I want to deploy api service (asp .net) to VPS.
What is at the moment:
VPS ubuntu 22.10
Container api service with open port http.
Container mongodb.
Network bridge for communication between these containers.
Volume for storing mongodb collections.
Configured dns subdomain, which translates to ip VPS.
What I want:
To add nginx.
To add ssl (Let's Encrypt with certbot).
I don't want to use docker compose because I want to understand how things works.
I'm not strong in terminology, but perhaps what I want to do is called an open nginx proxy.
Please tell me if I understand correctly what I need to do.
Nginx:
To run a separate nginx container.
To add the nginx configuration to the docker volume.
To add nginx to the bridge network (close ports on the api container, open ports on the nginx container)
To set up nginx location configs to work internally through the network bridge.
SSL:
On the VPS machine (not in the docker container) to install and run certbot
To enabled automatic certificate renewal
I'm not sure where I need to run certbot. On vps machine or in nginx docker container.
I don't know how to configure nginx to work through the bridge.
I have a demo application running perfectly on my local environment. However, I would like to run the same application remotely by giving it a HTTP endpoint. My goal is to test the performance of the application.
How to give a HTTP endpoint to any multi container docker application?
The following is the Github repository link for the demo application
https://github.com/LonareAman/BankCQRS.git
Use docker-compose and handle containers based on what you need
One of your containers should be web server like nginx. And then bind your machine port to your nginx like 80:80
Then handle your containers in nginx and make a proxy to them
You can find some samples in https://testdriven.io/blog/dockerizing-django-with-postgres-gunicorn-and-nginx/
I have been able to set up containerised RabbitMQ server, and reach into it with basic .NET Core clients and check message send and receive working using management portal on http://localhost:15672/.
But I am having real frustrations when I also Containerise my Sender/Receiver .NET Core clients, on being able to establish a connection. I have set up an explicit "shipnetwork", so all containers in the following docker-compose deployment should see each other.
This is the Error I get in the sender attempting the connection:
My SendRabbit .NET core App is as follows. This code was working on my local Windows 10 development machine, with a host of 'localhost' against the RabbitMQ server running as a container. But when I change this to a [linux] docker project, and set the host to "rabbitmq", to correspond to the service name in the docker compose. Now I just get Endpoint Connection errors exceptions within my Sender container.
I have also attempted the same RabbitMQ server and Sender Image with the same docker-compose on a Google Cloud Linux Virtual Machine, and get the same errors. So I do not think it is the Windows 10 docker hosting VM environment hassles.
I thought docker was going to make development and deployment of microservices, but setting up a basic RabbitMQ connections is proving to be a real pain.
I have thought that maybe the rabbitmq server is not up and running, so perhaps ambitious to put in the same docker-compose. But I have checked running my SendRabbit container
$docker run --network shipnetwork sendrabbit
some minutes later. But I still get the same connection error
docker networks **** networks !
When I checked the actual docker networks, I had:
bridge
host
shipnetwork
rabbitship_shipnetwork
The docker compose was actually creating the 'new' network: rabbitship_shipnetwork every time it was spun up, and placing the rabbimq server on that network. The netwrok is named from appending the directory name, with the name in the compsos yaml. So I was using the wrong network in my senders. So I should have been using
$docker run --network rabbitship_shipnetwork sendrabbit
This works fine, and creates messages into the rabbitmq server
So I don't feel that docker-compose is actually very helpful in creating networks, since it is sensitive to the directory name it is run in ! Its unlikely that I can build an app .docker files, and deploy all Apps from a single directory, especially when rabbitmq has to be started separately, before senders and receivers can use it.
docker-compose 0
I have a web application running within docker but the MYSQL database is running on different host and port ( outside docker environment)
Its the legacy database and we have decided not to migrate it to docker environment.
I am not able to telnet from within docker shell to MYSQL host/port
Can any one help me with an example docker-compse.yml showing how an app within docker can connect to an external MYSQL or any service running on an external host and port.
Simple question - I hope.
I am trying to communicate to a redis instance running on Amazon elastic cache from a docker container on an amazon ec2 machine. I can connect without problems to the redis instance from the ec2 machine host (which would seem to indicate that this is not a security/ports problem) but I get a timeout when trying to connect from within the docker container. What am I missing?