Issue running locally via docker-compose

[KrisJanssen]

If you git clone the repo and try to run via docker-compose up …

https://github.com/RobinLinus/snapdrop/blob/5c4aeb0108c77c653e496bf843452e010b1b2838/docker-compose.yml#L25

… will cause an issue: ‘ [emerg] "daemon" directive is in /etc/nginx/nginx.conf’

Removing the -g option altogether makes the error go away but then there is an issue with:

https://github.com/RobinLinus/snapdrop/blob/5c4aeb0108c77c653e496bf843452e010b1b2838/docker/nginx-with-openssl.Dockerfile#L3

Because openssl package is not found

In the end, editing the dockerfile as follows …

FROM nginx
RUN apt install openssl

… made everything work as expected.

This might confuse some people when trying to run this locally?

[harve27]

It seems like you got everything to work — could you help me with my setup? I followed the instructions on the guide but they were a bit confusing and I ran into some problems. I cloned the repo and ran the command docker-compose up -d. The command ran successfully, but when I pointed the browser (Firefox) to http://localhost:8080, I received the error "Problem loading page".

Inspection in Docker Desktop revealed that "snapdrop_node1" was running on port 3000, but pointing to the browser here did not work as well (http://localhost:3000). I noticed here that "snapdrop_nginx_1" exited with the error: standard_init_linux.go:219: exec user process caused: no such file or directory. Here, I tried your fix, and edited the .Dockerfile as you indicated above (also removed the -g option). No changes.

Not sure what to do from here - any help would be greatly appreciated. Thanks.

[Bben01]

Change the docker/openssl/create.sh line endings from CRLF to LF.

[NikErmRnd]

Change the docker/openssl/create.sh line endings from CRLF to LF.

I did it, but this still not run

[harve27]

Don't think it worked for me either. I did not see any "CRLF" ending within the create.sh file. I added LF endings to the three middle lines, but it still did not work (same error as my previous comment above). I think it's also important to note that I haven't followed the instructions under "Testing PWA related features" as they were a bit confusing to understand (I'm unsure how to identify the FQDN on my Windows 10 PC). Is that necessary in order to run Snapdrop locally?

[Bben01]

I just downloaded the repo and tried to start docker, but the nginx_1 would tell me "standard_init_linux.go:219: exec user process caused: no such file or directory". I switched to LF and it works.

[harve27]

How did you switch to LF? I just deleted my previous configuration and re-cloned the repo, then did docker compose -up d (with the same error that you indicated above). Here's what my create.sh file looks like currently:

#!/bin/sh

cnf_dir='/mnt/openssl/'
certs_dir='/etc/ssl/certs/'
openssl req -config ${cnf_dir}snapdropCA.cnf -new -x509 -days 1 -keyout ${certs_dir}snapdropCA.key -out ${certs_dir}snapdropCA.crt
openssl req -config ${cnf_dir}snapdropCert.cnf -new -out /tmp/snapdrop-dev.csr -keyout ${certs_dir}snapdrop-dev.key
openssl x509 -req -in /tmp/snapdrop-dev.csr -CA ${certs_dir}snapdropCA.crt -CAkey ${certs_dir}snapdropCA.key -CAcreateserial -extensions req_ext -extfile ${cnf_dir}snapdropCert.cnf -sha512 -days 1 -out ${certs_dir}snapdrop-dev.crt

exec "$@"

How do I switch this to LF? There is no CRLF ending on any of these lines.

[Bben01]

Try to use notepad++ in Edit > EOL Conversion > Unix (LF)

[harve27]

Thanks - that worked for me. Currently, it works on localhost but not on any other device. Can you help me figure out how to access locally hosted Snapdrop on other devices?

[Bben01]

Every connection to your host using the port docker is listening will access the page locally (You can change the port in the docker file config, then restart it).

[harve27]

Sorry, I should have explained my previous question better. Currently, Snapdrop is running perfectly on http://localhost:8080 and http://{IPv4 address}:8080 (on my local computer). If I want to access it on my mobile device (for example), what URL should I put in the phone browser? I've tried doing http://{IPv4 address}:{3000, 8080, 80, 443}, as well as http://localhost:{3000, 8080, 80, 443}. The ports listed on docker-compose.yml are 8080:80 and 443:443.

Thanks for your help so far — I'm a bit inexperienced with Docker and you have been super helpful.

EDIT: It might be related to https://github.com/RobinLinus/snapdrop/issues/266#issuecomment-791853677. I'm using an iPhone to access the server. Tried the solution here but did not work, maybe putting the wrong URL in the browser?

[Bben01]

You can use your local computer up (192.168.0.20 for example) and the port 8080. You can Google search how to discover your Local ip)

[harve27]

That seems to work for me! Thanks so much for all your help.

[Bben01]

You're welcome

[NikErmRnd]

Thank you, change CRLF to LF in the entire project files (without deleting -g and change docker files) helped!

[RJVB]

I do get the familiar landing page in my browser (Waterfox G4) when I run docker-compose up in the the current repo, but I get a recurrent connection lost/reconnecting message every 2-3 seconds or so.