From 82d27fabc7becba1d1ee7c24b331522f2330cae6 Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Sun, 22 May 2016 17:00:58 +0200
Subject: Tunnel munin-update traffic through IPSec.

---
 roles/munin-master/handlers/main.yml               |  3 -
 roles/munin-master/tasks/main.yml                  | 29 ----------
 .../munin-master/templates/etc/munin/munin.conf.j2 | 10 +---
 .../templates/etc/stunnel/munin-master.conf.j2     | 65 ----------------------
 4 files changed, 1 insertion(+), 106 deletions(-)
 delete mode 100644 roles/munin-master/templates/etc/stunnel/munin-master.conf.j2

(limited to 'roles/munin-master')

diff --git a/roles/munin-master/handlers/main.yml b/roles/munin-master/handlers/main.yml
index f65376c..518a875 100644
--- a/roles/munin-master/handlers/main.yml
+++ b/roles/munin-master/handlers/main.yml
@@ -19,6 +19,3 @@
 
 - name: Restart Nginx
   service: name=nginx state=restarted
-
-- name: Restart stunnel@munin-master
-  service: name=stunnel4@munin-master state=restarted
diff --git a/roles/munin-master/tasks/main.yml b/roles/munin-master/tasks/main.yml
index 1580197..64e697e 100644
--- a/roles/munin-master/tasks/main.yml
+++ b/roles/munin-master/tasks/main.yml
@@ -95,35 +95,6 @@
 - meta: flush_handlers
 
 
-- name: Copy munin-node X.509 certificates
-  copy: src=certs/munin/{{ item }}.pem
-        dest=/etc/stunnel/certs/munin-{{ hostvars[item].inventory_hostname_short }}.pem
-        owner=root group=root
-        mode=0644
-  with_items: "{{ groups.all | difference([inventory_hostname]) }}"
-  register: r1
-  notify:
-    - Restart stunnel@munin-master
-
-- name: Configure stunnel
-  template: src=etc/stunnel/munin-master.conf.j2
-            dest=/etc/stunnel/munin-master.conf
-            owner=root group=root
-            mode=0644
-  register: r2
-  notify:
-    - Restart stunnel@munin-master
-
-- name: Enable stunnel@munin-master
-  service: name=stunnel4@munin-master enabled=yes
-
-- name: Start stunnel@munin-master
-  service: name=stunnel4@munin-master state=started
-  when: not (r1.changed or r2.changed)
-
-- meta: flush_handlers
-
-
 - name: Install 'munin_stats' and 'munin_update' plugins
   file: src=/usr/share/munin/plugins/{{ item }}
         dest=/etc/munin/plugins/{{ item }}
diff --git a/roles/munin-master/templates/etc/munin/munin.conf.j2 b/roles/munin-master/templates/etc/munin/munin.conf.j2
index 8273a83..401094a 100644
--- a/roles/munin-master/templates/etc/munin/munin.conf.j2
+++ b/roles/munin-master/templates/etc/munin/munin.conf.j2
@@ -93,17 +93,9 @@ contact.admin.command mail -s "Munin notification" admin@fripost.org
 # the services must be defined in the Nagios server as well.
 #contact.nagios.command /usr/bin/send_nsca nagios.host.comm -c /etc/nsca.conf
 
-local_address 127.0.0.1
-
-{% set n = 0 %}
 {% for node in groups.all | sort %}
-{% set n = n + 1 %}
 [all;{{ hostvars[node].inventory_hostname_short }}]
-{% if node == inventory_hostname %}
-    address 127.0.0.1
-{% else %}
-    address 127.0.{{ n }}.1
-{% endif %}
+    address {{ ipsec[ hostvars[node].inventory_hostname_short ] }}
     port 4994
 
 {% for g in hostvars[node].group_names | sort %}
diff --git a/roles/munin-master/templates/etc/stunnel/munin-master.conf.j2 b/roles/munin-master/templates/etc/stunnel/munin-master.conf.j2
deleted file mode 100644
index ffc7d0d..0000000
--- a/roles/munin-master/templates/etc/stunnel/munin-master.conf.j2
+++ /dev/null
@@ -1,65 +0,0 @@
-; **************************************************************************
-; * Global options                                                         *
-; **************************************************************************
-
-; setuid()/setgid() to the specified user/group in daemon mode
-setuid = stunnel4
-setgid = stunnel4
-
-; PID is created inside the chroot jail
-pid =
-foreground = yes
-
-; Only log messages at severity warning (4) and higher
-debug = 4
-
-; **************************************************************************
-; * Service defaults may also be specified in individual service sections  *
-; **************************************************************************
-
-; Certificate/key is needed in server mode and optional in client mode
-cert = /etc/stunnel/certs/munin-{{ inventory_hostname_short }}.pem
-key  = /etc/stunnel/certs/munin-{{ inventory_hostname_short }}.key
-client = yes
-socket = a:SO_BINDTODEVICE=lo
-
-; Some performance tunings
-socket = l:TCP_NODELAY=1
-socket = r:TCP_NODELAY=1
-
-; Prevent MITM attacks
-verify = 4
-
-; Disable support for insecure protocols
-options = NO_SSLv2
-options = NO_SSLv3
-options = NO_TLSv1
-options = NO_TLSv1.1
-
-options = NO_COMPRESSION
-
-; These options provide additional security at some performance degradation
-options = SINGLE_ECDH_USE
-options = SINGLE_DH_USE
-
-; Select permitted SSL ciphers
-ciphers = EECDH+AESGCM:!MEDIUM:!LOW:!EXP:!aNULL:!eNULL
-
-; **************************************************************************
-; * Service definitions (remove all services for inetd mode)               *
-; **************************************************************************
-
-{% set n = 0 %}
-{% for node in groups.all | sort %}
-{% set n = n + 1 %}
-{% if node != inventory_hostname %}
-[{{ hostvars[node].inventory_hostname_short }}]
-accept  = 127.0.{{ n }}.1:4994
-connect = {{ node }}:4949
-delay   = yes
-CAfile  = /etc/stunnel/certs/munin-{{ hostvars[node].inventory_hostname_short }}.pem
-{% endif %}
-
-{% endfor %}
-
-; vim:ft=dosini
-- 
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