--- name: "gotd.conf" section: "5" platform: "linux" package: "gotd" version: "0.111-1" release: "Debian 13 (Trixie)" platforms: ["linux"] url: "https://new.carta.tech/gotd.conf" --- # gotd.conf(5) gotd configuration file ## NAME **gotd.conf** – gotd configuration file ## DESCRIPTION **gotd.conf** is the run-time configuration file for [gotd(8)](/gotd/8.md). The file format is line-based, with one configuration directive per line. Comments can be put anywhere in the file using a hash mark (‘#’), and extend to the end of the current line. Arguments names not beginning with a letter, digit or underscore, as well as reserved words (such as **listen**, **repository** or **user**), must be quoted. Arguments containing whitespace should be surrounded by double quotes ("). Macros can be defined that are later expanded in context. Macro names must start with a letter, digit, or underscore, and may contain any of those characters, but may not be reserved words. Macros are not expanded inside quotes. For example: ``` path = "/var/run/gotd.sock" listen on $path ``` ## GLOBAL CONFIGURATION The available global configuration directives are as follows: - **connection** *option* Set the specified options and limits for connections to the [gotd(8)](/gotd/8.md) unix socket. The **connection** directive may be specified multiple times, and multiple *option* arguments may be specified within curly braces: **connection** {*...*} Each option should only be specified once. If a given option is listed multiple times, the last line which sets this option wins. Valid connection options are: - **request** **timeout** *seconds* Specify the inactivity timeout for operations between client and server. If this timeout is exceeded while a Git protocol request is being processed, the request will be aborted and the connection will be terminated. The timeout value may also have a suffix indicating its unit of measure. Supported suffixes are: - *s* or *S* seconds - *m* or *M* minutes - *h* or *H* hours The default timeout is 1h (3600 seconds, one hour). This should only be changed if legitimate requests are exceeding the default timeout for some reason, such as the server spending an extraordinary amount of time generating a pack file. - **limit** **user** *identity* *number* Limit the maximum amount of concurrent connections by the user with the username *identity* to *number*. Numeric user IDs are also accepted. The default per-user limit is 4. This should only be changed if concurrent connections from a given user are expected to exceed the default limit, for example if an anonymous user is granted read access and many concurrent connections will share this anonymous user identity. - **listen** **on** *path* Set the path to the unix socket which [gotd(8)](/gotd/8.md) should listen on. If not specified, the path */var/run/gotd.sock* will be used. - **user** *user* Set the *user* which will run [gotd(8)](/gotd/8.md). Initially, [gotd(8)](/gotd/8.md) requires root privileges in order to create its unix socket. Afterwards, [gotd(8)](/gotd/8.md) drops privileges to the specified *user*. If not specified, the user \_gotd will be used. Numeric user IDs are also accepted. ## REPOSITORY CONFIGURATION At least one repository context must exist for [gotd(8)](/gotd/8.md) to function. For each repository, access rules must be configured using the **permit** and **deny** configuration directives. Multiple access rules can be specified, and the last matching rule determines the action taken. If no rule matches, access to the repository is denied. A repository context is declared with a unique *name*, followed by repository-specific configuration directives inside curly braces: **repository** *name* {...} [got(1)](/got/1.md) and [git(1)](/git/1.md) clients can connect to a repository by including the repository's unique *name* in the request URL. Clients appending the string “.git” to the *name* will also be accepted. If desired, the *name* may contain path-separators, “/”, to expose repositories as part of a virtual client-visible directory hierarchy. The available repository configuration directives are as follows: - **deny** *identity* Deny repository access to users with the username *identity*. Group names may be matched by prepending a colon (‘:’) to *identity*. Numeric IDs are also accepted. - **path** *path* Set the path to the Git repository. Must be specified. - **permit** *mode* *identity* Permit repository access to users with the username *identity*. The *mode* argument must be set to either **ro** for read-only access, or **rw** for read-write access. Group names may be matched by prepending a colon (‘:’) to *identity*. Numeric IDs are also accepted. - **protect** {*...*} The **protect** directive may be used to protect branches and tags in a repository from being overwritten by potentially destructive client-side commands, such as when **got** **send** **-f** and **git** **push** **-f** are used to change the history of a branch. To build a set of protected branches and tags, multiple **protect** directives may be specified per repository and multiple **protect** directive parameters may be specified within curly braces. The available **protect** parameters are as follows: - **branch** *name* Protect the named branch. The branch may be created if it does not exist yet. Attempts to delete the branch or change its history will be denied. If the *name* does not already begin with “refs/heads/” it will be looked up in the “refs/heads/” reference namespace. - **branch** **namespace** *namespace* Protect the given reference namespace, assuming that references in this namespace represent branches. New branches may be created in the namespace. Attempts to change the history of branches or delete them will be denied. The *namespace* argument must be absolute, starting with “refs/”. - **tag** **namespace** *namespace* Protect the given reference namespace, assuming that references in this namespace represent tags. New tags may be created in the namespace. Attempts to change or delete existing tags will be denied. The *namespace* argument must be absolute, starting with “refs/”. The special reference namespaces “refs/got/” and “refs/remotes/” do not need to be listed in **gotd.conf**. These namespaces are always protected and even attempts to create new references in these namespaces will always be denied. - **notify** {*...*} The **notify** directive enables notifications about new commits or tags added to the repository. Notifications via email require an SMTP daemon which accepts mail for forwarding without requiring client authentication or encryption. On OpenBSD the [smtpd(8)](/smtpd/8.md) daemon can be used for this purpose. The default content of email notifications looks similar to the output of the **got** **log** **-d** command. Notifications via HTTP require a HTTP or HTTPS server which is accepting POST requests with or without HTTP Basic authentication. Depending on the use case a custom server-side CGI script may be required for the processing of notifications. HTTP notifications can achieve functionality similar to Git's server-side post-receive hook script with [gotd(8)](/gotd/8.md) by triggering arbitrary post-commit actions via the HTTP server. The **notify** directive expects parameters which must be enclosed in curly braces. The available parameters are as follows: - **branch** *name* Send notifications about commits to the named branch. The *name* will be looked up in the “refs/heads/” reference namespace. This directive may be specified multiple times to build a list of branches to send notifications for. If neither a **branch** nor a **reference** **namespace** are specified then changes to any reference will trigger notifications. - **reference** **namespace** *namespace* Send notifications about commits or tags within a reference namespace. This directive may be specified multiple times to build a list of namespaces to send notifications for. If neither a **branch** nor a **reference** **namespace** are specified then changes to any reference will trigger notifications. - **email** \[**from** *sender*\] **to** *recipient* \[**reply** **to** *responder*\] \[**relay** *hostname* \[**port** *port*\]\] Send notifications via email to the specified *recipient*. This directive may be specified multiple times to build a list of recipients to send notifications to. The *recipient* must be an email addresses that accepts mail. The *sender* will be used as the From address. If not specified, the sender defaults to an email address composed of the user account running [gotd(8)](/gotd/8.md) and the local hostname. If a *responder* is specified via the **reply** **to** directive, the *responder* will be used as the Reply-to address. Setting the Reply-to header can be useful if replies should go to a mailing list instead of the *sender*, for example. By default, mail will be sent to the SMTP server listening on the loopback address 127.0.0.1 on port 25. The **relay** and **port** directives can be used to specify a different SMTP server address and port. - **url** *URL* \[**auth** *label* \[**insecure**\]\] \[**hmac** *label*\] Send notifications via HTTP. This directive may be specified multiple times to build a list of HTTP servers to send notifications to. The notification will be sent as a POST request to the given *URL*, which must be a valid HTTP URL and begin with either “http://” or “https://”. If HTTPS is used, sending of notifications will only succeed if no TLS errors occur. The optional **auth** directive enables HTTP Basic authentication. Authentication credentials must be specified in the separate [gotd-secrets.conf(5)](/gotd-secrets.conf/5.md) file, using the *label* as identifier. Unless the **insecure** option is specified the notification target *URL* must be a “https://” URL to avoid leaking of authentication credentials. If a **hmac** secret is provided, the request body will be signed using HMAC, allowing the receiver to verify the notification message's authenticity and integrity. The HMAC secret to use must be specified in the separate [gotd-secrets.conf(5)](/gotd-secrets.conf/5.md) file, using the *label* as identifier. The signature uses HMAC-SHA256 and will be sent in the HTTP header “X-Gotd-Signature”. The request body contains a JSON object with a “notifications” property containing an array of notification objects. The following notification object properties are always present: - repo The repository name as a string. - authenticated\_user The committer's user account as authenticated by [gotd(8)](/gotd/8.md) as a string. - type The notification object type as a string. Each notification object carries additional type-specific properties. The types and their type-specific properties are: - commit The commit notification object has the following fields. Except where noted, all are optional. - short Boolean, indicates whether the object has all the fields set. When several commits are batched in a single send operation, not all of the fields are available for each commit object. - id The commit ID as string, may be abbreviated. - committer An object with the committer information with the following fields: - full Committer's full name. - name Committer's name. - mail Committer's mail address. - user Committer's username. This is the only field guaranteed to be set. - author An object with the author information. Has the same fields as the ‘committer’ but may be unset. - date Number, representing the number of seconds since the Epoch in UTC. - short\_message The first line of the commit message. This field is always set. - message The complete commit message, may be unset. - diffstat An object with the summarized changes, may be unset. Contains a ‘files’ field with an array of objects describing the changes per-file and a ‘total’ field with the cumulative changes. The changes per-file contains the following fields: - action A string describing the action, can be “added”, “deleted”, “modified”, “mode changed”, or “unknown”. - file The file path. - added The number of lines added. - removed The number of lines removed. The ‘total’ object contains two fields: ‘added’ and ‘removed’ which are the number of added and removed lines respectively. - branch-deleted The branch deleted notifications has the following fields, all guaranteed to be set: - ref The removed branch reference. - id The hash of the commit pointed by the deleted branch. - tag The tag notification has the following fields, all guaranteed to be set: - tag The tag reference. - tagger The user information, with the same format of the ‘committer’ field for the ‘commit’ notification but with all the field guaranteed to be set. - date Number, representing the number of seconds since the Epoch in UTC. - object The object being tagged. It contains the fields ‘type’ with the object type and ‘id’ with the object id being tagged. - message The tag message. ## FILES - */etc/gotd.conf* Location of the **gotd.conf** configuration file. ## EXAMPLES ``` # Run as the default user: user _gotd # Listen on the default socket: listen on "/var/run/gotd.sock" # This repository can be accessed via ssh://user@example.com/src repository "src" { path "/var/git/src.git" permit rw flan_hacker permit rw :developers permit ro anonymous protect branch "main" protect tag namespace "refs/tags/" } # This repository can be accessed via # ssh://user@example.com/openbsd/ports repository "openbsd/ports" { path "/var/git/ports.git" permit rw :porters permit ro anonymous deny flan_hacker protect { branch "main" tag namespace "refs/tags/" } notify { branch "main" reference namespace "refs/tags/" email to openbsd-ports-changes@example.com } } # Use a larger request timeout value: connection request timeout 2h # Some users are granted a higher concurrent connection limit: connection { limit user flan_hacker 16 limit user anonymous 32 } ``` ## SEE ALSO [got(1)](/got/1.md), [gotsh(1)](/gotsh/1.md), [gotd-secrets.conf(5)](/gotd-secrets.conf/5.md), [gotd(8)](/gotd/8.md)