I describe my doubt below:
I currently have Docker installed on my Windows computer. I have an Ubuntu 18.04 container, which has installed PHP 7.2, Apache2, and MariaDB. The port mapping is as follows:
docker run -it --name my_container -p 8080:80 -p 8081:3306 ubuntu:1804
Previously, before using Docker, I had configured a Virtual Host on my computer for a web project, something like http://my_project.dev to access it instead the typical http://localhost/projects/my_project.
Now that I changed my way of working to Docker, I have my project working perfectly on port 8080, something like this http://localhost:8080/projects/my_project, but I can't find a way to create a Virtual Host to access my project with http://mi_project.dev in my current Docker container.
Related
I am trying to create an application for a server that runs in a docker container and can be accessed over the network via an IP address. However, I can't get it to connect with anything other than localhost:port.
I am using Docker for Windows on Windows 10 with Linux Containers.
To keep it simple, I am currently trying to achieve this effect with a simple apache server.
I am using this dockerfile:
FROM ubuntu:12.04
RUN apt-get update
RUN apt-get install -y apache2
ENV APACHE_RUN_USER www-data
ENV APACHE_RUN_GROUP www-data
ENV APACHE_LOG_DIR /var/log/apache2
RUN echo 'Hello, docker' > /var/www/index.html
ENTRYPOINT ["/usr/sbin/apache2"]
CMD ["-D", "FOREGROUND"]
I can build and run it (via docker run -p 8080:80 apache-server), and access the apache server from my local windows machine's webbrowser via localhost:8080. In that case, the "hello docker"-Apache starting page is displayed, as intended.
However, I have not been able to access it using an actual IP address (other than 127.0.0.1, of course).
Addresses I tried are:
The local network address of my computer in my home network
The Subnet Address (10.0.75.0) and Mask (255.255.255.240) in the Docker for Windows Network settings
My public IP Address
None of these have worked.
Ideally, I would like to be able to access the containerized apache server from anywhere within my local network, and very ideally, I would also like to access it from outside the network.
How can I achieve this?
Edit:
I found out a way to connect to the Apache server from my local machine. Using the following Address in a web browser works: http://10.0.75.1:8080/.
If I understand it correctly, that's the subnet address.
However, I still have no idea how I can connect to the Apache-server in the container from another machine in the network. What I am looking for is for an IP address that I can input into a web browser, and that will display the "hello docker" apache-page.
I'm in a team where some of us use docker toolbox and some user docker desktop. We're writing an application that needs to communicate to a docker container in development.
On docker toolbox, I know the docker-machine env command sets the docker host environment variable and I can use that to get the ip of the virtual machine that's running the docker engine. From there I just access the exposed ports.
What's the equivalent way to get that information on docker desktop? (I do not have a machine that has docker desktop, only docker toolbox but I'm writing code that should be able to access the docker container on both)
On windows OS, after installed docker, there is an entry added by docker inside your hosts file (C:\Windows\System32\drivers\etc\hosts), which states the IP as:
Added by Docker Desktop
10.xx.xx.xx host.docker.internal
Below section got added in my /etc/hosts:
# Added by Docker Desktop
192.168.99.1 host.docker.internal
192.168.99.1 gateway.docker.internal
Then I was able to access by adding the port to which the app was bind to.
This command should display the IP
ping -q -c 1 docker.local | sed -En "s/^.*\((.+)\).*$/\1/p"
ipconfig can get you this information as well
I have a Debian server with apache2 on it. I can access it by an ip address.
What I want is to be able to access to the containers in it (which contain an apache2 serveur) from the outside by an url like "myIpAddress/container1". What I currently have is an acces to those containers only from the Debian server.
I thought about using proxy reverse, but I cannot make it works.
Thank you for your help! :-)
Map the docker container's port to a host port and access the docker container from <host-ip>:port.
docker run -p host-port:container-port image
For example, upon running a container using the above command will make the container available at 127.0.0.1
docker run -p 80:5000 training/webapp
Update:
Setting up reverse proxy using NGINX
This example uses a plain NGINX container as site A and plain Apache server as site B.
Run the reverse proxy.
docker run -d \
--name nginx-proxy \
-p 80:80 \
-v /var/run/docker.sock:/tmp/docker.sock:ro jwilder/nginx-proxy
Start the container for site A, specifying the domain name in the VIRTUAL_HOST variable.
docker run -d --name site-a -e VIRTUAL_HOST=a.example.com nginx
Check out your website at http://a.example.com.
With site A still running, start the container for site B.
docker run -d --name site-b -e VIRTUAL_HOST=b.example.com httpd
Check out site B at http://b.example.com.
Note: Make sure you have set up DNS to forward the subdomains to the host running nginx-proxy. If you're using AWS, the easiest way is to use Route53.
For testing locally, map sub-domains to resolve to localhost by adding entries in /etc/hosts file.
127.0.0.1 a.example.com
127.0.0.1 b.example.com
References
jwilder NGNIX Proxy Github
NGNIX reverse proxy using docker
I have the following setup:
A Windows 10 Pro Laptop ("Win10Laptop") that has a Windows 10 Pro VM ("Win10VM") running on Hyper-V. I have created an nginx container by running the following command on the host machine:
docker run -d -p 80:80 --name webserver nginx
While the container is running I can access http://localhost from Win10Laptop and this works fine. My question is what do I need to configure to access nginx from Win10VM? Win10VM has only one network adaptor which is configured to use the "External" Vswitch connected to my Wifi interface.
Let me know if you need any more details. I've tried all sorts and can't figure it out!
Thanks,
Michael
You need to connect to the IP the VM has acquired on the External switch. Run ipconfig inside the VM to see what IP it has, then open http://<vm-ip> from your host.
I am not able to access my container which is running a “dockerized” ipython notebook application. The host is a CentOS7 running in Google Cloud.
Here is the details of the environment:
Host: CentOS7/Apache Webserver running for example on IP address: 123.4.567.890 (Port 80 is Listening)
Docker container: An Jupyter Notebook application – the container is called for example APP-PN and can be accessed via the port: 8888 in docker.
It I run the application at my local server I can access the notebook application via the browser:
http://localhost:8888/files/dir1/app.html
However, when I run the application on the Google Cloud if I put:
http://123.4.567.890:8888/files/dir1/app.html
I cannot access it.
I tried all combinations open the port 8888 via TCP on the host as well as to expose the port via the docker run command – all of which did not work:
firewall-cmd --zone=public --add-port=8888/tcp --permanent
docker run -it -p 80:8888 APP-PN
docker run --expose 8888 -it -p 80:8888 APP-PN
Also I tried to change Apache to Listen to port 80 and 8888 but I got some errors.
However if I STOP the Apache Webserver and then run the command
docker run -it -p 80:8888 APP-PN
I can access the application simply in my browser via:
htttp://123.4.567.890/files/dir1/app.html
HERE is my question: I do not want to STOP my Apache Webserver and at the same time I want to access my docker container via the external port 8888.
Thanks in advance for all the help.
I didn't see in your examples a
docker run -it -p 8888:8888 APP-PN
The -p argument describes first the host port to listen on and then the container port to route to. If you want the host to listen on the same port as the container, -p 8888:8888 will get it done.