fix: attempt pgbackup

kubernetes/apps/database/cloudnative-pg/cluster/pgdump/scripts/list_dbs.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+set -o nounset
+set -o errexit
+
+# File to store the list of databases
+OUTPUT_FILE="/config/db_list"
+
+# Export PG password to avoid password prompt
+export PGPASSWORD="$POSTGRES_PASSWORD"
+
+# Convert EXCLUDE_DBS to an array
+IFS=' ' read -r -a EXCLUDE_ARRAY <<< "$EXCLUDE_DBS"
+
+# List all databases and filter out the excluded ones
+psql -h $POSTGRES_HOST -p $POSTGRES_PORT -U $POSTGRES_USER -lqt | \
+cut -d \| -f 1 | \
+sed 's/^[[:space:]]*//;s/[[:space:]]*$//' | \
+while read -r dbname; do
+    skip=false
+    for exclude in "${EXCLUDE_ARRAY[@]}"; do
+        if [[ "$dbname" == "$exclude" ]]; then
+            skip=true
+            break
+        fi
+    done
+    if [[ "$skip" == false ]]; then
+        echo "$dbname"
+    fi
+done > "$OUTPUT_FILE"
+
+# Unset PG password
+unset PGPASSWORD
+
+echo "Database list saved to $OUTPUT_FILE"
+
+cat $OUTPUT_FILE