Add HTTP headers support to common HTTP client.#416
Add HTTP headers support to common HTTP client.#416roidelapluie merged 1 commit intoprometheus:mainfrom
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Mailing list discussion: https://groups.google.com/g/prometheus-developers/c/p9HTlPzwUEo |
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Wondering if this will enable what was intended in #326 |
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config/headers.go
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| Headers map[string][]string `yaml:"headers,omitempty" json:"headers,omitempty"` | ||
| SecretHeaders map[string][]Secret `yaml:"secret_headers,omitempty" json:"secret_headers,omitempty"` | ||
| Files map[string][]string `yaml:"files,omitempty" json:"files,omitempty"` |
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I find this entire scheme a bit confusing, both in the non-uniformity of the names (we have normal headers, secret headers, and then just files, which I understand why can't be file headers but still), and also in the names themselves (secret headers could be interpreted as intended, a header with a secret value, or some sort of a "secret" header). Of course they'll be docs to clear this up but I still think it's less than ideal. Therefore, I propose we instead have an iterated:
type header struct {
name/key string
value string
secret secret
file string
}Which I think would be more clear and also allow for more complicated header appends. Generally a small difference though so feel free to ignore.
config/headers.go
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| if _, ok := reservedHeaders[http.CanonicalHeaderKey(k)]; ok { | ||
| return fmt.Errorf("setting header %q is not allowed", http.CanonicalHeaderKey(k)) | ||
| } |
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It would make more sense for this check to come first
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@roidelapluie @LeviHarrison what is status in this PR? At least I am interested of this feature |
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Me too! Adding headers to requests is a relatively trivial operation and multiple APIs support that |
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Just some small revisions @roidelapluie friendly ping |
This is named `http_headers` so it does not clash with blackbox exporter's headers and Prometheus remote client's headers, which are simple maps. Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>
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@LeviHarrison here you go 🙂 |
LeviHarrison
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LGTM, thanks
As usual we'll need to update Prom docs after this
…5472) [](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [github.com/prometheus/common](https://togithub.com/prometheus/common) | `v0.53.0` -> `v0.54.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>prometheus/common (github.com/prometheus/common)</summary> ### [`v0.54.0`](https://togithub.com/prometheus/common/releases/tag/v0.54.0) [Compare Source](https://togithub.com/prometheus/common/compare/v0.53.0...v0.54.0) #### What's Changed - Bump golang.org/x/net from 0.22.0 to 0.23.0 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/624](https://togithub.com/prometheus/common/pull/624) - Bump golang.org/x/net from 0.22.0 to 0.23.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/623](https://togithub.com/prometheus/common/pull/623) - Add HTTP headers support to common HTTP client. by [@​roidelapluie](https://togithub.com/roidelapluie) in [https://github.com/prometheus/common/pull/416](https://togithub.com/prometheus/common/pull/416) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/633](https://togithub.com/prometheus/common/pull/633) - Bump github.com/aws/aws-sdk-go from 1.51.11 to 1.51.32 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/632](https://togithub.com/prometheus/common/pull/632) - Bump golang.org/x/oauth2 from 0.18.0 to 0.19.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/628](https://togithub.com/prometheus/common/pull/628) - Bump golang.org/x/net from 0.23.0 to 0.24.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/630](https://togithub.com/prometheus/common/pull/630) - Bump github.com/prometheus/client_model from 0.6.0 to 0.6.1 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/631](https://togithub.com/prometheus/common/pull/631) - Bump google.golang.org/protobuf from 1.33.0 to 1.34.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/629](https://togithub.com/prometheus/common/pull/629) - Use common interface to fetch secrets in HTTP client config by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/538](https://togithub.com/prometheus/common/pull/538) - Add support for secret refs via a secret manager by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/572](https://togithub.com/prometheus/common/pull/572) - oauth2RoundTripper: Avoid race condition and readability changes. by [@​bwplotka](https://togithub.com/bwplotka) in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/636](https://togithub.com/prometheus/common/pull/636) - Bump github.com/aws/aws-sdk-go from 1.51.32 to 1.53.14 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/638](https://togithub.com/prometheus/common/pull/638) - Bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/639](https://togithub.com/prometheus/common/pull/639) - feat: add time template helpers by [@​freak12techno](https://togithub.com/freak12techno) in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) #### New Contributors - [@​bwplotka](https://togithub.com/bwplotka) made their first contribution in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - [@​freak12techno](https://togithub.com/freak12techno) made their first contribution in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) **Full Changelog**: prometheus/common@v0.53.0...v0.54.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/open-telemetry/opentelemetry-go). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zNzcuOCIsInVwZGF0ZWRJblZlciI6IjM3LjM3Ny44IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJTa2lwIENoYW5nZWxvZyIsImRlcGVuZGVuY2llcyJdfQ==--> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
…5709) [](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [github.com/prometheus/common](https://togithub.com/prometheus/common) | `v0.53.0` -> `v0.54.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- ### Release Notes <details> <summary>prometheus/common (github.com/prometheus/common)</summary> ### [`v0.54.0`](https://togithub.com/prometheus/common/releases/tag/v0.54.0) [Compare Source](https://togithub.com/prometheus/common/compare/v0.53.0...v0.54.0) #### What's Changed - Bump golang.org/x/net from 0.22.0 to 0.23.0 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/624](https://togithub.com/prometheus/common/pull/624) - Bump golang.org/x/net from 0.22.0 to 0.23.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/623](https://togithub.com/prometheus/common/pull/623) - Add HTTP headers support to common HTTP client. by [@​roidelapluie](https://togithub.com/roidelapluie) in [https://github.com/prometheus/common/pull/416](https://togithub.com/prometheus/common/pull/416) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/633](https://togithub.com/prometheus/common/pull/633) - Bump github.com/aws/aws-sdk-go from 1.51.11 to 1.51.32 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/632](https://togithub.com/prometheus/common/pull/632) - Bump golang.org/x/oauth2 from 0.18.0 to 0.19.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/628](https://togithub.com/prometheus/common/pull/628) - Bump golang.org/x/net from 0.23.0 to 0.24.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/630](https://togithub.com/prometheus/common/pull/630) - Bump github.com/prometheus/client_model from 0.6.0 to 0.6.1 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/631](https://togithub.com/prometheus/common/pull/631) - Bump google.golang.org/protobuf from 1.33.0 to 1.34.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/629](https://togithub.com/prometheus/common/pull/629) - Use common interface to fetch secrets in HTTP client config by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/538](https://togithub.com/prometheus/common/pull/538) - Add support for secret refs via a secret manager by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/572](https://togithub.com/prometheus/common/pull/572) - oauth2RoundTripper: Avoid race condition and readability changes. by [@​bwplotka](https://togithub.com/bwplotka) in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/636](https://togithub.com/prometheus/common/pull/636) - Bump github.com/aws/aws-sdk-go from 1.51.32 to 1.53.14 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/638](https://togithub.com/prometheus/common/pull/638) - Bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/639](https://togithub.com/prometheus/common/pull/639) - feat: add time template helpers by [@​freak12techno](https://togithub.com/freak12techno) in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) #### New Contributors - [@​bwplotka](https://togithub.com/bwplotka) made their first contribution in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - [@​freak12techno](https://togithub.com/freak12techno) made their first contribution in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) **Full Changelog**: prometheus/common@v0.53.0...v0.54.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View repository job log [here](https://developer.mend.io/github/open-telemetry/opentelemetry-go-contrib). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy4zNzcuOCIsInVwZGF0ZWRJblZlciI6IjM3LjM3Ny44IiwidGFyZ2V0QnJhbmNoIjoibWFpbiIsImxhYmVscyI6WyJTa2lwIENoYW5nZWxvZyIsImRlcGVuZGVuY2llcyJdfQ==--> Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
[](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [github.com/prometheus/common](https://togithub.com/prometheus/common) | `v0.53.0` -> `v0.54.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- > [!WARNING] > Some dependencies could not be looked up. Check the Dependency Dashboard for more information. --- ### Release Notes <details> <summary>prometheus/common (github.com/prometheus/common)</summary> ### [`v0.54.0`](https://togithub.com/prometheus/common/releases/tag/v0.54.0) [Compare Source](https://togithub.com/prometheus/common/compare/v0.53.0...v0.54.0) #### What's Changed - Bump golang.org/x/net from 0.22.0 to 0.23.0 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/624](https://togithub.com/prometheus/common/pull/624) - Bump golang.org/x/net from 0.22.0 to 0.23.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/623](https://togithub.com/prometheus/common/pull/623) - Add HTTP headers support to common HTTP client. by [@​roidelapluie](https://togithub.com/roidelapluie) in [https://github.com/prometheus/common/pull/416](https://togithub.com/prometheus/common/pull/416) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/633](https://togithub.com/prometheus/common/pull/633) - Bump github.com/aws/aws-sdk-go from 1.51.11 to 1.51.32 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/632](https://togithub.com/prometheus/common/pull/632) - Bump golang.org/x/oauth2 from 0.18.0 to 0.19.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/628](https://togithub.com/prometheus/common/pull/628) - Bump golang.org/x/net from 0.23.0 to 0.24.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/630](https://togithub.com/prometheus/common/pull/630) - Bump github.com/prometheus/client_model from 0.6.0 to 0.6.1 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/631](https://togithub.com/prometheus/common/pull/631) - Bump google.golang.org/protobuf from 1.33.0 to 1.34.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/629](https://togithub.com/prometheus/common/pull/629) - Use common interface to fetch secrets in HTTP client config by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/538](https://togithub.com/prometheus/common/pull/538) - Add support for secret refs via a secret manager by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/572](https://togithub.com/prometheus/common/pull/572) - oauth2RoundTripper: Avoid race condition and readability changes. by [@​bwplotka](https://togithub.com/bwplotka) in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/636](https://togithub.com/prometheus/common/pull/636) - Bump github.com/aws/aws-sdk-go from 1.51.32 to 1.53.14 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/638](https://togithub.com/prometheus/common/pull/638) - Bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/639](https://togithub.com/prometheus/common/pull/639) - feat: add time template helpers by [@​freak12techno](https://togithub.com/freak12techno) in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) #### New Contributors - [@​bwplotka](https://togithub.com/bwplotka) made their first contribution in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - [@​freak12techno](https://togithub.com/freak12techno) made their first contribution in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) **Full Changelog**: prometheus/common@v0.53.0...v0.54.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "on tuesday" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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) [](https://renovatebot.com) This PR contains the following updates: | Package | Change | Age | Adoption | Passing | Confidence | |---|---|---|---|---|---| | [github.com/prometheus/common](https://togithub.com/prometheus/common) | `v0.53.0` -> `v0.54.0` | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | [](https://docs.renovatebot.com/merge-confidence/) | --- > [!WARNING] > Some dependencies could not be looked up. Check the Dependency Dashboard for more information. --- ### Release Notes <details> <summary>prometheus/common (github.com/prometheus/common)</summary> ### [`v0.54.0`](https://togithub.com/prometheus/common/releases/tag/v0.54.0) [Compare Source](https://togithub.com/prometheus/common/compare/v0.53.0...v0.54.0) #### What's Changed - Bump golang.org/x/net from 0.22.0 to 0.23.0 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/624](https://togithub.com/prometheus/common/pull/624) - Bump golang.org/x/net from 0.22.0 to 0.23.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/623](https://togithub.com/prometheus/common/pull/623) - Add HTTP headers support to common HTTP client. by [@​roidelapluie](https://togithub.com/roidelapluie) in [https://github.com/prometheus/common/pull/416](https://togithub.com/prometheus/common/pull/416) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/633](https://togithub.com/prometheus/common/pull/633) - Bump github.com/aws/aws-sdk-go from 1.51.11 to 1.51.32 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/632](https://togithub.com/prometheus/common/pull/632) - Bump golang.org/x/oauth2 from 0.18.0 to 0.19.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/628](https://togithub.com/prometheus/common/pull/628) - Bump golang.org/x/net from 0.23.0 to 0.24.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/630](https://togithub.com/prometheus/common/pull/630) - Bump github.com/prometheus/client_model from 0.6.0 to 0.6.1 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/631](https://togithub.com/prometheus/common/pull/631) - Bump google.golang.org/protobuf from 1.33.0 to 1.34.0 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/629](https://togithub.com/prometheus/common/pull/629) - Use common interface to fetch secrets in HTTP client config by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/538](https://togithub.com/prometheus/common/pull/538) - Add support for secret refs via a secret manager by [@​TheSpiritXIII](https://togithub.com/TheSpiritXIII) in [https://github.com/prometheus/common/pull/572](https://togithub.com/prometheus/common/pull/572) - oauth2RoundTripper: Avoid race condition and readability changes. by [@​bwplotka](https://togithub.com/bwplotka) in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - Synchronize common files from prometheus/prometheus by [@​prombot](https://togithub.com/prombot) in [https://github.com/prometheus/common/pull/636](https://togithub.com/prometheus/common/pull/636) - Bump github.com/aws/aws-sdk-go from 1.51.32 to 1.53.14 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/638](https://togithub.com/prometheus/common/pull/638) - Bump github.com/prometheus/client_golang from 1.19.0 to 1.19.1 in /sigv4 by [@​dependabot](https://togithub.com/dependabot) in [https://github.com/prometheus/common/pull/639](https://togithub.com/prometheus/common/pull/639) - feat: add time template helpers by [@​freak12techno](https://togithub.com/freak12techno) in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) #### New Contributors - [@​bwplotka](https://togithub.com/bwplotka) made their first contribution in [https://github.com/prometheus/common/pull/634](https://togithub.com/prometheus/common/pull/634) - [@​freak12techno](https://togithub.com/freak12techno) made their first contribution in [https://github.com/prometheus/common/pull/627](https://togithub.com/prometheus/common/pull/627) **Full Changelog**: prometheus/common@v0.53.0...v0.54.0 </details> --- ### Configuration 📅 **Schedule**: Branch creation - "on tuesday" (UTC), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Disabled by config. 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@roidelapluie I think this PR introduced an issue in JSON marshalling. Could you take a look at #651 please? |
| ProxyConfig `yaml:",inline"` | ||
| // HTTPHeaders specify headers to inject in the requests. Those headers | ||
| // could be marshalled back to the users. | ||
| HTTPHeaders *Headers `yaml:"http_headers" json:"http_headers"` |
There was a problem hiding this comment.
Should we at least make it omit empty?
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@roidelapluie any chance you could update the docs to reflect the existence of CTRL-F of the docs yields zero results for |
This is named
http_headersso it does not clash with blackbox exporter's headers and Prometheus remote client's headers, which are simple maps.Signed-off-by: Julien Pivotto roidelapluie@o11y.eu