When I try to run a docker container that starts jupyter with the os command inside a neo4J script or docker image I get a network problem. I have ERR_SOCKET_NOT_CONNECTED or ERR_CONNECTION_REFUSED

ERR_SOCKET_NOT_CONNECTED

When I run jupyter notebook everything seems to work fine in the terminal:

bash-5.1$ docker run -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix seriousgame:latest
Run bokeh server? ([y]/n) 
n
Run jupyter server? ([y]/n) 
y
[I 10:14:20.667 NotebookApp] Writing notebook server cookie secret to /root/.local/share/jupyter/runtime/notebook_cookie_secret
[W 2021-12-13 10:14:20.942 LabApp] 'allow_root' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2021-12-13 10:14:20.942 LabApp] 'allow_root' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[I 2021-12-13 10:14:20.945 LabApp] JupyterLab extension loaded from /usr/local/lib/python3.6/dist-packages/jupyterlab
[I 2021-12-13 10:14:20.945 LabApp] JupyterLab application directory is /usr/local/share/jupyter/lab
[I 10:14:20.948 NotebookApp] Serving notebooks from local directory: /home/serious-game
[I 10:14:20.948 NotebookApp] Jupyter Notebook 6.4.6 is running at:
[I 10:14:20.948 NotebookApp] http://localhost:8888/?token=Ihavetohidethis,right?
[I 10:14:20.948 NotebookApp]  or http://127.0.0.1:8888/?token=Ihavetohidethis,right?
[I 10:14:20.948 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 10:14:20.950 NotebookApp] No web browser found: could not locate runnable browser.
[C 10:14:20.950 NotebookApp] 
    
    To access the notebook, open this file in a browser:
        file:///root/.local/share/jupyter/runtime/nbserver-8-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=Ihavetohidethis,right?
     or http://127.0.0.1:8888/?token=Ihavetohidethis,right?

But none of the links work... I think it's because jupyter cannot be accessed from the docker image. Because when I did it from the machine where there is jupyter I can access the notebook:

Jupyterlab is in the requirements, I don't know if it's enough:

bash-5.1$ cat requirements.txt 
bokeh
jupyterlab
matplotlib
networkx
pandas
scipy

The secure Dockerfile downloading requirements:

bash-5.1$ cat Dockerfile 
#############################################################################################################
#
#   Creation du container
#
##############################################################################################################

FROM nvidia/cuda:10.2-base-ubuntu18.04
MAINTAINER me

EXPOSE 5006
EXPOSE 8888

ENV DEBIAN_FRONTEND noninteractive
ENV WD=/home/serious-game/
WORKDIR ${WD}


# Add git and ssh
RUN apt-get -y update && \
    apt-get -y upgrade && \
    apt-get -y install git ssh pkg-config python3-pip python3-opencv

# Dépendances python
COPY requirements.txt  /requirements.txt
RUN cd / && \
     python3 -m pip install --upgrade pip && \
    pip3 install -r requirements.txt

RUN ls
COPY start.py /start.py
CMD ["/start.py"]
ENTRYPOINT ["python3"]

So it seems to be a network error because when I tried to move the notebook from the container's localhost I keep getting the error "This site can't be reached" ERR_SOCKET_NOT_CONNECTED.

inpt = input("Run jupyter server? ([y]/n) \n")
if inpt.upper() in ["YES", "Y", ""]:
    os.system("jupyter-notebook --ip 0.0.0.0 --allow-root")
    return

Here is the full result:

bash-5.1$ docker run -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix -p 8888:8888 seriousgame:latest
Run bokeh server? ([y]/n) 
n
Run jupyter server? ([y]/n) 

[I 09:45:21.148 NotebookApp] Writing notebook server cookie secret to /root/.local/share/jupyter/runtime/notebook_cookie_secret
[W 2021-12-16 09:45:21.416 LabApp] 'allow_root' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2021-12-16 09:45:21.416 LabApp] 'allow_root' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[I 2021-12-16 09:45:21.418 LabApp] JupyterLab extension loaded from /usr/local/lib/python3.6/dist-packages/jupyterlab
[I 2021-12-16 09:45:21.419 LabApp] JupyterLab application directory is /usr/local/share/jupyter/lab
[I 09:45:21.422 NotebookApp] Serving notebooks from local directory: /home/serious-game
[I 09:45:21.422 NotebookApp] Jupyter Notebook 6.4.6 is running at:
[I 09:45:21.422 NotebookApp] http://localhost:8888/?token=addd2ba3162ec37688def2cf63157864cd40b81cf4de42f8
[I 09:45:21.422 NotebookApp]  or http://127.0.0.1:8888/?token=addd2ba3162ec37688def2cf63157864cd40b81cf4de42f8
[I 09:45:21.422 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 09:45:21.424 NotebookApp] No web browser found: could not locate runnable browser.
[C 09:45:21.424 NotebookApp] 
    
    To access the notebook, open this file in a browser:
        file:///root/.local/share/jupyter/runtime/nbserver-8-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=addd2ba3162ec37688def2cf63157864cd40b81cf4de42f8
     or http://127.0.0.1:8888/?token=addd2ba3162ec37688def2cf63157864cd40b81cf4de42f8

ERR_CONNECTION_REFUSED

Interestingly I have a similar network issue with when running a neo4j docker image I can't get to the neo4j docker image it tried to run:

bash-5.1$ docker run neo4j
^[[1;5C2021-12-16 09:55:17.973+0000 INFO  Starting...
2021-12-16 09:55:18.312+0000 INFO  This instance is ServerId{d3a250fb} (d3a250fb-24b6-400d-82d2-5ff00740060f)
2021-12-16 09:55:19.163+0000 INFO  ======== Neo4j 4.4.1 ========
2021-12-16 09:55:20.406+0000 INFO  Initializing system graph model for component 'security-users' with version -1 and status UNINITIALIZED
2021-12-16 09:55:20.410+0000 INFO  Setting up initial user from defaults: neo4j
2021-12-16 09:55:20.411+0000 INFO  Creating new user 'neo4j' (passwordChangeRequired=true, suspended=false)
2021-12-16 09:55:20.422+0000 INFO  Setting version for 'security-users' to 3
2021-12-16 09:55:20.425+0000 INFO  After initialization of system graph model component 'security-users' have version 3 and status CURRENT
2021-12-16 09:55:20.429+0000 INFO  Performing postInitialization step for component 'security-users' with version 3 and status CURRENT
2021-12-16 09:55:20.739+0000 INFO  Bolt enabled on 0.0.0.0:7687.
2021-12-16 09:55:21.298+0000 INFO  Remote interface available at http://localhost:7474/
2021-12-16 09:55:21.300+0000 INFO  id: 6A9C435FEE30E82F3EF0611B5D98AB44CCF970739EA66D61896B3C801FA2A2B7
2021-12-16 09:55:21.300+0000 INFO  name: system
2021-12-16 09:55:21.301+0000 INFO  creationDate: 2021-12-16T09:55:19.614Z
2021-12-16 09:55:21.301+0000 INFO  Started.

And I get ERR_CONNECTION_REFUSED

I'll try a Django webapp and add the results.

Maybe there is a problem in the IP address?

bash-5.1$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether d8:bb:c1:79:cc:2e brd ff:ff:ff:ff:ff:ff
3: wlp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 64:6e:e0:f0:32:c3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.178/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp5s0
       valid_lft 168207sec preferred_lft 168207sec
    inet6 fe80::41c7:dafd:7a6:4f44/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:20:72:95:51 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:20ff:fe72:9551/64 scope link 
       valid_lft forever preferred_lft forever
10: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
    link/none 
    inet 192.168.254.99/24 brd 192.168.254.255 scope global noprefixroute tun0
       valid_lft forever preferred_lft forever
    inet6 fe80::7be4:d988:98c1:8551/64 scope link stable-privacy 
       valid_lft forever preferred_lft forever
18: veth6503edf@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether c2:c7:b8:5f:39:6f brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::c0c7:b8ff:fe5f:396f/64 scope link 
       valid_lft forever preferred_lft forever

So I can't get to the urls so far, any other ideas?

Volume is not insurance?

The colleague who left me this image tells me that the working directory must be mounted as a volume.

bash-5.1$ docker run -p 8888:8888 -it -e DISPLAY=$DISPLAY -v /home/ac/Documents/Work/serious-game seriousgame:latest 

But I get the same error ERR_SOCKET_NOT_CONNECTED

And it seems that it works for the correct directory, doesn't it?

[I 2021-12-13 10:14:20.945 LabApp] JupyterLab application directory is /usr/local/share/jupyter/lab
[I 10:14:20.948 NotebookApp] Serving notebooks from local directory: /home/serious-game

With the container port visible from the outside

docker run -p 8888:8888 -it -e DISPLAY=$DISPLAY -v /tmp/.X11-unix:/tmp/.X11-unix seriousgame:latest

But here is what the browser tells me:

Problems in IP addr?

bash-5.1$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
    link/ether d8:bb:c1:79:cc:2e brd ff:ff:ff:ff:ff:ff
3: wlp5s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 64:6e:e0:f0:32:c3 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.178/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp5s0
       valid_lft 168207sec preferred_lft 168207sec
    inet6 fe80::41c7:dafd:7a6:4f44/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:20:72:95:51 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:20ff:fe72:9551/64 scope link 
       valid_lft forever preferred_lft forever
10: tun0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 500
    link/none 
    inet 192.168.254.99/24 brd 192.168.254.255 scope global noprefixroute tun0
       valid_lft forever preferred_lft forever
    inet6 fe80::7be4:d988:98c1:8551/64 scope link stable-privacy 
       valid_lft forever preferred_lft forever
18: veth6503edf@if17: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether c2:c7:b8:5f:39:6f brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::c0c7:b8ff:fe5f:396f/64 scope link 
       valid_lft forever preferred_lft forever

I am working with Docker using nginx proxy reverse, I found an error that is probably from my configuration that I have when lifting containers.

When creating containers with subdomains for example: example.mydomain.com, without a certificate it executes well and raises the container just as I can display the html in the browser, but when raising a container with a domain: mydomain.com it marks an error in the 502 browser.

This is what you ran to set up a subdomain:

docker run -d --name example.midominio.com --expose 80  --net nginx-proxy --link mariadb:mariadb -v /home/ec2-user/userecommerce/$1/html:/var/www/html -e VIRTUAL_HOST=example.midominio.com -e VIRTUAL_PROTO=http -e VIRTUAL_PORT=80  -e HTTPS_METHOD=noredirect ecommercefya:v3

This is what you ran to raise a domain:

docker run -d --name midominio.com --expose 80 --expose 443 --net nginx-proxy --link mariadb:mariadb -v /home/ec2-user/userecommerce/midominio.com/html:/var/www/html -e VIRTUAL_HOST=midominio.com -e VIRTUAL_PROTO=http -e VIRTUAL_PORT=80 -e VIRTUAL_PROTO=https -e VIRTUAL_PORT=443 -e HTTPS_METHOD=noredirect ecommercefya:v3

This is the command to bring up the nginx-proxy:

docker run -d --name nginx-proxy --net nginx-proxy -p 80:80 -p 443:443 -e HTTPS_METHOD=noredirect -e HSTS=off -v /home/ec2-user/ssl:/etc/nginx/certs -v /var/run/docker.sock:/tmp/docker.sock:ro jwilder/nginx-proxy

When running docker logs on the nginx-proxy:

2019/12/16 18:55:15 [error] 545#545: *1837 connect() failed (111: Connection refused) while connecting to upstream, client: 200.14.138.67, server: minubeya.com, request: "GET /favicon.ico HTTP/1.1", upstream: " http://172.24.0.4:443/favicon.ico ", host: "minubeya.com", referrer: " http://example.mydomain.com "

And in my container with ssl certificate and domain:

AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.24.0.4. Set the 'ServerName' directive globally to suppress this message
AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 172.24.0.4. Set the 'ServerName' directive globally to suppress this message
[Mon Dec 16 16:42:37.897214 2019] [mpm_prefork:notice] [pid 1] AH00163: Apache/2.4.38 (Debian) PHP/7.2.24 configured -- resuming normal operations
[Mon Dec 16 16:42:37.897270 2019] [core:notice] [pid 1] AH00094: Command line: 'apache2 -D FOREGROUND' 

This is the content of my default.conf:

# minubeya.com
upstream example.midominio.com {
                                ## Can be connected with "nginx-proxy" network
                        # minubeya.com
                        server 172.24.0.4:443;
}
server {
        server_name example.midominio.com;
        listen 443 ssl http2 ;
        access_log /var/log/nginx/access.log vhost;
        ssl_session_timeout 5m;
        ssl_session_cache shared:SSL:50m;
        ssl_session_tickets off;
        ssl_certificate /etc/nginx/certs/minubeya.com.crt;
        ssl_certificate_key /etc/nginx/certs/minubeya.com.key;
        ssl_stapling on;
        ssl_stapling_verify on;
        ssl_trusted_certificate /etc/nginx/certs/minubeya.com.chain.pem;
        location / {
                proxy_pass example.midominio.com;
        }
}
server {
        server_name example.midominio.com;
        listen 80 ;
        access_log /var/log/nginx/access.log vhost;
        location / {
                proxy_pass example.midominio.com;
        }
}

This is the content of my nginx.conf:

user  nginx;
worker_processes  auto;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    access_log  /var/log/nginx/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    keepalive_timeout  65;

    #gzip  on;

    include /etc/nginx/conf.d/*.conf;
}
daemon off; 

I am working with Docker with a compose where I have an apache with php, a redmine, a portainer to control the containers and I am installing GitLab.

My problem comes in GitLab since by default it forces me to put a port to access and I would like it to go through a route, but I understand that each container has either its Apache or its Nginx since when I throw Apache and php I can still enter redmine and gitlab. How can I do to access GitLab through a route? I have looked at the VirtualHost issue but being in different Docker I do not know how to tell it where to look for the information.

The main problem is that it forces me to put the port whenever a user tries to recover a password, they get the path without the port or clone a repository and have to put it manually.

Greetings and thank you.

I modify the POST

This is my complete docker-compose. I am new to docker and I am learning with each problem that appears.

version: '2'
services:
  php:
    container_name: php
    restart: always
    image: php:7-apache
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./html:/var/www/html
      - ./certificados:/etc/ssl/certs
  gitlab:
   image: 'gitlab/gitlab-ce:latest'
   restart: always
   hostname: 'localhost'
   environment:
     GITLAB_OMNIBUS_CONFIG: |
       external_url 'http://localhost/gitlab'
       # Add any other gitlab.rb configuration here, each on its own line
   ports:
     - '32787:80'
     - '32786:443'
     - '32788:22'
   volumes:
     - './config:/etc/gitlab'
     - './logs:/var/log/gitlab'
     - './data:/var/opt/gitlab'
  redmine:
    container_name: redmine
    restart: always
    image: redmine
    ports:
      - "3000:3000"
    volumes:
      - ./redmineData:/usr/src/redmine/files
      - ./redminePlugins:/usr/src/redmine/plugins
      - ./redmineConfig/configuration.yml:/usr/src/redmine/config/configuration.yml
    environment:
      REDMINE_DB_MYSQL: xx
      REDMINE_DB_PASSWORD: xxxxxx
  db:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: xxxxx
      MYSQL_DATABASE: xxxx
    volumes:
      - ./mysqlData:/var/lib/mysql
  portainer:
    image: portainer/portainer
    restart: always
    ports:
      - "9000:9000"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ./portainer_data:/data portainer/portainer

my idea would be to be able to enter this way http://localhost/gitlab

and not with the port http://localhost:32787/gitlab so it works. The main problem is when uploading via ssh or recovering the pass, it sends me the mail without the port.

All the best.

edit 01

docker-compose

version: '2'
services:
  nginx: 
    image: nginx:latest
    container_name: servidor_nginx
    depends_on:
      - php
      - redmine
    volumes:
      - ./virtualhost.conf:/etc/nginx/nginx.conf
    ports:
      - 80:80
      - 443:443
  php:
    container_name: php
    restart: always
    image: php:7-apache
    ports:
      - "8080:80"
    volumes:
      - ./html:/var/www/html
  redmine:
    container_name: redmine
    restart: always
    image: redmine
    ports:
      - "3000:3000"
    volumes:
      - ./redmineData:/usr/src/redmine/files
      - ./redminePlugins:/usr/src/redmine/plugins
      - ./redmineConfig/configuration.yml:/usr/src/redmine/config/configuration.yml
    environment:
      REDMINE_DB_MYSQL: db
      REDMINE_DB_PASSWORD: xxxxx
  db:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: xxxxx
      MYSQL_DATABASE: redmine
    volumes:
      - ./mysqlData:/var/lib/mysql
  portainer:
    image: portainer/portainer
    restart: always
    ports:
      - "9000:9000"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - ./portainer_data:/data portainer/portainer

virtualhost

events {

}

http {
  error_log /etc/nginx/error_log.log warn;
  client_max_body_size 20m;

  proxy_cache_path /etc/nginx/cache keys_zone=one:500m max_size=1000m;
        server {
            listen 80;
            server_name  localhost;
            location /php {
                proxy_pass         http://php:8080/;
                proxy_redirect     off;
                proxy_set_header   Host $host;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_set_header   X-Real-IP $remote_addr;
                proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header   X-Forwarded-Host $http_host;
            }
            location /redmine {
                proxy_pass         http://redmine:3000/;
                proxy_redirect     off;
                proxy_set_header   Host $host;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_set_header   X-Real-IP $remote_addr;
                proxy_set_header   X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header   X-Forwarded-Host $http_host;
            }

        }
    }

When I try this route:

http://localhost/redmine gives me 502 Bad Gateway

Good morning StackOverflow community!

I have managed to install docker on a machine that is x64 and has Windows 7 Ultimate, however, as docker is a program that has official support for x64 bits and also uses virtual box, I was reading that it is necessary for the correct operation that the machine supports the virtualization at the hardware level and in fact when running docker it throws me a message saying that the machine does not have support for x64 bit systems. The problem is that the machine does not have this capacity (I have read its technical specifications, I also checked the Bios and if there were any doubts I confirmed that it does not have Hyper-V in the Windows characteristics).

Which leads me to ask if there is any other tool, "workaround" or alternative to be able to run docker on Windows 7 without using hardware virtualization in between.

Observation: I know that changing to Linux is a solution because it does not require virtualization technology at the hardware level, however, it is not an option since the host must be Windows due to the requirements that have been raised.

Update: At the request of the user @Alfabravo I have taken a screenshot with the error that docker shows due to the hardware virtualization problem.

Docker quick toolbox image:

Docker image "running" in virtual box:

When you create a docker containerthere is no way to assign resources to it like RAM, disco duro, etc. The only thing I have seen is how to open ports so that there is communication with the outside ( see here ) and also how to add volumes ( see here ) to store or read files.

But I haven't found a way to manage the resources of a docker container, does anyone know if that's possible? are there default values? Do they grow automatically depending on demand? can they be restricted?

I've searched the official documentation but haven't found anything related.