design.svg

<?xml version="1.0" encoding="UTF-8" standalone="no"?><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" contentScriptType="application/ecmascript" contentStyleType="text/css" height="937px" preserveAspectRatio="none" style="width:853px;height:937px;" version="1.1" viewBox="0 0 853 937" width="853px" zoomAndPan="magnify"><defs/><g><text fill="#000000" font-family="sans-serif" font-size="18" lengthAdjust="spacing" textLength="297" x="271.75" y="17.9999">Ephemeral Namespace Management</text><!--MD5=[8fc3522a43f8c7199df5e09e5bb0188e]
entity user--><rect fill="#08427B" height="101.6001" style="stroke:#073B6F;stroke-width:1.5;" width="133" x="495" y="28.5999"/><text fill="#FFFFFF" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="47" x="538" y="50.5999">«person»</text><image height="48" width="48" x="537.5" xlink:href="data:image/png;base64,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" y="53"/><text fill="#FFFFFF" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="113" x="505" y="117">App Developer</text><!--MD5=[4aa972818ec38d935100ae0cd4c94b22]
entity reso--><rect fill="#85BBF0" height="135.1999" style="stroke:#78A8D8;stroke-width:1.5;" width="202" x="369.5" y="235.5999"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="69" x="436" y="257.5999">«component»</text><text fill="#000000" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="182" x="379.5" y="276">NamespaceReservation</text><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="116" x="412.5" y="291.2001">[k8s custom resource]</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="0" x="472.5" y="307.6"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="146" x="397.5" y="324.4">Acts as interface for the</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="151" x="393" y="341.1999">lifecycle of an ephemeral</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="71" x="435" y="357.9998">namespace</text><!--MD5=[c05fcadc036a699206cfdfa4a4fdb889]
entity controller--><rect fill="#85BBF0" height="187.9998" style="stroke:#78A8D8;stroke-width:1.5;" width="219" x="365" y="489.5999"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="69" x="440" y="511.5999">«component»</text><text fill="#000000" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="182" x="381.5" y="530">NamespaceReservation</text><text fill="#000000" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="73" x="438" y="549.2">controller</text><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="78" x="435.5" y="564.4001">[k8s controller]</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="0" x="476.5" y="580.8001"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="126" x="411.5" y="597.6">Manages ephemeral</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="174" x="385.5" y="614.3999">namespaces.  Specifically, it</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="195" x="375" y="631.1999">creates ephemeral namespaces</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="151" x="397" y="647.9998">and populates them with</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="119" x="415" y="664.7997">common resources.</text><!--MD5=[42a0a2711e18aa980e3ea9f910af1c90]
entity pool--><rect fill="#85BBF0" height="135.1999" style="stroke:#78A8D8;stroke-width:1.5;" width="175" x="7" y="516.0999"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="69" x="60" y="538.0999">«component»</text><text fill="#000000" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="128" x="30.5" y="556.5">Namespace pool</text><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="97" x="46" y="571.7001">[k8s namespaces]</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="0" x="96.5" y="588.1"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="131" x="29" y="604.9">Pool of pre-populated</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="151" x="17" y="621.6999">namespaces ready to be</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="53" x="68" y="638.4998">reserved</text><!--MD5=[5afec40478bd2c44543bda9262cdccd2]
entity ns--><rect fill="#85BBF0" height="135.1999" style="stroke:#78A8D8;stroke-width:1.5;" width="210" x="455.5" y="796.5999"/><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="69" x="526" y="818.5999">«component»</text><text fill="#000000" font-family="sans-serif" font-size="16" font-weight="bold" lengthAdjust="spacing" textLength="189" x="466" y="837">Checked out namesapce</text><text fill="#000000" font-family="sans-serif" font-size="12" font-style="italic" lengthAdjust="spacing" textLength="91" x="515" y="852.2001">[k8s namespace]</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="0" x="562.5" y="868.6"/><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="166" x="477.5" y="885.4">Namespace checked out to</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="186" x="465.5" y="902.1999">user.  Will be deleted at end of</text><text fill="#000000" font-family="sans-serif" font-size="14" lengthAdjust="spacing" textLength="68" x="526.5" y="918.9998">reservation</text><!--MD5=[ea9e2598713c9025efa1b27283761412]
link user to reso--><path d="M494.76,129.6499 C486.19,138.9399 478.63,149.3199 473.5,160.5999 C464.16,181.1199 461.13,205.0999 461.09,227.4299 " fill="none" id="user-to-reso" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="461.2,235.5699,464.0854,227.5278,458.086,227.6135,461.2,235.5699" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="146" x="475" y="173.5999">User creates reservation,</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="150" x="474.5" y="188">and reads it to know which</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="105" x="497" y="202.4002">namespace to use</text><!--MD5=[141d7bc09a74142dc7b80f0876ecda08]
link reso to controller--><path d="M466.59,370.7899 C466.14,380.7799 465.75,390.9599 465.5,400.5999 C464.82,426.8099 464.54,433.3999 465.5,459.5999 C465.75,466.5199 466.09,473.6599 466.47,480.8399 " fill="none" id="reso-to-controller" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="466.95,489.2899,469.4887,481.1317,463.4985,481.474,466.95,489.2899" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="93" x="489" y="413.5999">Controller reads</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="138" x="466.5" y="428">reservation to check out</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="138" x="466.5" y="442.4002">namespace and to know</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="82" x="496" y="456.8003">when to delete</text><!--MD5=[15dff7166eb2bde74eb506429fef4681]
link pool to controller--><path d="M182.16,583.5999 C233.97,583.5999 300.25,583.5999 356.6,583.5999 " fill="none" id="pool-to-controller" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="364.84,583.5999,356.84,580.5999,356.84,586.5999,364.84,583.5999" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="136" x="204" y="534.5999">Controller keeps pool of</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="143" x="200.5" y="549">'on-deck' namespaces to</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="116" x="214" y="563.4002">speed up ephemeral</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="141" x="203" y="577.8003">environment initialization</text><!--MD5=[81e25177867db8684ed73639483a9313]
link controller to ns--><path d="M473.11,677.9199 C475.19,707.0499 480.12,738.8199 490.5,766.5999 C493.35,774.2299 496.98,781.7999 501.09,789.1399 " fill="none" id="controller-to-ns" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="505.34,796.4099,503.8841,787.9908,498.7073,791.024,505.34,796.4099" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="124" x="494.5" y="720.5999">Checks out by setting</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="102" x="505.5" y="735">name on status of</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="130" x="491.5" y="749.4002">reservation and adding</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="75" x="520.5" y="763.8003">RoleBindings</text><!--MD5=[76f3cbf232e5eeb01131ab10732dad94]
link user to ns--><path d="M613.08,130.9699 C619.79,140.1599 625.66,150.1599 629.5,160.5999 C722.42,413.3999 711.76,510.1399 629.5,766.5999 C627.05,774.2499 623.74,781.8099 619.9,789.1199 " fill="none" id="user-to-ns" style="stroke:#666666;stroke-width:1.0;"/><polygon fill="#666666" points="615.88,796.3499,622.3905,790.8169,617.1471,787.9003,615.88,796.3499" style="stroke:#666666;stroke-width:1.0;"/><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="124" x="707" y="420.5999">Interacts directly with</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="150" x="695.5" y="435">namespace once checked</text><text fill="#666666" font-family="sans-serif" font-size="12" font-weight="bold" lengthAdjust="spacing" textLength="18" x="761.5" y="449.4002">out</text><!--MD5=[7a686af8f4e7f4c7c04926ec0bb44c50]
@startuml
title Ephemeral Namespace Management
!include <C4/C4_Component>

Person(user, "App Developer")
Component(reso, "NamespaceReservation", "k8s custom resource", "Acts as interface for the lifecycle of an ephemeral namespace")
Component(controller, "NamespaceReservation controller", "k8s controller", "Manages ephemeral namespaces.  Specifically, it creates ephemeral namespaces and populates them with common resources.")
Component(pool, "Namespace pool", "k8s namespaces", "Pool of pre-populated namespaces ready to be reserved")
Component(ns, "Checked out namesapce", "k8s namespace", "Namespace checked out to user.  Will be deleted at end of reservation")

Rel(user, reso, "User creates reservation, and reads it to know which namespace to use")
Rel(reso, controller, "Controller reads reservation to check out namespace and to know when to delete")
Rel_R(pool, controller, "Controller keeps pool of 'on-deck' namespaces to speed up ephemeral environment initialization")
Rel(controller, ns, "Checks out by setting name on status of reservation and adding RoleBindings")
Rel(user, ns, "Interacts directly with namespace once checked out")

@enduml

@startuml
title Ephemeral Namespace Management








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rectangle "<$person>\n==App Developer" <<person>> as user
rectangle "==NamespaceReservation\n//<size:12>[k8s custom resource]</size>//\n\n Acts as interface for the lifecycle of an ephemeral namespace" <<component>> as reso
rectangle "==NamespaceReservation controller\n//<size:12>[k8s controller]</size>//\n\n Manages ephemeral namespaces.  Specifically, it creates ephemeral namespaces and populates them with common resources." <<component>> as controller
rectangle "==Namespace pool\n//<size:12>[k8s namespaces]</size>//\n\n Pool of pre-populated namespaces ready to be reserved" <<component>> as pool
rectangle "==Checked out namesapce\n//<size:12>[k8s namespace]</size>//\n\n Namespace checked out to user.  Will be deleted at end of reservation" <<component>> as ns

user - ->> reso : **User creates reservation, and reads it to know which namespace to use**
reso - ->> controller : **Controller reads reservation to check out namespace and to know when to delete**
pool -RIGHT->> controller : **Controller keeps pool of 'on-deck' namespaces to speed up ephemeral environment initialization**
controller - ->> ns : **Checks out by setting name on status of reservation and adding RoleBindings**
user - ->> ns : **Interacts directly with namespace once checked out**

@enduml

PlantUML version 1.2021.5(Sun Apr 25 11:20:28 GMT 2021)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Default Encoding: UTF-8
Language: en
Country: US
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