L4 Network Load Balancer Example

strict graph "main"
{
    layout="dot";
    splines="line";
    imagepath="C:\Users\Jeffr\OneDrive\Desktop";
    rankdir="TB";
    newrank="true";

    label="L4 Network Load Balancer"
    labelloc="t"
    "text1"[ shape="plaintext" fontname="Arial" fontsize="8" label="Blue objects are resources which need\lto be created\l" ];
    "ip" -- "tp"[ color="Blue:White:Blue" penwidth="2" arrowhead="none" fontname="Arial" fontsize="10" label="Forwarding Rule" ];
    "tp" -- "hc"[ weight="10" ];
    subgraph "cluster_1" { fontname="Arial" fontsize="10" color="blue" style="rounded" label="Firewall\nRules"
        "fw1"[ shape="point" label="" ];
        "fw2"[ shape="point" label="" ];
        "fw3"[ shape="point" label="" ];
    }
    {rank="same"; "ip"; "tp"; "fw1"; "vm1";}
    {rank="same"; "fw2"; "vm2";}
    {rank="same"; "fw3"; "vm3";}
    "tp" -- "fw1";
    "tp" -- "fw2";
    "tp" -- "fw3";
    "vm1" -- "vm2"[ style="invis" color="Invis" weight="10" ];
    "vm2" -- "vm3"[ style="invis" color="Invis" weight="10" ];
    "fw1" -- "vm1";
    "fw2" -- "vm2";
    "fw3" -- "vm3";
    "fw1" -- "fw2"[ style="invis" color="Invis" ];
    "fw2" -- "fw3"[ style="invis" color="Invis" ];
    "fw3" -- "text2"[ style="invis" color="Invis" ];
    "text2"[ shape="plaintext" fontname="Arial" fontsize="8" label="A Target pool requires a Health check\lresource.\l" ];
    "ip"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="IP" xlabel="IP" ];
    "vm1"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="VM" ];
    "vm2"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="VM" ];
    "vm3"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="VM" ];
    "tp"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="TP" xlabel="\nTarget Pool (TP)" ];
    "hc"[ shape="circle" height="0.25" fixedsize="True" style="filled" penwidth="1" fontname="Arial" fontsize="8" color="blue" fillcolor="white" label="HC" xlabel="Health Check (HC)" ];
}