update readme.md for all samples

Signed-off-by: Anca Iordache <anca.iordache@docker.com>

README.md

@@ -22,31 +22,30 @@ The root directory of each sample contains the docker-compose.yaml describing th
 docker-compose up -d
 ```
 Check the `README.md` of each sample to get more details on the structure and what is the expected output.
-To stop and remove the running containers of the sample application do:
+To stop and remove the all containers of the sample application run:
 ```
 docker-compose down
 ```
 
-
 ## Contents
 
 *Samples of docker-compose applications with multiple integrated services:*
 
-- [`Asp.NET/MS-SQL`](samples/aspnet-mssql/README.md) -- sample asp\\.net core application with MS SQL server database
-- [`Flask / NGINX / MySQL`](samples/nginx-flask-mysql/README.md) -- sample Python/Flask application with an Nginx proxy and a MySQL database
-- [`Go / NGINX / MySQL`](samples/nginx-golang-mysql/README.md) -- sample Go application with an Nginx proxy and a MySQL database
-- [`Go / NGINX / PostgreSQL`](samples/nginx-golang-postgres/README.md) -- sample Go application with an Nginx proxy and a PostgreSQL database
-- [`Java / MySQL`](samples/sparkjava-mysql/README.md) -- sample Java application and a MySQL database
-- [`NGINX / Go`](samples/nginx-gohttp_1/README.md) -- sample Nginx application with a Go backend 
-- [`NGINX / Go`](samples/nginx-gohttp_2/README.md) -- another Nginx sample application with a Go backend
-- [`React / Spring / MySQL`](samples/react-java-mysql/README.md) -- sample React application with a Spring backend and a MySQL database
-- [`React / Express / MySQL`](samples/react-express-mysql/README.md) -- sample React application with a NodeJS backend and a MySQL database
-- [`Spring / PostgreSQL`](samples/spring-postgres/README.md) -- sample Java application with Spring framework and a Postgres database
-
+- [`ASP.NET / MS-SQL`](samples/aspnet-mssql) -- sample ASP.NET core application with MS SQL server database
+- [`Go / NGINX / MySQL`](samples/nginx-golang-mysql) -- sample Go application with an Nginx proxy and a MySQL database
+- [`Go / NGINX / PostgreSQL`](samples/nginx-golang-postgres) -- sample Go application with an Nginx proxy and a PostgreSQL database
+- [`Java Spark / MySQL`](samples/sparkjava-mysql) -- sample Java application and a MySQL database
+- [`NGINX / Flask / MongoDB`](samples/nginx-flask-mongo) -- sample Python/Flask application with Nginx proxy and a Mongo database
+- [`NGINX / Flask / MySQL`](samples/nginx-flask-mysql) -- sample Python/Flask application with an Nginx proxy and a MySQL database
+- [`NGINX / Go`](samples/nginx-golang) -- sample Nginx proxy with a Go backend
+- [`React / Spring / MySQL`](samples/react-java-mysql) -- sample React application with a Spring backend and a MySQL database
+- [`React / Express / MySQL`](samples/react-express-mysql) -- sample React application with a NodeJS backend and a MySQL database
+- [`Spring / PostgreSQL`](samples/spring-postgres) -- sample Java application with Spring framework and a Postgres database
 
 *Single service samples:*
-- [`Angular`](samples/angular/README.md)
-- [`VueJS`](samples/vuejs/README.md)
+- [`Angular`](samples/angular)
+- [`Spark`](samples/sparkjava)
+- [`VueJS`](samples/vuejs)
 
 ## Contribute
 

samples/angular/README.md

@@ -1,4 +1,5 @@
-## Compose sample - Angular service
+## Compose sample 
+### Angular service
 
 Project structure:
 ```
@@ -11,7 +12,7 @@ Project structure:
 └── docker-compose.yaml
 ```
 
-_docker-compose.yaml_
+[_docker-compose.yaml_](docker-compose.yaml)
 ```
 version: "3.7"
 services:
@@ -58,7 +59,7 @@ CONTAINER ID        IMAGE               COMMAND                  CREATED
 
 After the application starts, navigate to `http://localhost:80` in your web browser.
 
-![page](https://github.com/aiordache/awesome-compose/blob/master/samples/angular/output.jpg)
+![page](output.jpg)
 
 Stop and remove the container
 

samples/aspnet-mssql/README.md

@@ -1,4 +1,4 @@
-## Compose sample - ASP.Net
+## Compose sample application: ASP.NET with MS SQL server database
 
 Project structure:
 ```
@@ -12,17 +12,18 @@ Project structure:
 └── docker-compose.yaml
 ```
 
-_docker-compose.yaml_
+[_docker-compose.yaml_](docker-compose.yaml)
 ```
-version: "3.7"
 services:
   web:
     build: app
     ports:
     - 80:80
+  db:
+    image: microsoft/mssql-server-linux
     ...
 ```
-The compose file defines an application with one service `web`. The image for the service is built with the Dockerfile inside the `app` directory (build parameter).
+The compose file defines an application with two services `web` and `db`. The image for the web service is built with the Dockerfile inside the `app` directory (build parameter).
 
 When deploying the application, docker-compose maps the container port 80 to port 80 of the host as specified in the file.
 Make sure port 80 on the host is not being used by another container, otherwise the port should be changed.
@@ -32,7 +33,6 @@ Make sure port 80 on the host is not being used by another container, otherwise
 
 ```
 $ docker-compose up -d
-$ compose up -d
 Creating network "aspnet-mssql_default" with the default driver
 Building web
 Step 1/13 : FROM mcr.microsoft.com/dotnet/core/sdk:2.1 AS build
@@ -59,9 +59,9 @@ CONTAINER ID        IMAGE               COMMAND                  CREATED
 
 After the application starts, navigate to `http://localhost:80` in your web browser.
 
-![page](https://github.com/aiordache/awesome-compose/blob/master/samples/aspnet-mssql/output.jpg)
+![page](output.jpg)
 
-Stop and remove the container
+Stop and remove the containers
 
 ```
 $ docker-compose down

samples/nginx-flask-mongo/README.md

@@ -0,0 +1,71 @@
+## Compose sample application
+### Python/Flask application with Nginx proxy and a Mongo database
+
+Project structure:
+```
+.
+├── docker-compose.yaml
+├── flask
+│   ├── Dockerfile
+│   ├── requirements.txt
+│   └── server.py
+└── nginx
+    └── nginx.conf
+
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  web:
+    build: app
+    ports:
+    - 80:80
+  backend:
+    build: flask
+    ...
+  mongo:
+    image: mongo
+```
+The compose file defines an application with three services `web`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the web service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not being used by another container, otherwise the port should be changed.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "nginx-flask-mongo_default" with the default driver
+Pulling mongo (mongo:)...
+latest: Pulling from library/mongo
+423ae2b273f4: Pull complete
+...
+...
+Status: Downloaded newer image for nginx:latest
+Creating nginx-flask-mongo_mongo_1 ... done
+Creating nginx-flask-mongo_backend_1 ... done
+Creating nginx-flask-mongo_web_1     ... done
+
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
+a0f4ebe686ff        nginx                       "/bin/bash -c 'envsu…"   About a minute ago   Up About a minute   0.0.0.0:8080->80/tcp   nginx-flask-mongo_web_1
+dba87a080821        nginx-flask-mongo_backend   "./server.py"            About a minute ago   Up About a minute                          nginx-flask-mongo_backend_1
+d7eea5481c77        mongo                       "docker-entrypoint.s…"   About a minute ago   Up About a minute   27017/tcp              nginx-flask-mongo_mongo_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser or run:
+```
+$ curl localhost:80
+Hello fom the MongoDB client!
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

samples/nginx-flask-mongo/docker-compose.yaml

@@ -1,4 +1,4 @@
-version: "3"
+version: "3.7"
 services:
   web:
     image: nginx

samples/nginx-flask-mysql/README.md

@@ -0,0 +1,69 @@
+## Compose sample application
+### Python/Flask with Nginx proxy and MySQL database
+
+Project structure:
+```
+.
+├── docker-compose.yaml
+├── flask
+│   ├── Dockerfile
+│   ├── requirements.txt
+│   └── server.py
+└── nginx
+    └── nginx.conf
+
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  db:
+    image: mysql:5.7
+    ...
+  proxy:
+    build: proxy
+    ...
+```
+The compose file defines an application with three services `proxy`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the proxy service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "nginx-flask-mysql_default" with the default driver
+Pulling db (mysql:5.7)...
+5.7: Pulling from library/mysql
+...
+...
+WARNING: Image for service proxy was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating nginx-flask-mysql_db_1 ... done
+Creating nginx-flask-mysql_backend_1 ... done
+Creating nginx-flask-mysql_proxy_1   ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
+c65ecef87e85        nginx-flask-mysql_proxy     "nginx -g 'daemon of…"   About a minute ago   Up About a minute   0.0.0.0:80->80/tcp    nginx-flask-mysql_proxy_1
+96ccc0a5342f        nginx-flask-mysql_backend   "/bin/sh -c 'flask r…"   About a minute ago   Up About a minute   5000/tcp              nginx-flask-mysql_backend_1
+39327313a142        mysql:5.7                   "docker-entrypoint.s…"   About a minute ago   Up About a minute   3306/tcp, 33060/tcp   nginx-flask-mysql_db_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser or run:
+```
+$ curl localhost:80
+Hello world
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

samples/nginx-gohttp_1/Dockerfile

@@ -1,11 +0,0 @@
-FROM golang:1.13 AS builder
-
-WORKDIR /compose/hello-docker
-COPY main.go main.go
-RUN CGO_ENABLED=0 go build -o backend main.go
-
-FROM scratch
-COPY --from=builder /compose/hello-docker/backend /usr/local/bin/backend
-CMD ["/usr/local/bin/backend"]
-
-

samples/nginx-gohttp_1/docker-compose.yml

@@ -1,14 +0,0 @@
-
-version: "3.6"
-services:
-  frontend:
-    image: nginx
-    ports:
-    - 8080:80
-    volumes:
-    - ./nginx.conf:/etc/nginx/conf.d/default.conf
-    depends_on:
-    - backend
-  backend:
-    build: .
-

samples/nginx-gohttp_2/backend/main.go

@@ -1,30 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"log"
-	"net/http"
-)
-
-func handler(w http.ResponseWriter, r *http.Request) {
-	fmt.Println(r.URL.RawQuery)
-	fmt.Fprintf(w, `
-          ##         .
-    ## ## ##        ==
- ## ## ## ## ##    ===
-/"""""""""""""""""\___/ ===
-{                       /  ===-
-\______ O           __/
- \    \         __/
-  \____\_______/
-
-	
-Hello from Docker!
-
-`)
-}
-
-func main() {
-	http.HandleFunc("/", handler)
-	log.Fatal(http.ListenAndServe(":80", nil))
-}

samples/nginx-gohttp_2/frontend/nginx.conf

@@ -1,6 +0,0 @@
-server {
-  listen 80;
-  location / {
-    proxy_pass http://backend:80;
-  }
-}

samples/nginx-golang-mysql/README.md

@@ -0,0 +1,79 @@
+## Compose sample application
+### Go server with an Nginx proxy and a MySQL database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   ├── go.mod
+│   └── main.go
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+├── proxy
+│   ├── conf
+│   └── Dockerfile
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  db:
+    image: mysql:5.7
+    ...
+  proxy:
+    build: proxy
+    ports:
+    - 80:80
+    ...
+```
+The compose file defines an application with three services `proxy`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the proxy service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "nginx-golang-mysql_default" with the default driver
+Building backend
+Step 1/8 : FROM golang:1.13-alpine AS build
+1.13-alpine: Pulling from library/golang
+...
+Successfully built 5f7c899f9b49
+Successfully tagged nginx-golang-mysql_proxy:latest
+WARNING: Image for service proxy was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating nginx-golang-mysql_db_1 ... done
+Creating nginx-golang-mysql_backend_1 ... done
+Creating nginx-golang-mysql_proxy_1   ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
+8906b14c5ad1        nginx-golang-mysql_proxy     "nginx -g 'daemon of…"   2 minutes ago       Up 2 minutes        0.0.0.0:80->80/tcp    nginx-golang-mysq
+l_proxy_1
+13e0e0a7715a        nginx-golang-mysql_backend   "/server"                2 minutes ago       Up 2 minutes        8000/tcp              nginx-golang-mysq
+l_backend_1
+ca8c5975d205        mysql:5.7                    "docker-entrypoint.s…"   2 minutes ago       Up 2 minutes        3306/tcp, 33060/tcp   nginx-golang-mysq
+l_db_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser or run:
+```
+$ curl localhost:80
+["Blog post #0","Blog post #1","Blog post #2","Blog post #3","Blog post #4"]
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

samples/nginx-golang-postgres/README.md

@@ -0,0 +1,75 @@
+## Compose sample application
+### Go server with an Nginx proxy and a Postgres database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   ├── go.mod
+│   └── main.go
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+├── proxy
+│   ├── conf
+│   └── Dockerfile
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  db:
+    image: postgres
+    ...
+  proxy:
+    build: proxy
+    ports:
+    - 80:80
+    ...
+```
+The compose file defines an application with three services `proxy`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the proxy service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "nginx-golang-postgres_default" with the default driver
+Pulling db (postgres:)...
+latest: Pulling from library/postgres
+...
+Successfully built 5f7c899f9b49
+Successfully tagged nginx-golang-postgres_proxy:latest
+WARNING: Image for service proxy was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating nginx-golang-postgres_db_1 ... done
+Creating nginx-golang-postgres_backend_1 ... done
+Creating nginx-golang-postgres_proxy_1   ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE                           COMMAND                  CREATED             STATUS              PORTS                NAMES
+5e3ecd0289c0        nginx-golang-postgres_proxy     "nginx -g 'daemon of…"   48 seconds ago      Up 48 seconds       0.0.0.0:80->80/tcp   nginx-golang-postgres_proxy_1
+ffa1410b1c8a        nginx-golang-postgres_backend   "/server"                49 seconds ago      Up 48 seconds       8000/tcp             nginx-golang-postgres_backend_1
+e63be7db7cbc        postgres                        "docker-entrypoint.s…"   49 seconds ago      Up 49 seconds       5432/tcp             nginx-golang-postgres_db_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser or run:
+```
+$ curl localhost:80
+["Blog post #0","Blog post #1","Blog post #2","Blog post #3","Blog post #4"]
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

samples/nginx-golang/README.md

@@ -0,0 +1,78 @@
+## Compose sample application
+### NGINX proxy with GO backend
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   └── main.go
+├── docker-compose.yml
+├── frontend
+│   ├── Dockerfile
+│   └── nginx.conf
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+version: "3.7"
+services:
+  frontend:
+    build: frontend
+    ports:
+    - 8080:80
+  backend:
+    build: backend
+```
+The compose file defines an application with two services `frontend` and `backend`.
+When deploying the application, docker-compose maps port 80 of the frontend service container to port 8080 of the host as specified in the file.
+Make sure port 8080 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "nginx-golang_default" with the default driver
+Building backend
+Step 1/7 : FROM golang:1.13 AS build
+1.13: Pulling from library/golang
+...
+Successfully built 4b24f27138cc
+Successfully tagged nginx-golang_frontend:latest
+WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating nginx-golang_backend_1 ... done
+Creating nginx-golang_frontend_1 ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
+8bd5b0d78e73        nginx-golang_frontend   "nginx -g 'daemon of…"   53 seconds ago      Up 52 seconds       0.0.0.0:8080->80/tcp   nginx-golang_frontend_1
+56f929c240a0        nginx-golang_backend    "/usr/local/bin/back…"   53 seconds ago      Up 53 seconds                              nginx-golang_backend_1
+```
+
+After the application starts, navigate to `http://localhost:8080` in your web browser or run:
+```
+$ curl localhost:8080
+
+          ##         .
+    ## ## ##        ==
+ ## ## ## ## ##    ===
+/"""""""""""""""""\___/ ===
+{                       /  ===-
+\______ O           __/
+ \    \         __/
+  \____\_______/
+
+	
+Hello from Docker!
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+```

samples/nginx-gohttp_2/docker-compose.yml → samples/nginx-golang/docker-compose.yml

@@ -1,5 +1,5 @@
 
-version: "3.6"
+version: "3.7"
 services:
   frontend:
     build: frontend    

samples/react-express-mysql/README.md

@@ -0,0 +1,87 @@
+## Compose sample application
+### React application with a NodeJS backend and a MySQL database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   ...
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+├── frontend
+│   ├── ...
+│   └── Dockerfile
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  db:
+    image: postgres
+    ...
+  frontend:
+    build: frontend
+    ports:
+    - 80:9000
+    ...
+```
+The compose file defines an application with three services `frontend`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the frontend service container to port 9000 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "react-express-mysql_default" with the default driver
+Building backend
+Step 1/16 : FROM node:10
+ ---> aa6432763c11
+...
+Successfully tagged react-express-mysql_frontend:latest
+WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating react-express-mysql_db_1 ... done
+Creating react-express-mysql_backend_1 ... done
+Creating react-express-mysql_frontend_1 ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE                           COMMAND                  CREATED             STATUS              PORTS                NAMES
+5e3ecd0289c0        nginx-golang-postgres_proxy     "nginx -g 'daemon of…"   48 seconds ago      Up 48 seconds       0.0.0.0:80->80/tcp   nginx-golang-postgres_proxy_1
+ffa1410b1c8a        nginx-golang-postgres_backend   "/server"                49 seconds ago      Up 48 seconds       8000/tcp             nginx-golang-postgres_backend_1
+e63be7db7cbc        postgres                        "docker-entrypoint.s…"   49 seconds ago      Up 49 seconds       5432/tcp             nginx-golang-postgres_db_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser to get a colorful message.
+```
+My New React App
+```
+
+The backend service container has the port 80 mapped to 8080 on the host.
+```
+$ curl localhost:8080
+Hello Docker World
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping react-express-mysql_frontend_1 ... done
+Stopping react-express-mysql_backend_1  ... done
+Stopping react-express-mysql_db_1       ... done
+Removing react-express-mysql_frontend_1 ... done
+Removing react-express-mysql_backend_1  ... done
+Removing react-express-mysql_db_1       ... done
+Removing network react-express-mysql_default
+
+```

samples/react-express-mysql/frontend/Dockerfile.production

@@ -1,12 +0,0 @@
-FROM node:10 as build
-
-RUN mkdir /project
-WORKDIR /project
-COPY . .
-RUN yarn install
-RUN yarn run package
-
-FROM nginx:1.13-alpine
-
-COPY config/nginx.conf /etc/nginx/conf.d/default.conf
-COPY --from=build /project/dist /usr/share/nginx/html

samples/react-java-mysql/README.md

@@ -0,0 +1,80 @@
+## Compose sample application
+### React application with a NodeJS backend and a MySQL database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   ...
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+├── frontend
+│   ├── ...
+│   └── Dockerfile
+└── README.md
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+services:
+  backend:
+    build: backend
+    ...
+  db:
+    image: mysql:5.7
+    ...
+  frontend:
+    build: frontend
+    ports:
+    - 80:9000
+    ...
+```
+The compose file defines an application with three services `frontend`, `backend` and `db`.
+When deploying the application, docker-compose maps port 80 of the frontend service container to port 9000 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "react-java-mysql_default" with the default driver
+Building backend
+Step 1/10 : FROM maven:3.5-jdk-9 AS build
+...
+Successfully tagged react-java-mysql_frontend:latest
+WARNING: Image for service frontend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating react-java-mysql_frontend_1 ... done
+Creating react-java-mysql_db_1       ... done
+Creating react-java-mysql_backend_1  ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+ONTAINER ID        IMAGE                       COMMAND                  CREATED             STATUS              PORTS                  NAMES
+a63dee74d79e        react-java-mysql_backend    "java -Djava.securit…"   39 seconds ago      Up 37 seconds                              react-java-mysql_backend_1
+6a7364c0812e        react-java-mysql_frontend   "docker-entrypoint.s…"   39 seconds ago      Up 33 seconds       0.0.0.0:80->9000/tcp   react-java-mysql_frontend_1
+b176b18fbec4        mysql:5.7                   "docker-entrypoint.s…"   39 seconds ago      Up 37 seconds       3306/tcp, 33060/tcp    react-java-mysql_db_1
+e63be7db7cbc        postgres                    "docker-entrypoint.s…"   2 hours ago         Up 16 minutes       5432/tcp               nginx-golang-postgres_db_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser to get a colorful message.
+```
+My New React App
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping react-java-mysql_backend_1  ... done
+Stopping react-java-mysql_frontend_1 ... done
+Stopping react-java-mysql_db_1       ... done
+Removing react-java-mysql_backend_1  ... done
+Removing react-java-mysql_frontend_1 ... done
+Removing react-java-mysql_db_1       ... done
+Removing network react-java-mysql_default
+```

samples/sparkjava-mysql/README.md

@@ -0,0 +1,70 @@
+## Compose sample application
+### Java Spark application with MySQL database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   └── ...
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+└── README.md
+
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+version: "3.7"
+services:
+  backend:
+    build: backend
+    ports:
+    - 80:8080
+  db:
+    image: mysql:5.7
+    ...
+```
+The compose file defines an application with two services `backend` and `db`.
+When deploying the application, docker-compose maps port 8080 of the backend service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "sparkjava-mysql_default" with the default driver
+Building backend
+...
+Successfully tagged sparkjava-mysql_backend:latest
+WARNING: Image for service backend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating sparkjava-mysql_db_1      ... done
+Creating sparkjava-mysql_backend_1 ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE                     COMMAND                  CREATED             STATUS              PORTS                  NAMES
+ee1e4f05d9f6        sparkjava-mysql_backend   "/bin/sh -c 'java -j…"   44 seconds ago      Up 43 seconds       0.0.0.0:80->8080/tcp   sparkjava-mysql_backend_1
+716025ddf65b        mysql:5.7                 "docker-entrypoint.s…"   44 seconds ago      Up 43 seconds       3306/tcp, 33060/tcp    sparkjava-mysql_db_1
+```
+
+After the application starts, run:
+```
+$ curl localhost:80
+["Blog post #0","Blog post #1","Blog post #2","Blog post #3","Blog post #4"]
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping sparkjava-mysql_backend_1 ... done
+Stopping sparkjava-mysql_db_1      ... done
+Removing sparkjava-mysql_backend_1 ... done
+Removing sparkjava-mysql_db_1      ... done
+Removing network sparkjava-mysql_default
+```

samples/sparkjava-mysql/docker-compose.yaml

@@ -2,7 +2,6 @@ version: "3.7"
 services:
   backend:
     build: backend
-    image: docker.io/docker/back
     ports:
     - 80:8080
     secrets:

samples/sparkjava/README.md

@@ -0,0 +1,62 @@
+## Compose sample application
+### Spark Java
+
+Project structure:
+```
+.
+├── docker-compose.yaml
+├── README.md
+└── sparkjava
+    ├── Dockerfile
+    └── ...
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+version: "3.7"
+services:
+  sparkjava:
+    build: sparkjava
+    ports:
+    - 80:8080
+```
+The compose file defines an application with one service `sparkjava`.
+When deploying the application, docker-compose maps port 8080 of the sparkjava service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "sparkjava_default" with the default driver
+Building sparkjava
+Step 1/9 : FROM maven:3.5-jdk-8-alpine AS build
+3.5-jdk-8-alpine: Pulling from library/maven
+...
+Successfully tagged sparkjava_sparkjava:latest
+WARNING: Image for service sparkjava was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating sparkjava_sparkjava_1 ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE                 COMMAND                  CREATED             STATUS              PORTS                  NAMES
+5af94cb25394        sparkjava_sparkjava   "/bin/sh -c 'java -j…"   20 seconds ago      Up 19 seconds       0.0.0.0:80->8080/tcp   sparkjava_sparkjava_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser or run:
+```
+$ curl localhost:80
+Hello world
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping sparkjava_sparkjava_1 ... done
+Removing sparkjava_sparkjava_1 ... done
+Removing network sparkjava_default
+```

samples/spring-postgres/README.md

@@ -0,0 +1,80 @@
+## Compose sample application
+### Java application with Spring framework and a Postgres database
+
+Project structure:
+```
+.
+├── backend
+│   ├── Dockerfile
+│   └── ...
+├── db
+│   └── password.txt
+├── docker-compose.yaml
+└── README.md
+
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+version: "3.7"
+services:
+  backend:
+    build: backend
+    ports:
+    - 80:8080
+  db:
+    image: postgres
+    ...
+```
+The compose file defines an application with two services `backend` and `db`.
+When deploying the application, docker-compose maps port 8080 of the backend service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "spring-postgres_default" with the default driver
+Building backend
+Step 1/11 : FROM maven:3.5-jdk-9 AS build
+3.5-jdk-9: Pulling from library/maven
+...
+Successfully tagged spring-postgres_backend:latest
+WARNING: Image for service backend was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating spring-postgres_backend_1 ... done
+Creating spring-postgres_db_1      ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE                     COMMAND                  CREATED             STATUS              PORTS                  NAMES
+56236f640eaa        postgres                  "docker-entrypoint.s…"   29 seconds ago      Up 28 seconds       5432/tcp               spring-postgres_db_1
+6e69472dc2c0        spring-postgres_backend   "java -Djava.securit…"   29 seconds ago      Up 28 seconds       0.0.0.0:80->8080/tcp   spring-postgres_backend_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browse or run:
+```
+$ curl localhost:80
+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Getting Started: Serving Web Content</title>
+  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+</head>
+<body>
+	<p>Hello from Docker!</p>
+</body>
+```
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping spring-postgres_db_1      ... done
+Stopping spring-postgres_backend_1 ... done
+Removing spring-postgres_db_1      ... done
+Removing spring-postgres_backend_1 ... done
+Removing network spring-postgres_default
+```

samples/vuejs/README.md

@@ -0,0 +1,62 @@
+## Compose sample application
+### VueJS 
+
+Project structure:
+```
+.
+├── docker-compose.yaml
+├── README.md
+└── vuejs
+    ├── Dockerfile
+    └── ...
+```
+
+[_docker-compose.yaml_](docker-compose.yaml)
+```
+version: "3.7"
+services:
+  web:
+    build: vuejs
+    ports:
+    - 80:8080
+    volumes:
+    - ./vuejs:/project
+    - /project/node_modules
+```
+The compose file defines an application with one service `sparkjava`.
+When deploying the application, docker-compose maps port 8080 of the web service container to port 80 of the host as specified in the file.
+Make sure port 80 on the host is not already being in use.
+
+## Deploy with docker-compose
+
+```
+$ docker-compose up -d
+Creating network "vuejs_default" with the default driver
+Building web
+Step 1/8 : FROM node:10
+...
+Successfully tagged vuejs_web:latest
+WARNING: Image for service web was built because it did not already exist. To rebuild this image you must use `docker-compose build` or `docker-compose up --build`.
+Creating vuejs_web_1 ... done
+```
+
+## Expected result
+
+Listing containers must show two containers running and the port mapping as below:
+```
+$ docker ps
+CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                  NAMES
+701c02bb97b1        vuejs_web           "docker-entrypoint.s…"   49 seconds ago      Up 46 seconds       0.0.0.0:80->8080/tcp   vuejs_web_1
+```
+
+After the application starts, navigate to `http://localhost:80` in your web browser.
+
+![page](output.jpg)
+
+Stop and remove the containers
+```
+$ docker-compose down
+Stopping vuejs_web_1 ... done
+Removing vuejs_web_1 ... done
+Removing network vuejs_default
+```

samples/vuejs/docker-compose.yaml

@@ -1,6 +1,6 @@
 version: "3.7"
 services:
-  vuejs:
+  web:
     build: vuejs
     ports:
     - 80:8080