Set up postgres

.editorconfig

@@ -9,7 +9,7 @@ insert_final_newline = true
 max_line_length = 120
 tab_width = 4
 
-[*.{http,json,md,sh,xml,xsd,yaml,yml}]
+[*.{http,json,md,sh,sql,xml,xsd,yaml,yml}]
 max_line_length = 1024
 indent_size = 2
 tab_width = 2

README.md

@@ -7,6 +7,9 @@ Classes crafted, identities bestowed, Each device recorded, their functions unfo
 | name                   | required | info                    |
 |------------------------|----------|-------------------------|
 | spring.profiles.active | *        | Spring Boot environment |
+| spring.r2dbc.url       | *        | Postgreas host url      |
+| spring.r2dbc.username  | *        | Postgreas username      |
+| spring.r2dbc.password  | **       | Postgreas password      |
 
 Required: * can be stored as text, and ** need to be stored as secret.  
 

build.gradle.kts

@@ -10,8 +10,12 @@ dependencies {
     implementation(hlaeja.kotlin.reflect)
     implementation(hlaeja.kotlinx.coroutines)
     implementation(hlaeja.org.springframework.springboot.actuator.starter)
+    implementation(hlaeja.org.springframework.springboot.r2dbc.starter)
     implementation(hlaeja.org.springframework.springboot.webflux.starter)
 
+    runtimeOnly(hlaeja.org.postgresql)
+    runtimeOnly(hlaeja.org.postgresql.r2dbc)
+
     testImplementation(hlaeja.io.mockk)
     testImplementation(hlaeja.io.projectreactor.reactor.test)
     testImplementation(hlaeja.kotlin.test.junit5)

sql/000-initizalise.sql

@@ -0,0 +1,65 @@
+-- Role: role_administrator
+-- DROP ROLE IF EXISTS role_administrator;
+
+CREATE ROLE role_administrator;
+
+
+-- Role: role_service
+-- DROP ROLE IF EXISTS role_service;
+
+CREATE ROLE role_service;
+
+
+-- Role: role_maintainer
+-- DROP ROLE IF EXISTS role_maintainer;
+
+CREATE ROLE role_maintainer;
+
+
+-- Role: support_role
+-- DROP ROLE IF EXISTS support_role;
+
+CREATE ROLE role_support;
+
+
+-- User: services
+-- DROP USER IF EXISTS services;
+
+CREATE USER services WITH PASSWORD 'password';
+
+-- Assign role to the user
+GRANT role_service TO services;
+
+
+-- User: user_maintainer
+-- DROP USER IF EXISTS user_maintainer;
+
+CREATE USER user_maintainer WITH PASSWORD 'password';
+
+-- Assign role to the user
+GRANT role_maintainer TO user_maintainer;
+
+
+-- User: user_support
+-- DROP USER IF EXISTS user_support;
+
+CREATE USER user_support WITH PASSWORD 'password';
+
+-- Assign role to the user
+GRANT role_support TO user_support;
+
+
+-- Database: device_registry
+-- DROP DATABASE IF EXISTS device_registry;
+
+CREATE DATABASE device_registry
+  WITH
+  OWNER = role_administrator
+  ENCODING = 'UTF8'
+  LC_COLLATE = 'en_US.utf8'
+  LC_CTYPE = 'en_US.utf8'
+  LOCALE_PROVIDER = 'libc'
+  TABLESPACE = pg_default
+  CONNECTION LIMIT = -1
+  IS_TEMPLATE = False;
+

sql/001-uuid_v7.sql

@@ -0,0 +1,43 @@
+-- FUNCTION: public.gen_uuid_v7(timestamp with time zone)
+
+-- DROP FUNCTION IF EXISTS public.gen_uuid_v7(timestamp with time zone);
+
+CREATE OR REPLACE FUNCTION public.gen_uuid_v7(p_timestamp timestamp with time zone)
+  RETURNS uuid
+  LANGUAGE 'sql'
+  COST 100
+  VOLATILE PARALLEL UNSAFE
+AS
+$BODY$
+-- Replace the first 48 bits of a uuid v4 with the provided timestamp (in milliseconds) since 1970-01-01 UTC, and set the version to 7
+SELECT encode(set_bit(set_bit(overlay(uuid_send(gen_random_uuid()) PLACING substring(int8send((extract(EPOCH FROM p_timestamp) * 1000):: BIGINT) FROM 3) FROM 1 FOR 6), 52, 1), 53, 1), 'hex') ::uuid;
+$BODY$;
+
+ALTER FUNCTION public.gen_uuid_v7(timestamp with time zone)
+  OWNER TO role_administrator;
+
+COMMENT
+  ON FUNCTION public.gen_uuid_v7(timestamp with time zone)
+  IS 'Generate a UUIDv7 value using a provided timestamp (in milliseconds since 1970-01-01 UTC) with 74 bits of randomness.';
+
+
+-- FUNCTION: public.gen_uuid_v7()
+
+-- DROP FUNCTION IF EXISTS public.gen_uuid_v7();
+
+CREATE OR REPLACE FUNCTION public.gen_uuid_v7()
+  RETURNS uuid
+  LANGUAGE 'sql'
+  COST 100
+  VOLATILE PARALLEL UNSAFE
+AS
+$BODY$
+SELECT gen_uuid_v7(clock_timestamp());
+$BODY$;
+
+ALTER FUNCTION public.gen_uuid_v7()
+  OWNER TO role_administrator;
+
+COMMENT
+  ON FUNCTION public.gen_uuid_v7()
+  IS 'Generate a UUIDv7 value with a 48-bit timestamp (millisecond precision) and 74 bits of randomness.';

src/main/resources/application.yml

@@ -18,6 +18,10 @@ spring:
   config:
     activate:
       on-profile: development
+  r2dbc:
+    url: r2dbc:postgresql://localhost:5432/device_registry
+    username: services
+    password: password
 
 ---
 ##########################
@@ -27,6 +31,10 @@ spring:
   config:
     activate:
       on-profile: docker
+  r2dbc:
+    url: r2dbc:postgresql://PostgreSQL:5432/device_registry
+    username: services
+    password: password
 
 ---
 ##############################