Add __prometheus_borgbackup_exporter type

type/__prometheus_borgbackup_exporter/files/prometheus-borgbackup-exporter.service.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+cat << EOF
+[Unit]
+Description=e-Durable's Prometheus Borgbackup exporter
+After=network.target
+
+[Service]
+Type=simple
+User=borgbackup
+ExecStart=/opt/prometheus-borgbackup-exporter/venv/bin/python /opt/prometheus-borgbackup-exporter/prometheus-borgbackup-exporter $REPOS_DIR
+
+[Install]
+WantedBy=multi-user.target
+EOF

type/__prometheus_borgbackup_exporter/files/prometheus-borgbackup-exporter.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+cat << EOF
+#!/sbin/openrc-run
+
+supervisor="supervise-daemon"
+command_user=borgbackup
+command="/opt/prometheus-borgbackup-exporter/venv/bin/python /opt/prometheus-borgbackup-exporter/prometheus-borgbackup-exporter $REPOS_DIR"
+EOF

type/__prometheus_borgbackup_exporter/gencode-remote

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+VCS_TAG=$(cat "${__object:?}/parameter/version")
+VCS_URL="https://code.recycled.cloud/e-Durable/prometheus-borgbackup-exporter/raw/tag/$VCS_TAG/prometheus-borgbackup-exporter"
+
+cat << EOF
+cd /opt/prometheus-borgbackup-exporter
+
+# Fetch sources.
+curl "$VCS_URL" -o prometheus-borgbackup-exporter
+
+# Install virtualenv and dependencies.
+virtualenv venv
+. venv/bin/activate
+pip install prometheus_client
+pip install dateutils
+
+# Start service
+service prometheus-borgbackup-exporter start
+EOF

type/__prometheus_borgbackup_exporter/man.rst

@@ -0,0 +1,52 @@
+cdist-type__prometheus_borgbackup_exporter(7)
+=====================
+
+NAME
+----
+cdist-type__prometheus_borgbackup_exporter - Deploy a Prometheus exporter for the e-Durable borgbackup server
+
+
+DESCRIPTION
+-----------
+This (singleton) type deploys a Prometheus exporter for the e-Durable borgbackup exporter
+
+REQUIRED PARAMETERS
+-------------------
+version
+  Release tag used to fetch sources from upstream's VCS.
+
+OPTIONAL PARAMETERS
+-------------------
+repos-dir
+  Directory containing borg repositories to monitor.
+
+BOOLEAN PARAMETERS
+------------------
+None.
+
+EXAMPLES
+--------
+
+.. code-block:: sh
+
+    __prometheus_borgbackup_expoter --version v0.1
+
+
+SEE ALSO
+--------
+- `Borgbackup <https://www.borgbackup.org/>`_
+- `prometheus-borgbackup-exporter VCS <https://code.recycled.cloud/e-Durable/prometheus-borgbackup-exporter>`_
+- `__borg(7)`
+- `__borg_repo(7)`
+
+AUTHORS
+-------
+Timothée Floure <t.floure@e-durable.ch>
+
+
+COPYING
+-------
+Copyright \(C) 2020 Timothée Floure. You can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation, either version 3 of the
+License, or (at your option) any later version.

type/__prometheus_borgbackup_exporter/manifest

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+os=$(cat "${__global:?}/explorer/os")
+
+mkdir -p "${__object:?}/files"
+case "$os" in
+	debian|ubuntu)
+		__package python3-virtualenv
+		__package curl
+
+	"${__type:?}/files/prometheus-borgbackup-exporter.service.sh" \
+		> "${__object:?}/files/prometheus-borgbackup-exporter.service"
+		__systemd_unit prometheus-borgbackup-exporter.service \
+			--source "${__object:?}/files/prometheus-borgbackup-exporter.service" \
+			--enablement-state enabled
+	;;
+	alpine)
+		__package py3-virtualenv
+		__package curl
+
+		"${__type:?}/files/prometheus-borgbackup-exporter.sh" \
+			> "${__object:?}/files/prometheus-borgbackup-exporter"
+		__file /etc/init.d/prometheus-borgbackup-exporter \
+			--source "${__object:?}/files/prometheus-borgbackup-exporter" \
+			--mode 0755
+	;;
+*)
+	echo "$os is not supported by this type. Exiting" >&2
+	exit 1
+	;;
+esac
+
+REPOS_DIR=$(cat "${__object:?}/parameter/repos-dir")
+export REPOS_DIR
+__directory /opt/prometheus-borgbackup-exporter
+
+# Make sure the borgbackup user exist.
+__user borgbackup --home "$REPOS_DIR" --create-home

type/__prometheus_borgbackup_exporter/parameter/default/repos-dir

@@ -0,0 +1 @@
+/srv/backup

type/__prometheus_borgbackup_exporter/parameter/optional

@@ -0,0 +1 @@
+repos-dir

type/__prometheus_borgbackup_exporter/parameter/required

@@ -0,0 +1 @@
+version