Santatraの6ヶ月インターンシップの最終プレゼンの資料です。

1. Final presentation
ABE Initiative Internship Program
2019 年 9 月～ 2020 年 3 月
さんたとら
２０２０年３月 16 日

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Who am I?
● RANDRIANARIVONY Nirinarisantatra
● Engineer’s degree from ENI Fianarantsoa, MG
● Master’s degree from Kobe Institute of Computing
● JICA program participant since Sept. 2017
● Hobbies: judo, hiking, cooking

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マダガスカルはどこですか。
国
旗

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首都：アンタナナリボ（ Antananarivo ）
Source: https://commons.wikimedia.org/wiki/File:Antananarivo01.jpg, CC BY-SA 3.0

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マダガスカル共和国
●
世界で4番目に広い面積を持つ島
●
面積：日本の約 1.6 倍
●
人口： 2600 万人
●
言語：
– マダガスカル語
– フランス語（共に公用語）
●
宗教：
– キリスト教 41 ％
– 伝統宗教 52 ％
– イスラム教 7 ％

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なぜ日本。
[1] [2] [3]
[4][5
]
Source: Wikipedia

7. IT sector in Madagascar

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Source: https://www.telma.mg/

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Some statistics
Source: Internet World Stats (2018)
https://internetworldstats.com/

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Internship activities

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トピック
Blockchain & others LibreOffice Online[2
]
[1
]

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ブロックチェーン
● Using Open Source solutions
● Objective: Build an application on top of
blockchain

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Blockchain part

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Current status
● Hyperledger Fabric network for iCRAFT
● Hyperledger Explorer
● Chaincode written in TypeScript
● Working API (to be improved)

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What did I learn?
● Blockchain technology
– Security, decentralized trust
– Smart contract or chaincode
● Hyperledger
– Fabric
– Explorer
● Docker

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Database migration
● PostgreSQL Open Source RDBMS
● Objective: Migration of existing applications’
databases (MSSQL and PGSQL) into a unique
PGSQL database

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Database part

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Current status
● Successfully tested
– Database migration scripts
– Connection of existing application
● API available (part of the backend)

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pgAdmin4 interface

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What did I learn?
● PL/PGSQL:
– Write functions/stored procedures
● Python:
– Rewrite an existing PHP script
● MSSQL to PGSQL database migration tools:
– pgloader
– Migrate2Postgres

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LibreOffice Online
● Open Source based collaborative online office
● Objective: Scaling Collabora Online &
Nextcloud using HAProxy, and measuring
performance

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Nextcloud HAProxy
Loadbalancer LibreOffice Online
servers
Cloud hostedInternet

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Overview of the interface

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Current status
● High-available Collabora Online & Nextcloud:
https://lool2019.icraft.jp
● Work with container technologies
1.LibreOffice Online on Kubernetes cluster (Github)
2.Deployment with Rancher (Github)

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Performance testing with JMeter

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What did I learn?
● LibreOffice Online:
– Integration between Nextcloud and Collabora Online
– HAProxy for scaling
● Performance and load testing tools:
– JMeter
– Selenium
● Kubernetes:
– Rancher
– Container Attached Storage (OpenEBS)

29. Meetings and conferences

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Kansai Open Forum
2019 年 11 月 8 日・ 9 日

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Open Source Conference
2020 年 1 月
24 日・ 25 日

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Hyperledger Kansai meetup
2019 年 10 月 9 日 Credits: Satomi Tsujita

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LibreOffice meetup
2019 年 11 月 30 日 Credits: Shinji Enoki

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Nextcloud meetup Kansai
2020 年 02 月 13 日 Credits: Martin Heidegger

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Conclusion
● Rich moment of experience:
– Japanese culture
– Met a lot of people
– New technologies
● Enjoyed my internship at iCRAFT
● Recommended to other program participants

36. Some of my slides are available online on
SlideShare of iCRAFT

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My gratitude to ...
● President Yamamoto
● Enoki Shinji
● Remy Gigaut
● All colleagues at iCRAFT
● JICA

38. ご清聴ありがとうございました。
バオバブの並木道・マダガスカル
Source: Baobab or The Tree of Life, Kuli Kuli & Aduna