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175 lines
7.5 KiB
175 lines
7.5 KiB
4 years ago
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// Metadata:
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:description: IoT Εισαγωγή στο SwarmLab
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:keywords: iot, swarm
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:data-uri:
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:toc: right
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:toc-title: Πίνακας περιεχομένων
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:toclevels: 4
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:source-highlighter: highlight
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:icons: font
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:sectnums:
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Architecture overview
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= Storage
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== IPFS Cluster image:emblem-web.png[link="https://cluster.ipfs.io/",window="_blank"]
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Automated data availability and redundancy on https://cluster.ipfs.io/[IPFS^].
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IPFS Cluster provides data orchestration across a swarm of IPFS daemons by allocating, replicating and tracking a global pinset distributed among multiple peers.
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It is being used for both tutors and students to publish content on a *decentralized* manner! +
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Information will be *auto-deleted* after approximatelly *24 hours* of not being used. +
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== minio cluster image:emblem-web.png[link="https://min.io/",window="_blank"]
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High Performance, cloud Native Object Storage. +
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https://docs.aws.amazon.com/AmazonS3/latest/API/API_Operations.html[Amazon’s S3 API^] is the defacto standard in the object storage world. +
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MinIO is the defacto standard for S3 compatibility and was one of the first to adopt the API and the first to add support for S3 Select. +
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More than 750 organizations, including Microsoft Azure, use MinIO’s S3 Gateway - more than the rest of the industry combined. +
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It is being used for both tutors and students to save content on a *centralized* manner! +
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Information storage is *permanent*. +
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== MariaDB Galera Cluster image:emblem-web.png[link="https://mariadb.com/kb/en/what-is-mariadb-galera-cluster/",window="_blank"]
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https://mariadb.org/[MariaDB^] Galera Cluster is a virtually synchronous multi-master cluster for MariaDB. +
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Provide *Active-active* multi-master topology. +
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Used for user/admin authorization and authentication.
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== A replica set in MongoDB image:emblem-web.png[link="https://docs.mongodb.com/manual/replication/#replication-in-mongodb",window="_blank"]
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https://www.mongodb.com[MongoDB^] is a document database designed for ease of development and scaling.
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Used for labroom and swarmlab services administration and scheduling. +
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== ShareDB image:emblem-web.png[link="https://github.com/share/sharedb",window="_blank"]
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ShareDB is a realtime database backend based on Operational Transformation (OT) of JSON documents
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= Devel
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== slim image:emblem-web.png[link="http://www.slimframework.com/",window="_blank"]
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Slim is a https://www.php.net/[PHP^] micro framework that helps you quickly write powerful APIs.
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Used for main api of swarmlab.io +
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Slim was used for a fast and powerful router that maps route callbacks to specific HTTP request methods and URIs. +
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== nodejs image:emblem-web.png[link="https://nodejs.org/en/",window="_blank"]
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Nodejs is an asynchronous event-driven JavaScript runtime, Node.js is designed to build scalable network applications.
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Used for event-driven programming and for Sockets and WebSockets.
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== vue.js image:emblem-web.png[link="https://vuejs.org/",window="_blank"]
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Vue is a progressive JavaScript framework for building user interfaces. +
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It is designed from the ground up to be incrementally adoptable, and can easily scale between a library and a framework depending on different use cases. +
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It consists of an approachable core library that focuses on the view layer only, and an ecosystem of supporting libraries that helps you tackle complexity in large Single-Page Applications. +
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Used for the main user interface of swarmlab.io. +
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== python image:emblem-web.png[link="https://www.python.org/",window="_blank"]
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Python is an interpreted, high-level, general-purpose programming language. +
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Python's design philosophy emphasizes code readability with its notable use of significant whitespace. +
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Its language constructs and object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects. +
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Used along with ansible for maintenance and administration of the machines making up the cluster of swarmlab.io. +
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se sinrgasia me tin ansible gia tin diachirissi ton michanon
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== php image:emblem-web.png[link="https://www.php.net",window="_blank"]
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PHP is a popular general-purpose scripting language that is especially suited to web development. +
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Fast, flexible and pragmatic, PHP powers everything from your blog to the most popular websites in the world. +
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Used with slim for creation of the main API.
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== codemirror image:emblem-web.png[link="https://codemirror.net/",window="_blank"]
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CodeMirror is a versatile text editor implemented in JavaScript for the browser. +
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Used for the online editors for interraction with tutors and students. +
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== oauth2 image:emblem-web.png[link="https://oauth.net/2/",window="_blank"]
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OAuth 2.0 is the industry-standard protocol for authorization. +
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OAuth 2.0 focuses on client developer simplicity while providing specific authorization flows for web applications, desktop applications, mobile phones, and living room devices. +
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This specification and its extensions are being developed within the IETF OAuth Working Group. +
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This protocol is being used for the connection of users and services. +
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= System admin and devel
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== docker image:emblem-web.png[link="https://www.docker.com/",window="_blank"]
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Docker provides the ability to package and run an application in a loosely isolated environment called a container. +
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Used for all the services implementations. +
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== docker-compose image:emblem-web.png[link="https://docs.docker.com/compose/",window="_blank"]
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Compose is a tool for defining and running multi-container Docker applications. +
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Used for development, configuration and testing of the services before deployment to the swarm. +
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== Bash image:emblem-web.png[link="https://www.gnu.org/software/bash/",window="_blank"]
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A lot of bash scripting was used (low-level) tasks concerning the Linux operating system.
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== ansible image:emblem-web.png[link="https://www.ansible.com/",window="_blank"]
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Ansible is an open-source software provisioning, configuration management, and application-deployment tool. +
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Used for administration of the machines of the general cluster of swarmlab.io as well as its subclusters. +
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== keycloak image:emblem-web.png[link="https://www.keycloak.org/",window="_blank"]
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Open Source Identity and Access Management +
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Used as backend for authentication to provide secure services in our sso implementation. +
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= Deploy
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== Docker swarm image:emblem-web.png[link="https://docs.docker.com/engine/swarm/",window="_blank"]
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Docker swarm is a container orchestration tool, its allow to manage multiple containers deployed across a cluster. +
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Used for orchestration of swarmlab.io services. +
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= Colaboration
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== gittea image:emblem-web.png[link="https://gitea.com/",window="_blank"]
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A self-hosted Git service used for the git-repo management used by students and tutors. +
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== jitsi image:emblem-web.png[link="https://jitsi.org/",window="_blank"]
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A secure, flexible, and completely free video conferencing. +
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Used for the online virtual meetings attended by students and tutors. +
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= service access
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== noVNC image:emblem-web.png[link="https://novnc.com/info.html",window="_blank"]
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A open source VNC client - it's is both a VNC client JavaScript library as well as an application built on top of that library. +
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noVNC runs in any modern browser including mobile browsers (iOS and Android). +
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Used to access a unix graphic environment for the services provided through a normal browser. +
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== ttyd image:emblem-web.png[link="https://tsl0922.github.io/ttyd/",window="_blank"]
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Terminal over the web. +
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Used to access a unix command line for the services provided through a normal browser. +
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