nodejs，redis，npm和docker-compose设置 [英] nodejs, redis, npm and docker-compose setup

问题描述

我想使用docker和docker-compose安装nodejs，npm，redis和memcached.但是我并没有只安装Redis(通过文档)./p>

我接下来做了:1安装docker，docker-compose2创建文件夹:〜/app目录中的3个创建了Dockerfile，docker-compose.yml，app.py，requirements.txt

requirements.txt:

redis

app.py :

从烧瓶导入烧瓶的

 从redis导入Redisapp = Flask(__ name__)redis = Redis(主机='redis'，端口= 6379)@ app.route('/')def hello():count = redis.incr('hits')返回"Hello World！我见过{}次.\ n'.format(count)如果__name__ =="__main__":app.run(host ="0.0.0.0"，debug = True) 

Dockerfile :

  FROM重做:3.2稳定添加 ./应用程序WORKDIR/appRUN pip install -r requirements.txtCMD ["app.py"] 

docker-compose.yml

 版本:"2"服务:网络:建造: .端口:-"5000:5000"数量:- .:/代码Redis:图片:"redis:alpine" 

运行compose docker-compose up -d 并出现错误

无法通过http + docker://localunixsocket连接到Docker守护程序-它在运行吗?如果它位于非标准位置，请指定URL使用DOCKER_HOST环境变量.

出什么问题了?如何设置至少一个Redis?

PS (如果您知道如何使用docker-compose nodejs npm和memcached进行安装)我将很感激

解决方案

在命令前添加 sudo 怎么样?

I would like install nodejs, npm, redis and memcached with docker and docker-compose. But i did not install only redis (by document).

I did next: 1 install docker, docker-compose 2 create folder: ~/app 3 in catalog was create Dockerfile, docker-compose.yml, app.py,requirements.txt

requirements.txt:

redis

app.py:

from flask import Flask
from redis import Redis

app = Flask(__name__)
redis = Redis(host='redis', port=6379)

@app.route('/')
def hello():
count = redis.incr('hits')
return 'Hello World! I have been seen {} times.\n'.format(count)

if __name__ == "__main__":
app.run(host="0.0.0.0", debug=True)

Dockerfile:

FROM redis:3.2-stable
ADD . /app
WORKDIR /app
RUN pip install -r requirements.txt
CMD [ "app.py"]

docker-compose.yml

version: '2'
services:
  web:
    build: .
    ports:
     - "5000:5000"
    volumes:
     - .:/code
  redis:
    image: "redis:alpine"

run compose docker-compose up -d and have error

Couldn't connect to Docker daemon at http+docker://localunixsocket - is it running? If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.

What is problem? How setup at least one redis ?

P.S. If you know how install with docker-compose nodejs npm and memcached I will be grateful

解决方案

How about add sudo before your command?

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