From 6a73e4120e7d0654b05b82cd819c57e9b57c46e3 Mon Sep 17 00:00:00 2001
From: Kris Lamoureux <kris@lamoureux.io>
Date: Tue, 8 Jun 2021 00:33:55 -0400
Subject: [PATCH] Email rsnapshot backup reports

---
 dev/host_vars/rsnapshot.yml                   | 10 ++++++++++
 roles/base/tasks/mail.yml                     | 19 ++++++++++++++++++
 roles/base/tasks/main.yml                     |  4 ++++
 roles/base/templates/msmtprc.j2               | 17 ++++++++++++++++
 roles/rsnapshot/defaults/main.yml             |  1 +
 roles/rsnapshot/tasks/main.yml                | 20 ++++++++++++++++++-
 .../templates/rsnapshot-report.sh.j2          |  4 ++++
 7 files changed, 74 insertions(+), 1 deletion(-)
 create mode 100644 roles/base/tasks/mail.yml
 create mode 100644 roles/base/templates/msmtprc.j2
 create mode 100644 roles/rsnapshot/templates/rsnapshot-report.sh.j2

diff --git a/dev/host_vars/rsnapshot.yml b/dev/host_vars/rsnapshot.yml
index 5317ecb..89fc4a5 100644
--- a/dev/host_vars/rsnapshot.yml
+++ b/dev/host_vars/rsnapshot.yml
@@ -2,6 +2,13 @@
 allow_reboot: false
 manage_network: false
 
+#mail:
+#  host: smtp.gmail.com
+#  from: automated@example.com
+#  user: automated
+#  password: password123
+#  rootalias: personal@example.com
+
 # rsnapshot
 rsnapshot:
   - name: localhost
@@ -18,6 +25,9 @@ rsnapshot:
         minute: "1-59/2" # every odd minute
         #minute: 0
         #hour: 0
+    #report:
+    #  to: personal@example.com
+    #  subject: Localhost Backup Report
     backups:
       - name: config
         source: /etc/
diff --git a/roles/base/tasks/mail.yml b/roles/base/tasks/mail.yml
new file mode 100644
index 0000000..57c3c16
--- /dev/null
+++ b/roles/base/tasks/mail.yml
@@ -0,0 +1,19 @@
+- name: Install msmtp
+  apt:
+    name: "{{ item }}"
+    state: present
+  loop:
+    - msmtp
+    - msmtp-mta
+    - mailutils
+
+- name: Install msmtp configuration
+  template:
+    src: msmtprc.j2
+    dest: /root/.msmtprc
+    mode: 0700
+
+- name: Install /etc/aliases
+  copy:
+    dest: /etc/aliases
+    content: "root: {{ mail.rootalias }}"
diff --git a/roles/base/tasks/main.yml b/roles/base/tasks/main.yml
index 1df652e..f1cc1f5 100644
--- a/roles/base/tasks/main.yml
+++ b/roles/base/tasks/main.yml
@@ -8,6 +8,10 @@
   tags: network
   when: manage_network
 
+- import_tasks: mail.yml
+  tags: mail
+  when: mail is defined
+
 - import_tasks: ddclient.yml
   tags: ddclient
   when: ddclient is defined
diff --git a/roles/base/templates/msmtprc.j2 b/roles/base/templates/msmtprc.j2
new file mode 100644
index 0000000..f31332a
--- /dev/null
+++ b/roles/base/templates/msmtprc.j2
@@ -0,0 +1,17 @@
+# Set default values for all accounts.
+defaults
+port 587
+tls on
+tls_trust_file /etc/ssl/certs/ca-certificates.crt
+aliases /etc/aliases
+logfile ~/.msmtp.log
+
+account main
+host {{ mail.host }}
+from {{ mail.from }}
+auth on
+user {{ mail.user }}
+password {{ mail.password }}
+
+# Set a default account
+account default : main
diff --git a/roles/rsnapshot/defaults/main.yml b/roles/rsnapshot/defaults/main.yml
index d31cb77..f972bc5 100644
--- a/roles/rsnapshot/defaults/main.yml
+++ b/roles/rsnapshot/defaults/main.yml
@@ -1,3 +1,4 @@
 rsnapshot_confdir: /etc/rsnapshot.d
 rsnapshot_logdir: /var/log/rsnapshot
 rsnapshot_root: /srv/backups/{{ item.name }}
+rsnapshot_reportlog: "{{ rsnapshot_logdir }}/{{ item.name }}.log"
diff --git a/roles/rsnapshot/tasks/main.yml b/roles/rsnapshot/tasks/main.yml
index f8dbd7a..63de8a8 100644
--- a/roles/rsnapshot/tasks/main.yml
+++ b/roles/rsnapshot/tasks/main.yml
@@ -40,7 +40,7 @@
 - name: Install rsnapshot crons
   cron:
     name: "{{ item.1.interval }} rsnapshot of {{ item.0.name }}"
-    job: "/usr/bin/rsnapshot -c {{ rsnapshot_confdir }}/{{ item.0.name }}.conf {{ item.1.interval }}"
+    job: "/usr/bin/rsnapshot -c {{ rsnapshot_confdir }}/{{ item.0.name }}.conf {{ item.1.interval }} >/dev/null"
     user: "root"
     minute: "{{ item.1.minute | default('*') }}"
     hour: "{{ item.1.hour | default('*') }}"
@@ -51,3 +51,21 @@
   with_subelements:
     - "{{ rsnapshot }}"
     - cron
+
+- name: Install rsnapshot report script
+  template:
+    src: rsnapshot-report.sh.j2
+    dest: /usr/local/bin/rsnapshot-report
+    mode: '0750'
+
+- name: Install rsnapshot report crons
+  cron:
+    name: "{{ item.name }} rsnapshot report email"
+    job: "/usr/local/bin/rsnapshot-report {{ rsnapshot_reportlog }}
+          | mail -s '{{ item.report.subject | default('Backup Report') }}' {{ item.report.to }}"
+    user: "root"
+    minute: '0'
+    hour: '0'
+    cron_file: "rsnapshot-{{ item.name }}"
+  loop: "{{ rsnapshot }}"
+  when: item.report is defined
diff --git a/roles/rsnapshot/templates/rsnapshot-report.sh.j2 b/roles/rsnapshot/templates/rsnapshot-report.sh.j2
new file mode 100644
index 0000000..933ab08
--- /dev/null
+++ b/roles/rsnapshot/templates/rsnapshot-report.sh.j2
@@ -0,0 +1,4 @@
+#/bin/bash
+LOG_LOCATION={{ rsnapshot_logdir }}/*.log
+[ $# -gt 0 ] && LOG_LOCATION=$1
+grep -e ^\\[$(date --date="yesterday" '+%F').*\/usr\/bin\/rsnapshot $LOG_LOCATION