223 lines
7.6 KiB
Bash
223 lines
7.6 KiB
Bash
#!/bin/bash
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# -----------------------------------------------------------------------------------------------
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# ----------------------- Common Helpers for Unraid Scripts -------------------------------------
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# -----------------------------------------------------------------------------------------------
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# ----------------------------- Logging -----------------------------
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log() {
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[[ "$ENABLE_LOGGING" == true ]] && echo "[LOG] $(date '+%Y-%m-%d %H:%M:%S') $*"
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}
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# ----------------------------- Argument Parsing -----------------------------
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parse_args() {
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DRY_RUN=${DRY_RUN:-false}
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for ARG in "$@"; do
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if [[ "$ARG" == *=* ]]; then
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VAR_NAME="${ARG%%=*}"
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VAR_VALUE="${ARG#*=}"
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if declare -p "$VAR_NAME" &>/dev/null; then
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printf -v "$VAR_NAME" '%s' "$VAR_VALUE"
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log "Overriding $VAR_NAME -> $VAR_VALUE"
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else
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echo "Warning: Unknown variable $VAR_NAME, ignoring."
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fi
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else
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case "$ARG" in
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--dry-run|-n) DRY_RUN=true ;;
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--help|-h) echo "Usage: script [--dry-run|-n] [VAR=value ...]"; exit 0 ;;
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*) echo "Warning: Unknown argument $ARG" ;;
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esac
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fi
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done
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}
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require_var() {
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local var="$1"
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if [[ -z "${!var:-}" ]]; then
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echo "Error: Required variable $var is not set."
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exit 1
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fi
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}
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validate_int() {
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local name="$1"
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local value="$2"
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if ! [[ "${value:-}" =~ ^[0-9]+$ ]]; then
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echo "Error: $name must be a non-negative integer."
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exit 1
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fi
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}
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# ----------------------------- Host Detection & SSH -----------------------------
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detect_hosts() {
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LOCAL_HOSTNAME="$(hostname)"
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if [[ "$LOCAL_HOSTNAME" == "$HOST1" ]]; then
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LOCAL_SERVER_NAME="$HOST1"
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REMOTE_SERVER_NAME="$HOST2"
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elif [[ "$LOCAL_HOSTNAME" == "$HOST2" ]]; then
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LOCAL_SERVER_NAME="$HOST2"
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REMOTE_SERVER_NAME="$HOST1"
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else
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echo "Error: Local hostname ($LOCAL_HOSTNAME) not recognized."
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exit 1
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fi
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declare -A SSH_KEYS
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SSH_KEYS["$HOST1|$HOST2"]="$HOST1_SSH_KEY"
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SSH_KEYS["$HOST2|$HOST1"]="$HOST2_SSH_KEY"
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KEY_ID="$LOCAL_SERVER_NAME|$REMOTE_SERVER_NAME"
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SSH_KEY="${SSH_KEYS[$KEY_ID]}"
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if [[ -z "$SSH_KEY" ]]; then
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echo "Error: No SSH key defined for $LOCAL_SERVER_NAME → $REMOTE_SERVER_NAME"
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exit 1
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fi
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echo "Local server: $LOCAL_SERVER_NAME, Remote server: $REMOTE_SERVER_NAME, SSH key: $SSH_KEY"
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log "Detected hosts successfully"
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}
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# ----------------------------- Remote Server IP -----------------------------
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resolve_remote_ip() {
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REMOTE_SERVER=$(tailscale ip -4 "$REMOTE_SERVER_NAME" 2>/dev/null)
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if [[ -z "$REMOTE_SERVER" ]]; then
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echo "Error: Could not resolve Tailscale IP for $REMOTE_SERVER_NAME"
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exit 1
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fi
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echo "Remote IP: $REMOTE_SERVER"
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log "Resolved Tailscale IP successfully"
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}
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# ----------------------------- Container Helpers -----------------------------
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declare -a RUNNING_CONTAINERS=()
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stop_containers() {
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echo "Checking critical containers on $REMOTE_SERVER_NAME..."
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RUNNING_CONTAINERS=()
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for container in "${CRITICAL_CONTAINER_NAMES[@]}"; do
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STATUS=$(ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" \
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"docker inspect -f '{{.State.Running}}' $container 2>/dev/null" || echo "false")
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log "Container $container running: $STATUS"
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if [[ "$STATUS" == "true" ]]; then
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echo "Stopping $container"
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RUNNING_CONTAINERS+=("$container")
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ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" "docker stop $container"
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fi
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done
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}
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start_containers() {
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echo "Restarting containers on $REMOTE_SERVER_NAME..."
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for container in "${RUNNING_CONTAINERS[@]}"; do
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if [[ " ${DELAYED_CONTAINERS[*]} " == *" $container "* ]]; then
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echo "Delaying start of $container by ${CONTAINER_DELAY}s..."
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sleep "$CONTAINER_DELAY"
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fi
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ssh -i "$SSH_KEY" root@"$REMOTE_SERVER" "docker start $container"
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log "Container $container started"
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done
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}
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# ----------------------------- Rsync Options Builder -----------------------------
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get_rsync_opts() {
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if [[ -n "${PROFILE_RSYNC_OPTS[$PROFILE_NAME]:-}" ]]; then
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read -r -a RSYNC_OPTS <<< "${PROFILE_RSYNC_OPTS[$PROFILE_NAME]}"
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log "Using profile-specific rsync options: ${RSYNC_OPTS[*]}"
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else
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RSYNC_OPTS=("${DEFAULT_RSYNC_OPTS[@]}")
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log "Using default rsync options: ${RSYNC_OPTS[*]}"
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fi
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}
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3️⃣ rsync.sh
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Minimal user-facing echo + detailed logging via log:
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#!/bin/bash
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set -e
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# Load configs & helpers
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source "$SCRIPT_DIR/../Master.conf"
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source "$SCRIPT_DIR/../common.sh"
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# ----------------------------- Input -----------------------------
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DIRECTORY="$1"
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if [[ -z "$DIRECTORY" ]]; then
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echo "Usage: $0 <directory-to-sync> [--dry-run] [VAR=value ...]"
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exit 1
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fi
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shift
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parse_args "$@"
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# ----------------------------- Hosts & IP -----------------------------
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detect_hosts
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resolve_remote_ip
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# ----------------------------- Profile -----------------------------
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PROFILE_NAME=$(basename "$DIRECTORY" | tr '[:upper:]' '[:lower:]')
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MAX_RSYNC_PROCS=${PROFILE_MAX_PROCS[$PROFILE_NAME]:-$MAX_RSYNC_PROCS}
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BW_LIMIT=${PROFILE_BW_LIMIT[$PROFILE_NAME]:-$BW_LIMIT}
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CRITICAL_CONTAINER_NAMES=(${PROFILE_CRITICAL_CONTAINER_NAMES[$PROFILE_NAME]})
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DELAYED_CONTAINERS=(${PROFILE_DELAYED_CONTAINERS[$PROFILE_NAME]})
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CONTAINER_DELAY=${PROFILE_CONTAINER_DELAY[$PROFILE_NAME]:-$CONTAINER_DELAY}
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RETRY_COUNT=${PROFILE_RETRY_COUNT[$PROFILE_NAME]:-$RETRY_COUNT}
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SLEEP=${PROFILE_SLEEP[$PROFILE_NAME]:-$SLEEP}
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EXCLUDE_DIRS=(${PROFILE_EXCLUDE_DIRS[$PROFILE_NAME]:-${EXCLUDE_DIRS[@]}})
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echo "Detected profile: $PROFILE_NAME"
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log "Profile settings: MAX_RSYNC_PROCS=$MAX_RSYNC_PROCS, BW_LIMIT=$BW_LIMIT, CONTAINERS=${CRITICAL_CONTAINER_NAMES[*]}, EXCLUDES=${EXCLUDE_DIRS[*]}, DRY_RUN=$DRY_RUN"
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# ----------------------------- Rsync Wait -----------------------------
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wait_for_rsync() {
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for attempt in $(seq 1 "$RETRY_COUNT"); do
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RSYNC_COUNT=$(pgrep -fc "rsync.*root@${REMOTE_SERVER}" || true)
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log "Current rsync processes: $RSYNC_COUNT"
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if [ "$RSYNC_COUNT" -ge "$MAX_RSYNC_PROCS" ]; then
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echo "Waiting for available rsync slot ($RSYNC_COUNT active)..."
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sleep "$SLEEP"
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else
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return 0
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fi
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done
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echo "Too many rsync processes, exiting."
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exit 1
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}
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# ----------------------------- Main -----------------------------
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main() {
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echo "Starting sync: $DIRECTORY → $REMOTE_SERVER"
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wait_for_rsync
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stop_containers
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get_rsync_opts
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for ex in "${EXCLUDE_DIRS[@]}"; do RSYNC_OPTS+=(--exclude="$ex"); done
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[ "$DRY_RUN" = true ] && RSYNC_OPTS+=("--dry-run")
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log "Rsync options: ${RSYNC_OPTS[*]}"
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for attempt in $(seq 1 "$RETRY_COUNT"); do
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echo "Rsync attempt $attempt/$RETRY_COUNT..."
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if rsync "${RSYNC_OPTS[@]}" -e "ssh -i \"$SSH_KEY\" -T -o Compression=no -o IPQoS=throughput" \
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"$DIRECTORY" "root@${REMOTE_SERVER}:$DIRECTORY"; then
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echo "Rsync completed successfully."
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break
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else
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echo "Rsync attempt $attempt failed."
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if [ "$attempt" -lt "$RETRY_COUNT" ]; then
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echo "Retrying in $SLEEP seconds..."
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sleep "$SLEEP"
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else
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echo "All $RETRY_COUNT rsync attempts failed."
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start_containers
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exit 1
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fi
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fi
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done
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start_containers
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echo "Sync complete."
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log "[$LOCAL_SERVER_NAME] Sync finished for $DIRECTORY → $REMOTE_SERVER"
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}
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main |