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feat: full payload templating support for webhook notifier#5011

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siavashs merged 2 commits intoprometheus:mainfrom
TheMeier:webhook_tojson
Mar 3, 2026
Merged

feat: full payload templating support for webhook notifier#5011
siavashs merged 2 commits intoprometheus:mainfrom
TheMeier:webhook_tojson

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@TheMeier TheMeier commented Feb 12, 2026

Pull Request Checklist

Please check all the applicable boxes.

Which user-facing changes does this PR introduce?

[FEATURE] WEBHOOK: Allow to fully customize payload

@TheMeier TheMeier requested a review from siavashs February 12, 2026 20:08
@TheMeier TheMeier force-pushed the webhook_tojson branch 8 times, most recently from 9c66a3f to 5af9893 Compare February 19, 2026 19:10
@TheMeier TheMeier force-pushed the webhook_tojson branch 2 times, most recently from a5b2711 to a6372b4 Compare February 21, 2026 20:07
@TheMeier TheMeier marked this pull request as ready for review February 21, 2026 20:11
@TheMeier TheMeier changed the title WIP: full payload templating support for webhook notifier feat: full payload templating support for webhook notifier Feb 21, 2026
Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
@TheMeier TheMeier force-pushed the webhook_tojson branch 2 times, most recently from 20eaab2 to 88dbb15 Compare March 1, 2026 19:23
Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
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LGTM

@siavashs siavashs merged commit 47ecc27 into prometheus:main Mar 3, 2026
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coatico pushed a commit to coatico/alertmanager that referenced this pull request Mar 10, 2026
…s#5011)

Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
Signed-off-by: VAN LINT <marnix.vanlint@worldline.com>
coatico pushed a commit to coatico/alertmanager that referenced this pull request Mar 10, 2026
…s#5011)

Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
Signed-off-by: VAN LINT <marnix.vanlint@worldline.com>
SoloJacobs pushed a commit to SoloJacobs/alertmanager that referenced this pull request Mar 15, 2026
…s#5011)

Signed-off-by: Christoph Maser <christoph.maser+github@gmail.com>
SoloJacobs added a commit to SoloJacobs/alertmanager that referenced this pull request Apr 6, 2026
* [CHANGE] `go get github.com/prometheus/alertmanager/ui` will now fail as compiled UI assets are no longer checked into the repository. Downstream builds that rely on these assets being present in the source tree must now build the UI from source. prometheus#5113
* [CHANGE] The '--enable-feature=auto-gomaxprocs' option is deprecated and will be removed in v0.33. This flag currently has no effect and can be safely removed from any startup scripts. prometheus#5090
* [CHANGE] Update internal function signatures across multiple packages. This affects any project that integrates `Alertmanager` code.
* [ENHANCEMENT] Add static asset caching. prometheus#5113
* [ENHANCEMENT] Reduce memory allocations through pre-sizing collections and batch allocation. prometheus#5020
* [ENHANCEMENT] Replace help with documentation in navigation bar. prometheus#4943
* [ENHANCEMENT] docs(ha): Update high availability documentation. prometheus#5136
* [ENHANCEMENT] docs: Add `auth_secret_file` for smtp in document. prometheus#5036
* [ENHANCEMENT] docs: Add description for global `telegram_bot_token`. prometheus#5114
* [ENHANCEMENT] docs: Add note about notifier timeouts. prometheus#5077
* [ENHANCEMENT] docs: Fix `force_implicit_tls` config field name. prometheus#5030
* [ENHANCEMENT] docs: Link community supported integrations. prometheus#4978
* [ENHANCEMENT] docs: Remove duplicate header. prometheus#5034
* [ENHANCEMENT] docs: Update mutual tls reference in high availability documentation. prometheus#5120
* [ENHANCEMENT] tracing: Use noop spans when tracing disabled. prometheus#5118
* [FEATURE] Add silence annotations. prometheus#4965
* [FEATURE] Add silence logging option. prometheus#4163
* [FEATURE] Add support for multiple matcher set silences. prometheus#4957
* [FEATURE] Add the reason for notifying in dedup stage. prometheus#4971
* [FEATURE] mattermost: Flatten attachments into top-level config. prometheus#5009
* [FEATURE] mattermost: Support global webhook url. prometheus#4998
* [FEATURE] slack: Add default color from template. prometheus#5014
* [FEATURE] slack: Allow receiver to edit existing messages. prometheus#5007
* [FEATURE] template: Add dict, map and append functions. prometheus#5093
* [FEATURE] webhook: Add full payload templating support for notifier. prometheus#5011
* [BUGFIX] config: Check for empty cluster tls client config. prometheus#5126
* [BUGFIX] config: Don't crash upon reading empty config for notifier. prometheus#4979
* [BUGFIX] config: Fix ipv6 address handling in hostport.string(). prometheus#5040
* [BUGFIX] mattermost: Omit empty text field in notifications. prometheus#4985
* [BUGFIX] telegram: Send fallback message when notification exceeds character limit. prometheus#5074
* [BUGFIX] ui: Fix escaping for matcher values with quotes. prometheus#4862
* [BUGFIX] ui: Handle special chars in silence regex-matchers. prometheus#4942
* [BUGFIX] ui: Support utf-8 label names in matchers. prometheus#5089

Signed-off-by: Solomon Jacobs <solomonjacobs@protonmail.com>
@SoloJacobs SoloJacobs mentioned this pull request Apr 6, 2026
ultrotter pushed a commit that referenced this pull request Apr 7, 2026
* [CHANGE] `go get github.com/prometheus/alertmanager/ui` will now fail as compiled UI assets are no longer checked into the repository. Downstream builds that rely on these assets being present in the source tree must now build the UI from source. #5113
* [CHANGE] The '--enable-feature=auto-gomaxprocs' option is deprecated and will be removed in v0.33. This flag currently has no effect and can be safely removed from any startup scripts. #5090
* [CHANGE] Update internal function signatures across multiple packages. This affects any project that integrates `Alertmanager` code.
* [ENHANCEMENT] Add static asset caching. #5113
* [ENHANCEMENT] Reduce memory allocations through pre-sizing collections and batch allocation. #5020
* [ENHANCEMENT] Replace help with documentation in navigation bar. #4943
* [ENHANCEMENT] docs(ha): Update high availability documentation. #5136
* [ENHANCEMENT] docs: Add `auth_secret_file` for smtp in document. #5036
* [ENHANCEMENT] docs: Add description for global `telegram_bot_token`. #5114
* [ENHANCEMENT] docs: Add note about notifier timeouts. #5077
* [ENHANCEMENT] docs: Fix `force_implicit_tls` config field name. #5030
* [ENHANCEMENT] docs: Link community supported integrations. #4978
* [ENHANCEMENT] docs: Remove duplicate header. #5034
* [ENHANCEMENT] docs: Update mutual tls reference in high availability documentation. #5120
* [ENHANCEMENT] tracing: Use noop spans when tracing disabled. #5118
* [FEATURE] Add silence annotations. #4965
* [FEATURE] Add silence logging option. #4163
* [FEATURE] Add support for multiple matcher set silences. #4957
* [FEATURE] Add the reason for notifying in dedup stage. #4971
* [FEATURE] mattermost: Flatten attachments into top-level config. #5009
* [FEATURE] mattermost: Support global webhook url. #4998
* [FEATURE] slack: Add default color from template. #5014
* [FEATURE] slack: Allow receiver to edit existing messages. #5007
* [FEATURE] template: Add dict, map and append functions. #5093
* [FEATURE] webhook: Add full payload templating support for notifier. #5011
* [BUGFIX] config: Check for empty cluster tls client config. #5126
* [BUGFIX] config: Don't crash upon reading empty config for notifier. #4979
* [BUGFIX] config: Fix ipv6 address handling in hostport.string(). #5040
* [BUGFIX] mattermost: Omit empty text field in notifications. #4985
* [BUGFIX] telegram: Send fallback message when notification exceeds character limit. #5074
* [BUGFIX] ui: Fix escaping for matcher values with quotes. #4862
* [BUGFIX] ui: Handle special chars in silence regex-matchers. #4942
* [BUGFIX] ui: Support utf-8 label names in matchers. #5089

Signed-off-by: Solomon Jacobs <solomonjacobs@protonmail.com>
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