From be9e705ef0dd0c0315f18d14635d9fba00c1063b Mon Sep 17 00:00:00 2001
From: piccihud <piccihud@email>
Date: Sun, 25 Feb 2024 20:12:02 +0100
Subject: [PATCH] Aggiunto script del backup nel file volumebk.md

---
 container/volumebk.md | 66 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/container/volumebk.md b/container/volumebk.md
index 88be873..99dcd78 100644
--- a/container/volumebk.md
+++ b/container/volumebk.md
@@ -102,6 +102,72 @@ Permissions Size User Date Modified Name
 .rw-r--r--   259 root 25 Feb 15:42   snikket-data_bk_2024-02-25.tar.gz
 ```
 
+## Script di esempio
+
+```bash
+#!/bin/bash
+
+TOPIC="nomedeltopic"
+SERVER="ntfy.server.net"
+BACKUP_DIR="/etc/snikket/backup"
+CONTAINER_LIST=$(docker container ls -q)
+# Lista di immagini con il tag 'stable'
+IMAGE_LIST=$(docker images --filter "reference=snikket/*:stable" -q)
+VOLUME_LIST=$(docker volume ls --format '{{.Name}}')
+
+# Funzioni per inviare notifiche
+send_success_notification() {
+    curl -H "X-Tags: tada" -H "Attach: https://yanbin.blog/wp-content/uploads/2020/03/docker-2.png" -d "Backup volume $VOLUME_NAME OK! :)" $SERVER/$TOPIC
+}
+
+# Funzione per inviare notifica di errore
+send_error_notification() {
+    curl -H "X-Tags: skull" -d "Backup volume $VOLUME_NAME ERROR!" $SERVER/$TOPIC
+}
+
+notify_backup_removed() {
+    curl -H "X-Tags: warning" -d "Some backups have been deleted" $SERVER/$TOPIC
+}
+
+# Rimozione dei backup piu' vecchi di 7 giorni
+remove_old_backups() {
+    if [ find $BACKUP_DIR -type f -name "*.tar.gz" -mtime +7 -exec rm {} \; ]; then
+        notify_backup_removed
+    else
+	echo "Nessun backup eliminato!"
+    fi
+}
+
+### BACKUP ####
+
+cd $BACKUP_DIR
+
+# Commit per ogni container nella lista
+for CONTAINER_ID in $CONTAINER_LIST; do
+    docker container commit $CONTAINER_ID || send_error_notification
+done
+
+# tr (translate or delete characters):
+# tr: un comando che serve per tradurre o eliminare caratteri in un flusso di dati.
+# tr '/' '-' traduce ogni carattere '/' in '-'
+
+# Backup delle immagini
+for IMAGE_ID in $IMAGE_LIST; do
+    # Ottieni il nome dell'immagine con il tag
+    IMAGE_NAME_WITH_TAG=$(docker inspect --format='{{.RepoTags}}' $IMAGE_ID | tr -d '[] ')
+
+    docker image save -o $(echo $IMAGE_NAME_WITH_TAG | cut -d '/' -f 2 | tr ':' '-')_$(date +%F)_IMAGE.tar.gz $IMAGE_NAME_WITH_TAG || send_error_notification
+done
+
+# Backup dei volumi
+for VOLUME_NAME in $VOLUME_LIST; do
+    docker run --rm --mount source=$VOLUME_NAME,target=/$VOLUME_NAME -v $(pwd):/backup busybox tar -czvf /backup/$VOLUME_NAME\_bk_$(date +%F)_VOLUME.tar.gz /$VOLUME_NAME && send_success_notification || send_error_notification
+done
+
+# Rimozione dei backup piu' vecchi di 7 giorni
+remove_old_backups
+```
+
 ## Collegamenti
 
 - [https://docs.docker.com/desktop/backup-and-restore/](https://docs.docker.com/desktop/backup-and-restore/)