Add working docker-compose config & link in README (#25)

README.md

@@ -18,7 +18,7 @@ to SMTP.
 
 Keila is ready for you to send newsletters with!
 
-You can easily deploy it using the official Docker image `pentacent/keila`.
+You can easily deploy it using the official Docker image `pentacent/keila` or use the [Docker Compose config](ops/docker-compose.yml) in this repo.
 
 Follow the [Installation Docs](https://keila.io/docs/installation)
 for more details.
@@ -52,3 +52,4 @@ License, or (at your option) any later version.
 For more details, please [read the full license here](LICENSE.md).
 
 Please note that the Keila logo is not subject to the aforementioned license.
+

ops/docker-compose.yml

@@ -0,0 +1,26 @@
+version: "3"
+
+services:
+  keila:
+    image: pentacent/keila:latest
+    ports:
+      - "4000:4000"
+    depends_on:
+      - postgres
+    build:
+      context: .
+    environment:
+      SECRET_KEY_BASE: "${YOUR_SECRET_KEY}"
+      DB_URL: "postgres://postgres:postgres@postgres/postgres"
+      URL_HOST: "${YOUR_URL_HOST}"
+      MAILER_SMTP_HOST: "${YOUR_MAILER_SMTP_HOST}"
+      MAILER_SMTP_USER: "${YOUR_MAILER_SMTP_USER}"
+      MAILER_SMTP_PASSWORD: "${YOUR_MAILER_SMTP_PASSWORD}"
+
+  postgres:
+    image: postgres:alpine
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_PASSWORD: postgres
+