---
title: CentOS Linux Compose Process
---

# CentOS Linux Compose Process

This document describes the process of how to run a CentOS Linux compose and sync it to stage.

Composes happen on **composer01.rdu2.centos.org** as the **compose** user.
They are created using the [pungi](https://pagure.io/pungi) tool with configurations located in */compose/pungi-centos/*.
They are stored under the */compose/trees/* directory.
Pushing a compose requires syncing it to the staging location */old-compose/staged/<version>/* with a staging script.
Later they are synced from staging to QA.

## Main Distro (GA)

### Compose

```
sudo -u compose pungi-koji \
    --config /compose/pungi-centos/c8.conf \
    --old-composes /compose/trees \
    --target /compose/trees \
    --skip-phase productimg \
    --label RC-1.0
```

### Stage

```
sudo -u compose /compose/centos8-buildsys-tools-private/stage-linux-ga.sh
```

### Treeinfo

As pungi only generates the treeinfo for BaseOS, we need to add the *treeinfo* of AppStream to the BaseOS treeinfo.

```
/compose/centos8-buildsys-tools-private/fix_treeinfos /old-compose/staged/<version>/
```

## Main Distro (Updates)

### Compose

```
sudo -u compose pungi-koji \
    --config /compose/pungi-centos/c8-updates.conf \
    --old-composes /compose/trees \
    --target /compose/trees \
    --skip-phase buildinstall \
    --skip-phase createiso \
    --skip-phase extra_isos \
    --skip-phase productimg \
    --label Update-1.0
```

### Stage

```
sudo -u compose /compose/centos8-buildsys-tools-private/stage-linux-updates.sh
```

## Extras

### Compose

```
sudo -u compose pungi-koji \
    --config /compose/pungi-centos/extras.conf \
    --old-composes /compose/trees \
    --target /compose/trees \
    --skip-phase buildinstall \
    --skip-phase createiso \
    --skip-phase extra_isos \
    --skip-phase productimg \
    --label Update-1.0
```

### Stage

```
sudo -u compose /compose/centos8-buildsys-tools-private/stage-linux-extras.sh
```