mirror of
https://github.com/kevinveenbirkenbach/computer-playbook.git
synced 2024-11-24 21:51:03 +01:00
86 lines
3.0 KiB
Bash
86 lines
3.0 KiB
Bash
#!/bin/bash
|
|
# @param $1 hostname from which backup should be pulled
|
|
|
|
echo "pulling backups from: $1" &&
|
|
|
|
# error counter
|
|
errors=0 &&
|
|
|
|
echo "loading meta data..." &&
|
|
|
|
remote_host="backup@$1" &&
|
|
echo "host address: $remote_host" &&
|
|
|
|
remote_machine_id="$( (ssh "$remote_host" sha256sum /etc/machine-id) | head -c 64 )" &&
|
|
echo "remote machine id: $remote_machine_id" &&
|
|
|
|
general_backup_machine_dir="/Backups/$remote_machine_id/" &&
|
|
echo "backup dir: $general_backup_machine_dir" &&
|
|
|
|
remote_backup_types="$(ssh "$remote_host" "find $general_backup_machine_dir -maxdepth 1 -type d -execdir basename {} ;")" &&
|
|
echo "backup types: $remote_backup_types" || exit 1
|
|
|
|
for backup_type in $remote_backup_types; do
|
|
if [ "$backup_type" != "$remote_machine_id" ]; then
|
|
echo "backup type: $backup_type" &&
|
|
|
|
general_backup_type_dir="$general_backup_machine_dir""$backup_type/" &&
|
|
general_versions_dir="$general_backup_type_dir" &&
|
|
local_previous_version_dir="$(ls -d $general_versions_dir* | tail -1)" &&
|
|
echo "last local backup: $local_previous_version_dir" &&
|
|
|
|
remote_backup_versions="$(ssh "$remote_host" ls -d "$general_backup_type_dir"\*)" &&
|
|
echo "remote backup versions: $remote_backup_versions" &&
|
|
|
|
|
|
remote_last_backup_dir=$(echo "$remote_backup_versions" | tail -1) &&
|
|
echo "last remote backup: $remote_last_backup_dir" &&
|
|
|
|
remote_source_path="$remote_host:$remote_last_backup_dir/" &&
|
|
echo "source path: $remote_source_path" &&
|
|
|
|
local_backup_destination_path=$remote_last_backup_dir &&
|
|
echo "backup destination: $local_backup_destination_path" &&
|
|
|
|
echo "creating local backup destination folder..." &&
|
|
mkdir -vp "$local_backup_destination_path" &&
|
|
|
|
echo "starting backup..."
|
|
rsync_command='rsync -abP --delete --delete-excluded --rsync-path="sudo rsync" --link-dest="'$local_previous_version_dir'" "'$remote_source_path'" "'$local_backup_destination_path'"'
|
|
|
|
echo "executing: $rsync_command"
|
|
|
|
retry_count=0
|
|
max_retries=12
|
|
retry_delay=300 # Retry delay in seconds (5 minutes)
|
|
last_retry_start=0
|
|
max_retry_duration=43200 # Maximum duration for a single retry attempt (12 hours)
|
|
|
|
while [[ $retry_count -lt $max_retries ]]; do
|
|
echo "Retry attempt: $((retry_count + 1))"
|
|
if [[ $retry_count -gt 0 ]]; then
|
|
current_time=$(date +%s)
|
|
last_retry_duration=$((current_time - last_retry_start))
|
|
if [[ $last_retry_duration -ge $max_retry_duration ]]; then
|
|
echo "Last retry took more than 12 hours, increasing max retries to 12."
|
|
max_retries=12
|
|
fi
|
|
fi
|
|
last_retry_start=$(date +%s)
|
|
eval "$rsync_command"
|
|
rsync_exit_code=$?
|
|
if [[ $rsync_exit_code -eq 0 ]]; then
|
|
break
|
|
fi
|
|
retry_count=$((retry_count + 1))
|
|
sleep $retry_delay
|
|
done
|
|
|
|
if [[ $rsync_exit_code -ne 0 ]]; then
|
|
echo "Error: rsync failed after $max_retries attempts"
|
|
((errors += 1))
|
|
fi
|
|
fi
|
|
done
|
|
exit $errors;
|