Docker compose basic templates

Author: aditya43

05-Docker-Compose-Basics/01-Basic-Template/docker-compose.yml

@@ -0,0 +1,13 @@
+version: '3.1'  # if no version is specificed then v1 is assumed. Recommend v2 minimum
+
+services:  # containers. same as docker run
+  servicename: # Unique | a friendly name. this is also DNS name inside network
+    image: # Optional if you use build:
+    command: # Optional, replace the default CMD specified by the image
+    environment: # Optional, same as -e in docker run
+    volumes: # Optional, same as -v in docker run
+  servicename2: # Unique | Another friendly service name.
+
+volumes: # Optional, same as docker volume create
+
+networks: # Optional, same as docker network create

05-Docker-Compose-Basics/02-Jekyll-Static-Site/docker-compose.yml

@@ -0,0 +1,13 @@
+version: '2'
+
+# same as
+# docker run -p 80:4000 -v $(pwd):/site bretfisher/jekyll-serve
+
+services:
+  jekyll:
+    image: bretfisher/jekyll-serve
+    volumes:
+      - .:/site
+    ports:
+      - '80:4000'
+

05-Docker-Compose-Basics/03-WordPress-Setup/docker-compose.yml

@@ -0,0 +1,28 @@
+version: '2'
+
+services:
+
+  wordpress:
+    image: wordpress
+    ports:
+      - 8080:80
+    environment:
+      WORDPRESS_DB_HOST: mysql
+      WORDPRESS_DB_NAME: wordpress
+      WORDPRESS_DB_USER: example
+      WORDPRESS_DB_PASSWORD: examplePW
+    volumes:
+      - ./wordpress-data:/var/www/html
+
+  mysql:
+    image: mariadb
+    environment:
+      MYSQL_ROOT_PASSWORD: examplerootPW
+      MYSQL_DATABASE: wordpress
+      MYSQL_USER: example
+      MYSQL_PASSWORD: examplePW
+    volumes:
+      - mysql-data:/var/lib/mysql
+
+volumes:
+  mysql-data:

README.md

@@ -559,6 +559,14 @@ Open-sourced software licensed under the [MIT license](http://opensource.org/lic
     * CLI tool `docker-compose`:
         - Used for local dev/test automation with those `YAML` files to simplify our Docker commands.
 
+```diff
++ docker-compose.yml
+```
+- It was originally called `Fig` (years a go).
+- Compose YAML format has it's own versions. For e.g. `1, 2, 2.1, 3, 3.1` etc.
+- It can be used with `docker-compose` command for local Docker automation or can now be used (`v1.13 and above`) directly with the Docker command line in `production` with `swarm`.
+- `docker-compose.yml` is the default filename, but any other filename can be used with `docker-compose -f` option, as long as it's a proper `YAML`.
+
 ----------------------------------------
 
 ## Generic Examples