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https://github.com/mateimicu/semantic-faas
Ontology and tooling for modeling Function as a Service Providers & Function's
https://github.com/mateimicu/semantic-faas
faas faas-platform ontology owl python rdf semantic-web
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Ontology and tooling for modeling Function as a Service Providers & Function's
- Host: GitHub
- URL: https://github.com/mateimicu/semantic-faas
- Owner: mateimicu
- License: mit
- Created: 2021-04-11T17:10:42.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2024-04-25T06:05:23.000Z (8 months ago)
- Last Synced: 2024-10-31T21:03:38.218Z (about 2 months ago)
- Topics: faas, faas-platform, ontology, owl, python, rdf, semantic-web
- Language: Python
- Homepage:
- Size: 7.56 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 5
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Function as a service Ontology
Ontology to describing Function as a Service providers and application requirements.
- [Function as a service Ontology](#function-as-a-service-ontology)
* [Roadmap](./ROADMAP.md)
* [Examples](#examples)
+ [Model AWS Lambda](#model-aws-lambda)
+ [Model an OpenFaaS environment](#model-an-openfaas-environment)
+ [CovidTracker Application](#covidtracker-application)
+ [EchoServer](#echoserver)
* [SPARQL Examples](#sparql-examples)
+ [Get all execution environments](#get-all-execution-environments)
+ [Full list of SPARQL examples](./sparql)
Here is the [Roadmap](./ROADMAP.md) for the development
Resources we leveraged in our ontology:
* [time][time] is used to model execution times and other temporal attributes
* [locn][locn] is used to model location attributes (for example data center location or geographical restrictions)
* [dave][dave] is used to model relationships between metrics (the ones required by the application or provided by the Execution Environment)
* [wd][wd] used to fetch existing concepts (locations, programming languages, cpu architecture)
* [wdt][wdt] used to integrate with existing properties (`part of` for example)
* [DCMI Metadata Terms][terms], [FOAF][foaf], [DCMI Metadata elements][dc], [OWL][owl], [RDF][rdf], [RDFS][rdfs], [XSD][xsd] as the base for most relationships/meta-data and restrictions
## Examples
### Model AWS Lambda
For the full ontology see [this](./faas.owl).
For now the Tbox and Abox are mixed in one file, we need to split them up for clarity.
```rdf
### http://www.semantic-faas.com/ontology#AWSLambda
:AWSLambda rdf:type owl:NamedIndividual ,
:ServerlessExecutionEnvironment ;
:cpuArch wd:Q272629 ;
:datacenter :af-south-1a ,
:af-south-1b ,
:af-south-1c ,
:ap-east-1a ,
:ap-east-1b ,
:ap-east-1c ,
:ap-northeast-1a ,
:ap-northeast-1b ,
:ap-northeast-1c ,
:ap-northeast-1d ,
:ap-northeast-2a ,
:ap-northeast-2b ,
:ap-northeast-2c ,
:ap-northeast-3a ,
:ap-south-1a ,
:ap-south-1b ,
:ap-south-1c ,
:ap-southeast-1a ,
:ap-southeast-1b ,
:ap-southeast-1c ,
:ap-southeast-2a ,
:ap-southeast-2b ,
:ap-southeast-2c ,
:ca-central-1a ,
:ca-central-1b ,
:ca-central-1c ,
:cn-north-1a ,
:cn-north-1b ,
:cn-northwest-1a ,
:cn-northwest-1b ,
:eu-central-1a ,
:eu-central-1b ,
:eu-central-1c ,
:eu-north-1a ,
:eu-north-1b ,
:eu-north-1c ,
:eu-south-1a ,
:eu-south-1b ,
:eu-south-1c ,
:eu-west-1a ,
:eu-west-1b ,
:eu-west-1c ,
:eu-west-2a ,
:eu-west-2b ,
:eu-west-2c ,
:eu-west-3a ,
:eu-west-3b ,
:eu-west-3c ,
:me-south-1a ,
:me-south-1b ,
:me-south-1c ,
:sa-east-1a ,
:sa-east-1b ,
:sa-east-1c ,
:us-east-1a ,
:us-east-1b ,
:us-east-1c ,
:us-east-1d ,
:us-east-1e ,
:us-east-1f ,
:us-east-2a ,
:us-east-2b ,
:us-east-2c ,
:us-gov-east-1a ,
:us-gov-east-1b ,
:us-gov-east-1c ,
:us-gov-west-1a ,
:us-gov-west-1b ,
:us-gov-west-1c ,
:us-west-1a ,
:us-west-1b ,
:us-west-1c ,
:us-west-2a ,
:us-west-2b ,
:us-west-2c ,
:us-west-2d ;
:pricingModel :AWSLambdaPricing ;
:supportedPackages wd:Q15206305 ,
wd:Q161053 ,
wd:Q21622213 ,
wd:Q251 ,
wd:Q28865 ,
wd:Q37227 ,
wd:Q756100 ;
:maxAllowedRAM "10240"^^xsd:positiveInteger ;
:maxAllowedStorage "75"^^xsd:positiveInteger ;
:maxConccurency "1000"^^xsd:positiveInteger ;
:maxTimeAllowed "900"^^xsd:positiveInteger ;
:minRequiredRAM "128"^^xsd:positiveInteger ;
rdfs:comment "https://aws.amazon.com/lambda/"^^xsd:anyURI ;
rdfs:label "AWS Lambda"^^xsd:string .
```
### Model an OpenFaaS environment
```ttl
### http://www.semantic-faas.com/ontology#OpenFaaS
:OpenFaaS rdf:type owl:NamedIndividual ,
:ServerlessExecutionEnvironment ;
:cpuArch wd:Q272629 ;
:datacenter :FIIDatacenter ;
:supportedPackages wd:Q15206305 ,
wd:Q28865 ;
:maxAllowedRAM "2048"^^xsd:positiveInteger ;
:maxAllowedStorage "10"^^xsd:positiveInteger ;
:maxConccurency "5"^^xsd:positiveInteger ;
:maxTimeAllowed "360"^^xsd:positiveInteger ;
:minRequiredRAM "128"^^xsd:positiveInteger ;
rdfs:comment "A custom instalation of OpenFaas datacenter on commodity hardware."^^xsd:string ,
"https://www.openfaas.com/"^^xsd:anyURI ;
rdfs:label "OpenFaaS"^^xsd:string .
```
### CovidTracker Application
This application has geographical requirements but because of it's sensitivity we don't care about the cost.
We only impose a timeout per request of 30s as a best practice (also this is an app produced by Romania Gourmand, we don't expect it to be efficient)
```rdf
:CovidTracker rdf:type owl:NamedIndividual ,
:Application ;
:code :CovidTrackerCode ;
:requirements :Max30sRuntime ,
:OnlyRomaniaGeoRestriction ;
:maxPricePerMillionExecution "0.0"^^xsd:double .
### http://www.semantic-faas.com/ontology#CovidTrackerCode
:CovidTrackerCode rdf:type owl:NamedIndividual ,
:Code ;
:programmingLanguage wd:Q28865 ;
:sourceCode "cHJpbnQoJ0NvdmlkIFRyYWNrZXInKQo="^^xsd:base64Binary .
:OnlyRomaniaGeoRestriction rdf:type owl:NamedIndividual ,
:GeographicalRequirement ;
wdt:P361 wd:Q218 .
:Max30sRuntime rdf:type owl:NamedIndividual ,
:ExecutionTimeRequirement ;
:maxTimeAllowed "360"^^xsd:positiveInteger .
```
### EchoServer
This application has more complex requirements:
* max 10s of execution time
* Only x86 architecture
* Max 512MB ram
* Also a cost requirement
```rdf
:EchoServer rdf:type owl:NamedIndividual ,
:Application ;
:code :EchoServerCode ;
:requirements :AtLeast100Replicas ,
:Cpu_x86 ,
:Max10seconds ,
:Max512MB ;
:maxPricePerMillionExecution "75.0"^^xsd:double .
### http://www.semantic-faas.com/ontology#EchoServerCode
:EchoServerCode rdf:type owl:NamedIndividual ,
:Code ;
:programmingLanguage wdt:Q15206305 ,
wdt:Q28865 ;
rdfs:comment "Docker File with a echo server" ;
foaf:homepage "https://hub.docker.com/r/ealen/echo-server"^^xsd:anyURI .
:AtLeast100Replicas rdf:type owl:NamedIndividual ,
:ConcurrencyRequirement ;
:minConcurrency "100"^^xsd:positiveInteger .
:Cpu_x86 rdf:type owl:NamedIndividual ,
:CPURequirement ;
:cpuArch wd:Q272629 .
:Max10seconds rdf:type owl:NamedIndividual ,
:ExecutionTimeRequirement ;
:maxTimeAllowed "10"^^xsd:positiveInteger .
:Max512MB rdf:type owl:NamedIndividual ,
:MemoryRequirement ;
:maxAllowedRAM "512"^^xsd:positiveInteger .
```
## SPARQL Examples
For more example see [this list](./sparql)
### Get all execution environments
```sparql
PREFIX rdf:
PREFIX faas:
SELECT DISTINCT ?subject
WHERE {
?subject rdf:type owl:NamedIndividual .
?subject rdf:type faas:ServerlessExecutionEnvironment .
}
```
[terms]: http://purl.org/dc/terms/
[foaf]: http://xmlns.com/foaf/0.1/
[dc]: http://purl.org/dc/elements/1.1/
[owl]: http://www.w3.org/2002/07/owl#
[rdf]: http://www.w3.org/1999/02/22-rdf-syntax-ns#
[time]: http://www.w3.org/2006/time#
[locn]: http://www.w3.org/ns/locn#
[dave]: http://theme-e.adaptcentre.ie/dave#
[wd]: http://www.wikidata.org/entity/
[wdt]: http://www.wikidata.org/prop/direct/
[xsd]: http://www.w3.org/2001/XMLSchema#
[rdfs]: http://www.w3.org/2000/01/rdf-schema#