direction: down

internet: "Internet" { class: accent }
igw_a: "IGW-A"
igw_b: "IGW-B"
igw_c: "IGW-C"

net_a: "Net-A · 10.10.0.0/22 · eu-west-2a" {
  pub: "Sub public\nNAT + bastion"
  priv: "Sub private\nfrontends"
  data: "Sub data\nBDD primaire" { shape: cylinder }
}
net_b: "Net-B · 10.11.0.0/22 · eu-west-2b" {
  pub: "Sub public\nNAT"
  priv: "Sub private\nfrontends"
  data: "Sub data\nreplica 1" { shape: cylinder }
}
net_c: "Net-C · 10.12.0.0/22 · eu-west-2c" {
  pub: "Sub public\nNAT"
  priv: "Sub private\nfrontends"
  data: "Sub data\nreplica 2" { shape: cylinder }
}

internet -- igw_a
internet -- igw_b
internet -- igw_c
igw_a -- net_a.pub
igw_b -- net_b.pub
igw_c -- net_c.pub

peering: "Net Peering full-mesh\n3 peerings : A↔B, A↔C, B↔C" { class: muted }

net_a <-> peering { class: principal }
net_b <-> peering { class: principal }
net_c <-> peering { class: principal }