Renamed backup roles

roles/svc-bkp-rmt-2-loc/files/sys-bkp-remote-to-local.sh

@@ -0,0 +1,85 @@
+#!/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;