test: try to use custom Dockerfile for pgvector support

docker-compose.yml

@@ -27,10 +27,8 @@ services:
 
   # postgres
   postgres:
-    # mdillon/postgis is postgres + PostGIS (only). if you need additional
-    # extensions, it's probably time to create a purpose-built image with all
-    # necessary extensions. sorry, and thanks for adding support for them!
-    image: "postgis/postgis:14-3.3"
+    build:
+      context: docker/pgvector
     container_name: "typeorm-postgres"
     ports:
       - "5432:5432"

docker/pgvector/01_init.sql

@@ -0,0 +1 @@
+CREATE EXTENSION vector;

docker/pgvector/Dockerfile

@@ -0,0 +1,17 @@
+# Start from the PostGIS image
+# mdillon/postgis is postgres + PostGIS (only). if you need additional
+# extensions, it's probably time to create a purpose-built image with all
+# necessary extensions. sorry, and thanks for adding support for them!
+FROM postgis/postgis:14-3.3
+
+# Install git
+RUN apt-get update && apt-get install -y git make gcc postgresql-server-dev-all
+
+# Clone the pgvector repository
+RUN git clone --branch v0.6.2 https://github.com/pgvector/pgvector.git
+
+COPY 01_init.sql /docker-entrypoint-initdb.d/
+
+# Build and install the pgvector extension
+WORKDIR /pgvector
+RUN make && make install