From a410c8bc62e197456b2264c764daf046dbf643bb Mon Sep 17 00:00:00 2001
From: Anca Iordache <anca.iordache@docker.com>
Date: Thu, 5 Mar 2020 17:28:07 +0100
Subject: [PATCH] add nginx-flask-mysql application sample

Signed-off-by: Anca Iordache <anca.iordache@docker.com>
---
 samples/nginx-flask-mysql/backend/Dockerfile  | 10 +++++++
 samples/nginx-flask-mysql/backend/hello.py    |  6 +++++
 .../backend/requirements.txt                  |  6 +++++
 samples/nginx-flask-mysql/db/password.txt     |  1 +
 samples/nginx-flask-mysql/docker-compose.yaml | 27 +++++++++++++++++++
 samples/nginx-flask-mysql/proxy/Dockerfile    |  2 ++
 samples/nginx-flask-mysql/proxy/conf          |  8 ++++++
 7 files changed, 60 insertions(+)
 create mode 100755 samples/nginx-flask-mysql/backend/Dockerfile
 create mode 100755 samples/nginx-flask-mysql/backend/hello.py
 create mode 100755 samples/nginx-flask-mysql/backend/requirements.txt
 create mode 100644 samples/nginx-flask-mysql/db/password.txt
 create mode 100644 samples/nginx-flask-mysql/docker-compose.yaml
 create mode 100755 samples/nginx-flask-mysql/proxy/Dockerfile
 create mode 100755 samples/nginx-flask-mysql/proxy/conf

diff --git a/samples/nginx-flask-mysql/backend/Dockerfile b/samples/nginx-flask-mysql/backend/Dockerfile
new file mode 100755
index 0000000..190d518
--- /dev/null
+++ b/samples/nginx-flask-mysql/backend/Dockerfile
@@ -0,0 +1,10 @@
+FROM python:3.6-alpine3.7
+EXPOSE 5000
+ENV PYTHONUNBUFFERED 1
+RUN mkdir /code
+WORKDIR /code
+ADD requirements.txt /code/
+RUN pip install -r requirements.txt
+ADD . /code/
+ENV FLASK_APP hello.py
+CMD flask run --host=0.0.0.0
diff --git a/samples/nginx-flask-mysql/backend/hello.py b/samples/nginx-flask-mysql/backend/hello.py
new file mode 100755
index 0000000..a60da8d
--- /dev/null
+++ b/samples/nginx-flask-mysql/backend/hello.py
@@ -0,0 +1,6 @@
+from flask import Flask
+app = Flask(__name__)
+
+@app.route('/')
+def hello_world():
+    return 'Hello world'
diff --git a/samples/nginx-flask-mysql/backend/requirements.txt b/samples/nginx-flask-mysql/backend/requirements.txt
new file mode 100755
index 0000000..34ffbb7
--- /dev/null
+++ b/samples/nginx-flask-mysql/backend/requirements.txt
@@ -0,0 +1,6 @@
+click==6.7
+Flask==1.0.2
+itsdangerous==0.24
+Jinja2==2.10
+MarkupSafe==1.0
+Werkzeug==0.14.1
diff --git a/samples/nginx-flask-mysql/db/password.txt b/samples/nginx-flask-mysql/db/password.txt
new file mode 100644
index 0000000..1f444cb
--- /dev/null
+++ b/samples/nginx-flask-mysql/db/password.txt
@@ -0,0 +1 @@
+db-78n9n
\ No newline at end of file
diff --git a/samples/nginx-flask-mysql/docker-compose.yaml b/samples/nginx-flask-mysql/docker-compose.yaml
new file mode 100644
index 0000000..a9f740f
--- /dev/null
+++ b/samples/nginx-flask-mysql/docker-compose.yaml
@@ -0,0 +1,27 @@
+version: "3.7"
+services:
+  backend:
+    build: backend
+    depends_on: 
+    - db
+  db:
+    environment:
+      MYSQL_DATABASE: example
+      MYSQL_ROOT_PASSWORD_FILE: /run/secrets/db-password
+    image: mysql:5.7
+    restart: always
+    secrets:
+    - db-password
+    volumes:
+    - db-data:/var/lib/mysql
+  proxy:
+    build: proxy
+    ports:
+    - 80:80
+    depends_on: 
+    - backend
+volumes:
+  db-data: {}
+secrets:
+  db-password:
+    file: db/password.txt
diff --git a/samples/nginx-flask-mysql/proxy/Dockerfile b/samples/nginx-flask-mysql/proxy/Dockerfile
new file mode 100755
index 0000000..f5760d0
--- /dev/null
+++ b/samples/nginx-flask-mysql/proxy/Dockerfile
@@ -0,0 +1,2 @@
+FROM nginx:1.13-alpine
+COPY conf /etc/nginx/conf.d/default.conf
\ No newline at end of file
diff --git a/samples/nginx-flask-mysql/proxy/conf b/samples/nginx-flask-mysql/proxy/conf
new file mode 100755
index 0000000..2a272bc
--- /dev/null
+++ b/samples/nginx-flask-mysql/proxy/conf
@@ -0,0 +1,8 @@
+server {
+    listen       80;
+    server_name  localhost;
+    location / {
+        proxy_pass   http://backend:5000;
+    }
+
+}