// Start architecture
func Start(a *archV0r1) {
var r string
if archaius.Conf.Population < 1 {
log.Fatal("architecture: can't create less than 1 microservice")
} else {
log.Printf("architecture: scaling to %v%%", archaius.Conf.Population)
}
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
for _, s := range a.Services {
log.Printf("Starting: %v\n", s)
r = asgard.Create(s.Name, s.Gopackage, s.Regions*archaius.Conf.Regions, s.Count*archaius.Conf.Population/100, s.Dependencies...)
}
asgard.Run(r, a.Victim) // run the last service in the list, and point chaos monkey at the victim
}
// Start lamp to netflixoss step by step migration
func Start() {
regions := archaius.Conf.Regions
if archaius.Conf.Population < 1 {
log.Fatal("migration: can't create less than 1 microservice")
} else {
log.Printf("migration: scaling to %v%%", archaius.Conf.Population)
}
// Build the configuration step by step
// start mysql data store layer, which connects to itself
mysqlcount := 2
sname := "rds-mysql"
// start memcached layer, only one per region
mname := "memcache"
mcount := 1
if archaius.Conf.StopStep >= 3 {
// start evcache layer, one per zone
mname = "evcache"
mcount = 3
}
// priam managed Cassandra cluster, turtle because it's used to configure other clusters
priamCassandracount := 12 * archaius.Conf.Population / 100
cname := "cassTurtle"
// staash data access layer connects to mysql master and slave, and evcache
staashcount := 6 * archaius.Conf.Population / 100
tname := "turtle"
// php business logic, we can create a network of simple services from the karyon package
phpcount := 9 * archaius.Conf.Population / 100
pname := "php"
// some node microservice logic, we can create a network of simple services from the karyon package
nodecount := 9 * archaius.Conf.Population / 100
nname := "node"
// zuul api proxies and insert between elb and php
zuulcount := 9 * archaius.Conf.Population / 100
zuname := "wwwproxy"
// AWS elastic load balancer
elbname := "www-elb"
// DNS endpoint
dns := "www"
switch archaius.Conf.StopStep {
case 0: // basic LAMP
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(pname, asgard.MonolithPkg, regions, phpcount, sname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, pname)
case 1: // basic LAMP with memcache
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(pname, asgard.MonolithPkg, regions, phpcount, sname, mname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, pname)
case 2: // LAMP with zuul and memcache
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(pname, asgard.MonolithPkg, regions, phpcount, sname, mname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 3: // LAMP with zuul and staash and evcache
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, sname, mname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 4: // added node microservice
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, sname, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 5: // added cassandra alongside mysql
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(cname, asgard.PriamCassandraPkg, regions, priamCassandracount, cname)
asgard.Create(sname, asgard.StorePkg, regions, mysqlcount, sname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, sname, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 6: // removed mysql so that multi-region will work properly
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(cname, asgard.PriamCassandraPkg, regions, priamCassandracount, cname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 7: // set two regions with disconnected priamCassandra
regions = 2
archaius.Conf.Regions = regions
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(cname, asgard.PriamCassandraPkg, regions, priamCassandracount, cname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 8: // set two regions with connected priamCassandra
regions = 2
archaius.Conf.Regions = regions
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(cname, asgard.PriamCassandraPkg, regions, priamCassandracount, "eureka", cname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
case 9: // set three regions with disconnected priamCassandra
regions = 3
archaius.Conf.Regions = regions
asgard.CreateChannels()
asgard.CreateEureka() // service registries for each zone
asgard.Create(cname, asgard.PriamCassandraPkg, regions, priamCassandracount, "eureka", cname)
asgard.Create(mname, asgard.StorePkg, regions, mcount)
asgard.Create(tname, asgard.StaashPkg, regions, staashcount, mname, cname)
asgard.Create(pname, asgard.KaryonPkg, regions, phpcount, tname)
asgard.Create(nname, asgard.KaryonPkg, regions, nodecount, tname)
asgard.Create(zuname, asgard.ZuulPkg, regions, zuulcount, pname, nname)
asgard.Create(elbname, asgard.ElbPkg, regions, 0, zuname)
}
dnsname := asgard.Create(dns, asgard.DenominatorPkg, 0, 0, elbname)
asgard.Run(dnsname, "")
}