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This was intended to be a small followup for https://github.com/go-gitea/gitea/pull/23712, but...here we are. 1. Our docs currently use `slug` as the entire URL, which makes refactoring tricky (see https://github.com/go-gitea/gitea/pull/23712). Instead, this PR attempts to make future refactoring easier by using slugs as an extension of the section. (Hugo terminology) - What the above boils down to is this PR attempts to use directory organization as URL management. e.g. `usage/comparison.en-us.md` -> `en-us/usage/comparison/`, `usage/packages/overview.en-us.md` -> `en-us/usage/packages/overview/` - Technically we could even remove `slug`, as Hugo defaults to using filename, however at least with this PR it means `slug` only needs to be the name for the **current file** rather than an entire URL 2. This PR adds appropriate aliases (redirects) for pages, so anything on the internet that links to our docs should hopefully not break. 3. A minor nit I've had for a while, renaming `seek-help` to `support`. It's a minor thing, but `seek-help` has a strange connotation to it. 4. The commits are split such that you can review the first which is the "actual" change, and the second is added redirects so that the first doesn't break links elsewhere. --------- Signed-off-by: jolheiser <john.olheiser@gmail.com>
179 lines
6 KiB
Markdown
179 lines
6 KiB
Markdown
---
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date: "2019-08-17T10:20:00+01:00"
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title: "GPG Commit Signatures"
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slug: "signing"
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weight: 50
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toc: false
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draft: false
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aliases:
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- /en-us/signing
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menu:
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sidebar:
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parent: "administration"
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name: "GPG Commit Signatures"
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weight: 50
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identifier: "signing"
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---
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# GPG Commit Signatures
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**Table of Contents**
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{{< toc >}}
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Gitea will verify GPG commit signatures in the provided tree by
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checking if the commits are signed by a key within the Gitea database,
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or if the commit matches the default key for Git.
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Keys are not checked to determine if they have expired or revoked.
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Keys are also not checked with keyservers.
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A commit will be marked with a grey unlocked icon if no key can be
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found to verify it. If a commit is marked with a red unlocked icon,
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it is reported to be signed with a key with an id.
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Please note: The signer of a commit does not have to be an author or
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committer of a commit.
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This functionality requires Git >= 1.7.9 but for full functionality
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this requires Git >= 2.0.0.
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## Automatic Signing
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There are a number of places where Gitea will generate commits itself:
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- Repository Initialisation
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- Wiki Changes
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- CRUD actions using the editor or the API
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- Merges from Pull Requests
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Depending on configuration and server trust you may want Gitea to
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sign these commits.
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## Installing and generating a GPG key for Gitea
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It is up to a server administrator to determine how best to install
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a signing key. Gitea generates all its commits using the server `git`
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command at present - and therefore the server `gpg` will be used for
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signing (if configured.) Administrators should review best-practices
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for GPG - in particular it is probably advisable to only install a
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signing secret subkey without the master signing and certifying secret
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key.
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## General Configuration
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Gitea's configuration for signing can be found with the
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`[repository.signing]` section of `app.ini`:
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```ini
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...
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[repository.signing]
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SIGNING_KEY = default
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SIGNING_NAME =
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SIGNING_EMAIL =
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INITIAL_COMMIT = always
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CRUD_ACTIONS = pubkey, twofa, parentsigned
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WIKI = never
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MERGES = pubkey, twofa, basesigned, commitssigned
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...
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```
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### `SIGNING_KEY`
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The first option to discuss is the `SIGNING_KEY`. There are three main
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options:
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- `none` - this prevents Gitea from signing any commits
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- `default` - Gitea will default to the key configured within `git config`
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- `KEYID` - Gitea will sign commits with the gpg key with the ID
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`KEYID`. In this case you should provide a `SIGNING_NAME` and
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`SIGNING_EMAIL` to be displayed for this key.
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The `default` option will interrogate `git config` for
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`commit.gpgsign` option - if this is set, then it will use the results
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of the `user.signingkey`, `user.name` and `user.email` as appropriate.
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Please note: by adjusting Git's `config` file within Gitea's
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repositories, `SIGNING_KEY=default` could be used to provide different
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signing keys on a per-repository basis. However, this is clearly not an
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ideal UI and therefore subject to change.
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**Since 1.17**, Gitea runs git in its own home directory `[git].HOME_PATH` (default to `%(APP_DATA_PATH)/home`)
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and uses its own config `{[git].HOME_PATH}/.gitconfig`.
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If you have your own customized git config for Gitea, you should set these configs in system git config (aka `/etc/gitconfig`)
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or the Gitea internal git config `{[git].HOME_PATH}/.gitconfig`.
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Related home files for git command (like `.gnupg`) should also be put in Gitea's git home directory `[git].HOME_PATH`.
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If you like to keep the `.gnupg` directory outside of `{[git].HOME_PATH}/`, consider setting the `$GNUPGHOME` environment variable to your preferred location.
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### `INITIAL_COMMIT`
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This option determines whether Gitea should sign the initial commit
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when creating a repository. The possible values are:
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- `never`: Never sign
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- `pubkey`: Only sign if the user has a public key
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- `twofa`: Only sign if the user logs in with two factor authentication
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- `always`: Always sign
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Options other than `never` and `always` can be combined as a comma
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separated list. The commit will be signed if all selected options are true.
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### `WIKI`
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This options determines if Gitea should sign commits to the Wiki.
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The possible values are:
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- `never`: Never sign
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- `pubkey`: Only sign if the user has a public key
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- `twofa`: Only sign if the user logs in with two-factor authentication
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- `parentsigned`: Only sign if the parent commit is signed.
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- `always`: Always sign
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Options other than `never` and `always` can be combined as a comma
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separated list. The commit will be signed if all selected options are true.
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### `CRUD_ACTIONS`
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This option determines if Gitea should sign commits from the web
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editor or API CRUD actions. The possible values are:
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- `never`: Never sign
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- `pubkey`: Only sign if the user has a public key
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- `twofa`: Only sign if the user logs in with two-factor authentication
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- `parentsigned`: Only sign if the parent commit is signed.
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- `always`: Always sign
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Options other than `never` and `always` can be combined as a comma
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separated list. The change will be signed if all selected options are true.
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### `MERGES`
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This option determines if Gitea should sign merge commits from PRs.
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The possible options are:
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- `never`: Never sign
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- `pubkey`: Only sign if the user has a public key
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- `twofa`: Only sign if the user logs in with two-factor authentication
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- `basesigned`: Only sign if the parent commit in the base repo is signed.
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- `headsigned`: Only sign if the head commit in the head branch is signed.
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- `commitssigned`: Only sign if all the commits in the head branch to the merge point are signed.
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- `approved`: Only sign approved merges to a protected branch.
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- `always`: Always sign
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Options other than `never` and `always` can be combined as a comma
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separated list. The merge will be signed if all selected options are true.
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## Obtaining the Public Key of the Signing Key
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The public key used to sign Gitea's commits can be obtained from the API at:
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```sh
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/api/v1/signing-key.gpg
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```
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In cases where there is a repository specific key this can be obtained from:
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```sh
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/api/v1/repos/:username/:reponame/signing-key.gpg
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```
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