sshportal/.assets/flow-diagram.dot
2019-02-01 12:56:07 +01:00

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digraph {
node[shape=record;style=rounded;fontname="helvetica-bold"];
graph[layout=dot;rankdir=LR;overlap=prism;splines=true;fontname="helvetica-bold"];
edge[arrowhead=none;fontname="helvetica"];
start[label="\$\> ssh sshportal";color=blue;fontcolor=blue;fontsize=18];
subgraph cluster_sshportal {
graph[fontsize=18;color=gray;fontcolor=black];
label="sshportal";
{
node[color=darkorange;fontcolor=darkorange];
known_user_key[label="known user key"];
unknown_user_key[label="unknown user key"];
invite_manager[label="invite manager"];
acl_manager[label="ACL manager"];
}
{
node[color=darkgreen;fontcolor=darkgreen];
builtin_shell[label="built-in\nconfig shell"];
ssh_proxy[label="SSH proxy\nJump-Host"];
learn_key[label="learn the\npub key"];
}
err_and_exit[label="\nerror\nand exit\n\n";color=red;fontcolor=red];
{ rank=same; ssh_proxy; builtin_shell; learn_key; err_and_exit; }
{ rank=same; known_user_key; unknown_user_key; }
}
subgraph cluster_hosts {
label="your hosts";
graph[fontsize=18;color=gray;fontcolor=black];
node[color=blue;fontcolor=blue];
host_1[label="root@host1"];
host_2[label="user@host2:2222"];
host_3[label="root@host3:1234"];
}
{
edge[color=blue];
start -> known_user_key;
start -> unknown_user_key;
ssh_proxy -> host_1;
ssh_proxy -> host_2;
ssh_proxy -> host_3;
}
{
edge[color=darkgreen;fontcolor=darkgreen];
known_user_key -> builtin_shell[label="user=admin"];
acl_manager -> ssh_proxy[label="authorized"];
invite_manager -> learn_key[label="valid token"];
}
{
edge[color=darkorange;fontcolor=darkorange];
known_user_key -> acl_manager[label="user matches an existing host"];
unknown_user_key -> invite_manager[label="user=invite:<token>";labelloc=b];
}
{
edge[color=red;fontcolor=red];
known_user_key -> err_and_exit[label="invalid user"];
acl_manager -> err_and_exit[label="unauthorized"];
unknown_user_key -> err_and_exit[label="any other user";constraint=false];
invite_manager -> err_and_exit[label="invalid token";constraint=false];
}
}