> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/on-premises/on-premises-no/kom-i-gang/requirements/setup-docker.md).

# Sett opp Docker

Overleaf kjører på Docker. Du må installere:

* Docker Engine (Docker CE)
* Docker Compose **plugin** (`docker compose`, v2)

Disse trinnene er rettet mot en nyere Ubuntu LTS (20.04/22.04/24.04).

{% hint style="warning" %}
Unngå å installere `docker.io` fra Ubuntus standard apt-repositorium.\
Bruk Dockers offisielle repositorium, så får du en nyere Docker-versjon og `docker compose` plugin.
{% endhint %}

Det offisielle dokumentet kommer fra: <https://docs.docker.com/engine/install/ubuntu/>.

{% stepper %}
{% step %}

### 1) Fjern gamle/konfliktende pakker (hvis de finnes)

Hvis Docker tidligere ble installert fra en annen kilde, fjern det først:

{% code overflow="wrap" %}

```bash
 sudo apt remove $(dpkg --get-selections docker.io docker-compose docker-compose-v2 docker-doc podman-docker containerd runc | cut -f1)
```

{% endcode %}

Denne kommandoen er trygg selv om noen pakker ikke er installert.
{% endstep %}

{% step %}

### 2) Legg til Dockers offisielle apt-repositorium

Installer forutsetninger:

```bash
sudo apt update
sudo apt install -y ca-certificates curl
```

Legg til Dockers GPG-nøkkel:

{% code overflow="wrap" %}

```bash
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
sudo chmod a+r /etc/apt/keyrings/docker.asc
```

{% endcode %}

Legg til repositoriet:

{% code overflow="wrap" %}

```bash
# Legg til repositoriet i Apt-kildene:
sudo tee /etc/apt/sources.list.d/docker.sources <<EOF
Types: deb
URIs: https://download.docker.com/linux/ubuntu
Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
Components: stable
Signed-By: /etc/apt/keyrings/docker.asc
EOF

sudo apt update
```

{% endcode %}
{% endstep %}

{% step %}

### 3) Installer Docker Engine + Compose-plugin

Installer Docker og Compose-pluginen:

{% code overflow="wrap" %}

```bash
sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
```

{% endcode %}

Start Docker ved oppstart:

```bash
sudo systemctl enable --now docker
```

{% endstep %}

{% step %}

### 4) Verifiser installasjonen

Disse kommandoene skal kjøres uten feil:

```bash
docker --version
docker compose version
sudo docker run --rm hello-world
docker ps
```

{% endstep %}

{% step %}

### 5) (Valgfritt) Kjør Docker uten sudo

Legg brukeren din til `docker` gruppen:

```bash
sudo usermod -aG docker $USER
```

Deretter **logg ut og inn igjen**, eller kjør:

```bash
newgrp docker
```

Nå skal dette fungere uten `sudo`:

```bash
docker ps
```

{% hint style="danger" %}
Den `docker` gruppen har root-ekvivalent tilgang på vertssystemet.\
Dette er forventet for typiske Overleaf-installasjoner, og spesielt relevant hvis du aktiverer Sandboxed Compiles.
{% endhint %}
{% endstep %}
{% endstepper %}

### Neste trinn

Når Docker fungerer, fortsett med installasjonstrinnene for Toolkit i [Bruke Toolkit](/on-premises/on-premises-no/installasjon/using-the-toolkit.md).


---

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