Re: Docker support for ConfiguredGraphFactory

Michael Kaiser-Cross <mkaise...@...>

Hi Mike,

I think the problem might be that the docker image replaces parts of the gremlin-server.yaml file at runtime using env variables. So not sure if copying the gremlin-server.yaml file will be a reliable way of setting the configuration as it is meant to be configured through env variables.

I was trying use ConfigurationManagementGraph in docker a while back however I found that you can't set the graphs.ConfigurationManagementGraph property without getting a yaml syntax error. The reason is simple which is that there isn't a true yaml parser but rather a basic sed replace command for manipulating the yaml file. I believe this was a temporary solution to cover basic use cases but it does not work with nested properties and was meant to eventually be replaced by an actual yaml parser. I made this pull request to do just that a while back but never got the merge completely finished. Here is the pull request I'll see if I can get this moving again.

Mike KC

On Friday, October 16, 2020 at 6:34:12 PM UTC-4 Mike Thomsen wrote:
I spent a while today looking through the janusgraph-docker repository on GitHub, and it didn't look like there is a good way to configure a ConfiguredGraphFactory without injecting a custom configuration file. Is that correct?

My general process went like this:

1. Copied the vanilla gremlin-server.yaml and changed graphs to look like this:
graphs: {
    ConfigurationManagementGraph: /etc/opt/janusgraph/

2. Added a simple properties file that contains a basic setup for CQL + ES that points to the docker hosts for them.

3. Wrapped that with a Dockerfile like this:

FROM janusgraph/janusgraph:latest
COPY gremlin-server.yaml /opt/janusgraph/conf/gremling-server.yaml
COPY /etc/opt/janusgraph/

When I brought that up with Docker Compose, I got errors saying that the YAML failed to parse and the graphs block that it printed out didn't resemble my configuration file.

Has anyone figured out a good way to make this work?



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