# Ubuntu 24.04 mit Docker installieren

[![image.png](https://bookstack.borgal.de/uploads/images/gallery/2024-01/scaled-1680-/sAyimage.png)](https://bookstack.borgal.de/uploads/images/gallery/2024-01/sAyimage.png)

##### Root aktivieren + SSH

```
sudo nano /etc/ssh/sshd_config
```

```
FROM:
#PermitRootLogin prohibit-password
TO:
PermitRootLogin yes
```

```
sudo systemctl restart ssh
```

```
sudo passwd
```


##### Docker installieren

```
apt update
```

```
apt install ca-certificates curl gnupg lsb-release
```

```
mkdir -p /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg
chmod a+r /etc/apt/keyrings/docker.gpg
```

```
echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

```

```
apt update
```

```
apt install docker-ce docker-ce-cli containerd.io
```

```
reboot
```

##### IPv6 deaktivieren

```
nano /etc/sysctl.conf
```

<p class="callout info">An das Ende folgende Zeilen hinzufügen</p>

```
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
```

<p class="callout info">Änderung übernehmen</p>

```
sysctl -p
```

##### IP Bereich für Docker Container anpassen

```
nano /etc/docker/daemon.json
```

```
{
  "default-address-pools":
  [
    {"base":"10.1.0.0/16","size":24}
  ]
}
```

```
service docker restart
```

##### Docker testen

```
docker run hello-world
```

<p class="callout success">Docker Compose V2 ist schon inkludiert.</p>

##### LVM Volumen auf kompletten Speicherplatz erweitern

aktuelle Größe anzeigen lassen

```
df -hT /dev/mapper/ubuntu--vg-ubuntu--lv
```

Vergrößerung vorher testen

```
lvresize -tvl +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
```

Vergrößerung durchführen

```
lvresize -vl +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
```

Filesystem vergrößerung

```
resize2fs -p /dev/mapper/ubuntu--vg-ubuntu--lv
```

Erfolg testen

```
df -hT /dev/mapper/ubuntu--vg-ubuntu--lv
```