s3backer scripts for Nextcloud

migrate.sh

#!/bin/bash

mkdir -p /mnt/nextcloud-bucket/{s3backer,filesystem}

s3backer \
    --listBlocks \
    \
    --blockSize=1M \
    --size=500G	\
    \
    --blockCacheFile=/mnt/nextcloud-bucket/blockCacheFile \
    --blockCacheMaxDirty=64 \
    --blockCacheSize=256 \
    --blockCacheThreads=1 \
    --blockCacheWriteDelay=1000 \
    \
    --encrypt \
    --passwordFile=/etc/s3backer/passwordFile \
    \
    --accessFile=/etc/s3backer/accessFile \
    --baseURL=https://s3.eu-central-1.wasabisys.com/ \
    \
nextcloud-bucket \
/mnt/nextcloud-bucket/s3backer

if [ $? -ne 0 ]; then
    >&2 echo "Failed to mount S3 bucket."
    exit 1
fi

if ! mkfs.ext4 /mnt/nextcloud-bucket/s3backer/file; then
    >&2 echo "Failed to create EXT4 filesystem on s3backer file."
    exit 1
fi

if ! mount /mnt/nextcloud-bucket/{s3backer/file,filesystem}; then
    >&2 echo "Failed to mount EXT4 filesystem."
    exit 1
fi

if ! rsync -ahP /var/www/cloud.example.com/data /mnt/nextcloud-bucket/filesystem/data; then
    >&2 echo "Rsync didn't complete successfully."
    exit 1
fi

mv /var/www/cloud.example.com/{data,data-old}
mkdir /var/www/cloud.example.com/data

if ! mount --bind /mnt/nextcloud-bucket/filesystem/data /var/www/cloud.example.com/data; then
    >&2 echo "Failed to bind-mount new data dir to old data dir's location."
    exit 1
fi

mount.sh

#!/bin/bash

mkdir -p /mnt/nextcloud-bucket/{s3backer,filesystem}

s3backer \
    --listBlocks \
    \
    --blockCacheFile=/mnt/nextcloud-bucket/blockCacheFile \
    --blockCacheMaxDirty=64 \
    --blockCacheSize=256 \
    --blockCacheThreads=1 \
    --blockCacheWriteDelay=1000 \
    \
    --encrypt \
    --passwordFile=/etc/s3backer/passwordFile \
    \
    --accessFile=/etc/s3backer/accessFile \
    --baseURL=https://s3.eu-central-1.wasabisys.com/ \
    \
nextcloud-bucket \
/mnt/nextcloud-bucket/s3backer

if [ $? -ne 0 ]; then
    >&2 echo "Failed to mount S3 bucket."
    exit 1
fi

if ! mount /mnt/nextcloud-bucket/{s3backer/file,filesystem}; then
    >&2 echo "Failed to mount EXT4 filesystem."
    exit 1
fi

mkdir -p /var/www/cloud.example.com/data

if ! mount --bind /mnt/nextcloud-bucket/filesystem/data /var/www/cloud.example.com/data; then
    >&2 echo "Failed to bind-mount data dir to required location."
    exit 1
fi

Mentioned here: nextcloud/server#22077 (comment)