ironic: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/ironic - from package: python-ironicclient

You may install the required package with command apt-get install {package}

Error in other languages:
ironic: bevel nie gevind nie
ironic: comandă negăsită
ironic: comando não encontrado
ironic: commande introuvable
ironic: command not found
ironic: käsku ei ole
ironic: không tìm thấy lệnh
ironic: komanda nerasta
ironic: Kommando nicht gefunden.
ironic: kommandot finns inte
ironic: komut yok
ironic: nie znaleziono polecenia
ironic: níor aimsíodh an t-ordú
ironic: no se encontró la orden
ironic: no s'ha trobat l'ordre
ironic: opdracht niet gevonden
ironic: parancs nem található
ironic: perintah tidak ditemukan
ironic: príkaz nenájdený
ironic: příkaz nenalezen
ironic: команда не найдена
ironic: командата не е открита
ironic: 命令找不到
ironic: コマンドが見つかりません