update/software/scripts/create_postgresql_database.sh

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#!/bin/bash
#
# Copyright (c) 2023-2024 Wind River Systems, Inc.
#
# SPDX-License-Identifier: Apache-2.0
#
#
# This script is used create a 2nd instance of postgres on a DX upgrade.
# It needs the port number as parameter and it should be different from the default.
#
script_dir=$(dirname $0)
shell_utils=${script_dir}/shell-utils
if [ -f $shell_utils ]; then
source $shell_utils
else
echo "ERROR: ${shell_utils} module not found."
exit 1
fi
DEFAULT_POSTGRESQL_PORT=5432
POSTGRESQL_PATH=/var/lib/postgresql
POSTGRESQL_BIN_DIR=$(pg_config --bindir)
POSTGRESQL_RUNTIME=/var/run/postgresql
INFO_FILE=/etc/build.info
if [ -z "$1" ]; then
error "'Port' parameter is missing."
exit 1
fi
PORT="$1"
# Prevent issues with the default postgres port
if [ "$PORT" -eq "$DEFAULT_POSTGRESQL_PORT" ]; then
error "Port number should be different from the default."
exit 1
fi
cleanup_and_exit() {
local exit_code="$1"
local error_message="$2"
error "$error_message" >&2
error "Please check the error details and take appropriate action for recovery." >&2
exit "$exit_code"
}
SW_VERSION=$(grep -o 'SW_VERSION="[0-9\.]*"' "$INFO_FILE" | cut -d '"' -f 2) ||
cleanup_and_exit 1 "Failed to get software version"
POSTGRESQL_DATA_DIR=$POSTGRESQL_PATH/$SW_VERSION
# Remove existing data directory
rm -rf "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to remove existing data directory: $POSTGRESQL_DATA_DIR"
mkdir -p "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to create data directory: $POSTGRESQL_DATA_DIR"
chown postgres "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to change ownership of data directory: $POSTGRESQL_DATA_DIR"
sudo -u postgres "$POSTGRESQL_BIN_DIR/initdb" -D "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to initialize the PostgreSQL database"
chmod 700 "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to set permissions for data directory: $POSTGRESQL_DATA_DIR"
chown postgres "$POSTGRESQL_DATA_DIR" ||
cleanup_and_exit 1 "Failed to change ownership of data directory: $POSTGRESQL_DATA_DIR"
mkdir -p "$POSTGRESQL_RUNTIME" ||
cleanup_and_exit 1 "Failed to create runtime directory: ${POSTGRESQL_RUNTIME}"
chown postgres "$POSTGRESQL_RUNTIME" ||
cleanup_and_exit 1 "Failed to change ownership of runtime directory: ${POSTGRESQL_RUNTIME}"
sudo -u postgres "$POSTGRESQL_BIN_DIR/pg_ctl" -D "$POSTGRESQL_DATA_DIR" -o "-F -p $PORT" start ||
cleanup_and_exit 1 "Failed to start PostgreSQL"
exit 0