Add environment-to-ini to docker image

[kdumontnu]

The question of how to support automated deployment configs has come up a lot lately with many different solutions, so I'd like to add official support for the environment-to-ini util function.

I've added it to the docker build and call it in the docker setup function. Note that I have it outside of the [ ! -f ${GITEA_CUSTOM}/conf/app.ini ] check so that it is run every time the container is started.

If there is support for this I can add a section to https://docs.gitea.io/en-us/install-with-docker/

[techknowlogick]

In addition to the one README change, could you also update the Gitea Docker docs to mention using these changes?

[codecov-io]

Codecov Report

Merging #14762 (f956ee9) into master (487f2ee) will decrease coverage by 0.00%.
The diff coverage is 42.15%.

@@            Coverage Diff             @@
##           master   #14762      +/-   ##
==========================================
- Coverage   42.21%   42.21%   -0.01%     
==========================================
  Files         767      771       +4     
  Lines       81624    82078     +454     
==========================================
+ Hits        34458    34647     +189     
- Misses      41531    41784     +253     
- Partials     5635     5647      +12     

Impacted Files	Coverage Δ
models/action.go	48.52% <0.00%> (-2.42%)	⬇️
models/migrations/migrations.go	2.59% <ø> (ø)
models/migrations/v166.go	0.00% <0.00%> (ø)
models/migrations/v172.go	0.00% <0.00%> (ø)
models/migrations/v173.go	0.00% <0.00%> (ø)
models/session.go	0.00% <0.00%> (ø)
models/user.go	53.05% <ø> (+0.38%)	⬆️
modules/context/context.go	58.05% <0.00%> (-0.45%)	⬇️
modules/indexer/code/elastic_search.go	1.72% <0.00%> (-0.02%)	⬇️
modules/migrations/github.go	77.77% <0.00%> (-1.99%)	⬇️
... and 57 more

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[techknowlogick]

Thanks so much!!

[decentral1se]

Thanks for this work but this needs to be made optional. When deploying Gitea using docker swarm, you pass the app.ini as a read-only file. Then when environment-to-ini is always run, the deployment fails because it cannot edit that file. Ideally, there would be an environment var that you could set to avoid running this command. For now, I have to override the entrypoint.

[decentral1se]

Something conditional to be wrapped around:

gitea/docker/rootless/usr/local/bin/docker-setup.sh

Line 51 in d7dbe4f

environment-to-ini --config ${GITEA_APP_INI}

[6543]

@decentral1se can you open a new issue and reference this pull, else its likely to get lost in the void