docs/img/container-launch-sequence-diagram.svg

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stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0; stroke-dasharray: 2.0,2.0;" x1="79.5" x2="233.5" y1="180.9609" y2="180.9609"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="91" x="91.5" y="175.895">snapshot $foo</text><polygon fill="#A80036" points="476.5,213.0938,486.5,217.0938,476.5,221.0938,480.5,217.0938" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="74.5" x2="482.5" y1="217.0938" y2="217.0938"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="88" x="81.5" y="212.0278">create VM $id</text><polygon fill="#A80036" points="589.5,242.2266,599.5,246.2266,589.5,250.2266,593.5,246.2266" style="stroke: #A80036; stroke-width: 1.0;"/><line style="stroke: #A80036; stroke-width: 1.0;" x1="488.5" x2="595.5" y1="246.2266" y2="246.2266"/><text fill="#000000" font-family="sans-serif" font-size="13" lengthAdjust="spacingAndGlyphs" textLength="89" x="495.5" y="241.1606">launch VM $id</text><rect fill="#FEFECE" filter="url(#f1kuzinzv08wkq)" height="30.2969" style="stroke: #A80036; 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@startuml
participant orchestrator
participant containerd
participant snapshotter
participant "control plugin"


loop "for each container"
orchestrator -> containerd: prepare snapshot
containerd -> snapshotter: prepare snapshot
snapshotter - -> containerd: snapshot $foo
containerd - -> orchestrator: snapshot $foo
end

orchestrator -> "control plugin": create VM $id
create runtime
"control plugin" -> runtime: launch VM $id
create Firecracker
runtime -> Firecracker: launch
runtime -> Firecracker ++: configure & boot
create agent
runtime <-> agent: connect
"control plugin" - -> orchestrator: VM $id running

loop "for each container"
orchestrator -> containerd: run container\n$bar with\nsnapshot $foo
containerd -> runtime: run container $bar with snapshot $foo
runtime->Firecracker: attach snapshot\n$foo as device
runtime->agent: mount snapshot $foo
runtime->agent: run container $bar
create "container process"
agent->"container process": start process
activate "container process"
note left of "container process"
After some
time, container
process exits
end note
return
agent -> runtime: container $bar exited
runtime -> containerd: container $bar exited
containerd -> orchestrator: container $bar exited
end

orchestrator -> "control plugin": stop VM $id
"control plugin" -> Firecracker: stop
deactivate Firecracker
@enduml

PlantUML version 1.2019.05(Sat Apr 20 09:45:36 PDT 2019)
(GPL source distribution)
Java Runtime: OpenJDK Runtime Environment
JVM: OpenJDK 64-Bit Server VM
Java Version: 1.8.0_152-release-1343-b28
Operating System: Linux
OS Version: 4.15.0-50-generic
Default Encoding: UTF-8
Language: en
Country: US
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