tr/-/_/ in group names.

This avoids

[DEPRECATION WARNING]: The TRANSFORM_INVALID_GROUP_CHARS settings is set
to allow bad characters in group names by default, this will change, but
still be user configurable on deprecation. This feature will be removed
in version 2.10. Deprecation warnings can be disabled by setting
deprecation_warnings=False in ansible.cfg.
[WARNING]: Invalid characters were found in group names but not
replaced, use -vvvv to see details

1 files changed, 1 insertions, 1 deletions

diff --git a/roles/common/templates/etc/munin/munin-node.conf.j2 b/roles/common/templates/etc/munin/munin-node.conf.j2
index d0004b7..1563526 100644
--- a/roles/common/templates/etc/munin/munin-node.conf.j2
+++ b/roles/common/templates/etc/munin/munin-node.conf.j2
@@ -24,29 +24,29 @@ group root
 
 # Regexps for files to ignore
 ignore_file [\#~]$
 ignore_file DEADJOE$
 ignore_file \.bak$
 ignore_file %$
 ignore_file \.dpkg-(tmp|new|old|dist)$
 ignore_file \.rpm(save|new)$
 ignore_file \.pod$
 
 # Set this if the client doesn't report the correct hostname when
 # telnetting to {{ ipsec[inventory_hostname_short] }}, port 4949
 #
 host_name {{ inventory_hostname_short }}
 
 # A list of addresses that are allowed to connect.  This must be a
 # regular expression, since Net::Server does not understand CIDR-style
 # network notation unless the perl module Net::CIDR is installed.  You
 # may repeat the allow line as many times as you'd like
 
-{% for host in groups['munin-master'] %}
+{% for host in groups['munin_master'] %}
 allow ^{{ ipsec[ hostvars[host].inventory_hostname_short ] | ipv4 | replace(".","\.") }}$
 {% endfor %}
 
 # Which address to bind to;
 host {{ ipsec[inventory_hostname_short] }}
 
 # And which port
 port 4994