initial commit

Author: axelrindle

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_style = space
+indent_size = 4
+insert_final_newline = false
+trim_trailing_whitespace = true
+
+[*.{yml,yaml}]
+indent_size = 2

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  docker:
+    name: Build Docker Image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+      attestations: write
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        id: push
+        with:
+          tags: ${{ env.REGISTRY }}/${{ github.repository }}
+          labels: ${{ steps.meta.outputs.labels }}
+          push: ${{ github.event_name != 'pull_request' }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

Dockerfile

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+ARG POSTGRES_VERSION=15
+
+FROM postgres:${POSTGRES_VERSION}-alpine
+
+ARG POSTGRES_VERSION
+
+RUN apk add --no-cache --virtual .deps \
+        cmake \
+        make \
+        git \
+        pkgconf \
+        postgresql${POSTGRES_VERSION}-dev \
+        openssl-dev \
+        curl-dev \
+        clang19 \
+        llvm19 \
+    && \
+    git clone --depth 1 --branch REL-5_5_2 \
+        https://github.com/EnterpriseDB/mongo_fdw.git \
+        /usr/local/src/mongo-fdw \
+    && \
+    cd /usr/local/src/mongo-fdw && \
+    ./autogen.sh && \
+    export PKG_CONFIG_PATH=mongo-c-driver/src/libmongoc/src:mongo-c-driver/src/libbson/src && \
+    make USE_PGXS=1 && \
+    make USE_PGXS=1 install && \
+    apk del .deps

docker-compose.yml

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+services:
+  postgres:
+    image: postgres-mongo-fdw
+    build: .
+    depends_on:
+      - mongo
+    ports:
+      - 5432:5432
+    environment:
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD=postgres
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+    configs:
+      - source: postgres_init_script
+        target: /docker-entrypoint-initdb.d/99-custom.sh
+
+  db-admin:
+    image: dpage/pgadmin4:8
+    depends_on:
+      - postgres
+    ports:
+      - 5433:80
+    environment:
+      - PGADMIN_DEFAULT_EMAIL=admin@example.org
+      - PGADMIN_DEFAULT_PASSWORD=admin
+    volumes:
+      - postgres_admin_data:/var/lib/pgadmin
+    configs:
+      - source: postgres_password
+        target: /run/secrets/password.txt
+      - source: postgres_servers
+        target: /pgadmin4/servers.json
+
+  mongo:
+    image: mongo
+    ports:
+      - 27017:27017
+    environment:
+      MONGO_INITDB_ROOT_USERNAME: admin
+      MONGO_INITDB_ROOT_PASSWORD: admin
+      MONGO_INITDB_DATABASE: app
+    volumes:
+      - mongo_data:/data/db
+    configs:
+      - source: mongo_init_script
+        target: /docker-entrypoint-initdb.d/99-custom.js
+
+  mongo-admin:
+    image: mongo-express
+    restart: always
+    depends_on:
+      - mongo
+    ports:
+      - 27018:8081
+    environment:
+      ME_CONFIG_MONGODB_ADMINUSERNAME: admin
+      ME_CONFIG_MONGODB_ADMINPASSWORD: admin
+      ME_CONFIG_MONGODB_URL: mongodb://admin:admin@mongo:27017
+      ME_CONFIG_BASICAUTH: false
+
+volumes:
+  postgres_data:
+  postgres_admin_data:
+  mongo_data:
+
+configs:
+  postgres_servers:
+    content: |
+      {
+        "Servers": {
+          "1": {
+            "Group": "postgres",
+            "Name": "postgres",
+            "Port": 5432,
+            "Username": "postgres",
+            "PassFile": "/run/secrets/password.txt",
+            "Host": "postgres",
+            "SSLMode": "prefer",
+            "MaintenanceDB": "postgres"
+          }
+        }
+      }
+  postgres_password:
+    content: postgres
+  postgres_init_script:
+    content: |
+      #!/bin/bash
+      set -e
+
+      psql -v ON_ERROR_STOP=1 --username "$$POSTGRES_USER" --dbname "$$POSTGRES_DB" <<-EOSQL
+        CREATE EXTENSION mongo_fdw;
+
+        CREATE SERVER "mongo" FOREIGN DATA WRAPPER mongo_fdw OPTIONS (
+          address 'mongo',
+          port '27017',
+          authentication_database 'admin'
+        );
+
+        CREATE USER MAPPING FOR postgres SERVER "mongo" OPTIONS (
+          username 'admin',
+          password 'admin'
+        );
+
+        CREATE FOREIGN TABLE items (
+          _id name,
+          name text,
+          price float
+        ) SERVER "mongo" OPTIONS (
+          database 'app',
+          collection 'items'
+        );
+      EOSQL
+  mongo_init_script:
+    content: |
+      db.createCollection("items");
+      db.items.insertMany([
+        {
+          _id: new ObjectId(),
+          name: "Apples",
+          price: 4.99
+        },
+        {
+          _id: new ObjectId(),
+          name: "Bananas",
+          price: 9.99
+        },
+        {
+          _id: new ObjectId(),
+          name: "Tomatoes",
+          price: 3.99
+        },
+      ]);