What config file template variables are available? (Secure Provisioning)

As well as static files, you may create templated ZTP configuration or script files. This is useful if your file needs to reference site-specific values such as an assigned IP addresses.

Any file uploaded via the web UI, or into the downloads directly with a file suffix of .j2 (Jinja2) are automatically templated.

For example, a basic Cumulus templated provisioning script may look like:

cumulus_setup.sh.j2

#!/bin/bash
curl tftp://{{ nom_remote_server }}/cumulus_interfaces > /etc/network/interfaces

Note that the .j2 suffix is stripped when serving templated files to devices.

Template variables

{{ nom_remote_server }}

• Address of provisioning interface on Operations Manager
• Example: 10.0.0.1

{{ nom_remote_interface }}

• Name of provisioning interface on Operations Manager
• Example: net2

{{ nom_remote_netmask }}

• Netmask of provisioning interface on Operations Manager (and netmask assigned in DHCP offers)
• Example: 255.255.255.0

{{ nom_remote_netmask_cidr }}

• CIDR format netmask (prefix length) of provisioning interface on Operations Manager
• Example: 24

{{ nom_remote_ntp_server }}

• Address of NTP server assigned in DHCP offers (same as nom_remote_server)
• Example: 10.0.0.1

{{ nom_remote_dns_server }}

• Address of DNS server assigned in DHCP offers (same as nom_remote_server)
• Example: 10.0.0.1

{{ nom_device_ipv4_address }}

• DHCP address assigned to target device
• Example: 10.0.0.13

{{ nom_remote_ssh_pub_key }}

• Public part of an auto-generated SSH keypair on the remote node, which may be injected into device config to pre-authenticate the node for any post-provisioning activities
• Example: ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDHO50MVT4A9Nl7vjDlS+76LgDBtEDm+J1gaQPNiIV62CGA6cm5wASDiddY/KZkHAKOtH8Oxyv6o1dLqi0ztYI2xAjp0fEDFoo5m0ESJISfXaEIGXzebuNvijcW3cpfbd0oYO0SfRu/mRN5Ob5W2YOCzypzO+HpD9y3f0JNff6BGXGL3EfcPAKeuDoVRatXiuuyYfm6pq7Zli5NsNXjaF+9ncoYo2atLCY0YtO/E1uiDFQnkR0WDe6rfugh7ZGiyRxuOEOdxI6m1hZwcR6HwcchQf0VZwYNZlOtDGi5rm22528vFQPLDMLUDjkCji953sD+bFsikuDLCF0SoiEU4PAT [e-mail]

{{ nom_device_hostname }}

• Hostname advertised by target device
• Example: router

{{ nom_device_mac_address }}

• MAC Address of target device
• Example: 00:12:34:56:78:9A