The buildbot's intro from thoppe

buildbot's Introduction

Implementing buildbot and it's flows as a graph database.

Graph Schema

The graph schema can be auto-generated by buildbot_flows/utils.py

Demo

The results of demo.py should look something like:

Startup a docker instance of neo4j

fab docker

Assign some login parameters, these are local to your neo4j server.

neo4j_login = {
    "username" : "buildbot",
    "password" : "tulsa",
    "url" : "http://localhost:7475"
}

Create a new graph connection

gdb = enhanced_GraphDatabase(**neo4j_login)

WARNING: this is a hard reset and will wipe any existing neo4j database. It's useful here for testing purposes only.

hard_reset(gdb)

Define some flows and some relationships:

flow = defined_nodes["flow"]
job  = defined_nodes["job"]

f1 = gdb.add_node(flow(description = "Install neo4j-rest-client"))
f2 = gdb.add_node(flow(description = "pip install neo4jrestclient"))
f3 = gdb.add_node(flow(description = "Install pip"))
f4 = gdb.add_node(flow(description = "sudo apt-get install pip"))

depends = defined_relationships[("flow","depends","flow")]
gdb.add_relationship(depends(f1,f2))
gdb.add_relationship(depends(f2,f3))
gdb.add_relationship(depends(f3,f4))

job_required = defined_relationships[("flow","requires","job")]
developer = gdb.add_node(job(description = "Developer"))
system_admin = gdb.add_node(job(description = "System Admin"))

gdb.add_relationship(job_required(f3,developer,time=0.5))
gdb.add_relationship(job_required(f2,developer,time=0.1))
gdb.add_relationship(job_required(f4,system_admin,time=0.25))

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