On Sunday, November 4, 2018 at 10:03:49 AM UTC-5, Uwe Sauter wrote:
>
> OK, more comments:
>
> >
> > So I've modified the first main.yml as follows:
> >
> > |
> > # cat main.yml
> > ---
> >
> >
> > -name:Gatherall facts prior to execution
> > hosts:mysql
> > gather_facts:false
>
> Not gathering facts here will lead you to miss many of the ansible_*
> variables.
>
> > tasks:
> > -name:Dumpansible_default_ipv4 variable output
> > copy:
>
> The result of the copy module can be found on the target host(s), not on
> the host running the playbook. But in this case
> it should already fail as you don't gather facts and thus miss
> ansible_default_ipv4.
>
> Try the following:
>
>
>
> #### test.yaml ####
> ---
> - name: test templating
> hosts: mysql
> gather_facts: true
> tasks:
> - debug: msg='{{ inventory_hostname }} has default IP {{
> ansible_default_ipv4["address"] }}
> - template:
> src: test.j2
> dest: /tmp/test.out
>
> #### end test.yaml ####
>
> #### test.j2 ####
> # {{ ansible_managed }}
> My default IPv4 address is: {{ ansible_default_ipv4["address"] }}
>
> My other hostvars are:
> {{ hostvars[inventory_hostname] | to_nice_yaml }}
> #### end test.j2 ####
>
> You should get a debug output for each of your hosts and there should be a
> /tmp/test.out on each of your hosts from the
> mysql group.
>
>
[root@awx02 mysql]# pwd
/ansible/roles/mysql
[root@awx02 mysql]# cat templates/test.j2
# {{ ansible_managed }}
My default IPv4 address is: {{ ansible_default_ipv4["address"] }}
My other hostvars are:
{{ hostvars[inventory_hostname] | to_nice_yaml }}
[root@awx02 mysql]#
[root@awx01 ansible]# pwd
/ansible
[root@awx01 ansible]# cat main.yml
---
- name: Gather all facts prior to execution
hosts: mysql
gather_facts: true
tasks:
- debug: msg='{{ inventory_hostname }} has default IP {{
ansible_default_ipv4["address"] }}'
- template:
src: test.j2
dest: /tmp/test.out
- name: Install and configure MySQL
hosts: mysql
sudo: yes
roles:
- mysql
tags: mysql
[root@awx01 ansible]#
[root@mysql04 tmp]# ls -altri /tmp/test*
ls: cannot access /tmp/test*: No such file or directory
[root@mysql04 tmp]#
[root@awx01 ansible]# ls -altri /tmp/test*
ls: cannot access /tmp/test*: No such file or directory
[root@awx01 ansible]#
Don't think I got it right on though because it printed nothing:
PLAY [Gather all facts prior to execution]
****************************************************************************************************************
TASK [Gathering Facts]
************************************************************************************************************************************
task path: /ansible/main.yml:2
>
>
> > dest:/tmp/ansible_default_ipv4.yaml
> > content:'{{ ansible_default_ipv4 | to_nice_yaml }}'
> > -fail:
> >
> >
> > -name:Installandconfigure MySQL
> > hosts:mysql
> > sudo:yes
> > roles:
> > -mysql
> > tags:mysql
> >
> > |
> >
> > But couldn't find anything printed into /tmp/ansible_default_ipv4.yaml
> anywhere. ( Now I could have mocked it up given
> > how green I am with this. )
> >
> > However, I've also done this:
> >
> > |
> > # cat tasks/variables.yml
> > ---
> >
> >
> > -name:IncludeOS-specific variables (RedHat).
> > include_vars:"{{ ansible_os_family }}-{{
> ansible_distribution_major_version }}.yml"
> > when:ansible_os_family =="RedHat"
> >
> >
> > -name:Definemysql_config_file variable .
> > set_fact:
> > mysql_config_file:"{{ __mysql_config_file }}"
> > when:mysql_config_file isnotdefined
> >
> >
> > -debug:
> > msg:"var = {{ ansible_default_ipv4.address }}"
> > when:ansible_default_ipv4.address isdefined
> >
> >
> > -name:Definethe mysql_ipv4 variable
> > set_fact:
> > mysql_ipv4:"{{ ansible_default_ipv4.address }}"
> > when:mysql_ipv4 isnotdefined
> >
> >
> > -name:Printall variables foreach remote device
> > debug:
> > var:hostvars[inventory_hostname]
> >
> > |
> >
> > which printed this output (snippet only):
> >
> > |
> > TASK [mysql :Printall variables foreach remote
> >
> device]*************************************************************************************************
>
>
> > task path:/ansible/roles/mysql/tasks/variables.yml:21
> > ok:[mysql04]=>{
> > "hostvars[inventory_hostname]":{
> > "__mysql_config_file":"/etc/my.cnf",
> > "ansible_all_ipv4_addresses":[
> > "192.168.0.109"
> > ],
> > "ansible_all_ipv6_addresses":[
> > "fe80::250:56ff:fe86:e11b"
> > ],
> > "ansible_apparmor":{
> > "status":"disabled"
> > },
> > "ansible_architecture":"x86_64",
> > "ansible_bios_date":"04/14/2014",
> > "ansible_bios_version":"6.00",
> > "ansible_check_mode":true,
> > "ansible_cmdline":{
> > "BOOT_IMAGE":"/vmlinuz-3.10.0-693.21.1.el7.x86_64",
> > "LANG":"en_US.UTF-8",
> > "biosdevname":"0",
> > "crashkernel":"auto",
> > "net.ifnames":"0",
> > "quiet":true,
> > "rd.lvm.lv":"centos/swap",
> > "rhgb":true,
> > "ro":true,
> > "root":"/dev/mapper/centos-root"
> > },
> > "ansible_date_time":{
> > "date":"2018-11-04",
> > "day":"04",
> > "epoch":"1541340261",
> > "hour":"09",
> > "iso8601":"2018-11-04T14:04:21Z",
> > "iso8601_basic":"20181104T090421500144",
> > "iso8601_basic_short":"20181104T090421",
> > "iso8601_micro":"2018-11-04T14:04:21.500460Z",
> > "minute":"04",
> > "month":"11",
> > "second":"21",
> > "time":"09:04:21",
> > "tz":"EST",
> > "tz_offset":"-0500",
> > "weekday":"Sunday",
> > "weekday_number":"0",
> > "weeknumber":"44",
> > "year":"2018"
> > },
> > "ansible_default_ipv4":{
> > "address":"192.168.0.109",
> > "alias":"eth0",
> > "broadcast":"192.168.0.255",
> > "gateway":"192.168.0.1",
> > "interface":"eth0",
> > "macaddress":"00:50:56:86:e1:1b",
> > "mtu":1500,
> > "netmask":"255.255.255.0",
> > "network":"192.168.0.0",
> > "type":"ether"
> > },
> >
> >
> >
> > |
> >
> >
> >
> > With this you'll be able to analyze the structure and see if the
> attribute / key is actually set for which your
> > playbook
> > or template is looking.
> >
> >
> > Regards,
> >
> > Uwe
> >
> >
> > >
> > >
> > > There's a variables.yml file as well but that just defines
> mysql_config_file . Let me know if you need to see it.
> > >
> > > Cheers,
> > > TK
> > >
> > > --
> >
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