From c2b060df9e281f70dcbd7042652542574e88000d Mon Sep 17 00:00:00 2001
From: Felix Stupp <felix.stupp@outlook.com>
Date: Fri, 9 Aug 2019 15:22:09 +0200
Subject: [PATCH] common: Added support for backup databases

---
 roles/common/files/backup_rename.sh       |  9 +++++++++
 roles/common/tasks/helpers.yml            | 11 +++++++++++
 roles/common/tasks/main.yml               | 11 +++++++++++
 roles/common/tasks/packages.yml           |  1 +
 roles/common/templates/backup_database.sh |  9 +++++++++
 5 files changed, 41 insertions(+)
 create mode 100644 roles/common/files/backup_rename.sh
 create mode 100644 roles/common/templates/backup_database.sh

diff --git a/roles/common/files/backup_rename.sh b/roles/common/files/backup_rename.sh
new file mode 100644
index 0000000..caf237e
--- /dev/null
+++ b/roles/common/files/backup_rename.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e;
+
+dir=$(dirname "$1");
+date=$(date +%Y-%m-%d-%H-%M);
+name=$(basename "$1");
+
+mv "$1" "$dir/$date-$name";
diff --git a/roles/common/tasks/helpers.yml b/roles/common/tasks/helpers.yml
index 97eb84f..17bd80e 100644
--- a/roles/common/tasks/helpers.yml
+++ b/roles/common/tasks/helpers.yml
@@ -16,4 +16,15 @@
     group: root
     mode: "u=rwx,g=rx,o=rx"
   loop:
+    - backup_rename.sh
     - gpg_import_url_key.sh
+
+- name: Build and upload template helper scripts
+  template:
+    src: "{{ item }}"
+    dest: "{{ global_helper_directory }}/{{ item }}"
+    owner: root
+    group: root
+    mode: "u=rwx,g=rx,o=rx"
+  loop:
+    - backup_database.sh
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 0342d0c..14585b6 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -39,3 +39,14 @@
     owner: root
     group: root
     mode: "u=rwx,g=rx"
+
+- name: Create backups directories
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: root
+    group: root
+    mode: "u=rwx,g=rx,o=rx"
+  loop:
+    - "{{ backups_directory }}"
+    - "{{ backups_databases_directory }}"
diff --git a/roles/common/tasks/packages.yml b/roles/common/tasks/packages.yml
index 983c765..125296d 100644
--- a/roles/common/tasks/packages.yml
+++ b/roles/common/tasks/packages.yml
@@ -5,6 +5,7 @@
     name:
       - acl
       - apt-transport-https
+      - buffer
       - ca-certificates
       - cron
       - curl
diff --git a/roles/common/templates/backup_database.sh b/roles/common/templates/backup_database.sh
new file mode 100644
index 0000000..1ed814c
--- /dev/null
+++ b/roles/common/templates/backup_database.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+file={{ backups_databases_directory | quote }}"/$1.sql.gpg";
+
+mysqldump --opt --databases "$1" | buffer -m 128M -s 128K | gpg --quiet --no-verbose --encrypt --recipient 73D09948B2392D688A45DC8393E1BD26F6B02FB7 --trust-model always > "$file";
+chmod u+r-wx,g+r-wx,o+r-wx "$file";
+{{ global_helper_directory | quote }}/backup_rename.sh "$file";