Hi,
I’m new to Gitea and I’m really struggling to setup an instance on Windows with LetsEncrypt SSL certificate and Entra ID as authentication provider with automatic user creation.
By now I have a running instance on an English Windows Server 2025 with an IIS reverse proxy and a Let’s Encrypt Certificate. The server is hardened with most of the CIS recommendations.
I tried to configure Entra ID Sign-In with this (which is exactly what I want) but no matter what I tried I always end up here:
When I create the account manually, I can login successfully but I’m not part of the desired organization.
This is my config (domain name redacted):
Gitea located in „C:\program files\gitea\“
Version 1.27
App.ini
APP_NAME = Teal Gitea
RUN_USER = Gitea$
WORK_PATH = C:\Program Files\Gitea
RUN_MODE = prod
[database]
DB_TYPE = sqlite3
HOST = 127.0.0.1:3306
NAME = gitea
USER = gitea
PASSWD =
SCHEMA =
SSL_MODE = disable
PATH = C:\Program Files\Gitea\data\gitea.db
LOG_SQL = false
[repository]
ROOT = C:/Program Files/Gitea/data/gitea-repositories
[server]
SSH_DOMAIN = localhost
DOMAIN = localhost
HTTP_PORT = 3000
ROOT_URL = https://gitea.domain.de/
APP_DATA_PATH = C:\Program Files\Gitea\data
DISABLE_SSH = false
SSH_PORT = 22
LFS_START_SERVER = true
LFS_JWT_SECRET = secret
OFFLINE_MODE = true
[lfs]
PATH = C:/Program Files/Gitea/data/lfs
[mailer]
ENABLED = false
[service]
REGISTER_EMAIL_CONFIRM = false
ENABLE_NOTIFY_MAIL = false
DISABLE_REGISTRATION = false
ALLOW_ONLY_EXTERNAL_REGISTRATION = true
ENABLE_CAPTCHA = false
REQUIRE_SIGNIN_VIEW = true
DEFAULT_KEEP_EMAIL_PRIVATE = false
DEFAULT_ALLOW_CREATE_ORGANIZATION = false
DEFAULT_ENABLE_TIMETRACKING = true
NO_REPLY_ADDRESS = noreply.localhost
[openid]
ENABLE_OPENID_SIGNIN = false
ENABLE_OPENID_SIGNUP = false
[cron.update_checker]
ENABLED = true
[session]
PROVIDER = file
[log]
MODE = file
LEVEL = debug
ROOT_PATH = C:/Program Files/Gitea/log
LOG_ROTATE = TRUE
DAILY_ROTATE = TRUE
MAX_DAYS = 7
[repository.pull-request]
DEFAULT_MERGE_STYLE = merge
[repository.signing]
DEFAULT_TRUST_MODEL = committer
[security]
INSTALL_LOCK = true
INTERNAL_TOKEN = token
PASSWORD_HASH_ALGO = pbkdf2
; ;JWT_SECRET = secret
ENABLE_AUTO_REGISTRATION = true
; ;ACCESS_TOKEN_EXPIRATION_TIME = 36000
[oauth2]
JWT_SECRET = secret
ENABLE_AUTO_REGISTRATION = true
USERNAME = preferred_username
ACCOUNT_LINKING = auto
OPENID_CONNECT_SCOPES = openid profile email
UPDATE_AVATAR = true
REGISTER_EMAIL_CONFIRM = false
[time]
DEFAULT_UI_LOCATION = Europe/Berlin
IIS
IIS hast he following two options configured:
„system.webServer/proxy“: „preserveHostHeader“ = true
„system.webServer/proxy“: „reverseRewriteHostInResponseHeaders = false
Web.config
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.web>
<httpRuntime requestPathInvalidCharacters="" />
</system.web>
<system.webServer>
<security>
<requestFiltering>
<hiddenSegments>
<clear />
</hiddenSegments>
<denyUrlSequences>
<clear />
</denyUrlSequences>
<fileExtensions allowUnlisted="true">
<clear />
</fileExtensions>
</requestFiltering>
</security>
<rewrite>
<rules useOriginalURLEncoding="false">
<rule name="ReverseProxyInboundRule1" stopProcessing="true">
<match url="(.*)" />
<action type="Rewrite" url="http://127.0.0.1:3000{UNENCODED_URL}" />
<serverVariables>
<set name="HTTP_X_ORIGINAL_ACCEPT_ENCODING" value="HTTP_ACCEPT_ENCODING" />
<set name="HTTP_ACCEPT_ENCODING" value="" />
<set name="HTTP_X_FORWARDED_PROTO" value="https" />
</serverVariables>
</rule>
</rules>
<outboundRules>
<rule name="ReverseProxyOutboundRule1" preCondition="ResponseIsHtml1">
<!-- set the pattern correctly here - if you only want to accept http or https -->
<!-- change the pattern and the action value as appropriate -->
<match filterByTags="A, Form, Img" pattern="^http(s)?://127.0.0.1:3000/(.*)" />
<action type="Rewrite" value="https://gitea.domain.de/{R:2}" />
</rule>
<rule name="RestoreAcceptEncoding" preCondition="NeedsRestoringAcceptEncoding">
<match serverVariable="HTTP_ACCEPT_ENCODING" pattern="^(.*)" />
<action type="Rewrite" value="{HTTP_X_ORIGINAL_ACCEPT_ENCODING}" />
</rule>
<preConditions>
<preCondition name="ResponseIsHtml1">
<add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/html" />
</preCondition>
<preCondition name="NeedsRestoringAcceptEncoding">
<add input="{HTTP_X_ORIGINAL_ACCEPT_ENCODING}" pattern=".+" />
</preCondition>
</preConditions>
</outboundRules>
</rewrite>
<urlCompression doDynamicCompression="true" />
<!-- Map all extensions to the same MIME type, so all files can be
downloaded. -->
<staticContent>
<clear />
<mimeMap fileExtension="*" mimeType="application/octet-stream" />
</staticContent>
</system.webServer>
</configuration>
Azure App
Gitea Authentication Provider
Any help appreciated
Alex
