cluster-create.puml

@startuml

header **CB-Ladybug** (v0.7.0-cortado)
title Create a cluster
hide footbox

participant	"Client"		as webtool		#d1e0ff
participant	"Ladybug"		as provider
database	"Ladybug data"		as db
participant	"Tumblebug"		as tumblebug	#d1e0ff
participant	"Nodes"			as nodes		#eeeeee
participant	"Control plane"	as mNodes		#eeeeee
participant	"Worker nodes"	as wNodes		#eeeeee

skinparam sequence {
	GroupColor DeepSkyBlue
}


activate webtool
	webtool		->	provider		: POST/ns/:ns/clusters/:cluster\n{name, controlPlane:{}, workrer:{}, config:{}}

		activate provider

			'-- 1.validation
			alt validation
				'-- 1.1. namespace
				provider	->	tumblebug	: GET /ns/:ns
				tumblebug	-->	provider	: {namespace}
				provider	->	webtool		: error (if it does not exist)

				'-- 1.2. connection
				provider	->	tumblebug	: GET /connConfig/:connection
				tumblebug	-->	provider	: {connection}
				provider	->	webtool		: error (if it does not exist)

				'-- 1.2. connection
				provider	->	provider	: check control-plane & worker count
				provider	->	webtool		: error (if it is wrong)

				'-- 1.3. Ladybug
				provider	->	db			: select()
				db			-->	provider	: {mcks}
				provider	->	webtool		: [if it exists] error 

				'-- 1.4. UpdatePhase
				provider	->	db			: UpdatePhase()

				'-- 1.6. validate exists a MCIS
				provider	->	tumblebug	: GET /ns/:ns/mcis/:mcis
				tumblebug	-->	provider	: {mcis}
				provider	->	webtool		: [if it exists] error 

			end

			'-- 2.Create a MCIR 
			loop target connections(regions)


				alt validate MCIR
					'-- 2.1 validate CSP
					provider	->	provider	: validate CSP
					provider	->	webtool		: error (if CSP does not exist)

					'-- 2.2 validate spec.
					provider	->	tumblebug	: POST /lookupSpec
					tumblebug	-->	provider	: {spec}
					provider	->	webtool	: [if it does not exist]


					'-- 2.3 validate region
					provider	->	tumblebug	: GET /region/:region
					tumblebug	-->	provider	: {region}
					provider	->	webtool	: [if it does not exist]

				end

				alt create a MCIR

					'-- 2.4. vpc
					provider	->	tumblebug	: GET /ns/:ns/resources/vNet/:vpc
					tumblebug	-->	provider	: {vpc}
					provider	->	tumblebug	: [if it does not exist]\nPOST s/:ns/resources/vNet
					tumblebug	-->	provider	: {vpc}
					provider	->	webtool		: [if there is an error] error


					'-- 2.5. sg(fw)
					provider	->	tumblebug	: GET /ns/:ns/resources/securityGroup/:sg
					tumblebug	-->	provider	: {securityGroup}
					provider	->	tumblebug	: [if it does not exist]\nPOST /ns/:ns/resources/securityGroup
					tumblebug	-->	provider	: {securityGroup}
					provider	->	webtool		: [if there is an error] error

					'-- 2.6. ssh
					provider	->	tumblebug	: GET /ns/:ns/resources/sshKey/:key
					tumblebug	-->	provider	: {keypair}
					provider	->	tumblebug	: [if it does not exist] POST /ns/:ns/resources/sshKey
					tumblebug	-->	provider	: {keypair}
					provider	->	webtool		: [if there is an error] error

				
					'-- 2.7. image
					provider	->	tumblebug	: GET /ns/:ns/resources/image/:image
					tumblebug	-->	provider	: {image}
					provider	->	tumblebug 	: [if it does not exist]\nPOST /ns/:ns/resources/image
					tumblebug	-->	provider	: {image}
					provider	->	webtool		: [if there is an error] error

					'-- 2.8. spec
					provider	->	tumblebug	: GET /ns/:ns/resources/spec/:spec
					tumblebug	-->	provider	: {spec}
					provider	->	tumblebug 	: [if it does not exist]\nPOST /ns/:ns/resources/spec
					tumblebug	-->	provider	: {spec}
					provider	->	webtool		: [if there is an error] error

				end

			end

			'-- 3. create a MCIS
			alt create a MCIS (VMs)
				provider	->	provider	: append VMs (while node count)
				provider	->	tumblebug	: POST /ns/:ns/mcis/:mcis
				tumblebug	-->	provider	: {mcis}
				provider	->	webtool		: [if there is an error] error
			end


			' -- 4. boostrap
			alt bootstrap
				loop VMs
					provider	<->o	nodes		: test ssh connection
					provider	<->o	nodes		: copy scripts
					provider	<->o	nodes		: systemd
					provider	<->o	nodes		: bootstrap
					provider	->		webtool		: [if there is an error] error
				end
			end

			' -- 5 control-plane init
			alt control-plane init (leader of control-plane VM)
				provider	<->o	mNodes		: haproxy / nlb
				provider	<->o	mNodes		: init
				provider	<->o	mNodes		: install network CNI
				provider	->		webtool		: [if there is an error] error
			end

			' -- 6. control-plane join
			alt control-plane join
				loop not leader of control-plane VMs
					provider	<->o	mNodes		: join (not leader of control-plane VMs)
					provider	->		webtool		: [if there is an error] error
				end
			end


			' -- 67 worker join
			alt wokers join
				loop woker VMs
					provider	<->o	wNodes		: join
					provider	->	webtool			: [if there is an error] error
				end
			end

		deactivate provider

		provider	->	db						: complete {cluster}
		provider	-->	webtool					: {cluster}

deactivate webtool

@enduml