Add postgis extension - a spatial database extender for PostgreSQL

config/initializers/active_record_config.rb

@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+ActiveRecord::SchemaDumper.ignore_tables |= %w[
+  geography_columns
+  geometry_columns
+  layer
+  raster_columns
+  raster_overviews
+  spatial_ref_sys
+  topology
+]

db/migrate/20250121161119_enable_postgis_extension.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class EnablePostgisExtension < ActiveRecord::Migration[8.0]
+  def change
+    enable_extension 'postgis' unless extension_enabled?('postgis')
+  end
+end

db/schema.rb

@@ -10,14 +10,15 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.0].define(version: 2025_01_16_123350) do
+ActiveRecord::Schema[8.0].define(version: 2025_01_21_161119) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "btree_gin"
   enable_extension "btree_gist"
   enable_extension "citext"
   enable_extension "pg_buffercache"
   enable_extension "pg_catalog.plpgsql"
   enable_extension "pg_stat_statements"
+  enable_extension "postgis"
   enable_extension "uuid-ossp"
 
   create_table "__EFMigrationsHistory", primary_key: "MigrationId", id: { type: :string, limit: 150 }, force: :cascade do |t|

docker-compose.yml

@@ -5,7 +5,7 @@ services:
       - "6379:6379"
 
   db:
-    image: postgres:14-alpine
+    image: postgis/postgis:14-3.5-alpine
     # To preserve data between runs of docker compose, we mount a folder from the host machine.
     volumes:
       - dbdata:/var/lib/postgresql/data

guides/machine-setup.md

@@ -9,6 +9,7 @@ You'll need to have the libraries below to be able to develop the application lo
 - [Node.js](https://nodejs.org/en/)
 - [Yarn](https://yarnpkg.com/)
 - [PostgreSQL](https://www.postgresql.org/)
+- [Postgis](https://postgis.net/install/)
 - [Redis](https://redis.io/)
 - [ChromeDriver](https://chromedriver.chromium.org/)
 - [Terraform](https://www.terraform.io/)

terraform/aks/databases.tf

@@ -56,4 +56,5 @@ module "postgres" {
   azure_enable_high_availability = var.postgres_enable_high_availability
   azure_maintenance_window       = var.postgres_azure_maintenance_window
   server_version                 = "14"
+  server_docker_image            = "postgis/postgis:14-3.5"
 }