Selfhosted

60210 readers

951 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

Detailed Rules Post

Be civil.
No spam.
Posts are to be related to self-hosting.
Don't duplicate the full text of your blog or readme if you're providing a link.
Submission headline should match the article title.
No trolling.
Promotion posts require active participation, with an account that is at least 30 days old. F/LOSS without a paywall has exceptions, with requirements. See the rules link for details.

Resources:

selfh.st Newsletter and index of selfhosted software and apps
awesome-selfhosted software
awesome-sysadmin resources
Self-Hosted Podcast from Jupiter Broadcasting

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 3 years ago

MODERATORS

curbstickle@anarchist.nexus

curbstickle_lw@lemmy.world

Where to start with backups? (lemmy.world)

submitted 5 months ago by mapleseedfall@lemmy.world to c/selfhosted@lemmy.world

31 comments fedilink hide all child comments

hi peeps.

Im early on my selfhosting journey and managed to setup some things as a test in docker. the main service im looking to run is ERPNext. after a while I got it up and running so now I want to back this up including all the customization I did in the app.

where to start with this? any intuitive guide?

you are viewing a single comment's thread
view the rest of the comments

[–] irmadlad@lemmy.world 1 points 5 months ago* (last edited 5 months ago) (1 children)

Out of curiosity, how are you doing the drive imaging?

I wrote a script that is fired by a cron job once a month:

sudo nano /usr/local/bin/backup_drive.sh

spoiler

# Directory to store backups

BACKUP_DIR="/mnt/myhdd"

# Drive to backup

DRIVE="/dev/sdX"

# Create a timestamp

TIMESTAMP=$(date +"%Y%m%d")

# Filename for the new image

NEW_IMAGE="$BACKUP_DIR/my_drive_image_$TIMESTAMP.img"

# Create the image

sudo dd if=$DRIVE of=$NEW_IMAGE bs=4M status=progress

# Keep the last 3 images

ls -tp $BACKUP_DIR/my_drive_image_*.img | grep -v '/$' | tail -n +4 | xargs -I {} rm -- {}

Make the script executable:

sudo chmod +x /usr/local/bin/backup_drive.sh

Create Cron:

sudo crontab -e

0 3 1 * * /usr/local/bin/backup_drive.sh

Verify cron:

sudo crontab -l

I'm sure it could be written differently or that there is a better way to do the imaging, but that is the extent of my notes, and it works for me. As with any code you find on the internet, it is wise to evaluate before dropping on a production server.

[–] Cyber@feddit.uk 2 points 5 months ago (1 children)

Ah, good old dd

When you have some spare time, take a look at partclone - clonezilla uses it because it only backs up used blocks, not free space, so more efficient.

[–] irmadlad@lemmy.world 1 points 5 months ago

Thanks for the tip. I'll definitely check it out