diff --git a/sk1/backup.sh b/sk1/backup.sh
new file mode 100755
index 0000000..c3ddcd4
--- /dev/null
+++ b/sk1/backup.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+set -euo pipefail
+
+# ==========================================
+# LOGGER — source the shared library
+# ==========================================
+# shellcheck source=lib/logger.sh
+source "$(dirname "$0")/lib/logger.sh" "backup"
+trap 'log_error "Failure at line $LINENO. See $LOG_FILE"' ERR
+
+# ==========================================
+# VARIABLES
+# ==========================================
+NAMESPACE="vigimeteo"
+DB_LABEL="app=vigimeteo-db"
+DB_USER_OVERRIDE="${DB_USER:-postgres}"
+DB_NAME="postgres"
+OUTPUT_DIR="$(dirname "$0")/sql"
+TIMESTAMP="$(date +%Y%m%d_%H%M%S)"
+OUTPUT_FILE="${OUTPUT_DIR}/backup_${TIMESTAMP}.sql"
+
+# ==========================================
+log_info "========================================"
+log_info "  Vigimétéo – Database Backup"
+log_info "  Full log : $LOG_FILE"
+log_info "========================================"
+
+# ==========================================
+log_info "STEP 1 — Locate the PostgreSQL pod"
+# ==========================================
+
+log_debug "Looking for a running pod with label '$DB_LABEL' in namespace '$NAMESPACE'..."
+
+POD=$(kubectl get pod \
+  --namespace "$NAMESPACE" \
+  --selector "$DB_LABEL" \
+  --field-selector="status.phase=Running" \
+  -o jsonpath='{.items[0].metadata.name}' 2>/dev/null || true)
+
+if [ -z "$POD" ]; then
+  log_error "No running pod found with label '$DB_LABEL' in namespace '$NAMESPACE'."
+  log_error "Is the cluster running?  kubectl get pods -n $NAMESPACE"
+  exit 1
+fi
+
+log_info "Target pod: $POD"
+
+# ==========================================
+log_info "STEP 2 — Verify database readiness"
+# ==========================================
+
+log_debug "Checking pg_isready on pod '$POD'..."
+if ! kubectl exec --namespace "$NAMESPACE" "$POD" -- \
+    pg_isready -U "$DB_USER_OVERRIDE" -d "$DB_NAME" -q; then
+  log_error "PostgreSQL is not ready on pod '$POD'. Aborting backup."
+  exit 1
+fi
+log_info "PostgreSQL is ready."
+
+# ==========================================
+log_info "STEP 3 — Run pg_dump and save to $OUTPUT_FILE"
+# ==========================================
+
+mkdir -p "$OUTPUT_DIR"
+
+log_info "Dumping database '$DB_NAME' (user: $DB_USER_OVERRIDE)..."
+kubectl exec --namespace "$NAMESPACE" "$POD" -- \
+  pg_dump \
+    --username "$DB_USER_OVERRIDE" \
+    --dbname "$DB_NAME" \
+    --clean \
+    --if-exists \
+    --no-password \
+  > "$OUTPUT_FILE"
+
+# Verify the file was produced and is non-empty
+if [ ! -s "$OUTPUT_FILE" ]; then
+  log_error "Backup file '$OUTPUT_FILE' is empty or was not created."
+  rm -f "$OUTPUT_FILE"
+  exit 1
+fi
+
+FILESIZE=$(du -sh "$OUTPUT_FILE" | cut -f1)
+log_info "Backup written: $OUTPUT_FILE ($FILESIZE)"
+
+# ==========================================
+log_info "========================================"
+log_info "BACKUP COMPLETE"
+log_info "  File : $OUTPUT_FILE"
+log_info "  Size : $FILESIZE"
+log_info "  Log  : $LOG_FILE"
+log_info ""
+log_info "To restore:"
+log_info "  bash backup.sh                   # create a new backup first"
+log_info "  kubectl exec -i -n $NAMESPACE $POD -- \\"
+log_info "    psql -U $DB_USER_OVERRIDE -d $DB_NAME < $OUTPUT_FILE"
+log_info "========================================"
\ No newline at end of file
diff --git a/sk1/lib/logger.sh b/sk1/lib/logger.sh
index 1774c40..e8465fd 100755
--- a/sk1/lib/logger.sh
+++ b/sk1/lib/logger.sh
@@ -20,24 +20,24 @@ LOG_FILE="$(dirname "$0")/logs/${_LOG_PREFIX}-$(date +%Y%m%d-%H%M%S).log"
 LOG_LEVEL="${LOG_LEVEL:-INFO}"
 
 _log() {
-  local level="$1"; shift
-  local message="$*"
-  local timestamp; timestamp="$(date '+%Y-%m-%d %H:%M:%S')"
-  local line="[$timestamp] [$level] $message"
+    local level="$1"; shift
+    local message="$*"
+    local timestamp; timestamp="$(date '+%Y-%m-%d %H:%M:%S')"
+    local line="[$timestamp] [$level] $message"
 
-  case "$level" in
-    INFO)  echo -e "\033[0;32m${line}\033[0m" ;;
-    WARN)  echo -e "\033[0;33m${line}\033[0m" ;;
-    ERROR) echo -e "\033[0;31m${line}\033[0m" ;;
-    DEBUG)
-      [ "$LOG_LEVEL" = "DEBUG" ] && echo -e "\033[0;36m${line}\033[0m" || return 0
-      ;;
-  esac
+    case "$level" in
+        INFO)  printf "\033[0;32m%s\033[0m\n" "$line" ;;
+        WARN)  printf "\033[0;33m%s\033[0m\n" "$line" ;;
+        ERROR) printf "\033[0;31m%s\033[0m\n" "$line" ;;
+        DEBUG)
+            [ "$LOG_LEVEL" = "DEBUG" ] && printf "\033[0;36m%s\033[0m\n" "$line" || return 0
+            ;;
+    esac
 
-  echo "$line" >> "$LOG_FILE"
+    printf "%s\n" "$line" >> "$LOG_FILE"
 }
 
 log_info()  { _log INFO  "$@"; }
 log_warn()  { _log WARN  "$@"; }
 log_error() { _log ERROR "$@"; }
-log_debug() { _log DEBUG "$@"; }
+log_debug() { _log DEBUG "$@"; }
\ No newline at end of file