From 9fc3a461cea01332bd801b357a58641182df514e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gardais=20J=C3=A9r=C3=A9my?=
 <jeremy.gardais@univ-rennes1.fr>
Date: Thu, 26 Jul 2018 17:46:10 +0200
Subject: [PATCH] Manage Netdata configuration

---
 CHANGELOG.md                          |  1 +
 README.md                             | 29 ++++++++++++++++++++++++++-
 defaults/main.yml                     | 15 ++++++++++++++
 tasks/main.yml                        | 29 +++++++++++++++++++++++++++
 templates/etc/netdata/netdata.conf.j2 | 21 +++++++++++++++++++
 5 files changed, 94 insertions(+), 1 deletion(-)
 create mode 100644 templates/etc/netdata/netdata.conf.j2

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0624241..09b406a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,3 +4,4 @@
 ### Features
 * Install Netdata.
 * Can choose to install recommends packages.
+* Manage Netdata configuration (/etc).
diff --git a/README.md b/README.md
index 49a46a4..b424230 100644
--- a/README.md
+++ b/README.md
@@ -17,22 +17,49 @@ A role to manage Netdata installation and configuration.
 * **netdata__base_packages** : List of base packages in order to provide Netdata [default : `netdata`].
 * **netdata__install_recommends** : If recommends packages should be install [default : `True`].
 * **netdata__deploy_state** : The desired state this role should achieve. [default : `present`].
+* **netdata__etc_src** : Directory used as source to templating /etc/netdata configuration content [default : `../templates/etc/netdata`].
 
 ## Example Playbook
 
 * Use defaults vars :
 
 ``` yaml
-- hosts: mynode.domain
+- hosts: mynode.DOMAIN
   roles:
     - role: ipr-cnrs.netdata
       tags: ['role::netdata', 'ipr']
 ```
 
+* Use your own Netdata's configuration as source :
+
+``` yml
+- hosts: mynode.DOMAIN
+  roles:
+    - role: ipr-cnrs.netdata
+      netdata__etc_src: '{{ inventory_dir + "/../resources/host/mynode.DOMAIN/etc/netdata/" }}'
+```
+
+  * Ensure your directory contains only templates or sub-directories, such as :
+
+``` sh
+mynode.DOMAIN
+└── etc
+    └── netdata
+        ├── fping.conf.j2
+        ├── health_alarm_notify.conf.j2
+        ├── netdata.conf.j2
+        └── node.d
+            ├── named.conf.md.j2
+            ├── README.md.j2
+            ├── sma_webbox.conf.md.j2
+            └── snmp.conf.md.j2
+```
+
 ## Configuration
 
 This role will :
 * Install needed packages to provide `netdata` service.
+* Manage Netdata configuration (/etc/netdata).
 
 ## Development
 
diff --git a/defaults/main.yml b/defaults/main.yml
index f33fca7..898b59a 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -37,3 +37,18 @@ netdata__install_recommends: True
 netdata__deploy_state: 'present'
                                                                    # ]]]
                                                                    # ]]]
+# Configuration [[[
+# -----------------------------
+
+# .. envvar:: netdata__etc_src [[[.
+# Directory with templates used to provide Netdata configuration (usually in
+# '/etc/netdata').
+#
+# Must be a relative path to default directory of this role
+# or to your ansible inventory directory.
+#
+netdata__etc_src: '../templates/etc/netdata'
+
+                                                                   # ]]]
+
+                                                                   # ]]]
diff --git a/tasks/main.yml b/tasks/main.yml
index 5dc2fc6..8673422 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -13,3 +13,32 @@
     - '{{ netdata__base_packages }}'
 
 
+# Server Manage /etc configuration files [[[1
+- name: Ensure Netdata directory structure exists
+  file:
+    path: '/etc/netdata/{{ item.path }}'
+    state: directory
+    owner: 'root'
+    group: 'netdata'
+    mode: '0755'
+  with_filetree: '{{ netdata__etc_src }}'
+  when: item.state == 'directory'
+
+- name: Generate Netdata configuration files
+  template:
+    src: '{{ item.src }}'
+    dest: "/etc/netdata/{{ item.path | replace('.j2','') }}"
+    owner: 'root'
+    group: 'netdata'
+    mode: '{{ item.mode }}'
+  with_filetree: '{{ netdata__etc_src }}'
+  when: item.state == 'file'
+
+- name: Generate Netdata configuration symlinks
+  template:
+    src: '{{ item.src }}'
+    dest: "/etc/netdata/{{ item.path | replace('.j2','') }}"
+    state: 'link'
+    force: true
+  with_filetree: '{{ netdata__etc_src }}'
+  when: item.state == 'link'
diff --git a/templates/etc/netdata/netdata.conf.j2 b/templates/etc/netdata/netdata.conf.j2
new file mode 100644
index 0000000..7bd0886
--- /dev/null
+++ b/templates/etc/netdata/netdata.conf.j2
@@ -0,0 +1,21 @@
+## {{ ansible_managed }}
+
+# NetData Configuration
+
+# The current full configuration can be retrieved from the running
+# server at the URL
+#
+#   http://localhost:19999/netdata.conf
+#
+# for example:
+#
+#   wget -O /etc/netdata/netdata.conf http://localhost:19999/netdata.conf
+#
+
+[global]
+	run as user = netdata
+	web files owner = root
+	web files group = root
+	# Netdata is not designed to be exposed to potentially hostile
+	# networks.See https://github.com/firehol/netdata/issues/164
+	bind socket to IP = 127.0.0.1