feat(monorepo): update docker-compose.yml to use custom pg image (#33)

Create a custom Docker image for Postgres to add the
citext extension to the database upon initialization.

.docker/PgDockerfile

@@ -0,0 +1,4 @@
+FROM postgres:16.2-alpine
+
+# Copy in the load-extensions script
+COPY initdb-extensions.sh /docker-entrypoint-initdb.d/

.docker/initdb-extensions.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+set -e
+
+echo "Loading extensions into $DB"
+
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+# must quote extension names or else symbolic error will be thrown.
+CREATE EXTENSION IF NOT EXISTS 'citext';
+select * FROM pg_extension;
+EOSQL

.gitignore

@@ -55,4 +55,4 @@ vite.config.ts.timestamp-*
 .vercel/
 
 # local docker volumes
-/.docker/
+/.docker/data

.prettierignore

@@ -59,7 +59,7 @@ vite.config.ts.timestamp-*
 .vercel/
 
 # local docker volumes
-/.docker/
+/.docker/data
 
 #-------------------------------------------------------------------------------------------------------------------
 # Prettier-specific overrides

docker-compose.yml

@@ -1,6 +1,8 @@
 services:
   postgres:
-    image: postgres:16.2-alpine
+    build:
+      context: ./.docker
+      dockerfile: PgDockerfile
     restart: always
     environment:
       - POSTGRES_USER=postgres
@@ -13,7 +15,7 @@ services:
     ports:
       - '5432:5432'
     volumes:
-      - ./.docker/pg-data:/var/lib/postgresql/data
+      - ./.docker/data/pg-data:/var/lib/postgresql/data
 
   mailpit:
     image: axllent/mailpit
@@ -27,4 +29,4 @@ services:
       - 8025:8025
       - 1025:1025
     volumes:
-      - ./.docker/mailpit-data:/data
+      - ./.docker/data/mailpit-data:/data