Below is my playbook that constructs a string.
- name: Construct command for all paths on a particular IP
set_fact:
allcmd: "{{ allcmd | default('') + '\"ls -lrt ' + item.path + ' | tail -57 &&' }}"
loop: "{{ user1[inventory_hostname] }}"
- debug:
msg: "allcmd is:{{ allcmd }}"
Output:
ok: [10.9.9.11] => (item={u'path': u'/tmp/scripts', u'name': u'SCRIPT'}) => {
"ansible_facts": {
"allcmd": "ls -lrt /tmp/scripts | tail -57 &&"
},
"ansible_loop_var": "item",
"changed": false,
"item": {
"name": "SCRIPT",
"path": "/tmp/scripts"
}
}
ok: [10.9.9.11] => (item={u'path': u'/tmp/MON', u'name': u'MON'}) => {
"ansible_facts": {
"allcmd": " ls -lrt /tmp/scripts | tail -57 && ls -lrt /tmp/MON | tail -57 &&"
},
"ansible_loop_var": "item",
"changed": false,
"item": {
"name": "MON",
"path": "/tmp/MON"
}
}
After the loop completes I get the desired string except the fact that I'm left with the trailing &&
at the end i.e "allcmd": " ls -lrt /tmp/scripts | tail -57 && ls -lrt /tmp/MON | tail -57 &&"
.
I wish to remove the last 3 charecters i.e &&
from allcmd variable. Desired output:
"allcmd": " ls -lrt /tmp/scripts | tail -57 && ls -lrt /tmp/MON | tail -57"
Could not find any filters or fuction to remove last n charecters in ansible.
Can you please suggest ?
- hosts: localhost
vars:
foo:
- {"name": "SCRIPT", "path": "/tmp/scripts"}
- {"name": "MON", "path": "/tmp/MON"}
tasks:
- debug:
var: foo
- set_fact:
cmds: "{{ [ 'ls -lrt ' + item.path + ' | tail -57' ] + cmds | default([]) }}"
loop: "{{ foo }}"
- set_fact:
allcmd: "{{ cmds | join(' && ')}}"
- debug:
var: allcmd
output:
ok: [localhost] => {
"allcmd": "ls -lrt /tmp/MON | tail -57 && ls -lrt /tmp/scripts | tail -57"
}