Script to backup Firefly III database, uploads and config files installed with docker-compose

firefly-iii-backuper.sh

#!/bin/bash

files_to_backup=(.*.env .env docker-compose.yml )

info()  { echo -e "\\033[1;36m[INFO]\\033[0m  \\033[36m$*\\033[0m" >&2; }
warn()  { echo -e "\\033[1;33m[WARNING]\\033[0m  \\033[33m$*\\033[0m" >&2; }
fatal() { echo -e "\\033[1;31m[FATAL]\\033[0m  \\033[31m$*\\033[0m" >&2; exit 1; }

intro () {
    echo " ====================================================="
    echo "     Backup & Restore docker based FireFly III v1.6   "
    echo " ====================================================="
    echo " It automatically detects db & upload volumes based on the name matching the following regex: firefly[_-](iii|)[_-]?"
    echo " Requirements:"
    echo " - Place the script in the same directory where your docker-compose.yml and .env files are saved"
    echo " Warning: The destination directory is created if it does not exist"
}

usage () {
    echo "Usage: $0 backup|restore /tmp/backup/destination/dir [no_files]"
    echo "- backup|restore - Action you want to execute"
    echo "- destination path of your backup file including file name"
    echo "- optionally backup or restore volumns only when no_files parameter is passed"
    echo "Example backup: $0 backup /home/backup/firefly-2022-01-01.tar.gz"
    echo "Example restore: $0 restore /home/backup/firefly-2022-01-01.tar.gz"
    echo "To backup once per day you can add something like this to your cron:"
    echo "1 01 * * * bash /home/myname/backuper.sh backup /home/backup/\$(date '+%F').tar.gz"
    echo "To restore a database of a specific Firefly version follow the steps below"
    echo "- Look for the Firefly version from your backup. It's in <backup>.tar.gz/version.txt"
    echo "- Use the Firefly docker tag (https://hub.docker.com/r/fireflyiii/core/tags) corresponding to your version"
    echo "- Change the firefly image to a tag from your version. Example:"
    echo "  image: fireflyiii/core:version-6.1.10"
    echo "- Run docker compose up"
    echo "- Run this script to restore the backup"
}

backup () {
    script_path="$1"

    if [ ! -d "$(dirname $2)" ]; then
        info "Creating destination directory: $(dirname $2)"
        mkdir -p "$(dirname $2)"
    fi

    full_path=$(realpath $2)
    dest_path="$(dirname $full_path)"
    dest_file="$(basename $full_path)"
    upload_volume="$3"
    no_files=$4

    to_backup=()

    if [ -f "$full_path" ]; then
        warn "Provided file path already exists: $full_path. Overwriting"
    fi

    # Create temporary directory
    if [ ! -d "$dest_path/tmp" ]; then
        mkdir "$dest_path/tmp"
    fi

    # Files backup
    if [ $no_files = "false" ]; then
        not_found=()
        for pattern in "${files_to_backup[@]}"; do
            for file in ${script_path}/${pattern}; do
                if [[ ! -f $file ]]; then
                    not_found+=("$file")
                else
                    cp "$file" "$dest_path/tmp/"
                    to_backup+=($(basename "$file"))
                fi
            done
        done

        if ((${#not_found[@]})); then
            warn "The following files were not found in $script_path: ${not_found[@]}. Skipping."
        fi

        if ((${#to_backup[@]})); then
            info "Backing up the following files in $script_path: ${to_backup[@]}"
        fi
    fi

    # Version
    app_container=$(docker ps | grep -E 'firefly[-_](iii|)[_-]?(core|app)' | cut -d ' ' -f 1)
    app_version=$(docker exec -it $app_container grep -F "'version'" /var/www/html/config/firefly.php | tr -s ' ' | cut -d "'" -f 4)
    db_version=$(docker exec -it $app_container grep -F "'db_version'" /var/www/html/config/firefly.php | tr -s ' ' | tr -d ',' | cut -d " " -f 4)
    info 'Backing up App & database version numbers.'
    echo -e "Application: $app_version\nDatabase: $db_version" > "$dest_path/tmp/version.txt"
    to_backup+=(version.txt)

    # DB container
    db_container=$(docker ps | grep -E 'firefly[-_](iii|)[_-]?db' | cut -d ' ' -f 1)
    if [ -z $db_container ]; then
        warn "db container is not running. Not backing up."
    else
        info 'Backing up database'
        docker exec $db_container bash -c '/usr/bin/mariadb-dump -u $MYSQL_USER --password="$MYSQL_PASSWORD" "$MYSQL_DATABASE"' > "$dest_path/tmp/firefly_db.sql"
        to_backup+=("firefly_db.sql")
    fi

    # Upload Volume
    if [ -z $upload_volume ]; then
        warn "upload volume does NOT exist. Not backing up."
    else
        info 'Backing up upload volume'
        docker run --rm -v "$upload_volume:/tmp" -v "$dest_path/tmp:/backup" alpine tar -czf "/backup/firefly_upload.tar.gz" -C "/" "tmp"
        to_backup+=("firefly_upload.tar.gz")
    fi

    # Compress
    tar -C "$dest_path/tmp" -czf "$dest_path/$dest_file" --files-from <(printf "%s\n" "${to_backup[@]}")

    # Clean up
    for file in "${to_backup[@]}"; do
        rm -f "$dest_path/tmp/$file"
    done
    rmdir "$dest_path/tmp"
}

restore () {
    script_path="$1"
    full_path=$(realpath $2)
    src_path="$(dirname $full_path)"
    backup_file="$(basename $full_path)"
    upload_volume="$3"
    no_files=$4

    if [ ! -f "$src_path/$backup_file" ]; then
        fatal "Provided backup file does not exist: $path"
    fi

    # Create temporary directory
    if [ ! -d "$src_path/tmp" ]; then
        mkdir "$src_path/tmp"
    fi

    # Files restore
    if [ $no_files = "false" ]; then
        tar -C "$src_path/tmp" -xf "$src_path/$backup_file"
        readarray -t <<<$(tar -tf "$src_path/$backup_file")
        # restored=(${MAPFILE[*]})
        not_found=()
        restored=()
        for f in "${files_to_backup[@]}"; do
            if [ ! -f "$script_path/$f" ]; then
                not_found+=("$f")
            else
                cp "$src_path/tmp/$f" .
                restored+=("$f")
            fi
        done

        if ((${#not_found[@]})); then
            warn "The following files were not found in $script_path: ${not_found[@]}. Skipping."
        fi

        if ((${#restored[@]})); then
            info "Restoring the following files: ${restored[@]}"
        fi
    else
        tar -C "$src_path/tmp" -xf "$src_path/$backup_file" firefly_db.sql firefly_upload.tar.gz
        restored=(firefly_db.sql firefly_upload.tar.gz)
    fi

    if [ ! -z $upload_volume ]; then
        warn "The upload volume exists. Overwriting."
    fi

    docker run --rm -v "$upload_volume:/recover" -v "$src_path/tmp:/backup" alpine tar -xf /backup/firefly_upload.tar.gz -C /recover --strip 1
    restored+=(firefly_upload.tar.gz)

    db_container=$(docker ps | grep -E 'firefly[-_](iii|)[_-]?db' | cut -d ' ' -f 1)

    if [ -z $db_container ]; then
        warn "The db container is not running. Not restoring."
    else
        info 'Restoring database'
        cat "$src_path/tmp/firefly_db.sql" | docker exec -i $db_container bash -c '/usr/bin/mariadb -u $MYSQL_USER --password="$MYSQL_PASSWORD" "$MYSQL_DATABASE"'
        restored+=(firefly_db.sql)
    fi

    restored+=(version.txt)
    # Clean up
    for file in "${restored[@]}"; do
        rm -f "$src_path/tmp/$file"
    done
    rmdir "$src_path/tmp"
}

main () {
    intro

    if [ $# -lt 2 ]; then
        fatal "Not enough parameters.\n$(usage)"
    fi

    backuper_dir="$(dirname $0)"
    action=$1
    path="$2"
    if [ -z "$3" ]; then
        no_files=false
    else
        no_files=true
    fi

    if [ -d "$path" ]; then
        fatal "Path is an existing directory. It has to be a file path"
    fi

    upload_volume="$(docker volume ls | grep -F "firefly_iii_upload" | tr -s ' ' | cut -d ' ' -f 2)"

    if [ "$action" == 'backup' ]; then
        backup "$backuper_dir" "$path" "$upload_volume" $no_files
    elif [ "$action" == 'restore' ]; then
        restore "$backuper_dir" "$path" "$upload_volume" $no_files
    else
        fatal "Unrecognized action $action\n$(usage)"
    fi
}

main "$@"

Restore with postgresql container

Problem was that the container needs to be running for the restore. But when you start the db container it automatically creates a new database.
Solution was to drop the database, create a fresh one and recover the dump. The following is working for me:

info 'Step 1: Drop existing database'
docker exec -i $db_container dropdb -U username databasename
info 'Step 2: Create fresh database'
docker exec -i $db_container createdb -U username databasename
info 'Step 3: Restore dump'
cat "$src_path/tmp/firefly_db.sql" | docker exec -i $db_container psql -U username -d databasename

It might be easier to comment if you share your Docker command (or docker-compose.yml if that's what you're using).

• At first glance my uncaffeinated brain wants to suggest that whatever image you're using just doesn't have bash ("bash": executable file not found), which is then causing commands like cat not to work, but if you're running fireflyiii/core:latest then this feels improbable (though I haven't tried running Firefly at all in recent times).
• If cat doesn't work, do things like less work? Can you run ls? Do any of the typical commands work?
• Have you verified that the contents of firefly_db.sql makes sense? (This is probably unrelated to any of the errors, just covering all bases.)

I would also note though that you seem to have 2 errors here: "docker: invalid spec" and "OCI runtime exec failed".

Somehow the tar file only gets a date in my case.
2014-01-18.tar
So no version or anything (this part '+%F' doesn't work).
If anyone knows how I can get that fixed..... :)

Other than that the save and restore work fine!

@MuellerNicolas Unfortunately I don't tested it with PostgreSQL so can't help much. With mariadb the restore works just fine.
@PuckStar Not sure why this doesn't work. Do you use bash? Try date '+%Y-%m-%d'

@PuckStar Not sure why this doesn't work. Do you use bash? Try date '+%Y-%m-%d'

The date part already worked. It's the Firefly version that is not included in the filename. But looking at your script again I think I expected something that is not there :). You only include "firefly" in the filename so not also the actual version of Firefly. Right?
So this is in your script as example: firefly-2022-01-01.tar.gz
But mine come out as 2022-01-01.tar
In that case let's ignore it.

Thanks by the way for your script! It's very helpful!

@PuckStar Yes, that's correct. You can still find the firefly and database version inside the archive in version.txt file.
You are welcome! I'm happy it helps :)

Thank you for the script.
Suggestion : Rename ".fidi.env" file to ".importer.env", as its actual name on Firefly-III documetation : https://docs.firefly-iii.org/how-to/data-importer/installation/docker/#:~:text=save%20it%20as-,.importer.env,-next%20to%20the

@Breach7874 Good point. I updated it so it backups all .*.env files. It used to be .fidi.env in previous Data Importer versions so now it supports older and newer versions.

1.5 doesn't backup .env, all the other dot files are.

Thanks @BoomerET for the information. I've just updated it to backup both .*.env and .env files. Additionally, I fixed a bug that caused the script to not find the .*.env files if executed from a different directory.

There's an issue running this in cron that is not the fault of the script but the Firefly III documentation on how to run this with cron. I wanted to post this because I spent an entire day thinking it was the script's fault but it's just a configuration issue.

The Firefly III documentation says to set the cron this way:
1 01 * * * bash /home/myname/backuper.sh backup /home/backup/$(date '+%F').tar

This is incorrect because of the percent sign that is used. Cron uses percents so it needs to be escaped for it to fire off. Correct way:
1 01 * * * bash /home/myname/backuper.sh backup /home/backup/$(date '+\%F').tar

Figured I'd post it here to save everyone time since there aren't any comments on Firefly III side.

@jlindfors Thank you for posting this, it drove me crazy.

@jlindfors @BoomerET Fixed in the documentation.