Name, Port, Hintergrund)
nerdctl run -d --name web -p 8080:80 nginx:alpine

# Auflisten
nerdctl ps             # laufende
nerdctl ps -a          # alle

# Logs & Shell
nerdctl logs -f web
nerdctl exec -it web sh

# Stoppen/Starten/Entfernen
nerdctl stop web
nerdctl start web
nerdctl rm web

# Images/Volumes/Netze
nerdctl images
nerdctl volume ls
nerdctl network ls

# nerdctl compose benötigt "nerdctl full" bzw. cni/plugins installiert
nerdctl compose up -d
nerdctl compose down

# Image holen
sudo ctr images pull docker.io/library/nginx:alpine

# Container erstellen + starten
sudo ctr run -d --net-host docker.io/library/nginx:alpine web

# Auflisten
sudo ctr containers ls
sudo ctr tasks ls

# Logs gibt es so nicht direkt -> in den Container oder stdout umleiten
sudo ctr tasks exec --exec-id sh -t web sh

# Stoppen & entfernen
sudo ctr tasks kill -s SIGTERM web
sudo ctr tasks rm web
sudo ctr containers rm web

# Namespace beachten
sudo ctr namespaces ls
sudo ctr --namespace k8s.io containers ls