INF Developer Guide

1. About the INF project 

This project is a reference implementation of O-Cloud infrastructure which is based on StarlingX and OKD, and it supports multi-OS.

Currently the following OS are supported:
- StarlingX
  - Debian 11 (bullseye)
  - CentOS 7
  - Yocto 2.7 (warrior)
- OKD
  - CentOS Stream CoreOS 4.17

Notes:

Debian based is the recommended platfrom.
The intended audiences of this guide are the developers who want to develop/integrate apps in INF platform, if you just want to install and deploy INF platform, you can ignore this guide and read the INF Installation Guide

Experimental feature: * INF project starts to support ARM64 architecture in this release as experimental feature (POC level), limited features implemented and tested.

It can only be natively built on HPE RL300 Gen11 server (Ampere Altra).

AIO-SX (std kernel) tested on VM and HPE RL300 server.

AIO-DX (std kernel) tested on VM.

1.1 About the Debian based implementaion 

The project provde wrapper scripts to automate all the steps of StarlingX Debian Build Guide to build out the reference platform as an installable ISO image.

1.2 About the CentOS based implementaion 

The project provde wrapper scripts to automate all the steps of StarlingX Build Guide to build out the reference platform as an installable ISO image.

1.3 About the Yocto based implementation 

The project provde wrapper scripts to pull all required Yocto/OE layers to build out the reference platform as an installable ISO image.

To contribute on this project, basic knowledge of Yocto/OpenEmbedded is needed, please refer to the following docs if you want to learn about how to develop with Yocto/OpenEmbedded:

1.4 About the CentOS Stream CoreOS / OKD based implementation 

Deployment automation and documentation for OKD / CentOS Stream CoreOS can be found under the ‘okd’ directory in the pti/rtp repository.

2. How to build the INF project 

2.1 How to build the Debian based image 

2.1.1 Prerequisite for Debian build environment 

NOTE: The build system for Debian requires a Linux system with Docker and python 3.x installed. The the following steps have been tested on CentOS 7 and Ubuntu 20.04.

Refer to Install docker on ubuntu or Install docker on centos to install docker.
Refer to Configure_Debian_build_environment to install prerequisite packges and configure for Debian build environment.

2.1.2 Use wrapper script build_inf_debian.sh to build the Debian based image 

# Get the wrapper script to build the debian image
$ wget -O build_inf_debian.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_debian/build_inf_debian.sh;hb=HEAD'

$ chmod +x build_inf_debian.sh
$ WORKSPACE=/path/to/workspace
$ ./build_inf_debian.sh -w ${WORKSPACE}

If all go well, you will get the ISO image in: ${WORKSPACE}/prj_output/inf-image-debian-all-x86-64.iso

2.2 How to build the CentOS based image 

NOTE: This only supports build on CentOS 7 which will be EOL 30 Jun 2024.

2.2.1 Prerequisite for CentOS build environment 

NOTE: This step needs the user has sudo permission.

# Get the wrapper script for preparing the build environment
$ wget -O build_inf_prepare.sh https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_centos/build_inf_prepare_jenkins.sh;hb=HEAD

$ chmod +x build_inf_prepare.sh
$ WORKSPACE=/path/to/workspace
$ ./build_inf_prepare.sh -w ${WORKSPACE}

2.2.2 Use wrapper script build_inf_centos.sh to build the CentOS based image 

# Get the wrapper script to build the centos image
$ wget -O build_inf_centos.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_centos/build_inf_centos.sh;hb=HEAD'

$ chmod +x build_inf_centos.sh
$ WORKSPACE=/path/to/workspace
$ ./build_inf_centos.sh -w ${WORKSPACE}

If all go well, you will get the ISO image in: ${WORKSPACE}/prj_output/inf-image-centos-all-x86-64.iso

2.3 How to build the Yocto based image 

2.3.1 Prerequisite for Yocto build environment 

Your host need to meet the requirements for Yocto, please refer to:

The recommended and tested host is Ubuntu 16.04/18.04 and CentOS 7.

To install the required packages for Ubuntu 16.04/18.04:

$ sudo apt-get install gawk wget git-core diffstat unzip texinfo gcc-multilib \
  build-essential chrpath socat cpio python python3 python3-pip python3-pexpect \
  xz-utils debianutils iputils-ping make xsltproc docbook-utils fop dblatex xmlto \
  python-git

To install the required packages for CentOS 7:

$ sudo yum install -y epel-release
$ sudo yum makecache
$ sudo yum install gawk make wget tar bzip2 gzip python unzip perl patch \
  diffutils diffstat git cpp gcc gcc-c++ glibc-devel texinfo chrpath socat \
  perl-Data-Dumper perl-Text-ParseWords perl-Thread-Queue perl-Digest-SHA \
  python34-pip xz which SDL-devel xterm

2.3.2 Use wrapper script build_inf_yocto.sh to setup build the Yocto based image 

# Get the wrapper script with either curl or wget
$ curl -o build_inf_yocto.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_yocto/build_inf_yocto.sh;hb=HEAD'
$ wget -O build_inf_yocto.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_yocto/build_inf_yocto.sh;hb=HEAD'

$ chmod +x build_inf_yocto.sh
$ WORKSPACE=/path/to/workspace
$ ./build_inf_yocto.sh -w ${WORKSPACE}

If all go well, you will get the ISO image in: ${WORKSPACE}/prj_output/inf-image-yocto-aio-x86-64.iso

2.4 How to build the Debian based image for ARM64 arch 

2.4.1 Prerequisite for Debian build environment 

NOTE:

The build env only tested on HPE RL300 server (Ampere Altra).
The build system for Debian requires a Linux system with Docker and python 3.x installed. The the following steps have been tested on Debian 11.

Refer to Install docker on ubuntu or Install docker on centos to install docker.
Refer to Configure_Debian_build_environment to install prerequisite packges and configure for Debian build environment.

2.4.2 Use wrapper script build_stx_debian.sh to build the Debian based image 

# Get the wrapper script to build the debian image
$ wget -O build_stx_debian.sh 'https://gerrit.o-ran-sc.org/r/gitweb?p=pti/rtp.git;a=blob_plain;f=scripts/build_inf_debian/build_stx_debian.sh;hb=HEAD'

$ chmod +x build_stx_debian.sh
$ WORKSPACE=/path/to/workspace
$ ./build_stx_debian.sh -w ${WORKSPACE} -a arm64

The build-image will always fail for now, do the following workaround after build-image fails:

cd ${WORKSPACE}
source env.prj-stx-deb
cd src/stx-tools
source import-stx

stx shell --container lat

# inside the LAT pod
cd /localdisk
. /opt/LAT/SDK/environment-setup-cortexa57-wrs-linux
appsdk --log-dir log genimage lat.yaml

If all go well, you will get the ISO image in: ${WORKSPACE}/localdisk/deploy/starlingx-qemuarm64-cd.iso