Change env-to-ini prefix and remove custom prefix (#464)

### Description of the change

Change env-to-ini prefix and remove custom prefix.
`GITEA` is the default prefix.

### Benefits

Compatibility wit v1.20 (`-p` got removed)

### Possible drawbacks

None

### Additional information

See go-gitea/gitea#25799

Tested with Gitea < 1.20 and >= 1.20

Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/464
Co-authored-by: pat-s <patrick.schratz@gmail.com>
Co-committed-by: pat-s <patrick.schratz@gmail.com>

Author: pat-s

README.md

@@ -237,16 +237,14 @@ We also support to directly interact with the generated _app.ini_.
 To inject self defined variables into the _app.ini_ a certain format needs to be honored.
 This is described in detail on the [env-to-ini](https://github.com/go-gitea/gitea/tree/main/contrib/environment-to-ini) page.
 
-Note that the Prefix on this helm chart is `ENV_TO_INI`.
-
 For example a database setting needs to have the following format:
 
 ```yaml
 gitea:
   additionalConfigFromEnvs:
-    - name: ENV_TO_INI__DATABASE__HOST
+    - name: GITEA__DATABASE__HOST
       value: my.own.host
-    - name: ENV_TO_INI__DATABASE__PASSWD
+    - name: GITEA__DATABASE__PASSWD
       valueFrom:
         secretKeyRef:
           name: postgres-secret
@@ -255,7 +253,7 @@ gitea:
 
 Priority (highest to lowest) for defining app.ini variables:
 
-1. Environment variables prefixed with `ENV_TO_INI`
+1. Environment variables prefixed with `GITEA`
 1. Additional config sources
 1. Values defined in `gitea.config`
 

templates/gitea/config.yaml

@@ -53,14 +53,14 @@ stringData:
       env2ini::log "    + '${setting}'"
 
       if [[ -z "${section}" ]]; then
-        export "ENV_TO_INI____${setting^^}=${value}"                           # '^^' makes the variable content uppercase
+        export "GITEA____${setting^^}=${value}"                           # '^^' makes the variable content uppercase
         return
       fi
 
       local masked_section="${section//./_0X2E_}"                            # '//' instructs to replace all matches
       masked_section="${masked_section//-/_0X2D_}"
 
-      export "ENV_TO_INI__${masked_section^^}__${setting^^}=${value}"        # '^^' makes the variable content uppercase
+      export "GITEA__${masked_section^^}__${setting^^}=${value}"        # '^^' makes the variable content uppercase
     }
 
     function env2ini::reload_preset_envs() {
@@ -134,15 +134,15 @@ stringData:
       #   - initially used to set up Gitea
       # Anyway, they won't harm existing app.ini files
 
-      export ENV_TO_INI__SECURITY__INTERNAL_TOKEN=$(gitea generate secret INTERNAL_TOKEN)
-      export ENV_TO_INI__SECURITY__SECRET_KEY=$(gitea generate secret SECRET_KEY)
-      export ENV_TO_INI__OAUTH2__JWT_SECRET=$(gitea generate secret JWT_SECRET)
-      export ENV_TO_INI__SERVER__LFS_JWT_SECRET=$(gitea generate secret LFS_JWT_SECRET)
+      export GITEA__SECURITY__INTERNAL_TOKEN=$(gitea generate secret INTERNAL_TOKEN)
+      export GITEA__SECURITY__SECRET_KEY=$(gitea generate secret SECRET_KEY)
+      export GITEA__OAUTH2__JWT_SECRET=$(gitea generate secret JWT_SECRET)
+      export GITEA__SERVER__LFS_JWT_SECRET=$(gitea generate secret LFS_JWT_SECRET)
 
       env2ini::log "...Initial secrets generated\n"
     }
 
-    env | (grep ENV_TO_INI || [[ $? == 1 ]]) > /tmp/existing-envs
+    env | (grep GITEA || [[ $? == 1 ]]) > /tmp/existing-envs
     
     # MUST BE CALLED BEFORE OTHER CONFIGURATION
     env2ini::generate_initial_secrets
@@ -163,10 +163,10 @@ stringData:
       env2ini::log '  - oauth2.JWT_SECRET'
       env2ini::log '  - server.LFS_JWT_SECRET'
 
-      unset ENV_TO_INI__SECURITY__INTERNAL_TOKEN
-      unset ENV_TO_INI__SECURITY__SECRET_KEY
-      unset ENV_TO_INI__OAUTH2__JWT_SECRET
-      unset ENV_TO_INI__SERVER__LFS_JWT_SECRET
+      unset GITEA__SECURITY__INTERNAL_TOKEN
+      unset GITEA__SECURITY__SECRET_KEY
+      unset GITEA__OAUTH2__JWT_SECRET
+      unset GITEA__SERVER__LFS_JWT_SECRET
     fi
 
-    environment-to-ini -o $GITEA_APP_INI -p ENV_TO_INI
+    environment-to-ini -o $GITEA_APP_INI