developer-docs/architecture/update.svg

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height="29.3105" style="stroke:#A80036;stroke-width:1.0;" width="10" x="1315" y="209.3516"/><rect fill="#FFFFFF" filter="url(#frt0s89gdpm1r)" height="29.3105" style="stroke:#A80036;stroke-width:1.0;" width="10" x="1315" y="322.5938"/><polygon fill="#A80036" points="409,88.1094,419,92.1094,409,96.1094,413,92.1094" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="63" x2="415" y1="92.1094" y2="92.1094"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="339" x="70" y="87.3672">RegisterResourceRequest(type, name, inputs, options)</text><polygon fill="#A80036" points="761,117.4199,771,121.4199,761,125.4199,765,121.4199" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="431" x2="767" y1="121.4199" y2="121.4199"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="323" x="438" y="116.6777">RegisterResourceEvent(type, name, inputs, options)</text><polygon fill="#A80036" points="1303,146.7305,1313,150.7305,1303,154.7305,1307,150.7305" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="783" x2="1309" y1="150.7305" y2="150.7305"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="244" x="790" y="145.9883">CheckRequest(type, inputs, old inputs)</text><polygon fill="#A80036" points="794,176.041,784,180.041,794,184.041,790,180.041" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="788" x2="1319" y1="180.041" y2="180.041"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="205" x="800" y="175.2988">CheckResponse(inputs', failures)</text><polygon fill="#A80036" points="1303,205.3516,1313,209.3516,1303,213.3516,1307,209.3516" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="783" x2="1309" 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L375,291.6621 L764,291.6621 L764,261.6621 L754,251.6621 L375,251.6621 " fill="#FBFB77" filter="url(#frt0s89gdpm1r)" style="stroke:#A80036;stroke-width:1.0;"/><path d="M754,251.6621 L754,261.6621 L764,261.6621 L754,251.6621 " fill="#FBFB77" style="stroke:#A80036;stroke-width:1.0;"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="357" x="381" y="269.2305">This is fire-and-forget on the part of the step generator.</text><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="368" x="381" y="284.541">The step will run in parallel with steps for other resources.</text><polygon fill="#A80036" points="1303,318.5938,1313,322.5938,1303,326.5938,1307,322.5938" style="stroke:#A80036;stroke-width:1.0;"/><line style="stroke:#A80036;stroke-width:1.0;" x1="1053" x2="1309" y1="322.5938" y2="322.5938"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="243" x="1060" 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y1="410.5254" y2="410.5254"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacing" textLength="287" x="80" y="405.7832">RegisterResourceResponse(urn, ID, new state)</text><!--MD5=[ce0dabcd46e32ec299df65916d3f0d5a]
@startuml
participant "Language SDK" order 10
box "Engine"
participant "Resource Monitor" order 15
participant "Step Generator" order 20
participant "Step Executor" order 25
end box
participant "Resource Provider" order 30

"Language SDK" -> "Resource Monitor" ++ : RegisterResourceRequest(type, name, inputs, options)
"Resource Monitor" -> "Step Generator" ++ : RegisterResourceEvent(type, name, inputs, options)
"Step Generator" -> "Resource Provider" ++ : CheckRequest(type, inputs, old inputs)
"Step Generator" <- "Resource Provider" - - : CheckResponse(inputs', failures)
"Step Generator" -> "Resource Provider" ++ : DiffRequest(type, inputs', old state, options)
"Step Generator" <- "Resource Provider" - - : DiffResponse(diffs)
"Step Generator" -> "Step Executor" - -++ : UpdateStep(inputs', old state, options)
note left
	This is fire-and-forget on the part of the step generator.
	The step will run in parallel with steps for other resources.
end note
"Step Executor" -> "Resource Provider" ++ : UpdateRequest(type, inputs', old state)
"Step Executor" <- "Resource Provider" - - : UpdateResponse(new state)
"Resource Monitor" <- "Step Executor" - - : done(new state)
"Language SDK" <- "Resource Monitor" - - : RegisterResourceResponse(urn, ID, new state)
@enduml

PlantUML version 1.2021.9(Sun Jul 25 03:13:56 PDT 2021)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Default Encoding: UTF-8
Language: en
Country: US
--></g></svg>