Host jumphost
    HostName 141.19.143.144
    User lennart
    IdentityFile ~/.ssh/id_ed25519
    IdentitiesOnly yes

Host node1
    HostName 10.0.104.1
    User root
    ProxyJump jumphost
    IdentitiesOnly yes

Host node2
    HostName 10.0.104.2
    User root
    ProxyJump jumphost
    IdentitiesOnly yes

Host node3
    HostName 10.0.104.3
    User root
    ProxyJump jumphost
    IdentitiesOnly yes

Host fcos-1
    HostName 10.0.104.20
    User core
    ProxyJump jumphost