From 84385cbf2ae59e6c4f1823ddb0f2c915a251360b Mon Sep 17 00:00:00 2001
From: Hrishikesh <hrishikesh.raverkar@gmail.com>
Date: Tue, 29 Jun 2021 01:46:54 +0530
Subject: [PATCH] Exists check for database and user
- Added exists check for database and user
- Added `--dbname "postgres"` in `psql` command
- Added owner, utf8 encoding, collate and template
---
create-multiple-postgresql-databases.sh | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/create-multiple-postgresql-databases.sh b/create-multiple-postgresql-databases.sh
index aa665fa..8cedaf0 100755
--- a/create-multiple-postgresql-databases.sh
+++ b/create-multiple-postgresql-databases.sh
@@ -6,9 +6,9 @@ set -u
function create_user_and_database() {
local database=$1
echo " Creating user and database '$database'"
- psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" <<-EOSQL
- CREATE USER $database;
- CREATE DATABASE $database;
+ psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "postgres" <<-EOSQL
+ SELECT 'CREATE USER ' || LOWER(TRIM('$database')) AS create_user_query WHERE NOT EXISTS (SELECT FROM pg_catalog.pg_roles WHERE rolname = LOWER(TRIM('$database')));\gexec
+ SELECT 'CREATE DATABASE ' || LOWER(TRIM('$database')) || ' WITH OWNER "$POSTGRES_USER" ENCODING "UTF8" LC_COLLATE = "en_US.UTF-8" LC_CTYPE = "en_US.UTF-8" TEMPLATE="template0"' AS create_table_query WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = LOWER(TRIM('$database')));\gexec
GRANT ALL PRIVILEGES ON DATABASE $database TO $database;
EOSQL
}