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Support GITEA_I_AM_BEING_UNSAFE_RUNNING_AS_ROOT env (#29788) (#29791) 

Backport #29788 by @wolfogre

I was trying to run unit tests for Gitea on act runner, by using `make
test`.

It failed with log:

```
2024/03/14 03:09:26 ...s/setting/setting.go:180:loadRunModeFrom() [F] Gitea is not supposed to be run as root. Sorry. If you need to use privileged TCP ports please instead use setcap and the `cap_net_bind_service` permission
```

So it will be convenient to skip by setting environment, since it's OK
to use root user in job containers.

It's not a bug, but I want to backport it to v1.21 since it doesn't
break anything.

---------

Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
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Giteabot 2024-03-14 18:02:37 +08:00 committed by GitHub
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3
modules/setting/setting.go
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@ -13,6 +13,7 @@ import (
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/user"
"code.gitea.io/gitea/modules/util"
)
// settings
@ -158,9 +159,11 @@ func loadCommonSettingsFrom(cfg ConfigProvider) error {
func loadRunModeFrom(rootCfg ConfigProvider) {
rootSec := rootCfg.Section("")
RunUser = rootSec.Key("RUN_USER").MustString(user.CurrentUsername())
// The following is a purposefully undocumented option. Please do not run Gitea as root. It will only cause future headaches.
// Please don't use root as a bandaid to "fix" something that is broken, instead the broken thing should instead be fixed properly.
unsafeAllowRunAsRoot := ConfigSectionKeyBool(rootSec, "I_AM_BEING_UNSAFE_RUNNING_AS_ROOT")
unsafeAllowRunAsRoot = unsafeAllowRunAsRoot || util.OptionalBoolParse(os.Getenv("GITEA_I_AM_BEING_UNSAFE_RUNNING_AS_ROOT")).IsTrue()
RunMode = os.Getenv("GITEA_RUN_MODE")
if RunMode == "" {
RunMode = rootSec.Key("RUN_MODE").MustString("prod")