Merge 94a58fb into 1a8eaf8

patroni/scripts/restore_example.sh

@@ -0,0 +1,71 @@
+#!/bin/bash
+
+function usage()
+{
+    cat <<__EOT__
+Usage: $0 --scope=SCOPE --datadir=DATADIR --backup_directory=BACKUPDIR
+__EOT__
+}
+
+optspec=":-:"
+while getopts "$optspec" optchar; do
+    case "${optchar}" in
+        -)
+            case "${OPTARG}" in
+                help)
+                    usage
+                    exit 0
+                    ;;
+                scope)
+                    PATRONI_SCOPE="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                scope=*)
+                    PATRONI_SCOPE="${OPTARG#*=}"
+                    ;;
+                datadir)
+                    PGDATA="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                datadir=*)
+                    PGDATA="${OPTARG#*=}"
+                    ;;
+                backup_directory)
+                    BACKUPDIR="${!OPTIND}"; OPTIND=$(( $OPTIND + 1 ))
+                    ;;
+                backup_directory=*)
+                    BACKUPDIR="${OPTARG#*=}"
+                    ;;
+                *)
+                    true
+                    ;;
+            esac;;
+        *)
+            if [ "$OPTERR" != 1 ] || [ "${optspec:0:1}" = ":" ]; then
+                echo "Non-option argument: '-${OPTARG}'" >&2
+                usage
+                exit 1
+            fi
+            ;;
+    esac
+done
+
+
+function die()
+{
+    echo "$1"
+    exit 1
+}
+
+[[ -z ${PATRONI_SCOPE} ]] && usage && exit 1
+[[ -z ${PGDATA} ]] && usage && exit 1
+[[ -z ${BACKUPDIR} ]] && usage && exit 1
+
+[[ -d "${PGDATA}" ]] && die "Will not overwrite existing PGDATA directory, stopping example restore"
+
+LATESTBACKUP="$(ls -tr "${BACKUPDIR}/${PATRONI_SCOPE}/basebackup_"*.tar.gz | tail -n 1)"
+[[ ! -f "${LATESTBACKUP}" ]] && die "Can not find the backup, stopping example restore"
+
+mkdir -p "${PGDATA}"
+tar xzfp "${LATESTBACKUP}" -C "${PGDATA}"
+chmod 0700 "${PGDATA}"
+
+echo "Restored ${LATESTBACKUP} into PGDATA=${PGDATA}"

postgres2.yml

@@ -72,6 +72,7 @@ postgresql:
   create_replica_method:
     - basebackup
 #   - wal_e
+#   - restore_example
 # commented-out example for wal-e provisioning
   #wal_e:
     #command: /patroni/scripts/wale_restore.py
@@ -80,6 +81,11 @@ postgresql:
     #threshold_backup_size_percentage: 30
     #retries: 2
     #use_iam: 1
+# commented-out example for restore from file
+  #restore_example:
+    #command: patroni/scripts/restore_example.sh
+    #no_master: true
+    #backup_directory: /tmp/backup/
   #recovery_conf:
     #restore_command: envdir /etc/wal-e.d/env wal-e wal-fetch "%f" "%p" -p 1
   recovery_conf: