Swagger no available when running in docker.

[ssword]

First, really thanks for developing this package, it is super cool! I am trying to deploy plumber with docker, here is the last part of my dockerfile:

EXPOSE 5000

ENTRYPOINT ["R", "-e", "pr <- plumber::plumb(commandArgs()[4]); pr$run(host='0.0.0.0', port=5000, swagger = TRUE)"]

CMD ["/usr/src/service/api.R"]

All the API functions running perfect, but I can't visit /__swagger/ page, 404 error. Do I need to configure something else? or it is not supported yet? Thanks.

[schloerke]

It is turned on with the flag that you've set. I don't understand why it's not working.

[schloerke]

@ssword Have you figured out a fix? Does the same plumber router work in a local session?

[trestletech]

__swagger__. Two underscores before and after.

[schloerke]

Good catch @trestletech! Thanks!

@ssword Does the route /__swagger__/ work for you?

[ssword]

@trestletech @schloerke , thanks for the reply. Sorry, I should have responded earlier. I was using __swagger__, (it is the markdown syntax that makes the typo). dunder before and after, and it didn't work. I have also tried the default one.

docker pull trestletech/plumber
docker run -rm -p 5000:8000 trestletech/plumber

Again, I can access /mean, and /sum, but /__swagger__/ still gives 404. I am running the docker in Google cloud platform, Centos 7, with port 5000 open. Is there any other information that I need t provide?

[trestletech]

Can you provide the logs of your container on startup? That would emit info about whether or not Swagger is enabled.

Additionally, what Plumber/R version is your instance running?

[ssword]

@trestletech , thanks, here is the log:

[user@host ~]# docker run --rm -p 5000:8000 trestletech/plumber
ARGUMENT '/usr/local/lib/R/site-library/plumber/examples/04-mean-sum/plumber.R' __ignored__

R version 3.5.1 (2018-07-02) -- "Feather Spray"
Copyright (C) 2018 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

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You are welcome to redistribute it under certain conditions.
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> pr <- plumber::plumb(commandArgs()[4]); pr$run(host='0.0.0.0', port=8000)
Starting server to listen on port 8000

[trestletech]

The run call there is missing swagger=TRUE

[trestletech]

Stale docker image that needs rebuilding on the remote server?

[ssword]

@trestletech you are right, after adding swagger=TRUE to the default docker image, swagger UI is enabled. I will check my own docker file again, than you!

[ssword]

@trestletech , sorry, it's my bad, I was using the file with pr$run as command args instead of the original function file. I will close the issue.