[Openstack](EN) Build kolla images using source

Update(2020.11.15): Add Victoria version. Rocky version also tested

Update(2020.11.15): Added Ubuntu content and changed to use Python3 and pip3

Update(2019.10.13): Add issue solving parts

Build openstack kolla image by using source


Environment and Prerequisite

  • Linux base system(Done tests on Mac, Ubuntu 18.04.5 LTS and CentOS 7.6)
  • Bash shell(/bin/bash)
  • Docker
  • pip -> From January 1, 2020 Python 2 is no longer supported any more so avoid using Python 2.X.X.
  • pip3
  • Git


Kolla Image?

Kolla Image

  • Kolla’s mission is to provide production-ready containers and deployment tools for operating OpenStack clouds.
  • Kolla Image means containerized images of openstack components
  • Related projects are Openstack Helm and Kolla-ansible
  • Link: https://docs.openstack.org/kolla/latest/


How to build image

Before build!

  • There are two ways to build kolla images. One is from binary and the other is from source. Default value setting is binary.
  • binary build images by using remote binary component file. source build images from source codes.
  • Below scenario introduce build from source and build only nova component.
  • For using source, we need each components source code files.(We will clone it from git repository)
  • Below scenario is tested on both Mac and CentOS-7.6
  • In Ubuntu and CentOS, tested on root user.
  • In MacOS, use sudo command.
  • When developing Kolla it can be useful to build images using files located in a local copy of Kolla. Use the tools/build.py script instead of kolla-build command in all below instructions.
  • From January 1, 2020 Python 2 is no longer supported any more so avoid using Python 2.X.X. You can check it on here


0. Prerequisites

CentOS

sudo yum install epel-release -y
sudo yum install python-devel git python3 python-pip gcc -y

Ubuntu

sudo apt-get install git python3 python3-pip python-pip gcc -y

MacOS

brew install git python3 -y


1. Clone kolla repository

  • Clone kolla repository and switch to stable/victoria branch
  • This post will build stable/victoria version images.
  • Also done test on stable/rocky version.
$ git clone https://github.com/openstack/kolla.git
$ cd kolla/
$ git checkout stable/victoria


2. Install needed packages

  • You can use kolla-build command after installing kolla
# In kolla directory path
$ cd ..
$ pip3 install kolla/

Issue Solving - 1

  • Upgrade pip version if there is error like below in CentOS
  • After not using pip(which used in Python 2), this issue not occurs.
...
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-GB1G0n/GitPython/
...
  • Upgrade pip version
pip install --upgrade pip

Issue Solving - 2

  • Remove yum package if there is error like below in CentOS
  • After not using pip(which used in Python 2), this issue not occurs.
...
ERROR: Cannot uninstall 'requests'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
...
  • Remove yum package
$ rpm -qa | grep requests
$ yum remove python-requests-2.6.0-1.el7_1.noarch -y


3. Generate kolla-build.conf

$ pip3 install tox
$ cd kolla/
$ tox -e genconfig
...
genconfig: commands succeeded
congratulations :)

Issue Solving 1 - Python.h

  • Install packages if there is error like below in CentOS
  • After not using pip(which used in Python 2), this issue not occurs.
...
configure: error: no acceptable C compiler found in $PATH
...
_posixsubprocess.c:16:20: fatal error: Python.h: No such file or directory
...
  • Install python-devel and gcc
$ sudo yum install python-devel gcc -y

Issue Solving 2 - more_itertools

  • Downgrade pip packagee if there is error like below in CentOS
  • After not using pip(which used in Python 2), this issue not occurs.
...
File "/usr/lib/python2.7/site-packages/more_itertools/more.py", line 340
  def _collate(*iterables, key=lambda a: a, reverse=False):
                             ^
SyntaxError: invalid syntax
...
  • Downgrade version of more-itertools
pip install more-itertools==5.0.0


4. Clone nova repository

  • Clone nova repository and switch to stable/victoria branch
  • Remember the path of nova directory
# In kolla directory path
$ cd ..
$ git clone https://github.com/openstack/nova.git
$ cd nova/
$ git checkout stable/victoria
$ pwd
/root/nova


5. Modify kolla-build.conf

  • Modify [nova-base] part’s type and location
  • (Option) Modify tag if you want to change image tag name
  • location value must be your nova directory path on your local computer
  • The location of the generated configuration file is etc/kolla/kolla-build.conf, it can also be copied to /etc/kolla. The default location is one of /etc/kolla/kolla-build.conf or etc/kolla/kolla-build.conf.
# In nova directory path
$ cd ..
$ cd kolla
$ vi etc/kolla/kolla-build.conf # File is in kolla repo path

...
[nova-base]

type = local

# Below value should be your local computer nova directory path
location = /root/nova
...

...
# The Docker tag (string value)
tag = victoria
...
  • Copy modified file etc/kolla/kolla-build.conf to /etc/kolla/kolla-build.conf
$ mkdir -p /etc/kolla/ && cp etc/kolla/kolla-build.conf /etc/kolla/kolla-build.conf


6. Build

  • Build nova from source code in kolla directory
# In kolla directory path
$ python tools/build.py -t source nova

# OR

$ kolla-build -t source nova
  • Build all components using binary
# In kolla directory path
$ python tools/build.py

# OR

$ kolla-build
  • Build specific component
# In kolla directory path
$ python tools/build.py keystone

# OR

$ kolla-build keystone
  • Build using specific os base image
  • Use -b option with ubuntu or centos
# In kolla directory path
$ python tools/build.py -b centos -t source nova

# OR

$ kolla-build -b centos -t source nova


Image build result

$ docker images
REPOSITORY                                TAG                 IMAGE ID            CREATED             SIZE
kolla/centos-source-nova-compute          victoria            5145ea1a6ba7        About an hour ago   2.48GB
kolla/centos-source-nova-novncproxy       victoria            d8338f6be7fa        About an hour ago   1.66GB
kolla/centos-source-nova-ssh              victoria            bbd9d11448b4        About an hour ago   1.61GB
kolla/centos-source-nova-compute-ironic   victoria            18d58cc4b892        About an hour ago   1.61GB
kolla/centos-source-nova-conductor        victoria            395fa15a5da4        2 hours ago         1.58GB
kolla/centos-source-nova-api              victoria            20cc9cbe4234        2 hours ago         1.58GB
kolla/centos-source-nova-scheduler        victoria            b8b967a7dc3d        2 hours ago         1.58GB
kolla/centos-source-nova-mksproxy         victoria            90e969a20b73        2 hours ago         1.58GB
kolla/centos-source-nova-serialproxy      victoria            b8a4f46b847d        2 hours ago         1.58GB
kolla/centos-source-nova-base             victoria            4fdef07ed1c6        2 hours ago         1.58GB
kolla/centos-source-novajoin-server       victoria            9359d838c42b        2 hours ago         956MB
kolla/centos-source-novajoin-notifier     victoria            7704d7b68a0a        2 hours ago         956MB
kolla/centos-source-novajoin-base         victoria            75aca84b6a12        2 hours ago         956MB
kolla/centos-source-openstack-base        victoria            215a22192097        2 hours ago         809MB
kolla/centos-source-nova-libvirt          victoria            1672530e7c27        2 hours ago         1.28GB
kolla/centos-source-base                  victoria            36674f426fd1        2 hours ago         314MB
centos                                    8                   0d120b6ccaa8        3 months ago        215MB

Reference

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