Docker volume mapping to local directory generating River4 console errors

[Frank McPherson]

I am working on my Docker container for River4 and a GUI tool for Docker called Kitematic that appears to provide a way to map a pre-defined volume in a container to a local directory on my computer. If I get this to work, it would provide an easy way for one to update the reading list that River4 uses.

I have the river4data directory defined as a volume in the container, and it has the data, rivers, and lists subdirectories with a sample readinglist.opml file in the lists subdirectory. When I start the container, River4 runs, finds the reading lists, and starts pulling for new articles, all as you would expect. 

Next, I go into the Volume section of the container in Kitematic and map a local folder (Documents/Kitematic/River4) to the /river4data volume. River4 automatically creates the data, rivers, and lists subdirectories as the volume is now empty. I stop River4, copy another OPML file into the lists folder that is now local on my computer, re-start River4 and the console starts showing something similar to the following for every feed in the list.

fsNewObject: error == {

    "errno": -2,

    "code": "ENOENT",

    "path": "river4data/data/feeds/news.ycombinator.com:rss/feedInfo.json"

}

Does anyone have an idea of what this error could be point to? 

Oddly enough, if I remove the local drive mapping, everything is restored as previous and River4 runs as expected with no errors in the console.  I'll keep digging into this.

[Dave Winer]

ENOENT means "no such file or directory."

https://www.google.com/search?q=enoent

Dave

--
GitHub repository: https://github.com/scripting/river4
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