COM-191 - prefill CloudFormation template params in Launch Stack link by rossnelson · Pull Request #3619 · temporalio/ui

rossnelson · 2026-06-30T20:04:50Z

Summary

The serverless worker deployment "Launch Stack" button (CloudFormation, under the "I don't have a role yet" accordion) previously linked to a bare CloudFormation console URL and prefilled nothing. This wires the form's field values into the launch URL using AWS's param_<ParameterName>=<value> convention so the CloudFormation quick-create form opens with the template and parameters prefilled.

Changes

compute-fields.svelte: launchStackHref is now a $derived.by() that, when cfnTemplateUrl is set, builds a #/stacks/quickcreate?templateURL=... URL and appends:

param_AssumeRoleExternalId from roleExternalId
param_LambdaFunctionARNs from lambdaArn

RoleName is left to the template default (no form field exists for it). Each param_* entry is omitted when its source field is empty, and the template URL plus every param value are encodeURIComponent-encoded. When cfnTemplateUrl is falsy, the existing bare-console fallback is preserved.

Decisions worth a look

RoleName: left at the template default since there is no form field for it. Easy to expose a role-name input if we want one.
quickcreate vs create/review: used #/stacks/quickcreate for the prefilled-but-editable UX. Can pin to #/stacks/create/review for strict parity with the S3 export / Kinesis audit-log forms if preferred.

Notes for the integrator (out of scope here)

End-to-end this requires cloud-ui to pass a real, publicly-hosted cfnTemplateUrl and repack the tarball. The local temporal-worker-role.yaml is download-only and currently has no Parameters section; the parameterized hosted template is handled separately in cloud-ui.

Test plan

pnpm check clean
pnpm lint clean
Verified generated href for sample inputs contains the encoded templateURL, param_AssumeRoleExternalId, and param_LambdaFunctionARNs, and omits empty params

vercel · 2026-06-30T20:04:56Z

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
holocene	Ready	Preview, Comment	Jul 7, 2026 4:19pm

laurakwhit · 2026-07-07T18:01:07Z

-  );
+  const launchStackHref = $derived.by(() => {
+    if (!cfnTemplateUrl) {
+      return 'https://console.aws.amazon.com/cloudformation/';


NIT: We could define this as a variable to use here and on line 78 so we'd only ever have to update it in one place.

Auto-generated version bump from 2.51.1 to 2.52.0 Bump type: minor Changes included: - [`9c6fcd54`](9c6fcd5) Add direct SSO redirect and backend logout (#3590) - [`feab0d90`](feab0d9) a11y(4.1.3): Toaster role="log" → per-toast role="status"/"alert" for correct AT announcement semantics (#3560) - [`d7bbfb01`](d7bbfb0) a11y(2.5.8): toast — replace bare close button with IconButton (36×36 px) (#3553) - [`4efd6ab6`](4efd6ab) a11y(3.3.1): Holocene input primitives — add aria-invalid, aria-describedby, and uniform live-region error announcement (#3554) - [`0600b700`](0600b70) Use green only (#3599) - [`94107549`](9410754) Clarify activity pause timeout behavior (#3600) - [`9f88d5a8`](9f88d5a) Bump node version to 22.23.1 or newer to fix issue from previous security release (#3604) - [`ca4104ae`](ca4104a) Update reason copy and inputs (#3588) - [`51db73fa`](51db73f) Update batch operation reason input hint (#3605) - [`836d7c55`](836d7c5) a11y(2.4.3): route navigation — move focus to the main landmark on afterNavigate, not just scroll (#3538) - [`4ee95696`](4ee9569) Improve re-renders for large encoded event histories (#3592) - [`fa5e7aa1`](fa5e7aa) feature/schedules (#3603) - [`0d9467fd`](0d9467f) Default includeHeartbeatDetails and includeLastFailure to true for getActivityExecution and pollActivityExecution (#3521) - [`e5bc514e`](e5bc514) fix schedules: duplicate key (#3612) - [`f1eb489f`](f1eb489) Remove preview badge (#3581) - [`1e5173b4`](1e5173b) Add existing versions to worker create deployment version form (#3601) - [`a8552bae`](a8552ba) fix schedules -e.trim not a function (#3613) - [`0442f847`](0442f84) Fix width of ComputeBadge in VersionTableRow (#3615) - [`ddbeb54f`](ddbeb54) fix(cloud-nav): animate and stabilize side-nav collapse (#3606) - [`3cfc684b`](3cfc684) fix - schedules recent/upcoming runs - sort issue (#3616) - [`92b8875b`](92b8875) Move timestamp out of translate (#3617) - [`901258af`](901258a) Fix SAA and WF consistency (#3614) - [`99593d97`](99593d9) DT-4001 - standalone nexus operations (#3496) - [`f10d1bf1`](f10d1bf) Clamp codeblock to container width (#3621) - [`0a9d93ce`](0a9d93c) Remove unnecessary bottom-0 (#3623) - [`9dabb522`](9dabb52) chore(deps-dev): bump vite from 6.4.2 to 6.4.3 (#3610) - [`5c1854d3`](5c1854d) News Feed (#3596) - [`340da30f`](340da30) a11y(2.1.1): guard global r/R keydown so text inputs can receive the letter (#3589) - [`dd97a9d1`](dd97a9d) fix(markdown-editor): disable chromatic snapshot for preview story (#3631) - [`7db61ab9`](7db61ab) a11y(4.1.2): Table / ProgressBar / Loading primitives — expose aria-busy on data-refresh regions (#3555) - [`d2111ecf`](d2111ec) a11y(4.1.3): Add live-region wrappers for workflow status, event count, filter counts, and Banner (#3561) - [`24eabaec`](24eabae) a11y(2.4.6): guard DrawerContent against empty <h2> when title is omitted (#3595) - [`3552e307`](3552e30) Fix CodeMirror Lezer dependency mismatch (#3632) - [`7ac37199`](7ac3719) Update defaults to match workflow defaults (#3634) - [`c1f02865`](c1f0286) Draft fix for link variant handling (#3620) - [`bbbf2b8c`](bbbf2b8) Add connection status and optional Latest Version column to deployments (DT-4174) (#3618) - [`76f266f4`](76f266f) DurationInput updates (#3633) - [`07da53c5`](07da53c) COM-191 - prefill CloudFormation template params in Launch Stack link (#3619) - [`90946e0b`](90946e0) Schedules - Timeout empty defaults (#3637) - [`97f9ad39`](97f9ad3) fix(cloud-nav): smooth label fade on side-nav collapse/expand (#3628) - [`a399ed35`](a399ed3) Improve Search Attribute deletion messaging (#3629) - [`ad976d94`](ad976d9) Pass through source prop for News Feed Widget (#3638) - [`6ef84fe3`](6ef84fe) Restrict select-all to exclude workflow status (#3639) - [`4c3729f8`](4c3729f) Reduce news feed markdown whitespace (#3642) - [`aa04a9b6`](aa04a9b) feat(nexus-operations): add loading state to standalone nexus operations list page header (#3643) - [`dce2f804`](dce2f80) chore: remove unused generate-holocene-props script (#3644) - [`760bc7bc`](760bc7b) Make megaphone icon bigger (#3645) - [`c047384a`](c047384) refactor(nexus): replace hand-rolled types with @temporalio/proto (#3646)

Auto-generated version bump from 2.51.1 to 2.52.0 Bump type: minor Changes included: - [`9c6fcd54`](9c6fcd5) Add direct SSO redirect and backend logout (#3590) - [`feab0d90`](feab0d9) a11y(4.1.3): Toaster role="log" → per-toast role="status"/"alert" for correct AT announcement semantics (#3560) - [`d7bbfb01`](d7bbfb0) a11y(2.5.8): toast — replace bare close button with IconButton (36×36 px) (#3553) - [`4efd6ab6`](4efd6ab) a11y(3.3.1): Holocene input primitives — add aria-invalid, aria-describedby, and uniform live-region error announcement (#3554) - [`0600b700`](0600b70) Use green only (#3599) - [`94107549`](9410754) Clarify activity pause timeout behavior (#3600) - [`9f88d5a8`](9f88d5a) Bump node version to 22.23.1 or newer to fix issue from previous security release (#3604) - [`ca4104ae`](ca4104a) Update reason copy and inputs (#3588) - [`51db73fa`](51db73f) Update batch operation reason input hint (#3605) - [`836d7c55`](836d7c5) a11y(2.4.3): route navigation — move focus to the main landmark on afterNavigate, not just scroll (#3538) - [`4ee95696`](4ee9569) Improve re-renders for large encoded event histories (#3592) - [`fa5e7aa1`](fa5e7aa) feature/schedules (#3603) - [`0d9467fd`](0d9467f) Default includeHeartbeatDetails and includeLastFailure to true for getActivityExecution and pollActivityExecution (#3521) - [`e5bc514e`](e5bc514) fix schedules: duplicate key (#3612) - [`f1eb489f`](f1eb489) Remove preview badge (#3581) - [`1e5173b4`](1e5173b) Add existing versions to worker create deployment version form (#3601) - [`a8552bae`](a8552ba) fix schedules -e.trim not a function (#3613) - [`0442f847`](0442f84) Fix width of ComputeBadge in VersionTableRow (#3615) - [`ddbeb54f`](ddbeb54) fix(cloud-nav): animate and stabilize side-nav collapse (#3606) - [`3cfc684b`](3cfc684) fix - schedules recent/upcoming runs - sort issue (#3616) - [`92b8875b`](92b8875) Move timestamp out of translate (#3617) - [`901258af`](901258a) Fix SAA and WF consistency (#3614) - [`99593d97`](99593d9) DT-4001 - standalone nexus operations (#3496) - [`f10d1bf1`](f10d1bf) Clamp codeblock to container width (#3621) - [`0a9d93ce`](0a9d93c) Remove unnecessary bottom-0 (#3623) - [`9dabb522`](9dabb52) chore(deps-dev): bump vite from 6.4.2 to 6.4.3 (#3610) - [`5c1854d3`](5c1854d) News Feed (#3596) - [`340da30f`](340da30) a11y(2.1.1): guard global r/R keydown so text inputs can receive the letter (#3589) - [`dd97a9d1`](dd97a9d) fix(markdown-editor): disable chromatic snapshot for preview story (#3631) - [`7db61ab9`](7db61ab) a11y(4.1.2): Table / ProgressBar / Loading primitives — expose aria-busy on data-refresh regions (#3555) - [`d2111ecf`](d2111ec) a11y(4.1.3): Add live-region wrappers for workflow status, event count, filter counts, and Banner (#3561) - [`24eabaec`](24eabae) a11y(2.4.6): guard DrawerContent against empty <h2> when title is omitted (#3595) - [`3552e307`](3552e30) Fix CodeMirror Lezer dependency mismatch (#3632) - [`7ac37199`](7ac3719) Update defaults to match workflow defaults (#3634) - [`c1f02865`](c1f0286) Draft fix for link variant handling (#3620) - [`bbbf2b8c`](bbbf2b8) Add connection status and optional Latest Version column to deployments (DT-4174) (#3618) - [`76f266f4`](76f266f) DurationInput updates (#3633) - [`07da53c5`](07da53c) COM-191 - prefill CloudFormation template params in Launch Stack link (#3619) - [`90946e0b`](90946e0) Schedules - Timeout empty defaults (#3637) - [`97f9ad39`](97f9ad3) fix(cloud-nav): smooth label fade on side-nav collapse/expand (#3628) - [`a399ed35`](a399ed3) Improve Search Attribute deletion messaging (#3629) - [`ad976d94`](ad976d9) Pass through source prop for News Feed Widget (#3638) - [`6ef84fe3`](6ef84fe) Restrict select-all to exclude workflow status (#3639) - [`4c3729f8`](4c3729f) Reduce news feed markdown whitespace (#3642) - [`aa04a9b6`](aa04a9b) feat(nexus-operations): add loading state to standalone nexus operations list page header (#3643) - [`dce2f804`](dce2f80) chore: remove unused generate-holocene-props script (#3644) - [`760bc7bc`](760bc7b) Make megaphone icon bigger (#3645) - [`c047384a`](c047384) refactor(nexus): replace hand-rolled types with @temporalio/proto (#3646) Co-authored-by: rossedfort <11775628+rossedfort@users.noreply.github.com>

COM-191 - prefill CloudFormation template params in Launch Stack link

dc2eccd

vercel Bot deployed to Preview June 30, 2026 20:05 View deployment

justinschoeff reviewed Jul 6, 2026

View reviewed changes

Comment thread src/lib/components/workers/serverless-worker-form/compute-fields.svelte

Comment thread src/lib/components/workers/serverless-worker-form/compute-fields.svelte

COM-191 - use create/review path for Launch Stack link consistency

ba262c4

vercel Bot deployed to Preview July 7, 2026 16:19 View deployment

rossnelson marked this pull request as ready for review July 7, 2026 16:23

rossnelson requested a review from a team as a code owner July 7, 2026 16:23

rossnelson enabled auto-merge (squash) July 7, 2026 16:43

laurakwhit approved these changes Jul 7, 2026

View reviewed changes

rossnelson merged commit 07da53c into main Jul 7, 2026
21 checks passed

rossnelson deleted the com-191 branch July 7, 2026 18:01

temporal-cicd Bot mentioned this pull request Jul 8, 2026

chore: bump version to 2.52.0 #3647

Merged

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

COM-191 - prefill CloudFormation template params in Launch Stack link#3619

COM-191 - prefill CloudFormation template params in Launch Stack link#3619
rossnelson merged 2 commits into
mainfrom
com-191

rossnelson commented Jun 30, 2026

Uh oh!

vercel Bot commented Jun 30, 2026 •

edited

Loading

Uh oh!

Uh oh!

Uh oh!

laurakwhit Jul 7, 2026

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

3 participants

Uh oh!

Conversation

rossnelson commented Jun 30, 2026

Summary

Changes

Decisions worth a look

Notes for the integrator (out of scope here)

Test plan

Uh oh!

vercel Bot commented Jun 30, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

Uh oh!

Uh oh!

laurakwhit Jul 7, 2026

Choose a reason for hiding this comment

Uh oh!

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

3 participants

vercel Bot commented Jun 30, 2026 •

edited

Loading