オープンソースカンファレンス2020 Osakaでの発表資料です。 https://www.ospn.jp/osc2020-osaka/modules/eguide/event.php?eid=41

1. LibreOffice Online と Nextcloud 環境の
構築方法と大規模運用のための実験
ランドリアナリヴ二 二リナリサンタトゥラ
令和２年 01 月 24 日・大阪・日本
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 Unported License

2. 2
ランドリアナリヴ二 二リナリサンタトゥラ
From Madagascar
Work at iCRAFT (intern):
Collabora Online and Nextcloud integration
Permissioned blockchain solution using Hyperledger
Graduated from Kobe Institute of Computing
September 2019
JICA Program participant

3. 3
マダガスカルはどこですか

4. 4
マダガスカル共和国
面積：日本の約 1.6 倍
首都：アンタナナリボ
人口： 2600 万人
公用語：
マダガスカル語
フランス語
宗教：
キリスト教 41 ％
伝統宗教 52 ％
イスラム教 7 ％

5. 5
Architecture diagram
Overall description of the test environment.

6. 6
Test environment
Nextcloud HAProxy
Loadbalancer Collabora Online
servers
Cloud hostedInternet

7. 7
Other considerations
[3] Same version
[2] HTTP traffic
[1] SSL termination
Nextcloud HAProxy
Loadbalancer Collabora Online
servers

8. 8
How it works
Web
browser
Nextcloud
Collabora Online
Collabora Online call
File request
Storage
Transmit to Collabora Online interface
[1] [2]
[3]
[4]
[5]

9. 9
Installation and configuration
Required packages installation and setting.

10. 10
Overview of the configuration
Nextcloud
MySQL
PHP
NGINX
HAProxy
Collabora1
Collabora2 ...
Collaboran
●SSL termination
●Header parsing
●Ports 80 & 443
●HTTPS redirect
●Reverse proxy
●Port 9980
●SSL off
Cluster

11. 11
Nextcloud
For Debian based GNU/Linux distributions:
For Red Hat based GNU/Linux distributions:
$ sudo apt install nginx mysql-server mysql-client
$ sudo yum install nginx mariadb-server mariadb

12. 12
Nextcloud database
Database creation (MySQL/MariaDB):
$ sudo mysql -u root -p
> CREATE DATABASE nextcloud;
> CREATE USER icraft@localhost IDENTIFIED BY 'hyper-secret-pass';
> GRANT ALL PRIVILEGES ON nextcloud.* TO icraft@localhost;
> flush privileges;
> exit

13. 13
Nextcloud installation
Nextcloud installation from source package:
$ cd /var/www/
$ sudo wget
https://download.nextcloud.com/server/releases/latest.tar.bz2
$ sudo tar xvf latest.tar.bz2
$ sudo mkdir -p nextcloud/data/
$ sudo chown -R www-data:www-data nextcloud/

14. 14
NGINX configuration: General section
Filename: /etc/nginx/sites-enabled/nextcloud

15. 15
NGINX configuration: Proxy section
Filename: /etc/nginx/sites-enabled/nextcloud

16. 16
HAProxy
For Debian based GNU/Linux distributions:
For Red Hat based GNU/Linux distributions:
Configuration file check:
$ sudo apt install haproxy
$ sudo yum install haproxy
$ sudo haproxy -c -V -f /etc/haproxy/haproxy.cfg

17. 17
HAProxy configuration
Filename: /etc/haproxy/haproxy.cfg

18. 18
HAProxy balance algorithm
hdr <header_name>
Selects a server based on an HTTP request header. If there
won’t be any value in the header, it will work like the
roundrobin algorithm.
Useful for linking users to servers by browser type, query
address, and so on.
Reference:
https://cbonte.github.io/haproxy-dconv/1.8/configuration.html

19. 19
Collabora Online
Add Collabora repository, then issue:
Binaries installation:
Administrative password setup:
$ sudo apt update
$ sudo apt install loolwsd collabora-online-brand
$ sudo loolconfig set-admin-password

20. 20
Collabora Online configuration
Filename: /etc/loolwsd/loolwsd.xml

21. 21
Nextcloud integration

22. 22
Conclusion
Online based LibreOffice provides many advantages for users
Combined with Nextcloud, it becomes a secure and powerful
collaborative tool
Containers make the deployment of the system much easier
It can be scaled-out using HAProxy

23. 23
Ongoing works
Improve availability:
HAProxy and Nextcloud → SpoF
Storage
Work with containers:
Docker
Kubernetes

24. 24
Thank you
Contact us at:
librepc@icraft.jp
Or visit our websites:
https://librepc.jp
https://icraft.jp