Hello the list,
I have a bunch of machines with some shared file systems. Some of the file
systems are not mounted on all the machines. For the filesystems that are
mounted, I'd like to check/create a bunch of symbolic links to those
filesystems from various places in the filesystem. Some filesystems do not
have links (yet) but we may do some other things with them later.
So given a YAML inventory file:
all:
vars:
filesystems:
/sharedfs1:
- source: /sharedfs1/filesets/home
target: /home
- source: /sharedfs1/filesets/foo
target: /opt/foo
- source: /sharedfs1/filesets/baa
target: /opt/baa
- source: /sharedfs1/filesets/lmod
target: /opt/lmod
- source: /scale_wlg_persistent/filesets/baz
target: /quack/baz
/sharedfs2:
- source: /sharedfs2/filesets/scratch
target: /quack/scratch
/sharedfs3:
/sharedfs4:
children:
hostlist:
hosts:
host1:
host2:
And the following play, which checks the mount point exists
---
- name: Create links to filesets from shared filesystems
hosts: all
tasks:
- name: Check filesystems are mounted
stat:
path: "{{ item.key }}"
register: fsstat
loop: "{{ filesystems|dict2items }}"
- name: Which filesystem mount exists?
debug:
var: fsstat.stat.path
when: item.0.stat.path == item.1.key
loop: "{{ fsstat.results|product(filesystems|dict2items)|list }}"
Now what I want to do for each filesystem mount that exists, I'd like to
create a link from source to target for each list of link hashes associated
with each filesystem. Doing this in Python is almost trivial, but a massive
pain in Ansible/Jinja2
Regards,
Aaron
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