Schema: robos:RemoteExecutionCluster

Formal W3C SHACL constraint shape and OSLC JSON-LD specification for robos:RemoteExecutionCluster in the devops package store.

Table of contents

  1. Specification Metadata
  2. Upstream Schema Basis (Refers From) & Global Standards Provenance
  3. Entity Relationship & Schema Context
  4. Property Constraints & SHACL Rules
  5. Canonical OSLC JSON-LD Example
  6. Programmatic SHACL Validation

Specification Metadata

Upstream Schema Basis (Refers From) & Global Standards Provenance

This RobOS schema is modeled after and directly aligns with two levels of global standards:

  • Universal Schema.org Class: https://schema.org/ComputerPlatform (100% interoperability with search engines, web indexers, and general AI reasoning)
  • Specialized Domain Standard: https://github.com/bazelbuild/remote-apis (de facto standard for domain-specific ALM, BDD, or infrastructure operations)
  • Canonical Reference: https://schema.org/ComputerPlatform
  • Agent Guidelines: When autonomous agents generate, expand, or validate instances of robos:RemoteExecutionCluster, they MUST adhere to and base their output on this referred schema object and universal Schema.org parent class, extending it with RobOS SDLC properties.

Entity Relationship & Schema Context

Remote Execution Cluster robos:RemoteExecutionCluster

Governed by W3C SHACL shape urn:robos:shape:RemoteExecutionClusterShape within the DevOps & Cloud (robos.devops) (robos.devops) package store.

dcterms:title robos:protocol robos:provider robos:executionEndpoint robos:casEndpoint

Property Constraints & SHACL Rules

Property Path Name Multiplicity Data Type Constraint Rule / Validation Message
dcterms:title Title / Display Name 1..* xsd:string Remote Execution Cluster must have a title.
robos:protocol Protocol / Standard 1..* xsd:string Remote Execution Cluster must declare protocol standard (e.g. REAPI_v2).
robos:provider Backend Provider 1..* xsd:string Remote Execution Cluster must declare backend provider engine (e.g. buildbarn, nativelink, buildgrid).
robos:executionEndpoint Execution Endpoint 1..* xsd:anyURI Remote Execution Cluster must specify execution endpoint URI.
robos:casEndpoint CAS Endpoint 1..* xsd:anyURI Remote Execution Cluster must specify Content Addressable Storage (CAS) endpoint URI.

Canonical OSLC JSON-LD Example 

{
  "@id": "urn:robos:remote-execution:acme-buildbarn-cluster",
  "@type": [
    "robos:RemoteExecutionCluster",
    "robos:RemoteBuildCluster",
    "oslc:Resource",
    "schema:ComputerPlatform"
  ],
  "dcterms:title": "Acme Production Buildbarn REAPI Cluster",
  "dcterms:description": "High-performance distributed remote execution & CAS caching cluster using Buildbarn suite.",
  "robos:protocol": "REAPI_v2",
  "robos:provider": "buildbarn",
  "robos:instanceName": "main",
  "robos:executionEndpoint": "grpc://re-execution.buildbarn.internal:8980",
  "robos:casEndpoint": "grpc://re-cas.buildbarn.internal:8980",
  "robos:actionCacheEndpoint": "grpc://re-cas.buildbarn.internal:8980",
  "robos:browserEndpoint": "http://re-browser.buildbarn.internal:7984",
  "robos:tlsEnabled": false,
  "robos:status": "active",
  "robos:workerPools": [
    {
      "name": "linux-x86_64-large",
      "osFamily": "linux",
      "isa": "x86-64",
      "containerImage": "docker://gcr.io/cloud-marketplace/google/debian11:latest",
      "concurrency": 64
    }
  ],
  "robos:cacheSettings": {
    "maxSizeBytes": "500GB",
    "retentionDays": 14,
    "evictionPolicy": "lru"
  },
  "robos:package": "devops",
  "robos:namespace": "robos.devops",
  "robos:schemaOrgType": "https://schema.org/ComputerPlatform",
  "robos:domainStandard": "https://github.com/bazelbuild/remote-apis"
}

Programmatic SHACL Validation 

const { SHACLValidator } = require('/usr/local/share/robos/robos-graph/lib/shacl-validator');
const { OSLCGraphParser, OSLC_CONTEXT } = require('/usr/local/share/robos/robos-graph/lib/oslc-parser');

const validator = new SHACLValidator();
const result = validator.validateGraph(new OSLCGraphParser({
  "@context": OSLC_CONTEXT,
  "robos:nodes": [
    {
        "@id": "urn:robos:remote-execution:acme-buildbarn-cluster",
        "@type": [
            "robos:RemoteExecutionCluster",
            "robos:RemoteBuildCluster",
            "oslc:Resource",
            "schema:ComputerPlatform"
        ],
        "dcterms:title": "Acme Production Buildbarn REAPI Cluster",
        "dcterms:description": "High-performance distributed remote execution & CAS caching cluster using Buildbarn suite.",
        "robos:protocol": "REAPI_v2",
        "robos:provider": "buildbarn",
        "robos:instanceName": "main",
        "robos:executionEndpoint": "grpc://re-execution.buildbarn.internal:8980",
        "robos:casEndpoint": "grpc://re-cas.buildbarn.internal:8980",
        "robos:actionCacheEndpoint": "grpc://re-cas.buildbarn.internal:8980",
        "robos:browserEndpoint": "http://re-browser.buildbarn.internal:7984",
        "robos:tlsEnabled": false,
        "robos:status": "active",
        "robos:workerPools": [
            {
                "name": "linux-x86_64-large",
                "osFamily": "linux",
                "isa": "x86-64",
                "containerImage": "docker://gcr.io/cloud-marketplace/google/debian11:latest",
                "concurrency": 64
            }
        ],
        "robos:cacheSettings": {
            "maxSizeBytes": "500GB",
            "retentionDays": 14,
            "evictionPolicy": "lru"
        },
        "robos:package": "devops",
        "robos:namespace": "robos.devops",
        "robos:schemaOrgType": "https://schema.org/ComputerPlatform",
        "robos:domainStandard": "https://github.com/bazelbuild/remote-apis"
    }
  ],
}));

console.log("Conforms:", result.conforms); // Expected: true