Hello,
I have the following config
admin@ncs% show provisioning base-config | display xpath
/provisioning/base:base-config[zone='AMER']/region/AMER/country/US/dns/name-servers [ 1.1.1.1 1.1.1.2 ]
/provisioning/base:base-config[zone='APAC']/region/APAC/country/SG/dns/name-servers [ 2.2.2.1 2.2.2.2 ]
/provisioning/base:base-config[zone='EMEA']/region/EMEA/country/UK/dns/name-servers [ 3.3.3.1 3.3.3.2 ]
[ok][2020-07-27 12:15:20]
I want to configure a CDB template that selects the right DNS servers based on variables $REGION and $COUNTRY. I tried the following
admin@ncs% show devices template TM-BASE-DNS
config {
junos:configuration {
system {
name-server "{/provisioning/base:base-config[zone=$REGION]/region/node()/country/node()/dns/name-servers}";
}
}
}
[ok][2020-07-27 12:23:59]
admin@ncs% request devices device junos1 apply-template template-name TM-BASE-DNS variable { name REGION value 'AMER' } variable { name COUNTRY value 'US' }
apply-template-result {
device junos1
result ok
}
[ok][2020-07-27 12:15:03]
[edit]
admin@ncs% commit dry-run
cli {
local-node {
data devices {
device junos1 {
config {
junos:configuration {
system {
+ # first
+ name-server 1.1.1.1;
+ name-server 1.1.1.2;
}
}
}
}
}
}
}
[ok][2020-07-27 12:15:05]
This template works but with node() it just selects any random container. Instead, I would like to select the specific container that matches the name $REGION and the country container that matches the name given in $COUNTRY
I have tried the following and multiple combinations of this one using XPATH functions:
admin@ncs% show devices template TM-BASE-DNS
config {
junos:configuration {
system {
name-server "{/provisioning/base:base-config[zone=$REGION]/region/node()/country/contains($current,$REGION)/dns/name-servers}";
}
}
}
[ok][2020-07-27 12:29:34]However it always fails with an XPATH expression error:
admin@ncs% request devices device junos1 apply-template template-name TM-BASE-DNS variable { name REGION value 'AMER' } variable { name COUNTRY value 'US' }
Error: Compilation of XPATH expression '/provisioning/base:base-config[zone=$REGION]/region/node()/country/contains($current,$REGION)/dns/name-servers' at 'devices template TM-BASE-DNS config configuration system name-server "{/provisioning/base:base-config[zone=$REGION]/region/node()/country/contains($current,$REGION)/dns/name-servers}"' failed with result: XPath syntax error
[error][2020-07-27 12:32:01]
Does anyone know how would the XPATH expression works in this case? It works nicely when selecting nodes from a list, but I haven't figured it out for selecting a container...
Thanks
