Docker 404 error

Actually, may be a bug in either curl 7.50 or one of the libraries it uses. Running the same on a different version of curl (in a ubuntu 16.04 container);

curl --version
curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets

Works without issues:

root@442c6432204a:/# curl -v --unix-socket /var/run/docker.sock "http:/containers/json"
*   Trying /var/run/docker.sock...
* Connected to http (/var/run/docker.sock) port 80 (#0)
> GET /containers/json HTTP/1.1
> Host: http
> User-Agent: curl/7.47.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Content-Type: application/json
< Server: Docker/1.13.0-dev (linux)
< Date: Fri, 16 Sep 2016 10:11:52 GMT
< Content-Length: 906
<
[{"Id":"442c6432204a7c35c34801051257aa23280f91fc9651817304b5c2561438c43d","Names":["/fervent_yalow"],"Image":"ubuntu:16.04","ImageID":"sha256:bd3d4369aebc4945be269859df0e15b1d32fefa2645f5699037d7d8c6b415a10","Command":"/bin/bash","Created":1474020647,"Ports":[],"Labels":{},"State":"running","Status":"Up About a minute","HostConfig":{"NetworkMode":"default"},"NetworkSettings":{"Networks":{"bridge":{"IPAMConfig":null,"Links":null,"Aliases":null,"NetworkID":"6e1b8e7330078255b697d875ebe4c3c53ccbed5d3ea8baaea2709dffa51f3be3","EndpointID":"f71e6b7c65421d39612b18b525c391590fd53e1648b5f5ffe46238497d821e0e","Gateway":"172.18.0.1","IPAddress":"172.18.0.2","IPPrefixLen":16,"IPv6Gateway":"","GlobalIPv6Address":"","GlobalIPv6PrefixLen":0,"MacAddress":"02:42:ac:12:00:02"}}},"Mounts":[{"Type":"bind","Source":"/var/run/docker.sock","Destination":"/var/run/docker.sock","Mode":"","RW":true,"Propagation":""}]}]
* Connection #0 to host http left intact

I recently updated my docker from 1.4 to 1.5 (with the package lxc_docker).

Since then, docker daemon sends an error like this (for every command):

$ docker version 
Client version: 1.5.0
Client API version: 1.17
Go version (client): go1.4.1
Git commit (client): a8a31ef
OS/Arch (client): linux/amd64
FATA[0000] Error response from daemon: 404 page not found 

But if I use the previous version of the client, i get the fine answer:

$ /usr/bin/docker-old version 
Client version: 1.4.0
Client API version: 1.16
Go version (client): go1.3.3
Git commit (client): 4595d4f
OS/Arch (client): linux/amd64
Server version: 1.5.0
Server API version: 1.17
Go version (server): go1.4.1
Git commit (server): a8a31ef

It seems to be proxy settings (HTTP_PROXY and HTTPS_PROXY variables are used on this server), and I can solve the problem by setting the NO_PROXY variable:

$ export NO_PROXY="/var/run/docker.sock"
$ docker version  
Client version: 1.5.0
Client API version: 1.17
Go version (client): go1.4.1
Git commit (client): a8a31ef
OS/Arch (client): linux/amd64
Server version: 1.5.0
Server API version: 1.17
Go version (server): go1.4.1
Git commit (server): a8a31ef

Do you know where this problem really come from? And how to cleanly solve it?

It’s a pretty standard docker container/setup

index.php is a standard call to phpinfo(); only docker compose fails to serve this file in a browser?

Dockerfile

FROM php:7.4-fpm

# Copy composer.lock and composer.json
COPY composer.lock composer.json /var/www/

# Set working directory
WORKDIR /var/www

# Install dependencies
RUN apt-get update && apt-get install -y 
    build-essential 
    libpng-dev 
    libjpeg62-turbo-dev 
    libfreetype6-dev 
    locales 
    libzip-dev 
    zip 
    jpegoptim optipng pngquant gifsicle 
    vim 
    unzip 
    git 
    curl

# Clear cache
RUN apt-get clean && rm -rf /var/lib/apt/lists/*

# Install extensions
RUN docker-php-ext-install pdo_mysql zip exif pcntl
#RUN docker-php-ext-configure gd --with-gd --with-freetype-dir=/usr/include/ --with-jpeg-dir=/usr/include/ --with-png-dir=/usr/include/
RUN docker-php-ext-configure gd --with-freetype --with-jpeg
#    PHP 7.4 ^^
RUN docker-php-ext-install gd

# Install composer
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

# Add user for laravel application
RUN groupadd -g 1000 www
RUN useradd -u 1000 -ms /bin/bash -g www www

# Copy existing application directory contents
COPY . /var/www

# Copy existing application directory permissions
COPY --chown=www:www . /var/www

# Change current user to www
USER www

# Expose port 9000 and start php-fpm server
EXPOSE 9000
CMD ["php-fpm"]

docker-compose.yaml

version: '3'
services:

  #PHP Service
  app_a:
    build:
      context: .
      dockerfile: Dockerfile
    image: digitalocean.com/php
    container_name: app_a
    restart: unless-stopped
    tty: true
    environment:
      SERVICE_NAME: app_a
      SERVICE_TAGS: dev
    working_dir: /var/www
    volumes:
      - ./:/var/www
      - ./php/local.ini:/usr/local/etc/php/conf.d/local.ini
    networks:
      - app-network

  #Nginx Service
  webserver_a:
    image: nginx:alpine
    container_name: webserver_a
    restart: unless-stopped
    tty: true
    ports:
      - "8211:80"
      - "443:443"
    volumes:
      - ./:/var/www
      - ./nginx/conf.d/:/etc/nginx/conf.d/
    networks:
      - app-network

  #MySQL Service
  db_a:
    image: mysql:5.7.22
    container_name: db_a
    restart: unless-stopped
    tty: true
    ports:
      - "3236:3306"
    environment:
      MYSQL_DATABASE: my_local
      MYSQL_ROOT_PASSWORD: password
      SERVICE_TAGS: dev
      SERVICE_NAME: mysql
    volumes:
      - dbdata:/var/lib/mysql
      - ./mysql/my.cnf:/etc/mysql/my.cnf
    networks:
      - app-network

#Docker Networks
networks:
  app-network:
    driver: bridge

#Volumes
volumes:
  dbdata:
    driver: local

All the docker service containers are running fine and I’m able to log into them at the shell using docker exec -it 3a234d1f384e sh for example.

If you could assist me in serving the file in the browser?, that’d be great. Thanks in advance.

Edit

/nginx/conf.d/app.conf

server {
    listen 80;
    index index.php index.html;
    error_log  /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;
    root /var/www/public;
    location ~ .php$ {
        try_files $uri =404;
        fastcgi_split_path_info ^(.+.php)(/.+)$;
        fastcgi_pass app_a:9000;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_param PATH_INFO $fastcgi_path_info;
    }
    location / {
        try_files $uri $uri/ /index.php?$query_string;
        gzip_static on;
    }
}

How to fix the HTTP Status 404 — Not Found Error for the Docker Tomcat image? 

While trying to pull Tomcat image from Docker Hub to install Tomcat server on Amazon EC2 Linux virtual machine by executing the below commands in the terminal:

docker pull tomcat 

docker run —name tomcat-server -p 8080:8080 tomcat:latest