add information about raw access to the README

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Tobias Gabriel 2024-11-14 08:26:13 +01:00
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commit db66857bcd

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@ -242,18 +242,14 @@ documentation.
## Using `setup-go` on GHES
`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled. When dynamically downloading Go
distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions)
on github.com (outside of the appliance). These calls to `actions/go-versions` are made via unauthenticated requests,
which are limited
to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting). If
more requests are made within the time frame, then you will start to see rate-limit errors during downloading that looks
like: `##[error]API rate limit exceeded for...`. After that error the action will try to download versions directly
from https://storage.googleapis.com/golang, but it also can have rate limit so it's better to put token.
`setup-go` comes pre-installed on the appliance with GHES if Actions is enabled.
When dynamically downloading Go distributions, `setup-go` downloads distributions from [`actions/go-versions`](https://github.com/actions/go-versions) on github.com (outside of the appliance).
To get a higher rate limit, you
can [generate a personal access token on github.com](https://github.com/settings/tokens/new) and pass it as the `token`
input for the action:
These calls to `actions/go-versions` are made via unauthenticated requests, which are limited to [60 requests per hour per IP](https://docs.github.com/en/rest/overview/resources-in-the-rest-api#rate-limiting).
If more requests are made within the time frame, then the action leverages the `raw API` to retrieve the version-manifest. This approach does not impose a rate limit and hence facilitates unrestricted consumption. This is particularly beneficial for GHES runners, which often share the same IP, to avoid the quick exhaustion of the unauthenticated rate limit.
If that fails as well the action will try to download versions directly from https://storage.googleapis.com/golang.
If that fails as well you can get a higher rate limit with [generating a personal access token on github.com](https://github.com/settings/tokens/new) and passing it as the `token` input to the action:
```yaml
uses: actions/setup-go@v5
@ -262,8 +258,7 @@ with:
go-version: '1.18'
```
If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the
runner's tool cache.
If the runner is not able to access github.com, any Go versions requested during a workflow run must come from the runner's tool cache.
See "[Setting up the tool cache on self-hosted runners without internet access](https://docs.github.com/en/enterprise-server@3.2/admin/github-actions/managing-access-to-actions-from-githubcom/setting-up-the-tool-cache-on-self-hosted-runners-without-internet-access)"
for more information.