问题

Introduction

I want to create a site that is powered by php-fpm, nginx and docker and I want to have php-fpm and nginx on separate containers. To do this, I followed this tutorial but am stuck now when accessing my web server under localhost:8000. My browser displays a 502 and my /var/log/nginx/project_error.log is full with

[error] 7#7: *1 connect() failed (111: Connection refused) while connecting to upstream, client: 172.20.0.1, server: app, request: "GET / HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "localhost:8000"

Searched answers

I already searched a bit for this topic and found these threads:

https://serverfault.com/questions/827781/docker-nginx-and-php7-error-111-connection-refused-while-connecting-to-upstream

https://serverfault.com/questions/546349/what-is-the-difference-between-using-upstream-and-location-for-php-fpm

https://serverfault.com/questions/840970/nginx-connect-failed-111-connection-refused-while-connecting-to-upstream

However, none of them solved my problems.

Files

I created a GitHub repository containing all files, so anyone can simply check it out there (I think it's better than having all files dumped in here). To do that, simply do

git clone git@github.com:tzfrs/dockertest.git

mkdir -p citynavigator/public

touch citynavigator/public/index.php

In addition to that, here is the code

General

docker-compose.yml

version: "2"

services:

db:

image: mysql:5.6

ports:

- "3306:3306"

environment:

- MYSQL_ROOT_PASSWORD=citynavigatorrootpass

- MYSQL_DATABASE=citynavigator

- MYSQL_USER=citynavigator

- MYSQL_PASSWORD=citynavigatorpass

volumes:

- /var/lib/mysql

nginx:

image: nginx:latest

ports:

- "8000:80"

volumes:

- ../citynavigator:/var/www/app

- ./nginx/nginx.conf:/etc/nginx/nginx.conf

- ./nginx/app.conf:/etc/nginx/conf.d/default.conf

- ./nginx/fastcgi_params:/etc/nginx/fastcgi_params

links:

- php

networks:

- code-network

php:

build: fpm/

volumes:

- ../citynavigator:/var/www/app

networks:

- code-network

networks:

code-network:

driver: bridge

fpm/Dockerfile

FROM php:7.2-fpm

LABEL maintainer="Theo Tzaferis"

USER root

RUN rm /usr/local/etc/php-fpm.d/docker.conf \

&& rm /usr/local/etc/php-fpm.d/www.conf \

&& rm /usr/local/etc/php-fpm.d/www.conf.default \

&& rm /usr/local/etc/php-fpm.d/zz-docker.conf \

&& rm -rf /var/www/html

ADD app.pool.conf /usr/local/etc/php-fpm.d/app.pool.conf

fpm/app.pool.conf

[app]

user = www-data

group = www-data

listen = 127.0.0.1:9000

pm = dynamic

pm.max_children = 20

pm.start_servers = 2

pm.min_spare_servers = 1

pm.max_spare_servers = 3

catch_workers_output = yes

nginx/app.conf

upstream php-upstream {

server 127.0.0.1:9000;

}

server {

server_name app;

root /var/www/app/public;

location / {

try_files $uri /index.php$is_args$args;

}

location ~ ^/index\.php(/|$) {

fastcgi_pass php-upstream;

fastcgi_split_path_info ^(.+\.php)(/.*)$;

include fastcgi_params;

# optionally set the value of the environment variables used in the application

# fastcgi_param APP_ENV prod;

# fastcgi_param APP_SECRET ;

# fastcgi_param DATABASE_URL "mysql://db_user:db_pass@host:3306/db_name";

# When you are using symlinks to link the document root to the

# current version of your application, you should pass the real

# application path instead of the path to the symlink to PHP

# FPM.

# Otherwise, PHP's OPcache may not properly detect changes to

# your PHP files (see https://github.com/zendtech/ZendOptimizerPlus/issues/126

# for more information).

fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;

fastcgi_param DOCUMENT_ROOT $realpath_root;

# Prevents URIs that include the front controller. This will 404:

# http://domain.tld/index.php/some-path

# Remove the internal directive to allow URIs like this

internal;

}

# return 404 for all other php files not matching the front controller

# this prevents access to other php files you don't want to be accessible.

location ~ \.php$ {

return 404;

}

error_log /var/log/nginx/project_error.log;

access_log /var/log/nginx/project_access.log;

}

nginx/fastcgi_params

fastcgi_buffer_size 128k;

fastcgi_buffers 4 256k;

fastcgi_busy_buffers_size 256k;

fastcgi_param QUERY_STRING $query_string;

fastcgi_param REQUEST_METHOD $request_method;

fastcgi_param CONTENT_TYPE $content_type;

fastcgi_param CONTENT_LENGTH $content_length;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

fastcgi_param SCRIPT_NAME $fastcgi_script_name;

fastcgi_param PATH_INFO $fastcgi_path_info;

fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;

fastcgi_param REQUEST_URI $request_uri;

fastcgi_param DOCUMENT_URI $document_uri;

fastcgi_param DOCUMENT_ROOT $document_root;

fastcgi_param SERVER_PROTOCOL $server_protocol;

fastcgi_param GATEWAY_INTERFACE CGI/1.1;

fastcgi_param SERVER_SOFTWARE nginx/$nginx_version;

fastcgi_param REMOTE_ADDR $remote_addr;

fastcgi_param REMOTE_PORT $remote_port;

fastcgi_param SERVER_ADDR $server_addr;

fastcgi_param SERVER_PORT $server_port;

fastcgi_param SERVER_NAME $server_name;

fastcgi_param HTTPS $https;

# PHP only, required if PHP was built with --enable-force-cgi-redirect

# fastcgi_param REDIRECT_STATUS 200;

# Allow 10 minute script execution time

fastcgi_read_timeout 600s;

nginx/nginx.conf

user www-data;

worker_processes 4;

pid /run/nginx.pid;

events {

worker_connections 2048;

multi_accept on;

use epoll;

}

http {

server_tokens off;

sendfile on;

tcp_nopush on;

tcp_nodelay on;

keepalive_timeout 15;

types_hash_max_size 2048;

include /etc/nginx/mime.types;

default_type application/octet-stream;

access_log off;

error_log off;

gzip on;

gzip_disable "msie6";

gzip_vary on;

gzip_proxied any;

gzip_comp_level 6;

gzip_buffers 16 8k;

gzip_http_version 1.1;

gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/javascript image/svg+xml;

include /etc/nginx/conf.d/*.conf;

open_file_cache max=100;

client_max_body_size 30m;

}

回答1:

This is cause the 127.0.0.1 should be the name of your php service not the localhost

So change

fastcgi_pass php-upstream;

to

fastcgi_pass php:9000;

Or similar in the used upstream directive.

php is reachable from your nginx if its in the same network (which obvously is through code-network)

来源：https://stackoverflow.com/questions/51122146/connect-failed-111-connection-refused-while-connecting-to-upstream-for-ngin