I'm having trouble automating the restic backup using systemd.

I followed the linked guide, which seems pretty straightforward. Backup works fine when I run it manually, but when I try to run systemctl status restic-backup.service I get the following error: Fatal: parsing repository location failed: s3: bucket name not found

I have triple-checked the file paths, and also added PassEnvironment=AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY RESTIC_REPOSITORY RESTIC_PASSWORD_FILE B2_ACCOUNT_ID B2_ACCOUNT_KEY to the restic-backup.service file, which I saw used elsewhere. This is my first time using systemd, so I'm not sure if I am overlooking an obvious step or what.

OS: Xubuntu

restic: installed locally following these steps

backup: Backblaze B2 bucket with s3

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[–] 1 point 1 year ago* (1 child)

Have you tried setting up rclone for cloud access and then using restic with -r "rclone:my_aws:path/to/backup"?

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  • [–] 6 points 1 year ago (1 child)

    My recommendation is to put all of the variables in an environment file, and use systemd's EnvironmentFile (in [Service] to point to it.

    One of my backup service files (I back up to disks and cloud) looks like this:

    [Unit]
    Description=Backup to MyUsbDrive
    Requires=media-MyUsbDrive.mount
    After=media-MyUsbDrive.mount
    
    [Service]
    EnvironmentFile=/etc/backup/environment
    Type=simple
    ExecStart=/usr/bin/restic backup --tag=prefailure-2 --files-from ${FILES} --exclude-file ${EXCLUDES} --one-file-system
    
    [Install]
    WantedBy=multi-user.timer
    

    FILES is a file containing files and directories to be backed up, and is defined in the environment file; so is EXCLUDES, but you could simply point restic at the directory you want to back up instead.

    My environment file looks essentially like

    RESTIC_REPOSITORY=/mnt/MyUsbDrive/backup
    RESTIC_PASSWORD=blahblahblah
    KEEP_DAILY=7
    KEEP_MONTHLY=3
    KEEP_YEARLY=2
    EXCLUDES=/etc/backup/excludes
    FILES=/etc/backup/files
    

    If you're having trouble, start by looking at how you're passing in the password, and whether it's quoted properly. It's been a couple of years since I had this issue, but at one point I know I had spaces in a passphrase and had quoted the variable, and the quotes were getting passed in verbatim.

    My VPS backups are more complex and get their passwords from a keystore, but for my desktop I keep it simple.

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    [–] 4 points 1 year ago (1 child)

    Are you using B2 or S3? Setting both might be causing it to get confused. The bucket name needs to be appended to the end of the S3 or B2 URL like "s3:b2.backblaze.com/<bucket_name>" inside the RESTIC_REPOSITORY variable

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  • [–] [S] 2 points 1 year ago

    I was using s3, and I added the b2 variables in a "throw everything at the wall and see what sticks" process. not a good idea, but I do try to fix things on my own before posting things here. Occasionally I can figure it out lol. I've removed the b2 variables.

    It occurs to me that I have restic set up as an app in backblaze according to this, so I'm not sure how it knows which bucket to use. appending the bucket name to the url does not change the outcome.

    Now I am also getting: Fatal: unable to open config file: Stat: 401

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  • [–] 2 points 1 year ago (2 children)
  • [–] 2 points 1 year ago (1 child)

    The problem seems to be that when you run restic with systemctl start, it passen on your user environment including the information of where your rclone.conf lies. When the systemd service runs on its own it doesn't have this. You need to either tell restic the path to your rclone config or set the home environment such that the systemd service checks the right location.

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  • [–] [S] 1 point 1 year ago*

    my Files look like this:

    # /etc/systemd/system/restic-backup.service
    
    [Unit]
    Description=Generate a restic backup snapshot
    After=network.target
    
    [Service]
    Type=oneshot
    WorkingDirectory=/
    EnvironmentFile=/etc/restic-env
    PassEnvironment=AWS_ACCESS_KEY_ID AWS_SECRET_ACCESS_KEY RESTIC_REPOSITORY RESTIC_PASSWORD_FILE
    Environment=XDG_CACHE_HOME=/var/cache
    ExecStart=/usr/bin/restic backup -r s3:https://s3.us-west-004.backblazeb2.com/XXXBUCKETNAMEXXX /home/XXXX /etc /media/XXXX/Storage --tag auto
    ExecStart=/usr/bin/restic forget --prune --keep-hourly 6 --keep-daily 7 --keep-weekly 4 --keep-monthly 6 --tag auto
    ExecStart=/usr/bin/restic check --read-data
    
    Nice=19
    IOSchedulingClass=best-effort 
    IOSchedulingPriority=7
    TimeoutSec=3600
    Restart=no
    
    [Install]
    WantedBy=multi-user.target
    
    # /etc/restic-env
    
    export AWS_ACCESS_KEY_ID=004XXXXXXXXXXXXXX
    export AWS_SECRET_ACCESS_KEY=K00XXXXXXXXXXXXXXXXXXXXXXXX
    export RESTIC_REPOSITORY=s3:s3.us-west-004.backblazeb2.com
    export RESTIC_PASSWORD_FILE=/etc/restic-password
    
    DEBUG_LOG=restic.log
    

    I'm running the systemd commands from a root terminal and the permissions on restic-env and restic-password are 700

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  • [–] 2 points 1 year ago*

    I used this. If you get stuck, try it out. Or check the code for ideas.

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  • [–] 0 points 1 year ago

    Don't do that. Use resticprofile.

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