update go1.21 (#18184)

(manual cherry-pick of d9341f0)

* build: update to go1.21

* go: eliminate helpers in favor of min/max

* build: run go mod tidy

* build: swap depguard for semgrep

* command: fixup broken tls error check on go1.21

.go-version

@@ -1 +1 @@
-1.20.6
+1.21.0

.golangci.yml

@@ -56,13 +56,6 @@ linters-settings:
   gofmt:
     # simplify code: gofmt with `-s` option, true by default
     simplify: true
-  depguard:
-    # disallow packages from being used
-    list-type: blacklist
-    packages:
-      - github.com/boltdb/bolt
-      - github.com/hashicorp/consul/command/flags
-      - github.com/pkg/errors
   gocritic:
     disabled-checks:
       - commentFormatting
@@ -89,7 +82,6 @@ linters:
     - unconvert
     - gofmt
     - gosimple
-    - depguard
     - staticcheck
     - asasalint
     - asciicheck

.semgrep/imports.yml

@@ -0,0 +1,18 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
+rules:
+  - id: "disallow-imports"
+    patterns:
+      - pattern: '"github.com/boltdb/bolt"'
+      - pattern: '"github.com/pkg/errors"'
+      - pattern: '"github.com/hashicorp/consul"'
+      - pattern: '"github.com/hashicorp/consul/command/flags"'
+      - pattern: '"github.com/hashicorp/consul/sdk"'
+    message: "Import of this package has been disallowed"
+    languages:
+      - "generic"
+    severity: "ERROR"
+    paths:
+      include:
+        - "*.go"

GNUmakefile

@@ -131,7 +131,7 @@ deps:  ## Install build and development dependencies
 lint-deps: ## Install linter dependencies
 ## Keep versions in sync with tools/go.mod (see https://github.com/golang/go/issues/30515)
 	@echo "==> Updating linter dependencies..."
-	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.51.1
+	go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.54.0
 	go install github.com/client9/misspell/cmd/misspell@v0.3.4
 	go install github.com/hashicorp/go-hclog/hclogvet@v0.1.6
 

client/allocrunner/taskrunner/driver_handle.go

@@ -6,7 +6,6 @@ import (
 	"time"
 
 	cstructs "github.com/hashicorp/nomad/client/structs"
-	"github.com/hashicorp/nomad/helper"
 	"github.com/hashicorp/nomad/nomad/structs"
 	"github.com/hashicorp/nomad/plugins/drivers"
 )
@@ -23,7 +22,7 @@ func NewDriverHandle(
 		net:         net,
 		taskID:      taskID,
 		killSignal:  task.KillSignal,
-		killTimeout: helper.Min(task.KillTimeout, maxKillTimeout),
+		killTimeout: min(task.KillTimeout, maxKillTimeout),
 	}
 }
 

client/client.go

@@ -2823,7 +2823,7 @@ func (c *Client) consulDiscoveryImpl() error {
 		// datacenterQueryLimit, the next heartbeat will pick
 		// a new set of servers so it's okay.
 		shuffleStrings(dcs[1:])
-		dcs = dcs[0:helper.Min(len(dcs), datacenterQueryLimit)]
+		dcs = dcs[0:min(len(dcs), datacenterQueryLimit)]
 	}
 
 	serviceName := c.GetConfig().ConsulConfig.ServerServiceName

command/agent/http_test.go

@@ -13,6 +13,7 @@ import (
 	"net/http/httptest"
 	"net/url"
 	"os"
+	"slices"
 	"strconv"
 	"strings"
 	"testing"
@@ -822,8 +823,10 @@ func TestHTTP_VerifyHTTPSClient(t *testing.T) {
 	if !ok {
 		t.Fatalf("expected a *net.OpErr but received: %T -> %v", urlErr.Err, urlErr.Err)
 	}
-	const badCertificate = "tls: bad certificate" // from crypto/tls/alert.go:52 and RFC 5246 § A.3
-	if opErr.Err.Error() != badCertificate {
+
+	// from crypto/tls/alert.go:52 and RFC 5246 § A.3
+	possibleBadCertErr := []string{"tls: bad certificate", "tls: certificate required"}
+	if !slices.Contains(possibleBadCertErr, opErr.Err.Error()) {
 		t.Fatalf("expected tls.alert bad_certificate but received: %q", opErr.Err.Error())
 	}
 

contributing/README.md

@@ -30,7 +30,7 @@ A development environment is supplied via Vagrant to make getting started easier
 
 Developing without Vagrant
 ---
-1. Install [Go 1.20.6+](https://golang.org/) *(Note: `gcc-go` is not supported)*
+1. Install [Go 1.21.0+](https://golang.org/) *(Note: `gcc-go` is not supported)*
 1. Clone this repo
    ```sh
    $ git clone https://github.com/hashicorp/nomad.git

go.mod

@@ -1,6 +1,6 @@
 module github.com/hashicorp/nomad
 
-go 1.20
+go 1.21
 
 // Pinned dependencies are noted in github.com/hashicorp/nomad/issues/11826
 replace (

go.sum

@@ -116,6 +116,7 @@ cloud.google.com/go/language v1.6.0/go.mod h1:6dJ8t3B+lUYfStgls25GusK04NLh3eDLQn
 cloud.google.com/go/lifesciences v0.5.0/go.mod h1:3oIKy8ycWGPUyZDR/8RNnTOYevhaMLqh5vLUXs9zvT8=
 cloud.google.com/go/lifesciences v0.6.0/go.mod h1:ddj6tSX/7BOnhxCSd3ZcETvtNr8NZ6t/iPhY2Tyfu08=
 cloud.google.com/go/longrunning v0.3.0 h1:NjljC+FYPV3uh5/OwWT6pVU+doBqMg2x/rZlE+CamDs=
+cloud.google.com/go/longrunning v0.3.0/go.mod h1:qth9Y41RRSUE69rDcOn6DdK3HfQfsUI0YSmW3iIlLJc=
 cloud.google.com/go/mediatranslation v0.5.0/go.mod h1:jGPUhGTybqsPQn91pNXw0xVHfuJ3leR1wj37oU3y1f4=
 cloud.google.com/go/mediatranslation v0.6.0/go.mod h1:hHdBCTYNigsBxshbznuIMFNe5QXEowAuNmmC7h8pu5w=
 cloud.google.com/go/memcache v1.4.0/go.mod h1:rTOfiGZtJX1AaFUrOgsMHX5kAzaTQ8azHiuDoTPzNsE=
@@ -247,6 +248,7 @@ github.com/Masterminds/sprig/v3 v3.2.1/go.mod h1:UoaO7Yp8KlPnJIYWTFkMaqPUYKTfGFP
 github.com/Masterminds/sprig/v3 v3.2.3 h1:eL2fZNezLomi0uOLqjQoN6BfsDD+fyLtgbJMAj9n6YA=
 github.com/Masterminds/sprig/v3 v3.2.3/go.mod h1:rXcFaZ2zZbLRJv/xSysmlgIM1u11eBaRMhvYXJNkGuM=
 github.com/Microsoft/hcsshim v0.9.6 h1:VwnDOgLeoi2du6dAznfmspNqTiwczvjv4K7NxuY9jsY=
+github.com/Microsoft/hcsshim v0.9.6/go.mod h1:7pLA8lDk46WKDWlVsENo92gC0XFa8rbKfyFRBqxEbCc=
 github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
@@ -336,6 +338,7 @@ github.com/containerd/console v1.0.3/go.mod h1:7LqA/THxQ86k76b8c/EMSiaJ3h1eZkMkX
 github.com/containerd/containerd v1.6.18 h1:qZbsLvmyu+Vlty0/Ex5xc0z2YtKpIsb5n45mAMI+2Ns=
 github.com/containerd/containerd v1.6.18/go.mod h1:1RdCUu95+gc2v9t3IL+zIlpClSmew7/0YS8O5eQZrOw=
 github.com/containerd/continuity v0.3.0 h1:nisirsYROK15TAMVukJOUyGJjz4BNQJBVsNvAXZJ/eg=
+github.com/containerd/continuity v0.3.0/go.mod h1:wJEAIwKOm/pBZuBd0JmeTvnLquTB1Ag8espWhkykbPM=
 github.com/containerd/go-cni v1.1.7 h1:1yKpVCQAXI21BJIy8q7Nyk4CWpIgUno6ib7JIDca7D4=
 github.com/containerd/go-cni v1.1.7/go.mod h1:Ve4Q0RB2Bw78D90OL0YVyDjqdTL7FKh9W+UPbhWiZXA=
 github.com/containernetworking/cni v1.1.2 h1:wtRGZVv7olUHMOqouPpn3cXJWpJgM6+EUl31EQbXALQ=
@@ -418,6 +421,7 @@ github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoD
 github.com/frankban/quicktest v1.10.0/go.mod h1:ui7WezCLWMWxVWr1GETZY3smRy0G4KWq9vcPtJmFl7Y=
 github.com/frankban/quicktest v1.13.0/go.mod h1:qLE0fzW0VuyUAJgPU19zByoIr0HtCHN/r/VLSOOIySU=
 github.com/frankban/quicktest v1.14.3 h1:FJKSZTDHjyhriyC81FLQ0LY93eSai0ZyR/ZIkd3ZUKE=
+github.com/frankban/quicktest v1.14.3/go.mod h1:mgiwOwqx65TmIk1wJ6Q7wvnVMocbUorkibMOrVTHZps=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
@@ -613,6 +617,7 @@ github.com/hashicorp/go-discover v0.0.0-20220621183603-a413e131e836/go.mod h1:1x
 github.com/hashicorp/go-envparse v0.0.0-20180119215841-310ca1881b22 h1:HTmDIaSN95gbdMyrsbNiXSdW4fbGctGQwEqv0H7OhDQ=
 github.com/hashicorp/go-envparse v0.0.0-20180119215841-310ca1881b22/go.mod h1:/NlxCzN2D4C4L2uDE6ux/h6jM+n98VFQM14nnCIfHJU=
 github.com/hashicorp/go-gatedio v0.5.0 h1:Jm1X5yP4yCqqWj5L1TgW7iZwCVPGtVc+mro5r/XX7Tg=
+github.com/hashicorp/go-gatedio v0.5.0/go.mod h1:Lr3t8L6IyxD3DAeaUxGcgl2JnRUpWMCsmBl4Omu/2t4=
 github.com/hashicorp/go-getter v1.7.0 h1:bzrYP+qu/gMrL1au7/aDvkoOVGUJpeKBgbqRHACAFDY=
 github.com/hashicorp/go-getter v1.7.0/go.mod h1:W7TalhMmbPmsSMdNjD0ZskARur/9GJ17cfHTRtXV744=
 github.com/hashicorp/go-hclog v0.9.1/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
@@ -889,6 +894,7 @@ github.com/onsi/ginkgo v1.11.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+
 github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
 github.com/onsi/ginkgo v1.16.4/go.mod h1:dX+/inL/fNMqNlz0e9LfyB9TswhZpCVdJM/Z6Vvnwo0=
 github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
+github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/ginkgo/v2 v2.1.3 h1:e/3Cwtogj0HA+25nMP1jCMDIf8RtRYbGwGGuBIFztkc=
 github.com/onsi/ginkgo/v2 v2.1.3/go.mod h1:vw5CSIxN1JObi/U8gcbwft7ZxR2dgaR70JSE3/PpL4c=
 github.com/onsi/gomega v0.0.0-20170829124025-dcabb60a477c/go.mod h1:C1qb7wdrVGGVU+Z6iS04AVkA3Q65CEZX59MT0QO5uiA=
@@ -897,6 +903,7 @@ github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7J
 github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
 github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
 github.com/onsi/gomega v1.24.2 h1:J/tulyYK6JwBldPViHJReihxxZ+22FHs0piGjQAvoUE=
+github.com/onsi/gomega v1.24.2/go.mod h1:gs3J10IS7Z7r7eXRoNJIrNqU4ToQukCJhFtKrWgHWnk=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799 h1:rc3tiVYb5z54aKaDfakKn0dDjIyPpTtszkjuMzyt7ec=
@@ -1678,6 +1685,7 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/cheggaaa/pb.v1 v1.0.27/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
@@ -1709,6 +1717,7 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
+gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

helper/cluster_test.go

@@ -18,7 +18,7 @@ func TestCluster_RandomStagger(t *testing.T) {
 	}
 
 	abs := func(d time.Duration) time.Duration {
-		return Max(d, -d)
+		return max(d, -d)
 	}
 
 	for _, tc := range cases {

helper/funcs.go

@@ -15,7 +15,6 @@ import (
 	multierror "github.com/hashicorp/go-multierror"
 	"github.com/hashicorp/go-set"
 	"github.com/hashicorp/hcl/hcl/ast"
-	"golang.org/x/exp/constraints"
 	"golang.org/x/exp/maps"
 	"golang.org/x/exp/slices"
 )
@@ -79,22 +78,6 @@ func HashUUID(input string) (output string, hashed bool) {
 	return output, true
 }
 
-// Min returns the minimum of a and b.
-func Min[T constraints.Ordered](a, b T) T {
-	if a < b {
-		return a
-	}
-	return b
-}
-
-// Max returns the maximum of a and b.
-func Max[T constraints.Ordered](a, b T) T {
-	if a > b {
-		return a
-	}
-	return b
-}
-
 // UniqueMapSliceValues returns the union of values from each slice in a map[K][]V.
 func UniqueMapSliceValues[K, V comparable](m map[K][]V) []V {
 	s := set.New[V](0)

helper/funcs_test.go

@@ -12,52 +12,6 @@ import (
 	"golang.org/x/exp/maps"
 )
 
-func Test_Min(t *testing.T) {
-	t.Run("int", func(t *testing.T) {
-		a := 1
-		b := 2
-		must.Eq(t, 1, Min(a, b))
-		must.Eq(t, 1, Min(b, a))
-	})
-
-	t.Run("float64", func(t *testing.T) {
-		a := 1.1
-		b := 2.2
-		must.Eq(t, 1.1, Min(a, b))
-		must.Eq(t, 1.1, Min(b, a))
-	})
-
-	t.Run("string", func(t *testing.T) {
-		a := "cat"
-		b := "dog"
-		must.Eq(t, "cat", Min(a, b))
-		must.Eq(t, "cat", Min(b, a))
-	})
-}
-
-func Test_Max(t *testing.T) {
-	t.Run("int", func(t *testing.T) {
-		a := 1
-		b := 2
-		must.Eq(t, 2, Max(a, b))
-		must.Eq(t, 2, Max(b, a))
-	})
-
-	t.Run("float64", func(t *testing.T) {
-		a := 1.1
-		b := 2.2
-		must.Eq(t, 2.2, Max(a, b))
-		must.Eq(t, 2.2, Max(b, a))
-	})
-
-	t.Run("string", func(t *testing.T) {
-		a := "cat"
-		b := "dog"
-		must.Eq(t, "dog", Max(a, b))
-		must.Eq(t, "dog", Max(b, a))
-	})
-}
-
 func TestIsSubset(t *testing.T) {
 	l := []string{"a", "b", "c"}
 	s := []string{"d"}

nomad/blocked_evals.go

@@ -290,7 +290,7 @@ func latestEvalIndex(eval *structs.Evaluation) uint64 {
 		return 0
 	}
 
-	return helper.Max(eval.CreateIndex, eval.SnapshotIndex)
+	return max(eval.CreateIndex, eval.SnapshotIndex)
 }
 
 // missedUnblock returns whether an evaluation missed an unblock while it was in
@@ -542,9 +542,9 @@ func (b *BlockedEvals) unblock(computedClass, quota string, index uint64) {
 
 	// Every eval that has escaped computed node class has to be unblocked
 	// because any node could potentially be feasible.
-	numEscaped := len(b.escaped)
 	numQuotaLimit := 0
-	unblocked := make(map[*structs.Evaluation]string, helper.Max(numEscaped, 4))
+	numEscaped := len(b.escaped)
+	unblocked := make(map[*structs.Evaluation]string, max(uint64(numEscaped), 4))
 
 	if numEscaped != 0 && computedClass != "" {
 		for id, wrapped := range b.escaped {

nomad/drainer/watch_jobs.go

@@ -411,7 +411,7 @@ func handleTaskGroup(snap *state.StateSnapshot, batch bool, tg *structs.TaskGrou
 	// Determine how many we can drain
 	thresholdCount := tg.Count - tg.Migrate.MaxParallel
 	numToDrain := healthy - thresholdCount
-	numToDrain = helper.Min(len(drainable), numToDrain)
+	numToDrain = min(len(drainable), numToDrain)
 	if numToDrain <= 0 {
 		return nil
 	}

nomad/job_endpoint.go

@@ -1412,7 +1412,7 @@ func (j *Job) List(args *structs.JobListRequest, reply *structs.JobListResponse)
 			if err != nil {
 				return err
 			}
-			reply.Index = helper.Max(jindex, sindex)
+			reply.Index = max(jindex, sindex)
 
 			// Set the query response
 			j.srv.setQueryMeta(&reply.QueryMeta)

nomad/scaling_endpoint.go

@@ -4,12 +4,10 @@ import (
 	"strings"
 	"time"
 
-	metrics "github.com/armon/go-metrics"
+	"github.com/armon/go-metrics"
 	log "github.com/hashicorp/go-hclog"
-	memdb "github.com/hashicorp/go-memdb"
-
+	"github.com/hashicorp/go-memdb"
 	"github.com/hashicorp/nomad/acl"
-	"github.com/hashicorp/nomad/helper"
 	"github.com/hashicorp/nomad/nomad/state"
 	"github.com/hashicorp/nomad/nomad/structs"
 )
@@ -130,7 +128,7 @@ func (p *Scaling) GetPolicy(args *structs.ScalingPolicySpecificRequest,
 				if err != nil {
 					return err
 				}
-				reply.Index = helper.Max(1, index)
+				reply.Index = max(1, index)
 			}
 			return nil
 		}}
@@ -194,7 +192,7 @@ func (p *Scaling) listAllNamespaces(args *structs.ScalingPolicyListRequest, repl
 			if err != nil {
 				return err
 			}
-			reply.Index = helper.Max(1, index)
+			reply.Index = max(1, index)
 
 			// Set the query response
 			p.srv.setQueryMeta(&reply.QueryMeta)

nomad/server.go

@@ -974,7 +974,7 @@ func (s *Server) setupBootstrapHandler() error {
 			// walk all datacenter until it finds enough hosts to
 			// form a quorum.
 			shuffleStrings(dcs[1:])
-			dcs = dcs[0:helper.Min(len(dcs), datacenterQueryLimit)]
+			dcs = dcs[0:min(len(dcs), datacenterQueryLimit)]
 		}
 
 		nomadServerServiceName := s.config.ConsulConfig.ServerServiceName
@@ -2025,7 +2025,7 @@ func (s *Server) setReplyQueryMeta(stateStore *state.StateStore, table string, r
 	if err != nil {
 		return err
 	}
-	reply.Index = helper.Max(1, index)
+	reply.Index = max(1, index)
 
 	// Set the query response.
 	s.setQueryMeta(reply)

nomad/state/state_store_variables.go

@@ -5,8 +5,6 @@ import (
 	"math"
 
 	"github.com/hashicorp/go-memdb"
-
-	"github.com/hashicorp/nomad/helper"
 	"github.com/hashicorp/nomad/nomad/structs"
 )
 
@@ -248,7 +246,7 @@ func (s *StateStore) varSetTxn(tx WriteTxn, idx uint64, req *structs.VarApplySta
 	if quotaChange > 0 {
 		quotaUsed.Size += quotaChange
 	} else if quotaChange < 0 {
-		quotaUsed.Size -= helper.Min(quotaUsed.Size, -quotaChange)
+		quotaUsed.Size -= min(quotaUsed.Size, -quotaChange)
 	}
 
 	err = s.enforceVariablesQuota(idx, tx, sv.Namespace, quotaChange)
@@ -389,7 +387,7 @@ func (s *StateStore) svDeleteTxn(tx WriteTxn, idx uint64, req *structs.VarApplyS
 	if existingQuota != nil {
 		quotaUsed := existingQuota.(*structs.VariablesQuota)
 		quotaUsed = quotaUsed.Copy()
-		quotaUsed.Size -= helper.Min(quotaUsed.Size, int64(len(sv.Data)))
+		quotaUsed.Size -= min(quotaUsed.Size, int64(len(sv.Data)))
 		quotaUsed.ModifyIndex = idx
 		if err := tx.Insert(TableVariablesQuotas, quotaUsed); err != nil {
 			return req.ErrorResponse(idx, fmt.Errorf("variable quota insert failed: %v", err))