From 86ab23bd071a4225aade9c6e697ae8d5761ddd61 Mon Sep 17 00:00:00 2001
From: Salt <rehashedsalt@cock.li>
Date: Sun, 3 May 2020 03:06:16 -0500
Subject: [PATCH] Add an untested barebones backup script wrapper

---
 roles/backups/defaults/main.yml   |  5 ++++
 roles/backups/tasks/main.yml      | 26 +++++++++++++++++++
 roles/backups/templates/backup.sh | 43 +++++++++++++++++++++++++++++++
 3 files changed, 74 insertions(+)
 create mode 100644 roles/backups/defaults/main.yml
 create mode 100644 roles/backups/tasks/main.yml
 create mode 100644 roles/backups/templates/backup.sh

diff --git a/roles/backups/defaults/main.yml b/roles/backups/defaults/main.yml
new file mode 100644
index 0000000..fce5a00
--- /dev/null
+++ b/roles/backups/defaults/main.yml
@@ -0,0 +1,5 @@
+# vim:ft=ansible:
+backups_dir: "/opt/backups"
+backups_outdir: "/backups"
+backups_modulesdir: "/opt/backups/modules"
+backups_script: "/opt/backups/backup.sh"
diff --git a/roles/backups/tasks/main.yml b/roles/backups/tasks/main.yml
new file mode 100644
index 0000000..e08e45f
--- /dev/null
+++ b/roles/backups/tasks/main.yml
@@ -0,0 +1,26 @@
+#!/usr/bin/ansible-playbook
+# vim:ft=ansible:
+---
+- name: Set up general backups
+  block:
+    - name: Create backups directories
+      file:
+        state: directory
+        mode: "0700"
+        path: "{{ item }}"
+      loop:
+        - "{{ backups_dir }}"
+        - "{{ backups_outdir }}"
+        - "{{ backups_modulesdir }}"
+    - name: Template out backup script
+      template:
+        src: "backup.sh"
+        dest: "{{ backups_script }}"
+        mode: "0700"
+    - name: Set backup cronjob
+      cron:
+        minute: "0"
+        hour: "2"
+        name: ansible-backup
+        job: "{{ backups_script }}"
+  become: yes
diff --git a/roles/backups/templates/backup.sh b/roles/backups/templates/backup.sh
new file mode 100644
index 0000000..4f5d5b9
--- /dev/null
+++ b/roles/backups/templates/backup.sh
@@ -0,0 +1,43 @@
+#! /bin/bash
+#
+# backup.sh
+# General-purpose backup script that accepts subtasks
+# Copyright (C) 2020 Vintage Salt <rehashedsalt@cock.li>
+#
+# Distributed under terms of the MIT license.
+#
+
+set -e
+
+export BACKUPSDIR="{{ backups_outdir }}"
+export MODULESDIR="{{ backups_modulesdir }}"
+export DATE="$(date -Iseconds)"
+
+# Helper functions
+log() {
+	[ -z "$1" ] && return 1
+	printf "$(date -Iseconds): $1\n"
+}
+
+# Do the do
+if ! [ -d "$BACKUPSDIR" ]; then
+	log "Unable to find backups directory: $BACKUPSDIR"
+	exit 1
+fi
+if ! [ -d "$MODULESDIR" ]; then
+	log "Unable to find modules directory: $MODULESDIR"
+	exit 2
+fi
+log "Beginning backups"
+for file in "$MODULESDIR"/*; do
+	# Just keep going if we don't have any tasks to do
+	[ -f "$file" ] || continue
+	# Execute the module and alert if it fails
+	log "Executing module: $file"
+	(
+		source "$file"
+	) || {
+		log "Error executing module: $file"
+	}
+done
+