From 6dc493b37e059264b69e147edca4598cf0db1f9f Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Thu, 17 Aug 2023 17:00:22 +0200
Subject: [PATCH] feat: use cron to run backups

---
 Dockerfile    |  7 +++++++
 entrypoint.sh | 15 ++++++++-------
 run-backup.sh | 10 ++++++++++
 3 files changed, 25 insertions(+), 7 deletions(-)
 create mode 100755 run-backup.sh

diff --git a/Dockerfile b/Dockerfile
index e36e0b5..ec8c180 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,12 @@
 FROM kopia/kopia 
 
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update && apt-get install -y cron && rm -rf /var/lib/apt/lists/*
+
+ARG KOPIA_CRON_TIMES="*/30 * * * *"
+ENV KOPIA_CRON_TIMES ${KOPIA_CRON_TIMES}
+
+ADD run-backup.sh  / 
 ADD entrypoint.sh  / 
 
 ENTRYPOINT [ "/entrypoint.sh" ]
diff --git a/entrypoint.sh b/entrypoint.sh
index 4e98ae0..5011134 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,10 +1,11 @@
-#!/bin/sh 
+#!/bin/sh
 
-kopia --version
+CRONTAB=/etc/cron.d/kopia-backup
 
-kopia repository connect filesystem \
-    --path /repository \
-    --override-hostname ${KOPIA_HOSTNAME} \
-    --override-username ${KOPIA_USERNAME}
+echo "Running cron with schedule ${KOPIA_CRON_TIMES}"
 
-sleep infinity
+echo "${KOPIA_CRON_TIMES} /run-backup.sh > /dev/stdout" > ${CRONTAB}
+chmod 0644 ${CRONTAB}
+crontab ${CRONTAB}
+
+cron -f
diff --git a/run-backup.sh b/run-backup.sh
new file mode 100755
index 0000000..894501d
--- /dev/null
+++ b/run-backup.sh
@@ -0,0 +1,10 @@
+#!/bin/sh 
+
+kopia --version
+
+kopia repository connect filesystem \
+    --path /repository \
+    --override-hostname ${KOPIA_HOSTNAME} \
+    --override-username ${KOPIA_USERNAME}
+
+kopia snapshot create /backup