feat(docker-stack): add archmirror stack

docker/stacks/archmirror/rsync/sync.sh

@@ -0,0 +1,32 @@
+#!/bin/sh
+set -e
+
+TARGET_DIR="/archlinux"
+MAX_RETRIES=3
+
+log() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" >&2
+}
+
+if [ -z "$MIRROR_URL" ]; then
+    log "ERROR: MIRROR_URL not set"
+    exit 1
+fi
+
+mkdir -p "$TARGET_DIR"
+for i in $(seq 1 $MAX_RETRIES); do
+    log "Sync attempt $i/$MAX_RETRIES from $MIRROR_URL"
+    
+    if rsync --timeout=7200 \
+             -rlptH --safe-links --delete-delay --delay-updates \
+             ${RSYNC_EXTRA_OPTIONS:-} \
+             "$MIRROR_URL/" "$TARGET_DIR/"; then
+        log "Sync completed successfully"
+        exit 0
+    fi
+    
+    [ $i -lt $MAX_RETRIES ] && sleep $((i * 300))
+done
+
+log "All sync attempts failed"
+exit 1