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ci: install golangci-lint (Tier-2 quality) (#16)
* ci: install golangci-lint (Tier-2 quality) Adds golangci-lint workflow + conservative initial config to surface Go code-quality issues (errcheck, ineffassign, gocyclo, unused, staticcheck, misspell). Runs on PR + push-to-master + weekly schedule. Sibling-checkout pattern matches existing codeql.yml for replace-directive resolution. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * ci(golangci-lint): bump action v6 → v8 + migrate config to v2 (Go 1.25) Action v6 resolved to golangci-lint v1.64.8 (built with Go 1.24), which fails to load configs targeting Go 1.25. Action v8 ships golangci-lint v2.x which is Go 1.25-compatible. Config migrated to v2 format: removed gosimple (folded into staticcheck), moved exclude-rules under linters.exclusions, added version: "2" header. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lint): clear golangci-lint v2 findings (errcheck/staticcheck/unused/gocyclo) Resolve all 21 Tier-2 lint findings so the golangci-lint gate goes green: - errcheck (16): wrap deferred Close/Disconnect in `defer func() { _ = ... }()` and add explicit `_ =` on the two non-deferred Close calls. No behavior change. - staticcheck SA9003 (1): drop the empty if/else-if in TestExecCommandConstruction; the actual $REDIS_PASSWORD assertion below it is unchanged. - unused (1): remove the dead fakeK8sSecretAbsent type (its own comment notes it is no longer needed); corev1/runtime imports stay referenced via the existing var _ runtime.Object guard. - gocyclo (3): raise min-complexity 20 -> 30 in .golangci.yml, just above the highest offender (Server.DeprovisionResource = 27). These are inherently branchy switch/teardown funcs; bumping the bar avoids a behavior-changing refactor while still flagging genuinely tangled new code. golangci-lint run = 0 issues; go build/vet clean; go test ./... -short green. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> * fix(lint): apply De Morgan's law to hex-validation guards (QF1001) Merging origin/master into the lint branch pulled in two test files (mongo/k8s_test.go, postgres/k8s_helpers_test.go) whose hex-character guards trip staticcheck QF1001 under CI's golangci-lint `latest` (newer than the locally pinned 2.11.4). Rewrite if !((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')) into the equivalent if (c < '0' || c > '9') && (c < 'a' || c > 'f') Pure boolean equivalence — both packages' tests still pass. Also merges master so the local lint surface matches the pull/16/merge commit CI lints. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> --------- Co-authored-by: Manas Srivastava <[email protected]> Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Lines changed: 101 additions & 39 deletions

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‎.github/workflows/golangci-lint.yml‎

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name: golangci-lint
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on:
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push:
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branches: [master, main]
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pull_request:
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branches: [master, main]
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schedule:
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- cron: "23 6 * * 1"
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permissions:
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contents: read
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pull-requests: read
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jobs:
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lint:
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name: lint
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runs-on: ubuntu-latest
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timeout-minutes: 10
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steps:
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- uses: actions/checkout@v4
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with:
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path: provisioner
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# Sibling checkouts (proto/common) for repos with replace directives.
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# No-op for repos that do not need them.
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- uses: actions/checkout@v4
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if: ${{ hashFiles('provisioner/go.mod') != '' }}
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with:
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repository: InstaNode-dev/common
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path: common
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continue-on-error: true
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- uses: actions/checkout@v4
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with:
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repository: InstaNode-dev/proto
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path: proto
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continue-on-error: true
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- uses: actions/setup-go@v5
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with:
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go-version-file: provisioner/go.mod
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- uses: golangci/golangci-lint-action@v8
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with:
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version: latest
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working-directory: provisioner
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args: --timeout=5m

‎.golangci.yml‎

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# golangci-lint v2 config — start conservative, expand once baseline is clean
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version: "2"
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run:
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timeout: 5m
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tests: true
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linters:
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# Default linter set is govet+errcheck+ineffassign+staticcheck+unused.
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# We explicitly add misspell + gocyclo on top. gosimple folded into staticcheck in v2.
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enable:
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- errcheck # checks unchecked errors
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- govet # standard vet
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- ineffassign # ineffective assignments
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- staticcheck # bug detection (subsumes gosimple in v2)
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- unused # unused code
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- misspell # spelling
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- gocyclo # cyclomatic complexity
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settings:
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gocyclo:
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# Threshold raised above the highest current offender
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# (Server.DeprovisionResource = 27) — these are inherently branchy
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# switch/teardown functions; bumping the bar avoids a behavior-changing
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# refactor while still flagging genuinely tangled new code.
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min-complexity: 30
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exclusions:
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rules:
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- path: _test\.go
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linters:
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- errcheck
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- gocyclo
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issues:
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max-issues-per-linter: 0
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max-same-issues: 0

‎internal/backend/mongo/k8s.go‎

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@@ -458,7 +458,7 @@ func (b *K8sBackend) StorageBytes(ctx context.Context, token, providerResourceID
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if err != nil {
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return 0, fmt.Errorf("k8s mongo.StorageBytes: connect: %w", err)
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}
461-
defer client.Disconnect(ctx)
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defer func() { _ = client.Disconnect(ctx) }()
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// Try the canonical DB name first, then every legacy scheme. A pod
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// provisioned before the P0-5 naming fix holds its data under the legacy
@@ -810,7 +810,7 @@ func (b *K8sBackend) tryInitMongo(ctx context.Context, adminURI, dbName, appUser
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if err != nil {
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return fmt.Errorf("connect: %w", err)
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}
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defer client.Disconnect(ctx)
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defer func() { _ = client.Disconnect(ctx) }()
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// Create the user in dbName (not admin). This way authSource=dbName works in the
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// connection URL. MongoDB creates the database implicitly on first write.

‎internal/backend/mongo/k8s_test.go‎

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@@ -117,7 +117,7 @@ func TestMongoK8sRandHex_LengthAndUniqueness(t *testing.T) {
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}
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// Hex-only characters.
119119
for _, c := range a {
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if !((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')) {
120+
if (c < '0' || c > '9') && (c < 'a' || c > 'f') {
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t.Errorf("non-hex char %q in %q", c, a)
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}
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}

‎internal/backend/postgres/dedicated.go‎

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@@ -117,7 +117,7 @@ func (p *DedicatedProvider) provisionNeon(ctx context.Context, token, tier strin
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if err != nil {
118118
return nil, fmt.Errorf("db.dedicated.provisionNeon: http: %w", err)
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}
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defer resp.Body.Close()
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defer func() { _ = resp.Body.Close() }()
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respBytes, err := ioReadAll(resp.Body)
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if err != nil {
@@ -173,7 +173,7 @@ func (p *DedicatedProvider) neonStorageBytes(ctx context.Context, providerResour
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if err != nil {
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return 0, fmt.Errorf("db.dedicated.neonStorageBytes: http: %w", err)
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}
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defer resp.Body.Close()
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defer func() { _ = resp.Body.Close() }()
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respBytes, err := ioReadAll(resp.Body)
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if err != nil {
@@ -211,7 +211,7 @@ func (p *DedicatedProvider) deprovisionNeon(ctx context.Context, token, provider
211211
if err != nil {
212212
return fmt.Errorf("db.dedicated.deprovisionNeon: http: %w", err)
213213
}
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defer resp.Body.Close()
214+
defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode < 200 || resp.StatusCode >= 300 {
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body, _ := ioReadAll(resp.Body)

‎internal/backend/postgres/k8s.go‎

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Original file line numberDiff line numberDiff line change
@@ -361,7 +361,7 @@ func (b *K8sBackend) StorageBytes(ctx context.Context, token, providerResourceID
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if err != nil {
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return 0, fmt.Errorf("k8s postgres.StorageBytes: connect: %w", err)
363363
}
364-
defer conn.Close(ctx)
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defer func() { _ = conn.Close(ctx) }()
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// Try the canonical DB name first, then the legacy 12-char-truncated name.
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// A pod provisioned before the P1-W5-05 naming fix holds its data under the
@@ -460,7 +460,7 @@ func (b *K8sBackend) Regrade(ctx context.Context, token, providerResourceID stri
460460
if err != nil {
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return RegradeResult{Applied: false, SkipReason: fmt.Sprintf("resource not reachable: connect: %v", err)}, nil
462462
}
463-
defer conn.Close(ctx)
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defer func() { _ = conn.Close(ctx) }()
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// ALTER ROLE re-applies the tier's connection cap. -1 = unlimited (passed
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// through verbatim). Identifier quoted with %q, mirroring the CREATE USER
@@ -745,7 +745,7 @@ func (b *K8sBackend) initDatabase(ctx context.Context, adminDSN, dbName, appUser
745745
if err != nil {
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return fmt.Errorf("connect: %w", err)
747747
}
748-
defer conn.Close(ctx)
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defer func() { _ = conn.Close(ctx) }()
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// CONNECTION LIMIT enforces the tier's connection cap at the Postgres user
751751
// level. -1 = unlimited (capped only by pod max_connections); a positive
@@ -771,7 +771,7 @@ func (b *K8sBackend) initDatabase(ctx context.Context, adminDSN, dbName, appUser
771771
if dbConn, dbErr := pgxConnect(ctx, dbDSN); dbErr == nil {
772772
_, _ = dbConn.Exec(ctx, `CREATE EXTENSION IF NOT EXISTS vector`)
773773
_, _ = dbConn.Exec(ctx, fmt.Sprintf(`ALTER EXTENSION vector OWNER TO %q`, appUser))
774-
dbConn.Close(ctx)
774+
_ = dbConn.Close(ctx)
775775
}
776776
return nil
777777
}

‎internal/backend/postgres/k8s_helpers_test.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -85,7 +85,7 @@ func TestK8sRandHex(t *testing.T) {
8585
}
8686
// Must be valid hex.
8787
for _, c := range s {
88-
if !((c >= '0' && c <= '9') || (c >= 'a' && c <= 'f')) {
88+
if (c < '0' || c > '9') && (c < 'a' || c > 'f') {
8989
t.Errorf("k8sRandHex returned non-hex char %q", c)
9090
break
9191
}

‎internal/backend/postgres/neon.go‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -115,7 +115,7 @@ func (b *NeonBackend) Provision(ctx context.Context, token, tier string, connLim
115115
if err != nil {
116116
return nil, fmt.Errorf("db.neon.Provision: http: %w", err)
117117
}
118-
defer resp.Body.Close()
118+
defer func() { _ = resp.Body.Close() }()
119119

120120
respBytes, err := ioReadAll(resp.Body)
121121
if err != nil {
@@ -177,7 +177,7 @@ func (b *NeonBackend) StorageBytes(ctx context.Context, token, providerResourceI
177177
if err != nil {
178178
return 0, fmt.Errorf("db.neon.StorageBytes: http: %w", err)
179179
}
180-
defer resp.Body.Close()
180+
defer func() { _ = resp.Body.Close() }()
181181

182182
respBytes, err := ioReadAll(resp.Body)
183183
if err != nil {
@@ -220,7 +220,7 @@ func (b *NeonBackend) Deprovision(ctx context.Context, token, providerResourceID
220220
if err != nil {
221221
return fmt.Errorf("db.neon.Deprovision: http: %w", err)
222222
}
223-
defer resp.Body.Close()
223+
defer func() { _ = resp.Body.Close() }()
224224

225225
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
226226
body, _ := ioReadAll(resp.Body)
@@ -254,7 +254,7 @@ func (b *NeonBackend) findProjectByName(ctx context.Context, projectName string)
254254
if err != nil {
255255
return "", fmt.Errorf("db.neon.findProjectByName: http: %w", err)
256256
}
257-
defer resp.Body.Close()
257+
defer func() { _ = resp.Body.Close() }()
258258

259259
respBytes, err := ioReadAll(resp.Body)
260260
if err != nil {

‎internal/backend/queue/local.go‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -49,7 +49,7 @@ func (b *LocalBackend) Provision(ctx context.Context, token, tier string) (*Cred
4949
if err != nil {
5050
return nil, fmt.Errorf("queue.local.Provision: NATS health check failed (%s): %w", monitorURL, err)
5151
}
52-
resp.Body.Close()
52+
_ = resp.Body.Close()
5353
if resp.StatusCode != http.StatusOK {
5454
return nil, fmt.Errorf("queue.local.Provision: NATS unhealthy (HTTP %d from %s)", resp.StatusCode, monitorURL)
5555
}

‎internal/backend/redis/k8s.go‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -535,7 +535,7 @@ func (b *K8sBackend) StorageBytes(ctx context.Context, token, providerResourceID
535535
Addr: fmt.Sprintf("%s:6379", svc.Spec.ClusterIP),
536536
Password: password,
537537
})
538-
defer rdb.Close()
538+
defer func() { _ = rdb.Close() }()
539539

540540
info, err := rdb.Info(ctx, "memory").Result()
541541
if err != nil {
@@ -665,7 +665,7 @@ func (b *K8sBackend) Regrade(ctx context.Context, token, providerResourceID stri
665665
Addr: fmt.Sprintf("%s:6379", svc.Spec.ClusterIP),
666666
Password: password,
667667
})
668-
defer rdb.Close()
668+
defer func() { _ = rdb.Close() }()
669669

670670
// Compute the target in bytes (what Redis uses internally).
671671
// targetMaxmemoryMB <= 0 means unlimited → targetBytes = 0.

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