nxos_config does not allow block replace when providing src rather than lines

[mjhorndotnet]

SUMMARY

When using the nxos_config module and providing the desired config via a template passed to the src argument, any differences are replaced line by line. Trying to set replace=block throws the following error:

msg: 'replace is block but all of the following are missing: lines'

This can cause issues such as in my use case of managing route-maps. The template generates a route-map configuration. If existing config does not match, I need to first remove the existing configuration, before attempting to apply the new config. Otherwise the net result can be unpredictable as the route-map configs are not atomic.

ISSUE TYPE

• Bug Report

COMPONENT NAME

nxos_config module

ANSIBLE VERSION

  config file = /etc/ansible/ansible.cfg
  configured module search path = [u'/home/mhorn/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python2.7/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 2.7.15rc1 (default, Apr 15 2018, 21:51:34) [GCC 7.3.0]

CONFIGURATION

OS / ENVIRONMENT

Behavior appears independent of nxos version, have tested against 6.x 7.x and 9.x

STEPS TO REPRODUCE

route-map.j2

route-map test permit 10
  description "First Sequence"
route-map test permit 20
  description "second sequence"

test.yml

---
- hosts: lab1-n-excsw01
  gather_facts: no
  tasks:
    - name: Apply route-map
      nxos_config:
        src: route-map.j2
        before: "no route-map test"
        replace: block
        save_when: changed
        diff_against: running

EXPECTED RESULTS

If the running config matches, no changes are made. If it does not match, the 'before' parameter of 'no route-map test' is run, and then all lines of the the src template are configured

ACTUAL RESULTS

Run as above, the following error is thrown:
msg: 'replace is block but all of the following are missing: lines'

Run without 'replace=block', results are not consistent. For example, running the above when only the first sequence exists first removes the route-map, but then only applies the missing second sequence. Repeated runs will oscillate between one section of the config or the other being applied, but never the desired config in it's entirety.

root@localhost:/etc/ansible$ ansible-playbook -i inventory/lab test.yml --diff

PLAY [lab1-n-excsw01] ****************************************************************************************************************************************

TASK [Apply route-map] ***************************************************************************************************************************************
--- before
+++ after
@@ -80,8 +80,8 @@
-route-map test permit 10
-  description "First Sequence"
+route-map test permit 20
+  description "second sequence"

changed: [lab1-n-excsw01]

PLAY RECAP ***************************************************************************************************************************************************
lab1-n-excsw01             : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

root@localhost:/etc/ansible$ ansible-playbook -i inventory/lab test.yml --diff

PLAY [lab1-n-excsw01] ****************************************************************************************************************************************

TASK [Apply route-map] ***************************************************************************************************************************************
--- before
+++ after
@@ -80,8 +80,8 @@
-route-map test permit 20
-  description "second sequence"
+route-map test permit 10
+  description "First Sequence"

changed: [lab1-n-excsw01]

PLAY RECAP ***************************************************************************************************************************************************
lab1-n-excsw01             : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

root@localhost:/etc/ansible$ ansible-playbook -i inventory/lab test.yml --diff

PLAY [lab1-n-excsw01] ****************************************************************************************************************************************

TASK [Apply route-map] ***************************************************************************************************************************************
--- before
+++ after
@@ -80,8 +80,8 @@
-route-map test permit 10
-  description "First Sequence"
+route-map test permit 20
+  description "second sequence"

changed: [lab1-n-excsw01]

PLAY RECAP ***************************************************************************************************************************************************
lab1-n-excsw01             : ok=1    changed=1    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0

[i-m-d]

Hello,

Is this problem resolved ?
if yes, in which version ?
if not, when will be avaible ?

Thank you.