Add gitea configuration

content/docs/server/services/_index.md

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+---
+title: "Services"
+weight: 1
+bookFlatSection: true
+# bookToc: true
+# bookHidden: false
+# bookCollapseSection: false
+# bookComments: false
+# bookSearchExclude: false
+---

content/docs/server/services/gitea.md

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+---
+title: "Gitea"
+weight: 1
+# bookFlatSection: false
+# bookToc: true
+# bookHidden: false
+# bookCollapseSection: false
+# bookComments: false
+# bookSearchExclude: false
+---
+
+# Gitea
+
+## Installation
+Install `gitea` package.
+
+## Configuration
+Configuration takes place in `/etc/gitea/app.ini`. Examples are provided at
+`/etc/gitea/app.example.ini`.
+
+### Server
+Server configuration.
+```
+[server]
+PROTOCOL                = unix
+DOMAIN                  = git.edgarpierre.fr
+ROOT_URL                = https://git.edgarpierre.fr/
+STATIC_URL_PREFIX       =
+HTTP_ADDR               = /run/gitea/gitea.socket
+SSH_PORT                = ***
+OFFLINE_MODE            = true
+ENABLE_GZIP             = true
+ALLOW_GRACEFUL_RESTARTS = true
+```
+
+#### LFS
+```
+LFS_START_SERVER        = true
+LFS_JWT_SECRET          = 
+```
+
+### Database
+Create user and database for `gitea` using postgres.
+
+To use a unix socket connection to postgres, configuration should be :
+```
+[database]
+DB_TYPE             = postgres
+HOST                = /run/postgresql/
+NAME                = gitea
+USER                = gitea
+```
+
+### Security
+```
+[security]
+INSTALL_LOCK                  = true
+SECRET_KEY                    = ***
+INTERNAL_TOKEN                = ***
+REVERSE_PROXY_TRUSTED_PROXIES = 127.0.0.0/8,::1/128
+```
+
+```
+[oauth2]
+ENABLE = false
+```
+
+```
+[service]
+DISABLE_REGISTRATION = true
+```
+
+### Logs
+```
+[log]
+ROOT_PATH = /var/log/gitea
+```
+
+### Repositories
+```
+[repository]
+ROOT = /var/lib/gitea/repos
+DEFAULT_BRANCH = main
+```
+
+### Email
+```
+[mailer]
+ENABLED            = true
+SUBJECT_PREFIX     = [Gitea]
+HOST               = edgarpierre.fr:465
+FROM               = gitea@edgarpierre.fr
+USER               = gitea
+PASSWD             = ***
+SEND_AS_PLAIN_TEXT = true
+MAILER_TYPE        = smtp
+```
+
+### Webhooks
+```
+[webhook]
+ALLOWED_HOST_LIST = loopback,edgarpierre.fr,*.edgarpierre.fr
+```
+
+## Service
+Gitea is started using systemd service `gitea.service`.