As far as I can tell there is no such loop in the template:
[root@awx02 mysql]# cat templates/my.cnf.j2
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
binlog_format=ROW
bind-address="{{ ansible_default_ipv4.address }}"
default_storage_engine=innodb
innodb_autoinc_lock_mode=2
innodb_flush_log_at_trx_commit=0
innodb_buffer_pool_size=122M
wsrep_provider=/usr/lib64/galera-3/libgalera_smm.so
wsrep_provider_options="gcache.size=300M; gcache.page_size=300M"
wsrep_cluster_name="galera_cluster1"
wsrep_cluster_address="gcomm://{% for host in
groups['mysql']%}{{hostvars[host]['ansible_default_ipv4']['address']}}{%
if not loop.last %},{% endif %}{% endfor %}"
wsrep_sst_method=rsync
server_id=1
wsrep_node_address="{{ ansible_default_ipv4.address }}"
wsrep_node_name="{{ ansible_hostname }}"
[mysql_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
>From which message did you get that loop in the template?
Am 05.11.18 um 15:51 schrieb Kai Stian Olstad:
> On Monday, 5 November 2018 15:38:51 CET Uwe Sauter wrote:
>> Sure, but the template will only be used for the one host and as such should
>> not look for variables of other hosts, right?
>
> It will look up the variable on all host in group mysql
>
> This is the code in the template
>
> {% for host in groups['mysql']%}
> {{hostvars[host]['ansible_default_ipv4']['address']}}{% if not loop.last
> %},{% endif %}
> {% endfor %}
>
> In the inventory he has
> [mysql]
> mysql01
> mysql02
> mysql03
> mysql04
>
> In the first iteration host = mysql01 so he is running
> {{ hostvars['mysql01']['ansible_default_ipv4']['address'] }}
>
> But since gather fact has not been run this will get you the error undefined
> variable.
>
>
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