fix(cli): --force reuses one upload URL, so it silently ships a stale image

[defangdevs]

The bug

--force is documented as "force a build of the image even if nothing has changed". After the first use it does the opposite: it pins the deploy to a stale image while reporting success.

UploadModeForce leaves the digest empty as a sentinel, and the provider drivers honour it — but only when the whole blob name is empty:

if blobName == "" { blobName = uuid.NewString() }   // azure/cd/upload.go, aws/codebuild/upload.go

uploadArchive appended the archive extension before that check:

ureq := &defangv1.UploadURLRequest{Digest: digest + archiveType.Extension, ...}

so under force the name was ".tar.gz" — not empty. The UUID branch was unreachable, and every forced upload wrote the same fixed blob uploads/.tar.gz. The build-context URL was then byte-identical between deploys, so the build was skipped as unchanged.

Observed

Deploying docs-chatbot to Azure, from the CD logs:

01:50  uploads/sha256-CJT9OKSEgCsC…tar.gz   (no --force)
02:20  uploads/.tar.gz                      (1st --force) -> URL changed -> image built
02:41  uploads/.tar.gz                      (2nd --force) -> URL identical -> no build

At 02:41 the CD run succeeded and a new Container App revision rolled out — of the old image. The source change was simply absent from the running container, with nothing in the output to say so. Re-running without --force rebuilt immediately, because a real digest changes with content.

So --force works exactly once (the run where the URL shape changes) and never again.

The fix

Generate the unique name in uploadArchive before the extension is appended, keeping the extension so the archive type stays visible. The drivers' own empty-name branch remains as a fallback.

About that // server decides name comment

The Force test case carried // server decides name, which is worth explaining because it is half true. On the Playground, CreateUploadURL is a fabric RPC (playground.go -> GrpcClient), so the server really does choose the name and an empty digest is fine. For BYOC the URL is built locally by the cloud driver, so no server is involved and the empty-digest sentinel has to survive to reach that driver — which the extension concatenation prevented. The comment looks like it was carried over from the Playground path.

Tests

The existing tests asserted the buggy behaviour — including two cases literally named "force upload … without digest" expecting the shared .tar.gz name. They now pin the property that matters:

• TestUploadArchive — two forced uploads must not share a URL, must not be the fixed blob, and must keep their extension (tar and zip)
• Test_getRemoteBuildContext — Force matches a fresh-UUID pattern rather than a literal
• TestForceUploadURLIsUniquePerCall — new, pins uniqueness directly

All three fail against a mutant restoring the old shared name and pass with the fix. go test ./pkg/cli/... is otherwise green; the single byoc/aws failure is environmental and passes with AWS_ACCESS_KEY_ID unset.

Summary by CodeRabbit

• Bug Fixes

  • Forced deployments now create unique archive uploads, preventing repeated deployments from being incorrectly skipped as unchanged.
  • Cloud log streaming now recovers from stalled connections instead of remaining indefinitely blocked.
  • Stream errors, including credential failures and cancellation, are preserved and reported correctly.

• New Features

  • Added idle-timeout handling for log streams across supported cloud providers.
  • Log tailing automatically retries after transient idle timeouts.

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📝 Walkthrough

Walkthrough

The changes add UUID-based names for forced archive uploads. They also add reusable idle-timeout helpers and apply them to AWS and GCP log tailing, with reconnect handling and focused tests.

Changes

Forced upload naming

Layer / File(s)	Summary
Unique forced archive names src/pkg/cli/compose/context.go, src/pkg/cli/compose/context_test.go	Forced uploads generate UUID-based blob names before adding .tar.gz or .zip. Tests verify distinct URLs, archive suffixes, and regex-based expectations.

Idle log stream handling

Layer / File(s)	Summary
Idle-timeout helper contracts src/pkg/idle.go, src/pkg/idle_test.go	RecvWithIdleTimeout and CallWithIdleTimeout return received values, propagated errors, context errors, channel closure, or pkg.ErrIdleTimeout.
Cloud log receive timeouts src/pkg/clouds/aws/cw/logs.go, src/pkg/clouds/gcp/logging.go, src/pkg/clouds/gcp/logging_test.go	AWS and GCP log tailers use idle timeouts. GCP cancels blocked receives. Tests cover stalled streams and cancellation.
Transient timeout retry handling src/pkg/cli/tail.go, src/pkg/cli/tail_test.go	pkg.ErrIdleTimeout is classified as transient so the existing retry path can reconnect.

Estimated code review effort: 3 (Moderate) | ~25 minutes

Merge Risk: ⚪ Minimal · up to eaef5

Forced uploads now use unique archive names and GCP log tailing cancels blocked receives on timeout, cancellation, or closure. No merge-blocking risk remains.

Sequence Diagram(s)

sequenceDiagram
  participant GCPLoggingNext
  participant RecvWithIdleTimeout
  participant GCPLogStream
  participant CLIRetryPath
  GCPLoggingNext->>RecvWithIdleTimeout: request next log response
  RecvWithIdleTimeout->>GCPLogStream: call Recv
  GCPLogStream-->>RecvWithIdleTimeout: response, stream error, or timeout
  RecvWithIdleTimeout-->>GCPLoggingNext: response, error, or ErrIdleTimeout
  GCPLoggingNext->>GCPLogStream: cancel blocked receive
  GCPLoggingNext-->>CLIRetryPath: return timeout error
  CLIRetryPath->>GCPLoggingNext: reconnect through transient retry

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 16.67% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 18 functions across 9 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the primary fix: preventing --force deployments from reusing one upload URL and shipping a stale image.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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Actionable comments posted: 2

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Inline comments:
In `@src/pkg/clouds/gcp/logging_test.go`:
- Line 106: Update tests that create mockTailLogEntriesClient with a blocking
block channel so cleanup closes client.block after each test, including timeout
and cancellation cases using CallWithIdleTimeout, allowing the blocked Recv to
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In `@src/pkg/clouds/gcp/logging.go`:
- Line 68: Update gcpLoggingTailer.Next and its CallWithIdleTimeout timeout path
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📒 Files selected for processing (9)

• src/pkg/cli/compose/context.go
• src/pkg/cli/compose/context_test.go
• src/pkg/cli/tail.go
• src/pkg/cli/tail_test.go
• src/pkg/clouds/aws/cw/logs.go
• src/pkg/clouds/gcp/logging.go
• src/pkg/clouds/gcp/logging_test.go
• src/pkg/idle.go
• src/pkg/idle_test.go

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[defangdevs]

Addressed both CodeRabbit findings:

• gcpLoggingTailer.Next now cancels the stream's own context (not just the caller's per-Next ctx) on any error, so a Recv() left running after an idle timeout or cancellation actually unblocks instead of leaking a goroutine. Same cancel is called from Close().
• Tests close the mock's block channel so they don't leak goroutines of their own.

All four gcpLoggingTailer tests pass under -race.