Commit b0dce38

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use docker --link to link a two container(flask and redis) app

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	`1`	`+{`
	`2`	`+ "python.linting.pylintEnabled": false,`
	`3`	`+ "python.autoComplete.extraPaths": [`
	`4`	`+ "/usr/local/lib/python3.6/site-packages",`
	`5`	`+ "/usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/Versions/3.6/lib/python3.6"`
	`6`	`+ ]`
	`7`	`+}`

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`@@ -80,3 +80,21 @@ use Dcokerfile to create a containerize python app`
`80`	`80`	`> docker exec -it <container id> bash`
`81`	`81`	`> ps aux`
`82`	`82`	```
	`83`	`+use Dcokerfile to create a containerize python app`
	`84`	+```
	`85`	`+ > git clone -b v0.1 git@github.com:smalltide/dockerapp.git dockerapp`
	`86`	`+ > cd dockerapp`
	`87`	`+ > docker build -t dockerapp:v0.1 .`
	`88`	`+ > docker run -d -p 5000:5000 dockerapp:v0.1`
	`89`	`+ > docker exec -it <container id> bash`
	`90`	`+ > ps aux`
	`91`	+```
	`92`	`+use Dcokerfile to create a two container(flask and redis) app`
	`93`	+```
	`94`	`+ > git clone -b v0.3 git@github.com:smalltide/dockerapp.git dockerapp0.3`
	`95`	`+ > cd dockerapp0.3`
	`96`	`+ > docker build -t dockerapp:v0.3 .`
	`97`	`+ > docker images`
	`98`	`+ > docker run -d --name redis redis:3.2.0`
	`99`	`+ > docker run -d -p 5000:5000 --link redis dockerapp:v0.3`
	`100`	+```

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	`1`	`+from flask import Flask, request, render_template`
	`2`	`+import redis`
	`3`	`+`
	`4`	`+app = Flask(__name__)`
	`5`	`+default_key = '1'`
	`6`	`+cache = redis.StrictRedis(host='redis', port='6379', db=0)`
	`7`	`+cache.set(default_key, 'one')`
	`8`	`+`
	`9`	`+@app.route('/', methods=['GET', 'POST'])`
	`10`	`+def mainpage():`
	`11`	`+`
	`12`	`+ key = default_key`
	`13`	`+ if 'key' in request.form:`
	`14`	`+ key = request.form['key']`
	`15`	`+`
	`16`	`+ if request.method == 'POST' and request.form['submit'] == 'save':`
	`17`	`+ cache.set(key, request.form['cache_value'])`
	`18`	`+`
	`19`	`+ cache_value = None`
	`20`	`+ if cache.get(key):`
	`21`	`+ cache_value = cache.get(key).decode('utf-8')`
	`22`	`+`
	`23`	`+ return render_template('index.html', key=key, cache_value=cache_value)`
	`24`	`+`
	`25`	`+if __name__ == '__main__':`
	`26`	`+ app.run(host='0.0.0.0')`

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	`1`	`+<html>`
	`2`	`+ <head>`
	`3`	`+ <title>key value lookup service</title>`
	`4`	`+ </head>`
	`5`	`+ <body>`
	`6`	`+ <form method="POST">`
	`7`	`+ <input type="text" name="key" value={{ key }}>`
	`8`	`+ <input type="text" name="cache_value" value={{ cache_value }}>`
	`9`	`+ <input type="submit" name="submit" value="load">`
	`10`	`+ <input type="submit" name="submit" value="save">`
	`11`	`+ </form>`
	`12`	`+ </body>`
	`13`	`+</html>`

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