I used the stat module as suggested by Todd and it worked perfectly. I
appreciate the suggestion and for setting me straight.
Thanks,
Harry
On Thursday, April 25, 2024 at 4:09:28 AM UTC-4 Stuart Lowe wrote:
> Something like this should work?
>
> ---
>
> - hosts: my_hosts
>
> become: true
>
> become_method: sudo
>
> gather_facts: false
>
>
>
> tasks:
>
>
>
> - name: Determine if /var/log/messages is zero-length
>
> ansible.builtin.find:
>
> paths: /var/log
>
> patterns: messages
>
> register: messages_files
>
>
>
> - name: Check if /var/log/messages is zero length
>
> ansible.builtin.stat:
>
> path: "{{ item.path }}"
>
> register: file_details
>
> with_items: "{{ messages_files.files }}"
>
> when: messages_files.matched > 0
>
>
>
> - name: Restart rsyslog service if /var/log/messages is zero length
>
> ansible.builtin.systemd:
>
> name: rsyslog
>
> state: restarted
>
> when: item.stat.exists and item.stat.size == 0
>
> with_items: "{{ file_details.results }}"
>
>
>
> *From:* [email protected] <[email protected]> *On
> Behalf Of *[email protected]
> *Sent:* Wednesday, April 24, 2024 8:27 PM
> *To:* Ansible Project <[email protected]>
> *Subject:* [ansible-project] Getting hostnames from a fact
>
>
>
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> important <https://aka.ms/LearnAboutSenderIdentification>
>
>
>
> *Caution:* This email originated from outside of the organisation. Do not
> click links or open attachments unless you recognise the sender and know
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>
>
> I have a playbook I'm developing where I'm trying to find any server that
> has a 0 length /var/log/messages files. When I find those, I want to
> restart the rsyslog service on those. So right now I'm setting this fact
> as follows:
>
>
>
> ---
> - hosts: my_hosts
> become: true
> become_method: sudo
> gather_facts: false
>
> tasks:
>
> - name: Determine if /var/log/messages is zero-length
> ansible.builtin.find:
> paths: /var/log
> patterns: messages
> register: messages_files
>
> - name: Set fact for all servers that have zero-length /var/log/messages
> ansible.builtin.set_fact:
> zero: "{{ messages_files.files | selectattr('size', '==', 0) }}"
>
> - name: Print results
> ansible.builtin.debug:
> msg: "{{ zero }}"
>
>
>
> When the debug print happens, I get all servers printing out either the
> file attributes, or an empty string:
>
>
>
> ok: [server1] => {
> "msg": [
> {
> "atime": 1713683723.242925,
> "ctime": 1713683723.242925,
> "dev": 64777,
> "gid": 10,
> "gr_name": "wheel",
> "inode": 8212,
> "isblk": false,
> "ischr": false,
> "isdir": false,
> "isfifo": false,
> "isgid": false,
> "islnk": false,
> "isreg": true,
> "issock": false,
> "isuid": false,
> "mode": "0640",
> "mtime": 1713683723.242925,
> "nlink": 1,
> "path": "/var/log/messages",
> "pw_name": "root",
> "rgrp": true,
> "roth": false,
> "rusr": true,
> "size": 0,
> "uid": 0,
> "wgrp": false,
> "woth": false,
> "wusr": true,
> "xgrp": false,
> "xoth": false,
> "xusr": false
> }
> ]
> }
> ok: [server2] => {
> "msg": []
> }
>
>
>
> So, 2 questions:
>
> 1) How can I NOT print what server2 is printing/showing?
>
> 2) Once I fix #1, how can I get just the hostnames of those servers where
> the size of the file is 0, then start another play to restart rsyslog on
> only those?
>
>
>
> Thanks,
>
> Harry
>
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>
> ---------------
>
> *Stuart Lowe* He/Him
> Zen Cloud Engineering - Team Leader
> *Zen Internet*
> www.zen.co.uk
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