From c816d5e72e701bf856b57e6268a356da2be35bc5 Mon Sep 17 00:00:00 2001
From: mazano <addloe@gmail.com>
Date: Mon, 4 Sep 2023 21:56:45 +0200
Subject: [PATCH] fix #439 (#445)

* fix #439

* add promote class
---
 README.md                                     |   2 +-
 commit-and-deploy.sh                          |  39 --
 requirements.txt                              |   1 -
 scenario_tests/collations/docker-compose.yml  |   8 +-
 .../datadir_init/docker-compose-gs.yml        |   2 +-
 .../datadir_init/docker-compose.yml           |   2 +-
 scenario_tests/extensions/docker-compose.yml  |   2 +-
 .../init_scripts/docker-compose.yml           |   2 +-
 .../logical_replication/docker-compose-gs.yml |   2 +-
 .../logical_replication/docker-compose.yml    |   2 +-
 .../multiple_databases/docker-compose.yml     |   2 +-
 .../docker-compose-gs-promote.yml             |  62 +++
 .../docker-compose-gs.yml                     |   2 +-
 .../docker-compose-root-promote.yml           |  55 ++
 .../streaming_replication/docker-compose.yml  |   2 +-
 .../scripts/setup-master.sql                  |  11 +
 scenario_tests/streaming_replication/test.sh  |  67 ++-
 .../tests/test_node_promotion.sh              |  13 +
 .../tests/test_replication.py                 |  23 +
 scenario_tests/utils/utils.py                 |  19 +-
 scripts/docker-entrypoint.sh                  |  13 +-
 scripts/env-data.sh                           |  23 +-
 scripts/locale.gen                            | 484 ------------------
 scripts/setup-conf.sh                         |   4 +-
 scripts/setup-database.sh                     |   2 +-
 scripts/setup-replication.sh                  |  56 +-
 26 files changed, 321 insertions(+), 579 deletions(-)
 delete mode 100755 commit-and-deploy.sh
 delete mode 100644 requirements.txt
 create mode 100644 scenario_tests/streaming_replication/docker-compose-gs-promote.yml
 create mode 100644 scenario_tests/streaming_replication/docker-compose-root-promote.yml
 create mode 100644 scenario_tests/streaming_replication/scripts/setup-master.sql
 create mode 100644 scenario_tests/streaming_replication/tests/test_node_promotion.sh
 delete mode 100644 scripts/locale.gen

diff --git a/README.md b/README.md
index a67a2c0..58fd8d3 100644
--- a/README.md
+++ b/README.md
@@ -730,7 +730,7 @@ Slave settings:
 - **DESTROY_DATABASE_ON_RESTART**: Default is `True`. Set to 'False' to prevent this behavior. A
   replicant will always destroy its current database on restart, because it will try to sync again
   from `master` and avoid inconsistencies.
-- **PROMOTE_MASTER**: Default none. If set to any value then the current replicant
+- **PROMOTE_MASTER**: Default false. If set to `true` then the current replicant
   will be promoted to master. In some cases when the `master` container has failed, we might want
   to use our `replicant` as `master` for a while. However, the promoted replicant will break
   consistencies and is not able to revert to replicant anymore, unless it is destroyed and
diff --git a/commit-and-deploy.sh b/commit-and-deploy.sh
deleted file mode 100755
index 4fa5766..0000000
--- a/commit-and-deploy.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/bash
-# Commit and redeploy the user map container
-#
-if [ $# -ne 1 ]; then
-    echo "Commit and then redeploy the user_map container."
-    echo "Usage:"
-    echo "$0 <version>"
-    echo "e.g.:"
-    echo "$0 1.6"
-    echo "Will commit the current state of the container as version 1.6"
-    echo "and then redeploy it."
-    exit 1
-fi
-VERSION=$1
-HOST_DATA_DIR=/var/docker-data/postgres-data
-PGUSER=qgis
-PGPASS=qgis
-
-IDFILE=/home/timlinux/postgis-current-container.id
-ID=`cat $IDFILE`
-docker commit $ID qgis/postgis:$VERSION -run='{"Cmd": ["/start.sh"], "PortSpecs": ["5432"], "Hostname": "postgis"}' -author="Tim Sutton <tim@linfiniti.com>"
-docker kill $ID
-docker rm $ID
-rm $IDFILE
-if [ ! -d $HOST_DATA_DIR ]
-then
-    mkdir $HOST_DATA_DIR
-fi
-CMD="docker run -cidfile="$IDFILE" -name="postgis" -e POSTGRES_USER=$PGUSER -e POSTGRES_PASS=$PGPASS -d -v $HOST_DATA_DIR:/var/lib/postgresql -t qgis/postgis:$VERSION /start.sh"
-echo 'Running:'
-echo $CMD
-eval $CMD
-NEWID=`cat $IDFILE`
-echo "Postgis has been committed as $1 and redeployed as $NEWID"
-docker ps -a | grep $NEWID
-echo "If thhere was no pre-existing database, you can access this using"
-IPADDRESS=`docker inspect postgis | grep IPAddress | grep -o '[0-9\.]*'`
-echo "psql -l -p 5432 -h $IPADDRESS -U $PGUSER"
-echo "and password $PGPASS"
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index d765ccc..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1 +0,0 @@
-docker-compose==1.28
\ No newline at end of file
diff --git a/scenario_tests/collations/docker-compose.yml b/scenario_tests/collations/docker-compose.yml
index 9e4e57e..2fb399d 100644
--- a/scenario_tests/collations/docker-compose.yml
+++ b/scenario_tests/collations/docker-compose.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-data-dir:
@@ -11,8 +11,6 @@ services:
   pg:
     image: 'kartoza/postgis:${TAG:-manual-build}'
     restart: 'always'
-    # You can optionally mount to volume, to play with the persistence and
-    # observe how the node will behave after restarts.
     volumes:
       - pg-data-dir:/var/lib/postgresql
       - ./tests:/tests
@@ -35,8 +33,6 @@ services:
   pg-new:
     image: 'kartoza/postgis:${TAG:-manual-build}'
     restart: 'always'
-    # You can optionally mount to volume, to play with the persistence and
-    # observe how the node will behave after restarts.
     volumes:
       - new-pg-data-dir:/opt/data/postgis
       - ./tests:/tests
@@ -62,8 +58,6 @@ services:
   pg-gosu:
     image: 'kartoza/postgis:${TAG:-manual-build}'
     restart: 'always'
-    # You can optionally mount to volume, to play with the persistence and
-    # observe how the node will behave after restarts.
     volumes:
       - pg-data-dir-gs:/var/lib/postgresql
       - ./tests:/tests
diff --git a/scenario_tests/datadir_init/docker-compose-gs.yml b/scenario_tests/datadir_init/docker-compose-gs.yml
index c77d83e..bb71d70 100644
--- a/scenario_tests/datadir_init/docker-compose-gs.yml
+++ b/scenario_tests/datadir_init/docker-compose-gs.yml
@@ -1,4 +1,4 @@
-version: '2.1'
+version: '3.9'
 volumes:
   default-pg-data-dir:
   new-pg-data-dir:
diff --git a/scenario_tests/datadir_init/docker-compose.yml b/scenario_tests/datadir_init/docker-compose.yml
index 732721e..015ede9 100644
--- a/scenario_tests/datadir_init/docker-compose.yml
+++ b/scenario_tests/datadir_init/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '2.1'
+version: '3.9'
 volumes:
   default-pg-data-dir:
   new-pg-data-dir:
diff --git a/scenario_tests/extensions/docker-compose.yml b/scenario_tests/extensions/docker-compose.yml
index 3a24709..219544e 100644
--- a/scenario_tests/extensions/docker-compose.yml
+++ b/scenario_tests/extensions/docker-compose.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 services:
   pg:
diff --git a/scenario_tests/init_scripts/docker-compose.yml b/scenario_tests/init_scripts/docker-compose.yml
index 47ed3b2..d462685 100644
--- a/scenario_tests/init_scripts/docker-compose.yml
+++ b/scenario_tests/init_scripts/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '2.1'
+version: '3.9'
 volumes:
   default-pg-data-dir-md5:
   new-pg-data-dir:
diff --git a/scenario_tests/logical_replication/docker-compose-gs.yml b/scenario_tests/logical_replication/docker-compose-gs.yml
index 17d24f3..835fc13 100644
--- a/scenario_tests/logical_replication/docker-compose-gs.yml
+++ b/scenario_tests/logical_replication/docker-compose-gs.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-publisher-data-dir:
diff --git a/scenario_tests/logical_replication/docker-compose.yml b/scenario_tests/logical_replication/docker-compose.yml
index 7b9f56a..aad31dd 100644
--- a/scenario_tests/logical_replication/docker-compose.yml
+++ b/scenario_tests/logical_replication/docker-compose.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-publisher-data-dir:
diff --git a/scenario_tests/multiple_databases/docker-compose.yml b/scenario_tests/multiple_databases/docker-compose.yml
index fdce20f..1c483b2 100644
--- a/scenario_tests/multiple_databases/docker-compose.yml
+++ b/scenario_tests/multiple_databases/docker-compose.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-db-data-dir:
diff --git a/scenario_tests/streaming_replication/docker-compose-gs-promote.yml b/scenario_tests/streaming_replication/docker-compose-gs-promote.yml
new file mode 100644
index 0000000..494a3ab
--- /dev/null
+++ b/scenario_tests/streaming_replication/docker-compose-gs-promote.yml
@@ -0,0 +1,62 @@
+
+version: '2.1'
+
+volumes:
+  pg-master-data-dir:
+  pg-node-data-dir:
+
+services:
+  pg-master:
+    image: 'kartoza/postgis:${TAG:-manual-build}'
+    restart: 'always'
+    
+    volumes:
+      - pg-master-data-dir:/var/lib/postgresql
+      - ./tests:/tests
+      - ../utils:/lib/utils
+      - ./scripts/setup-master.sql:/docker-entrypoint-initdb.d/setup-master.sql
+    environment:
+      
+      ALLOW_IP_RANGE: '0.0.0.0/0'
+
+      # We can specify optional credentials
+      POSTGRES_PASS: 'docker'
+      REPLICATION_USER: 'replicator'
+      REPLICATION_PASS: 'replicator'
+      REPLICATION: 'true'
+      RUN_AS_ROOT: false
+    healthcheck:
+      interval: 60s
+      timeout: 30s
+      retries: 3
+      test: "pg_isready"
+
+  pg-node:
+    image: 'kartoza/postgis:${TAG:-manual-build}'
+    restart: 'always'
+    
+    volumes:
+      - pg-node-data-dir:/var/lib/postgresql
+      - ./tests:/tests
+      - ../utils:/lib/utils
+
+    environment:
+      
+      ALLOW_IP_RANGE: '0.0.0.0/0'
+      POSTGRES_PASS: 'docker'
+      REPLICATE_FROM: 'pg-master'
+      REPLICATION: 'true'
+      RUN_AS_ROOT: false
+      PROMOTE_MASTER: false
+      DESTROY_DATABASE_ON_RESTART: 'True'
+      REPLICATION_USER: 'replicator'
+      REPLICATION_PASS: 'replicator'
+    depends_on:
+        pg-master:
+          condition: service_healthy
+    
+    healthcheck:
+      interval: 60s
+      timeout: 30s
+      retries: 3
+      test: "pg_isready"
diff --git a/scenario_tests/streaming_replication/docker-compose-gs.yml b/scenario_tests/streaming_replication/docker-compose-gs.yml
index 537153a..431a3d5 100644
--- a/scenario_tests/streaming_replication/docker-compose-gs.yml
+++ b/scenario_tests/streaming_replication/docker-compose-gs.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-master-data-dir:
diff --git a/scenario_tests/streaming_replication/docker-compose-root-promote.yml b/scenario_tests/streaming_replication/docker-compose-root-promote.yml
new file mode 100644
index 0000000..470d3ee
--- /dev/null
+++ b/scenario_tests/streaming_replication/docker-compose-root-promote.yml
@@ -0,0 +1,55 @@
+
+version: '2.1'
+
+volumes:
+  pg-master-data-dir:
+  pg-node-data-dir:
+
+services:
+  pg-master:
+    image: 'kartoza/postgis:${TAG:-manual-build}'
+    restart: 'always'
+    volumes:
+      - pg-master-data-dir:/var/lib/postgresql
+      - ./tests:/tests
+      - ../utils:/lib/utils
+      - ./scripts/setup-master.sql:/docker-entrypoint-initdb.d/setup-master.sql 
+    environment:
+      ALLOW_IP_RANGE: '0.0.0.0/0'
+      # We can specify optional credentials
+      POSTGRES_PASS: 'docker'
+      REPLICATION_USER: 'replicator'
+      REPLICATION_PASS: 'replicator'
+      REPLICATION: 'true'
+      RUN_AS_ROOT: true
+    healthcheck:
+      interval: 60s
+      timeout: 30s
+      retries: 3
+      test: "pg_isready"
+
+  pg-node:
+    image: 'kartoza/postgis:${TAG:-manual-build}'
+    restart: 'always'
+    volumes:
+      - pg-node-data-dir:/var/lib/postgresql
+      - ./tests:/tests
+      - ../utils:/lib/utils
+    environment:
+      ALLOW_IP_RANGE: '0.0.0.0/0'
+      POSTGRES_PASS: 'docker'
+      REPLICATE_FROM: 'pg-master'
+      REPLICATION: 'true'
+      RUN_AS_ROOT: true
+      PROMOTE_MASTER: false
+      DESTROY_DATABASE_ON_RESTART: 'True'
+      REPLICATION_USER: 'replicator'
+      REPLICATION_PASS: 'replicator'
+    depends_on:
+        pg-master:
+          condition: service_healthy
+    healthcheck:
+      interval: 60s
+      timeout: 30s
+      retries: 3
+      test: "pg_isready"
diff --git a/scenario_tests/streaming_replication/docker-compose.yml b/scenario_tests/streaming_replication/docker-compose.yml
index b15fe07..f483b46 100644
--- a/scenario_tests/streaming_replication/docker-compose.yml
+++ b/scenario_tests/streaming_replication/docker-compose.yml
@@ -1,5 +1,5 @@
 
-version: '2.1'
+version: '3.9'
 
 volumes:
   pg-master-data-dir:
diff --git a/scenario_tests/streaming_replication/scripts/setup-master.sql b/scenario_tests/streaming_replication/scripts/setup-master.sql
new file mode 100644
index 0000000..adbbde0
--- /dev/null
+++ b/scenario_tests/streaming_replication/scripts/setup-master.sql
@@ -0,0 +1,11 @@
+-- Create a table
+CREATE TABLE IF NOT EXISTS sweets
+    (
+        id SERIAL,
+        name TEXT,
+        price DECIMAL,
+        CONSTRAINT sweets_pkey PRIMARY KEY (id)
+    );
+
+-- Inserts records into the table
+INSERT INTO sweets (name, price) VALUES ('strawberry', 4.50), ('Coffee', 6.20), ('lollipop', 3.80);
diff --git a/scenario_tests/streaming_replication/test.sh b/scenario_tests/streaming_replication/test.sh
index fc3f746..200638f 100755
--- a/scenario_tests/streaming_replication/test.sh
+++ b/scenario_tests/streaming_replication/test.sh
@@ -11,8 +11,9 @@ if [[ $(dpkg -l | grep "docker-compose") > /dev/null ]];then
     VERSION='docker compose'
 fi
 
-
+####
 # Run service as root user
+####
 ${VERSION} up -d
 
 if [[ -n "${PRINT_TEST_LOGS}" ]]; then
@@ -39,7 +40,9 @@ ${VERSION} exec -T pg-node /bin/bash /tests/test_node.sh
 
 ${VERSION} down -v
 
+####
 # Run service as none root
+####
 ${VERSION} -f docker-compose-gs.yml up -d
 
 if [[ -n "${PRINT_TEST_LOGS}" ]]; then
@@ -64,4 +67,64 @@ done;
 # Execute tests
 ${VERSION} -f docker-compose-gs.yml exec -T pg-node /bin/bash /tests/test_node.sh
 
-${VERSION} -f docker-compose-gs.yml down -v
\ No newline at end of file
+${VERSION} -f docker-compose-gs.yml down -v
+
+
+####
+# Run service as root user for node promotion
+####
+${VERSION} -f docker-compose-root-promote.yml up -d
+
+if [[ -n "${PRINT_TEST_LOGS}" ]]; then
+  ${VERSION} -f docker-compose-root-promote.yml logs -f &
+fi
+
+sleep 30
+
+# Update env variable
+sed -i 's/\(PROMOTE_MASTER: \)false/\1true/'  docker-compose-root-promote.yml
+
+# Bring up node with option to promote node
+
+${VERSION} -f docker-compose-root-promote.yml up -d pg-node
+
+# Preparing node cluster
+until ${VERSION} -f docker-compose-root-promote.yml exec -T pg-node pg_isready; do
+  sleep 30
+done;
+
+# Execute tests
+${VERSION} -f docker-compose-root-promote.yml exec -T pg-node /bin/bash /tests/test_node_promotion.sh
+
+${VERSION} -f docker-compose-root-promote.yml down -v
+sed -i 's/\(PROMOTE_MASTER: \)true/\1false/'  docker-compose-root-promote.yml
+
+####
+# Run service as none root user for node promotion
+####
+${VERSION} -f docker-compose-gs-promote.yml up -d
+
+if [[ -n "${PRINT_TEST_LOGS}" ]]; then
+  ${VERSION} -f docker-compose-gs-promote.yml logs -f &
+fi
+
+sleep 30
+
+# Update env variable
+sed -i 's/\(PROMOTE_MASTER: \)false/\1true/'  docker-compose-gs-promote.yml
+
+# Bring up node with option to promote node
+
+${VERSION} -f docker-compose-gs-promote.yml up -d pg-node
+
+# Preparing node cluster
+until ${VERSION} -f docker-compose-gs-promote.yml exec -T pg-node pg_isready; do
+  sleep 30
+done;
+
+# Execute tests
+${VERSION} -f docker-compose-gs-promote.yml exec -T pg-node /bin/bash /tests/test_node_promotion.sh
+
+${VERSION} -f docker-compose-gs-promote.yml down -v
+sed -i 's/\(PROMOTE_MASTER: \)true/\1false/'  docker-compose-gs-promote.yml
+
diff --git a/scenario_tests/streaming_replication/tests/test_node_promotion.sh b/scenario_tests/streaming_replication/tests/test_node_promotion.sh
new file mode 100644
index 0000000..47c3d3b
--- /dev/null
+++ b/scenario_tests/streaming_replication/tests/test_node_promotion.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+set -e
+
+source /scripts/env-data.sh
+
+# execute tests
+pushd /tests
+
+PGHOST=localhost \
+PGDATABASE=gis \
+PYTHONPATH=/lib \
+  python3 -m unittest -v test_replication.TestReplicationPromotion
diff --git a/scenario_tests/streaming_replication/tests/test_replication.py b/scenario_tests/streaming_replication/tests/test_replication.py
index 06bbf62..8c3fd42 100644
--- a/scenario_tests/streaming_replication/tests/test_replication.py
+++ b/scenario_tests/streaming_replication/tests/test_replication.py
@@ -56,4 +56,27 @@ class TestReplicationNode(unittest.TestCase):
 
             rows = c.fetchall()
             self.assertEqual(len(rows), 1)
+class TestReplicationPromotion(unittest.TestCase):
+
+    def setUp(self):
+        self.db = DBConnection()
+
+    def test_read_data(self):
+        # create new table
+        self.db.conn.autocommit = True
+        with self.db.cursor() as c:
+            c.execute(
+                """
+                INSERT INTO sweets (name ,price) values ('Test', 10);
+                """
+            )
+            c.execute(
+                """
+                SELECT * FROM sweets where name = 'Test';
+                """
+            )
+
+            rows = c.fetchone()
+            self.assertEqual(len(rows), 3)
+
 
diff --git a/scenario_tests/utils/utils.py b/scenario_tests/utils/utils.py
index 1bae017..91d1172 100644
--- a/scenario_tests/utils/utils.py
+++ b/scenario_tests/utils/utils.py
@@ -10,17 +10,18 @@ class DBConnection:
 
     def table_exists(self, table_name, table_schema='public'):
         cur = self.conn.cursor()
-        query = (
-            'select '
-            'exists('
-            'select 1 '
-            'from information_schema.tables '
-            'where table_name = %s and table_schema = %s)')
-        cur.execute(query, (table_name, table_schema))
+        query = '''select exists (select 1 from information_schema.tables \
+                    where table_name = %s and table_schema = %s)''' % (table_name, table_schema)
+
+        cur.execute(query)
         try:
             row = cur.fetchone()
-            return row[0]
-        except:
+            if row is not None:
+                return row[0]
+            else:
+                return None
+        except Exception as e:
+            print(f"An error occurred: {e}")
             return False
 
     @staticmethod
diff --git a/scripts/docker-entrypoint.sh b/scripts/docker-entrypoint.sh
index ea71e4c..870f47f 100755
--- a/scripts/docker-entrypoint.sh
+++ b/scripts/docker-entrypoint.sh
@@ -74,8 +74,17 @@ else
     if [[ ${RUN_AS_ROOT} =~ [Ff][Aa][Ll][Ss][Ee] ]];then
       non_root_permission "${USER_NAME}" "${DB_GROUP_NAME}"
     else
-      chown -R postgres:postgres "${DATADIR}" "${WAL_ARCHIVE}"
-      chmod -R 750 "${DATADIR}" "${WAL_ARCHIVE}"
+      dir_ownership=("${DATADIR}" "${WAL_ARCHIVE}")
+      for directory in "${dir_ownership[@]}"; do
+        if [[ $(stat -c '%U' "${directory}") != "postgres" ]] && [[ $(stat -c '%G' "${directory}") != "postgres" ]];then
+          chown -R postgres:postgres "${directory}"
+        fi
+      done
+      for directory in "${dir_ownership[@]}"; do
+        if [ "$(stat -c %a "$directory")" != "750" ]; then
+            chmod -R 750 "$directory"
+        fi
+      done
     fi
     source /scripts/setup-replication.sh
 fi
diff --git a/scripts/env-data.sh b/scripts/env-data.sh
index 4061837..ecc6b45 100644
--- a/scripts/env-data.sh
+++ b/scripts/env-data.sh
@@ -20,9 +20,10 @@ SQLDIR="/usr/share/postgresql/${POSTGRES_MAJOR_VERSION}/contrib/postgis-${POSTGI
 EXTDIR="/usr/share/postgresql/${POSTGRES_MAJOR_VERSION}/extension/"
 SETVARS="POSTGIS_ENABLE_OUTDB_RASTERS=1 POSTGIS_GDAL_ENABLED_DRIVERS=ENABLE_ALL"
 LOCALONLY="-c listen_addresses='127.0.0.1'"
-PG_BASEBACKUP="/usr/bin/pg_basebackup"
+PG_BASEBACKUP="/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_basebackup"
 PROMOTE_FILE="/tmp/pg_promote_master"
 NODE_PROMOTION="/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_ctl"
+DATA_DIR_CONTROL="/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_controldata"
 PGSTAT_TMP="/var/run/postgresql/"
 PG_PID="/var/run/postgresql/${POSTGRES_MAJOR_VERSION}-main.pid"
 
@@ -34,7 +35,7 @@ PG_PID="/var/run/postgresql/${POSTGRES_MAJOR_VERSION}-main.pid"
 #    ie: file_env 'XYZ_DB_PASSWORD' 'example'
 # (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
 #  "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
-function file_env {
+function file_env() {
 	local var="$1"
 	local fileVar="${var}_FILE"
 	local def="${2:-}"
@@ -65,7 +66,7 @@ function boolean() {
 
 file_env 'POSTGRES_PASS'
 file_env 'POSTGRES_USER'
-file_env 'POSTGRES_DBNAME'
+
 
 function create_dir() {
 DATA_PATH=$1
@@ -211,7 +212,7 @@ fi
 
 if [ -z "${ARCHIVE_CLEANUP_COMMAND}" ]; then
   # https://www.postgresql.org/docs/12/runtime-config-wal.html
-  ARCHIVE_CLEANUP_COMMAND="pg_archivecleanup ${WAL_ARCHIVE} %r"
+  ARCHIVE_CLEANUP_COMMAND="/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_archivecleanup ${WAL_ARCHIVE} %r"
 fi
 
 if [ -z "${WAL_LEVEL}" ]; then
@@ -401,6 +402,17 @@ if [ -z "${TIMEZONE}" ]; then
   TIMEZONE='Etc/UTC'
 fi
 
+if [ -z "${KERNEL_SHMMAX}" ]; then
+  KERNEL_SHMMAX=543252480
+fi
+
+if [ -z "${KERNEL_SHMALL}" ]; then
+  KERNEL_SHMALL=2097152
+fi
+
+if [ -z "${PROMOTE_MASTER}" ]; then
+  PROMOTE_MASTER=FALSE
+fi
 # usable function definitions
 function kill_postgres {
   PID=$(cat "${PG_PID}")
@@ -587,7 +599,7 @@ function non_root_permission() {
       directory_checker "${dir_names}"
     fi
   done
-  services=("/usr/lib/postgresql/" "/etc/" "/var/run/!(secrets)" "/var/lib/" "/usr/bin" "/tmp" "/scripts")
+  services=("/usr/lib/postgresql/" "/etc/" "/var/log/postgresql" "/var/run/!(secrets)" "/var/lib/" "/usr/bin" "/tmp" "/scripts")
   for paths in "${services[@]}"; do
     directory_checker "${paths}"
   done
@@ -605,3 +617,4 @@ function role_check() {
   fi
 
 }
+
diff --git a/scripts/locale.gen b/scripts/locale.gen
deleted file mode 100644
index 3995286..0000000
--- a/scripts/locale.gen
+++ /dev/null
@@ -1,484 +0,0 @@
-# This file lists locales that you wish to have built. You can find a list
-# of valid supported locales at /usr/share/i18n/SUPPORTED, and you can add
-# user defined locales to /usr/local/share/i18n/SUPPORTED. If you change
-# this file, you need to rerun locale-gen.
-
-
-aa_DJ ISO-8859-1
-aa_DJ.UTF-8 UTF-8
-aa_ER UTF-8
-aa_ER@saaho UTF-8
-aa_ET UTF-8
-af_ZA ISO-8859-1
-af_ZA.UTF-8 UTF-8
-ak_GH UTF-8
-am_ET UTF-8
-an_ES ISO-8859-15
-an_ES.UTF-8 UTF-8
-anp_IN UTF-8
-ar_AE ISO-8859-6
-ar_AE.UTF-8 UTF-8
-ar_BH ISO-8859-6
-ar_BH.UTF-8 UTF-8
-ar_DZ ISO-8859-6
-ar_DZ.UTF-8 UTF-8
-ar_EG ISO-8859-6
-ar_EG.UTF-8 UTF-8
-ar_IN UTF-8
-ar_IQ ISO-8859-6
-ar_IQ.UTF-8 UTF-8
-ar_JO ISO-8859-6
-ar_JO.UTF-8 UTF-8
-ar_KW ISO-8859-6
-ar_KW.UTF-8 UTF-8
-ar_LB ISO-8859-6
-ar_LB.UTF-8 UTF-8
-ar_LY ISO-8859-6
-ar_LY.UTF-8 UTF-8
-ar_MA ISO-8859-6
-ar_MA.UTF-8 UTF-8
-ar_OM ISO-8859-6
-ar_OM.UTF-8 UTF-8
-ar_QA ISO-8859-6
-ar_QA.UTF-8 UTF-8
-ar_SA ISO-8859-6
-ar_SA.UTF-8 UTF-8
-ar_SD ISO-8859-6
-ar_SD.UTF-8 UTF-8
-ar_SS UTF-8
-ar_SY ISO-8859-6
-ar_SY.UTF-8 UTF-8
-ar_TN ISO-8859-6
-ar_TN.UTF-8 UTF-8
-ar_YE ISO-8859-6
-ar_YE.UTF-8 UTF-8
-as_IN UTF-8
-ast_ES ISO-8859-15
-ast_ES.UTF-8 UTF-8
-ayc_PE UTF-8
-az_AZ UTF-8
-be_BY CP1251
-be_BY.UTF-8 UTF-8
-be_BY@latin UTF-8
-bem_ZM UTF-8
-ber_DZ UTF-8
-ber_MA UTF-8
-bg_BG CP1251
-bg_BG.UTF-8 UTF-8
-bhb_IN.UTF-8 UTF-8
-bho_IN UTF-8
-bn_BD UTF-8
-bn_IN UTF-8
-bo_CN UTF-8
-bo_IN UTF-8
-br_FR ISO-8859-1
-br_FR.UTF-8 UTF-8
-br_FR@euro ISO-8859-15
-brx_IN UTF-8
-bs_BA ISO-8859-2
-bs_BA.UTF-8 UTF-8
-byn_ER UTF-8
-ca_AD ISO-8859-15
-ca_AD.UTF-8 UTF-8
-ca_ES ISO-8859-1
-ca_ES.UTF-8 UTF-8
-ca_ES.UTF-8@valencia UTF-8
-ca_ES@euro ISO-8859-15
-ca_ES@valencia ISO-8859-15
-ca_FR ISO-8859-15
-ca_FR.UTF-8 UTF-8
-ca_IT ISO-8859-15
-ca_IT.UTF-8 UTF-8
-ce_RU UTF-8
-chr_US UTF-8
-cmn_TW UTF-8
-crh_UA UTF-8
-cs_CZ ISO-8859-2
-cs_CZ.UTF-8 UTF-8
-csb_PL UTF-8
-cv_RU UTF-8
-cy_GB ISO-8859-14
-cy_GB.UTF-8 UTF-8
-da_DK ISO-8859-1
-da_DK.UTF-8 UTF-8
-de_AT ISO-8859-1
-de_AT.UTF-8 UTF-8
-de_AT@euro ISO-8859-15
-de_BE ISO-8859-1
-de_BE.UTF-8 UTF-8
-de_BE@euro ISO-8859-15
-de_CH ISO-8859-1
-de_CH.UTF-8 UTF-8
-de_DE ISO-8859-1
-de_DE.UTF-8 UTF-8
-de_DE@euro ISO-8859-15
-de_IT ISO-8859-1
-de_IT.UTF-8 UTF-8
-de_LI.UTF-8 UTF-8
-de_LU ISO-8859-1
-de_LU.UTF-8 UTF-8
-de_LU@euro ISO-8859-15
-doi_IN UTF-8
-dv_MV UTF-8
-dz_BT UTF-8
-el_CY ISO-8859-7
-el_CY.UTF-8 UTF-8
-el_GR ISO-8859-7
-el_GR.UTF-8 UTF-8
-en_AG UTF-8
-en_AU ISO-8859-1
-en_AU.UTF-8 UTF-8
-en_BW ISO-8859-1
-en_BW.UTF-8 UTF-8
-en_CA ISO-8859-1
-en_CA.UTF-8 UTF-8
-en_DK ISO-8859-1
-en_DK.ISO-8859-15 ISO-8859-15
-en_DK.UTF-8 UTF-8
-en_GB ISO-8859-1
-en_GB.ISO-8859-15 ISO-8859-15
-en_GB.UTF-8 UTF-8
-en_HK ISO-8859-1
-en_HK.UTF-8 UTF-8
-en_IE ISO-8859-1
-en_IE.UTF-8 UTF-8
-en_IE@euro ISO-8859-15
-en_IL UTF-8
-en_IN UTF-8
-en_NG UTF-8
-en_NZ ISO-8859-1
-en_NZ.UTF-8 UTF-8
-en_PH ISO-8859-1
-en_PH.UTF-8 UTF-8
-en_SG ISO-8859-1
-en_SG.UTF-8 UTF-8
-en_US ISO-8859-1
-en_US.ISO-8859-15 ISO-8859-15
-en_US.UTF-8 UTF-8
-en_ZA ISO-8859-1
-en_ZA.UTF-8 UTF-8
-en_ZM UTF-8
-en_ZW ISO-8859-1
-en_ZW.UTF-8 UTF-8
-eo UTF-8
-es_AR ISO-8859-1
-es_AR.UTF-8 UTF-8
-es_BO ISO-8859-1
-es_BO.UTF-8 UTF-8
-es_CL ISO-8859-1
-es_CL.UTF-8 UTF-8
-es_CO ISO-8859-1
-es_CO.UTF-8 UTF-8
-es_CR ISO-8859-1
-es_CR.UTF-8 UTF-8
-es_CU UTF-8
-es_DO ISO-8859-1
-es_DO.UTF-8 UTF-8
-es_EC ISO-8859-1
-es_EC.UTF-8 UTF-8
-es_ES ISO-8859-1
-es_ES.UTF-8 UTF-8
-es_ES@euro ISO-8859-15
-es_GT ISO-8859-1
-es_GT.UTF-8 UTF-8
-es_HN ISO-8859-1
-es_HN.UTF-8 UTF-8
-es_MX ISO-8859-1
-es_MX.UTF-8 UTF-8
-es_NI ISO-8859-1
-es_NI.UTF-8 UTF-8
-es_PA ISO-8859-1
-es_PA.UTF-8 UTF-8
-es_PE ISO-8859-1
-es_PE.UTF-8 UTF-8
-es_PR ISO-8859-1
-es_PR.UTF-8 UTF-8
-es_PY ISO-8859-1
-es_PY.UTF-8 UTF-8
-es_SV ISO-8859-1
-es_SV.UTF-8 UTF-8
-es_US ISO-8859-1
-es_US.UTF-8 UTF-8
-es_UY ISO-8859-1
-es_UY.UTF-8 UTF-8
-es_VE ISO-8859-1
-es_VE.UTF-8 UTF-8
-et_EE ISO-8859-1
-et_EE.ISO-8859-15 ISO-8859-15
-et_EE.UTF-8 UTF-8
-eu_ES ISO-8859-1
-eu_ES.UTF-8 UTF-8
-eu_ES@euro ISO-8859-15
-eu_FR ISO-8859-1
-eu_FR.UTF-8 UTF-8
-eu_FR@euro ISO-8859-15
-fa_IR UTF-8
-ff_SN UTF-8
-fi_FI ISO-8859-1
-fi_FI.UTF-8 UTF-8
-fi_FI@euro ISO-8859-15
-fil_PH UTF-8
-fo_FO ISO-8859-1
-fo_FO.UTF-8 UTF-8
-fr_BE ISO-8859-1
-fr_BE.UTF-8 UTF-8
-fr_BE@euro ISO-8859-15
-fr_CA ISO-8859-1
-fr_CA.UTF-8 UTF-8
-fr_CH ISO-8859-1
-fr_CH.UTF-8 UTF-8
-fr_FR ISO-8859-1
-fr_FR.UTF-8 UTF-8
-fr_FR@euro ISO-8859-15
-fr_LU ISO-8859-1
-fr_LU.UTF-8 UTF-8
-fr_LU@euro ISO-8859-15
-fur_IT UTF-8
-fy_DE UTF-8
-fy_NL UTF-8
-ga_IE ISO-8859-1
-ga_IE.UTF-8 UTF-8
-ga_IE@euro ISO-8859-15
-gd_GB ISO-8859-15
-gd_GB.UTF-8 UTF-8
-gez_ER UTF-8
-gez_ER@abegede UTF-8
-gez_ET UTF-8
-gez_ET@abegede UTF-8
-gl_ES ISO-8859-1
-gl_ES.UTF-8 UTF-8
-gl_ES@euro ISO-8859-15
-gu_IN UTF-8
-gv_GB ISO-8859-1
-gv_GB.UTF-8 UTF-8
-ha_NG UTF-8
-hak_TW UTF-8
-he_IL ISO-8859-8
-he_IL.UTF-8 UTF-8
-hi_IN UTF-8
-hne_IN UTF-8
-hr_HR ISO-8859-2
-hr_HR.UTF-8 UTF-8
-hsb_DE ISO-8859-2
-hsb_DE.UTF-8 UTF-8
-ht_HT UTF-8
-hu_HU ISO-8859-2
-hu_HU.UTF-8 UTF-8
-hy_AM UTF-8
-hy_AM.ARMSCII-8 ARMSCII-8
-ia_FR UTF-8
-id_ID ISO-8859-1
-id_ID.UTF-8 UTF-8
-ig_NG UTF-8
-ik_CA UTF-8
-is_IS ISO-8859-1
-is_IS.UTF-8 UTF-8
-it_CH ISO-8859-1
-it_CH.UTF-8 UTF-8
-it_IT ISO-8859-1
-it_IT.UTF-8 UTF-8
-it_IT@euro ISO-8859-15
-iu_CA UTF-8
-ja_JP.EUC-JP EUC-JP
-ja_JP.UTF-8 UTF-8
-ka_GE GEORGIAN-PS
-ka_GE.UTF-8 UTF-8
-kk_KZ PT154
-kk_KZ.RK1048 RK1048
-kk_KZ.UTF-8 UTF-8
-kl_GL ISO-8859-1
-kl_GL.UTF-8 UTF-8
-km_KH UTF-8
-kn_IN UTF-8
-ko_KR.EUC-KR EUC-KR
-ko_KR.UTF-8 UTF-8
-kok_IN UTF-8
-ks_IN UTF-8
-ks_IN@devanagari UTF-8
-ku_TR ISO-8859-9
-ku_TR.UTF-8 UTF-8
-kw_GB ISO-8859-1
-kw_GB.UTF-8 UTF-8
-ky_KG UTF-8
-lb_LU UTF-8
-lg_UG ISO-8859-10
-lg_UG.UTF-8 UTF-8
-li_BE UTF-8
-li_NL UTF-8
-lij_IT UTF-8
-ln_CD UTF-8
-lo_LA UTF-8
-lt_LT ISO-8859-13
-lt_LT.UTF-8 UTF-8
-lv_LV ISO-8859-13
-lv_LV.UTF-8 UTF-8
-lzh_TW UTF-8
-mag_IN UTF-8
-mai_IN UTF-8
-mg_MG ISO-8859-15
-mg_MG.UTF-8 UTF-8
-mhr_RU UTF-8
-mi_NZ ISO-8859-13
-mi_NZ.UTF-8 UTF-8
-mk_MK ISO-8859-5
-mk_MK.UTF-8 UTF-8
-ml_IN UTF-8
-mn_MN UTF-8
-mni_IN UTF-8
-mr_IN UTF-8
-ms_MY ISO-8859-1
-ms_MY.UTF-8 UTF-8
-mt_MT ISO-8859-3
-mt_MT.UTF-8 UTF-8
-my_MM UTF-8
-nan_TW UTF-8
-nan_TW@latin UTF-8
-nb_NO ISO-8859-1
-nb_NO.UTF-8 UTF-8
-nds_DE UTF-8
-nds_NL UTF-8
-ne_NP UTF-8
-nhn_MX UTF-8
-niu_NU UTF-8
-niu_NZ UTF-8
-nl_AW UTF-8
-nl_BE ISO-8859-1
-nl_BE.UTF-8 UTF-8
-nl_BE@euro ISO-8859-15
-nl_NL ISO-8859-1
-nl_NL.UTF-8 UTF-8
-nl_NL@euro ISO-8859-15
-nn_NO ISO-8859-1
-nn_NO.UTF-8 UTF-8
-nr_ZA UTF-8
-nso_ZA UTF-8
-oc_FR ISO-8859-1
-oc_FR.UTF-8 UTF-8
-om_ET UTF-8
-om_KE ISO-8859-1
-om_KE.UTF-8 UTF-8
-or_IN UTF-8
-os_RU UTF-8
-pa_IN UTF-8
-pa_PK UTF-8
-pap_AW UTF-8
-pap_CW UTF-8
-pl_PL ISO-8859-2
-pl_PL.UTF-8 UTF-8
-ps_AF UTF-8
-pt_BR ISO-8859-1
-pt_BR.UTF-8 UTF-8
-pt_PT ISO-8859-1
-pt_PT.UTF-8 UTF-8
-pt_PT@euro ISO-8859-15
-quz_PE UTF-8
-raj_IN UTF-8
-ro_RO ISO-8859-2
-ro_RO.UTF-8 UTF-8
-ru_RU ISO-8859-5
-ru_RU.CP1251 CP1251
-ru_RU.KOI8-R KOI8-R
-ru_RU.UTF-8 UTF-8
-ru_UA KOI8-U
-ru_UA.UTF-8 UTF-8
-rw_RW UTF-8
-sa_IN UTF-8
-sat_IN UTF-8
-sc_IT UTF-8
-sd_IN UTF-8
-sd_IN@devanagari UTF-8
-se_NO UTF-8
-sgs_LT UTF-8
-shs_CA UTF-8
-si_LK UTF-8
-sid_ET UTF-8
-sk_SK ISO-8859-2
-sk_SK.UTF-8 UTF-8
-sl_SI ISO-8859-2
-sl_SI.UTF-8 UTF-8
-so_DJ ISO-8859-1
-so_DJ.UTF-8 UTF-8
-so_ET UTF-8
-so_KE ISO-8859-1
-so_KE.UTF-8 UTF-8
-so_SO ISO-8859-1
-so_SO.UTF-8 UTF-8
-sq_AL ISO-8859-1
-sq_AL.UTF-8 UTF-8
-sq_MK UTF-8
-sr_ME UTF-8
-sr_RS UTF-8
-sr_RS@latin UTF-8
-ss_ZA UTF-8
-st_ZA ISO-8859-1
-st_ZA.UTF-8 UTF-8
-sv_FI ISO-8859-1
-sv_FI.UTF-8 UTF-8
-sv_FI@euro ISO-8859-15
-sv_SE ISO-8859-1
-sv_SE.ISO-8859-15 ISO-8859-15
-sv_SE.UTF-8 UTF-8
-sw_KE UTF-8
-sw_TZ UTF-8
-szl_PL UTF-8
-ta_IN UTF-8
-ta_LK UTF-8
-tcy_IN.UTF-8 UTF-8
-te_IN UTF-8
-tg_TJ KOI8-T
-tg_TJ.UTF-8 UTF-8
-th_TH TIS-620
-th_TH.UTF-8 UTF-8
-the_NP UTF-8
-ti_ER UTF-8
-ti_ET UTF-8
-tig_ER UTF-8
-tk_TM UTF-8
-tl_PH ISO-8859-1
-tl_PH.UTF-8 UTF-8
-tn_ZA UTF-8
-tr_CY ISO-8859-9
-tr_CY.UTF-8 UTF-8
-tr_TR ISO-8859-9
-tr_TR.UTF-8 UTF-8
-ts_ZA UTF-8
-tt_RU UTF-8
-tt_RU@iqtelif UTF-8
-ug_CN UTF-8
-uk_UA KOI8-U
-uk_UA.UTF-8 UTF-8
-unm_US UTF-8
-ur_IN UTF-8
-ur_PK UTF-8
-uz_UZ ISO-8859-1
-uz_UZ.UTF-8 UTF-8
-uz_UZ@cyrillic UTF-8
-ve_ZA UTF-8
-vi_VN UTF-8
-wa_BE ISO-8859-1
-wa_BE.UTF-8 UTF-8
-wa_BE@euro ISO-8859-15
-wae_CH UTF-8
-wal_ET UTF-8
-wo_SN UTF-8
-xh_ZA ISO-8859-1
-xh_ZA.UTF-8 UTF-8
-yi_US CP1255
-yi_US.UTF-8 UTF-8
-yo_NG UTF-8
-yue_HK UTF-8
-zh_CN GB2312
-zh_CN.GB18030 GB18030
-zh_CN.GBK GBK
-zh_CN.UTF-8 UTF-8
-zh_HK BIG5-HKSCS
-zh_HK.UTF-8 UTF-8
-zh_SG GB2312
-zh_SG.GBK GBK
-zh_SG.UTF-8 UTF-8
-zh_TW BIG5
-zh_TW.EUC-TW EUC-TW
-zh_TW.UTF-8 UTF-8
-zu_ZA ISO-8859-1
-zu_ZA.UTF-8 UTF-8
-zu_ZA.UTF-8 UTF-8
diff --git a/scripts/setup-conf.sh b/scripts/setup-conf.sh
index 1791d2d..75c2ef8 100644
--- a/scripts/setup-conf.sh
+++ b/scripts/setup-conf.sh
@@ -119,8 +119,8 @@ fi
 
 # Optimise PostgreSQL shared memory for PostGIS
 # shmall units are pages and shmmax units are bytes(?) equivalent to the desired shared_buffer size set in setup_conf.sh - in this case 500MB
-echo "kernel.shmmax=543252480" >> /etc/sysctl.conf
-echo "kernel.shmall=2097152" >> /etc/sysctl.conf
+echo "kernel.shmmax=${KERNEL_SHMMAX}" >> /etc/sysctl.conf
+echo "kernel.shmall=${KERNEL_SHMALL}" >> /etc/sysctl.conf
 
 # Put lock file to make sure conf was not reinitialized
 touch "${SETUP_LOCKFILE}"
diff --git a/scripts/setup-database.sh b/scripts/setup-database.sh
index 32df8db..71a6f91 100644
--- a/scripts/setup-database.sh
+++ b/scripts/setup-database.sh
@@ -88,7 +88,7 @@ trap "echo \"Sending SIGTERM to postgres\"; killall -s SIGTERM postgres" SIGTERM
 su - postgres -c "${POSTGRES} -D ${DATADIR} -c config_file=${CONF} ${LOCALONLY} &"
 
 # wait for postgres to come up
-until su - postgres -c "pg_isready"; do
+until su - postgres -c "/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_isready"; do
   sleep 1
 done
 echo "postgres ready"
diff --git a/scripts/setup-replication.sh b/scripts/setup-replication.sh
index fe3f21f..c9d52cd 100755
--- a/scripts/setup-replication.sh
+++ b/scripts/setup-replication.sh
@@ -9,7 +9,7 @@ source /scripts/env-data.sh
 if [[ ${RUN_AS_ROOT} =~ [Ff][Aa][Ll][Ss][Ee] ]];then
   function START_COMMAND() {
 	  PARAM=$1
-  	gosu ${USER_NAME} bash -c "$1"
+  	gosu "${USER_NAME}" bash -c "$1"
   }
 else
   function START_COMMAND() {
@@ -29,26 +29,48 @@ if [[ "$WAL_LEVEL" == 'replica' && "${REPLICATION}" =~ [Tt][Rr][Uu][Ee] ]]; then
   fi
   
 
-  until START_COMMAND "/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_isready -h ${REPLICATE_FROM} -p ${REPLICATE_PORT}"
-  do
-    echo -e "[Entrypoint] \e[1;31m Waiting for master to ping... \033[0m"
-    sleep 1s
-  done
-  if [[ "$DESTROY_DATABASE_ON_RESTART" =~ [Tt][Rr][Uu][Ee] ]]; then
-    echo -e "[Entrypoint] \e[1;31m Get initial database from master \033[0m"
-    configure_replication_permissions
-    if [ -f "${DATADIR}/backup_label.old" ]; then
-      echo -e "[Entrypoint] \e[1;31m PG Basebackup already exists so proceed to start the DB \033[0m"
-    else
-      streaming_replication
+  if [[ "${PROMOTE_MASTER}" =~ [Ff][Aa][Ll][Ss][Ee] ]];then
 
+    until START_COMMAND "/usr/lib/postgresql/${POSTGRES_MAJOR_VERSION}/bin/pg_isready -h ${REPLICATE_FROM} -p ${REPLICATE_PORT}"
+    do
+      echo -e "[Entrypoint] \e[1;31m Waiting for master to ping... \033[0m"
+      sleep 1s
+    done
+    if [[ "$DESTROY_DATABASE_ON_RESTART" =~ [Tt][Rr][Uu][Ee] ]]; then
+      echo -e "[Entrypoint] \e[1;31m Get initial database from master \033[0m"
+      configure_replication_permissions
+      if [ -f "${DATADIR}/backup_label.old" ]; then
+        echo -e "[Entrypoint] \e[1;31m PG Basebackup already exists so proceed to start the DB \033[0m"
+      else
+        streaming_replication
+
+      fi
+   fi
+
+  else
+    if [ ! -f "${DATADIR}/backup_label.old" ]; then
+      echo "Streaming replication hasn't been started yet"
+      exit 1
+    else
+      if [[ ${RUN_AS_ROOT} =~ [Ff][Aa][Ll][Ss][Ee] ]];then
+          chown -R "${USER_NAME}":"${DB_GROUP_NAME}" /var/run/postgresql
+          START_COMMAND "/etc/init.d/postgresql start ${POSTGRES_MAJOR_VERSION}"
+
+      else
+          START_COMMAND "/etc/init.d/postgresql start ${POSTGRES_MAJOR_VERSION}"
+      fi
+
+      STANDBY_MODE=$(START_COMMAND "${DATA_DIR_CONTROL} $DATADIR" | grep "Database cluster state:")
+      if [[ "$STANDBY_MODE" == *"in archive recovery"* ]]; then
+        START_COMMAND "${NODE_PROMOTION} promote -D ${DATADIR}"
+      fi
+      echo -e "\e[32m [Entrypoint] Replicant has been promoted to master, please shut down  \e[1;31m pg-master  \033[0m"
+      kill_postgres
     fi
- fi
-  # Promote to master if desired
-  if [[ ! -z "${PROMOTE_MASTER}" ]]; then
-    ${START_COMMAND} "${NODE_PROMOTION} promote -D ${DATADIR}"
+
   fi
 
+#end main if
 fi