Merge branch v3.0 into master

.github/workflows/validate.yaml

@@ -7,7 +7,7 @@ on:
 
 env:
   GO_VERSION: '1.20'
-  GOLANGCI_LINT_VERSION: v1.52.2
+  GOLANGCI_LINT_VERSION: v1.53.1
   MISSSPELL_VERSION: v0.4.0
   IN_DOCKER: ""
 

.golangci.yml

@@ -26,10 +26,13 @@ linters-settings:
       - ^spew\.Print(f|ln)?$
       - ^spew\.Dump$
   depguard:
-    list-type: denylist
+    rules:
-    include-go-root: false
+      main:
-    packages:
+        deny:
-      - github.com/pkg/errors
+          - pkg: "github.com/instana/testify"
+            desc: not allowed
+          - pkg: "github.com/pkg/errors"
+            desc: Should be replaced by standard lib errors package
   godox:
     keywords:
       - FIXME
@@ -199,6 +202,7 @@ linters:
     - containedctx # too many false-positive
     - maintidx # kind of duplicate of gocyclo
     - nonamedreturns # Too strict
+    - gosmopolitan  # not relevant
 
 issues:
   exclude-use-default: false

cmd/traefik/plugins.go

@@ -35,12 +35,12 @@ func initPlugins(staticCfg *static.Configuration) (*plugins.Client, map[string]p
 		var err error
 		client, err = plugins.NewClient(opts)
 		if err != nil {
-			return nil, nil, nil, err
+			return nil, nil, nil, fmt.Errorf("unable to create plugins client: %w", err)
 		}
 
 		err = plugins.SetupRemotePlugins(client, staticCfg.Experimental.Plugins)
 		if err != nil {
-			return nil, nil, nil, err
+			return nil, nil, nil, fmt.Errorf("unable to set up plugins environment: %w", err)
 		}
 
 		plgs = staticCfg.Experimental.Plugins

docs/content/https/acme.md

@@ -329,6 +329,7 @@ For complete details, refer to your provider's _Additional configuration_ link.
 | [CloudXNS](https://www.cloudxns.net)                                   | `cloudxns`         | `CLOUDXNS_API_KEY`, `CLOUDXNS_SECRET_KEY`                                                                                                   | [Additional configuration](https://go-acme.github.io/lego/dns/cloudxns)         |
 | [ConoHa](https://www.conoha.jp)                                        | `conoha`           | `CONOHA_TENANT_ID`, `CONOHA_API_USERNAME`, `CONOHA_API_PASSWORD`                                                                            | [Additional configuration](https://go-acme.github.io/lego/dns/conoha)           |
 | [Constellix](https://constellix.com)                                   | `constellix`       | `CONSTELLIX_API_KEY`, `CONSTELLIX_SECRET_KEY`                                                                                               | [Additional configuration](https://go-acme.github.io/lego/dns/constellix)       |
+| [Derak Cloud](https://derak.cloud/)                                    | `derak`            | `DERAK_API_KEY`                                                                                                                             | [Additional configuration](https://go-acme.github.io/lego/dns/derak)            |
 | [deSEC](https://desec.io)                                              | `desec`            | `DESEC_TOKEN`                                                                                                                               | [Additional configuration](https://go-acme.github.io/lego/dns/desec)            |
 | [DigitalOcean](https://www.digitalocean.com)                           | `digitalocean`     | `DO_AUTH_TOKEN`                                                                                                                             | [Additional configuration](https://go-acme.github.io/lego/dns/digitalocean)     |
 | [DNS Made Easy](https://dnsmadeeasy.com)                               | `dnsmadeeasy`      | `DNSMADEEASY_API_KEY`, `DNSMADEEASY_API_SECRET`, `DNSMADEEASY_SANDBOX`                                                                      | [Additional configuration](https://go-acme.github.io/lego/dns/dnsmadeeasy)      |

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/docker/docker v20.10.21+incompatible
 	github.com/docker/go-connections v0.4.0
 	github.com/fatih/structs v1.1.0
-	github.com/go-acme/lego/v4 v4.11.0
+	github.com/go-acme/lego/v4 v4.12.0
 	github.com/go-check/check v0.0.0-00010101000000-000000000000
 	github.com/go-kit/kit v0.10.1-0.20200915143503-439c4d2ed3ea
 	github.com/golang/protobuf v1.5.2
@@ -88,11 +88,11 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v0.34.0
 	go.opentelemetry.io/otel/trace v1.11.2
 	golang.org/x/exp v0.0.0-20221205204356-47842c84f3db
-	golang.org/x/mod v0.6.0
+	golang.org/x/mod v0.8.0
-	golang.org/x/net v0.7.0
+	golang.org/x/net v0.8.0
-	golang.org/x/text v0.7.0
+	golang.org/x/text v0.8.0
 	golang.org/x/time v0.3.0
-	golang.org/x/tools v0.2.0
+	golang.org/x/tools v0.6.0
 	google.golang.org/grpc v1.53.0
 	gopkg.in/DataDog/dd-trace-go.v1 v1.43.1
 	gopkg.in/fsnotify.v1 v1.4.7
@@ -354,12 +354,12 @@ require (
 	go.uber.org/zap v1.21.0 // indirect
 	go4.org/intern v0.0.0-20211027215823-ae77deb06f29 // indirect
 	go4.org/unsafe/assume-no-moving-gc v0.0.0-20220617031537-928513b29760 // indirect
-	golang.org/x/crypto v0.5.0 // indirect
+	golang.org/x/crypto v0.7.0 // indirect
 	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
-	golang.org/x/oauth2 v0.5.0 // indirect
+	golang.org/x/oauth2 v0.6.0 // indirect
 	golang.org/x/sync v0.1.0 // indirect
-	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/sys v0.6.0 // indirect
-	golang.org/x/term v0.5.0 // indirect
+	golang.org/x/term v0.6.0 // indirect
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
 	google.golang.org/api v0.111.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect

go.sum

@@ -667,8 +667,8 @@ github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwv
 github.com/gin-gonic/gin v1.7.4/go.mod h1:jD2toBW3GZUr5UMcdrwQA10I7RuaFOl/SGeDjXkfUtY=
 github.com/gin-gonic/gin v1.7.7 h1:3DoBmSbJbZAWqXJC3SLjAPfutPJJRN1U5pALB7EeTTs=
 github.com/globalsign/mgo v0.0.0-20181015135952-eeefdecb41b8/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
-github.com/go-acme/lego/v4 v4.11.0 h1:oIPoU7zBJoTfoVrbqk62+/2NsGCSgCVK1JtZSZZ28SU=
+github.com/go-acme/lego/v4 v4.12.0 h1:jox3II6YRjt1EXvrymSQuSNgEUOcbUkF2je0kyuv6YM=
-github.com/go-acme/lego/v4 v4.11.0/go.mod h1:dENL0J3/WughN2NLy0T35otK5k1EWCmXTwCw0+X5ZaE=
+github.com/go-acme/lego/v4 v4.12.0/go.mod h1:UZoOlhVmUYP/N0z4tEbfUjoCNHRZNObzqWZtT76DIsc=
 github.com/go-asn1-ber/asn1-ber v1.3.1/go.mod h1:hEBeB/ic+5LoWskz+yKT7vGhhPYkProFKoKdwZRWMe0=
 github.com/go-chi/chi/v5 v5.0.0/go.mod h1:BBug9lr0cqtdAhsu6R4AAdvufI0/XBzAQSsUqJpoZOs=
 github.com/go-cmd/cmd v1.0.5/go.mod h1:y8q8qlK5wQibcw63djSl/ntiHUHXHGdCkPk0j4QeW4s=
@@ -2052,8 +2052,8 @@ golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5y
 golang.org/x/crypto v0.0.0-20211202192323-5770296d904e/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.3.0/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
-golang.org/x/crypto v0.5.0 h1:U/0M97KRkSFvyD/3FSmdP5W5swImpNgle/EHFhOsQPE=
+golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A=
-golang.org/x/crypto v0.5.0/go.mod h1:NK/OQwhpMQP3MwtdjgLlYHnH9ebylxKWv3e0fK+mkQU=
+golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -2099,8 +2099,8 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/mod v0.6.0 h1:b9gGHsz9/HhJ3HF5DHQytPpuwocVTChQJK3AvoLRD5I=
+golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8=
-golang.org/x/mod v0.6.0/go.mod h1:4mET923SAdbXp2ki8ey+zGs1SLqsuM2Y0uvdZR/fUNI=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20170114055629-f2499483f923/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180811021610-c39426892332/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -2172,8 +2172,8 @@ golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd/go.mod h1:CfG3xpIq0wQ8r1q4Su
 golang.org/x/net v0.0.0-20220225172249-27dd8689420f/go.mod h1:CfG3xpIq0wQ8r1q4Su4UZFWDARRcnwPjda9FqA0JpMk=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
-golang.org/x/net v0.7.0 h1:rJrUqqhjsgNp7KqAIc25s9pZnjU7TUcSY7HcVZjdn1g=
+golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
+golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 golang.org/x/oauth2 v0.0.0-20180724155351-3d292e4d0cdc/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -2190,8 +2190,8 @@ golang.org/x/oauth2 v0.0.0-20210402161424-2e8d93401602/go.mod h1:KelEdhl1UZF7XfJ
 golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20211104180415-d3ed0bb246c8/go.mod h1:KelEdhl1UZF7XfJ4dDtk6s++YSgaE7mD/BuKKDLBl4A=
 golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b/go.mod h1:DAh4E804XQdzx2j+YRIaUnCqCV2RuMz24cGBJ5QYIrc=
-golang.org/x/oauth2 v0.5.0 h1:HuArIo48skDwlrvM3sEdHXElYslAMsf3KwRkkW4MC4s=
+golang.org/x/oauth2 v0.6.0 h1:Lh8GPgSKBfWSwFvtuWOfeI3aAAnbXTSutYxJiOJFgIw=
-golang.org/x/oauth2 v0.5.0/go.mod h1:9/XBHVqLaWO3/BRHs5jbpYCnOZVjj5V0ndyaAM7KB4I=
+golang.org/x/oauth2 v0.6.0/go.mod h1:ycmewcwgD4Rpr3eZJLSB4Kyyljb3qDh40vJ8STE5HKw=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -2339,15 +2339,15 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ=
-golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210220032956-6a3ed077a48d/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
-golang.org/x/term v0.5.0 h1:n2a8QNdAb0sZNpU9R1ALUXBbY+w51fCQDN+7EdxNBsY=
+golang.org/x/term v0.6.0 h1:clScbb1cHjoCkyRbWwBEUZ5H/tIFu5TAXIqaZD0Gcjw=
-golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
+golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
 golang.org/x/text v0.0.0-20160726164857-2910a502d2bf/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -2359,8 +2359,8 @@ golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/text v0.7.0 h1:4BRB4x83lYWy72KwLD/qYDuTu7q9PjSagHvijDw7cLo=
+golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
-golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
+golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -2447,8 +2447,8 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.6.0 h1:BOw41kyTf3PuCW1pVQf8+Cyg8pMlkYB1oo9iJ6D/lKM=
-golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=

integration/healthcheck_test.go

@@ -61,7 +61,7 @@ func (s *HealthCheckSuite) TestSimpleConfiguration(c *check.C) {
 	client := &http.Client{}
 	whoamiHosts := []string{s.whoami1IP, s.whoami2IP}
 	for _, whoami := range whoamiHosts {
-		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
+		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBufferString("500"))
 		c.Assert(err, checker.IsNil)
 		_, err = client.Do(statusInternalServerErrorReq)
 		c.Assert(err, checker.IsNil)
@@ -72,7 +72,7 @@ func (s *HealthCheckSuite) TestSimpleConfiguration(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// Change one whoami health to 200
-	statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("200"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusOKReq1)
 	c.Assert(err, checker.IsNil)
@@ -138,7 +138,7 @@ func (s *HealthCheckSuite) TestMultipleEntrypoints(c *check.C) {
 	client := &http.Client{}
 	whoamiHosts := []string{s.whoami1IP, s.whoami2IP}
 	for _, whoami := range whoamiHosts {
-		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
+		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBufferString("500"))
 		c.Assert(err, checker.IsNil)
 		_, err = client.Do(statusInternalServerErrorReq)
 		c.Assert(err, checker.IsNil)
@@ -149,7 +149,7 @@ func (s *HealthCheckSuite) TestMultipleEntrypoints(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// reactivate the whoami2
-	statusInternalServerOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBuffer([]byte("200")))
+	statusInternalServerOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBufferString("200"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusInternalServerOkReq)
 	c.Assert(err, checker.IsNil)
@@ -174,7 +174,7 @@ func (s *HealthCheckSuite) TestMultipleEntrypoints(c *check.C) {
 func (s *HealthCheckSuite) TestPortOverload(c *check.C) {
 	// Set one whoami health to 200
 	client := &http.Client{}
-	statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("200"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusInternalServerErrorReq)
 	c.Assert(err, checker.IsNil)
@@ -203,7 +203,7 @@ func (s *HealthCheckSuite) TestPortOverload(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// Set one whoami health to 500
-	statusInternalServerErrorReq, err = http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("500")))
+	statusInternalServerErrorReq, err = http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("500"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusInternalServerErrorReq)
 	c.Assert(err, checker.IsNil)
@@ -232,7 +232,7 @@ func (s *HealthCheckSuite) TestMultipleRoutersOnSameService(c *check.C) {
 
 	// Set whoami health to 200 to be sure to start with the wanted status
 	client := &http.Client{}
-	statusOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	statusOkReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("200"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusOkReq)
 	c.Assert(err, checker.IsNil)
@@ -253,7 +253,7 @@ func (s *HealthCheckSuite) TestMultipleRoutersOnSameService(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// Set whoami health to 500
-	statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("500")))
+	statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("500"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusInternalServerErrorReq)
 	c.Assert(err, checker.IsNil)
@@ -266,7 +266,7 @@ func (s *HealthCheckSuite) TestMultipleRoutersOnSameService(c *check.C) {
 	c.Assert(err, checker.IsNil)
 
 	// Change one whoami health to 200
-	statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBuffer([]byte("200")))
+	statusOKReq1, err := http.NewRequest(http.MethodPost, "http://"+s.whoami1IP+"/health", bytes.NewBufferString("200"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusOKReq1)
 	c.Assert(err, checker.IsNil)
@@ -312,7 +312,7 @@ func (s *HealthCheckSuite) TestPropagate(c *check.C) {
 
 	whoamiHosts := []string{s.whoami1IP, s.whoami3IP}
 	for _, whoami := range whoamiHosts {
-		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
+		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBufferString("500"))
 		c.Assert(err, checker.IsNil)
 		_, err = client.Do(statusInternalServerErrorReq)
 		c.Assert(err, checker.IsNil)
@@ -394,7 +394,7 @@ func (s *HealthCheckSuite) TestPropagate(c *check.C) {
 	// Bring whoami2 and whoami4 down
 	whoamiHosts = []string{s.whoami2IP, s.whoami4IP}
 	for _, whoami := range whoamiHosts {
-		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("500")))
+		statusInternalServerErrorReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBufferString("500"))
 		c.Assert(err, checker.IsNil)
 		_, err = client.Do(statusInternalServerErrorReq)
 		c.Assert(err, checker.IsNil)
@@ -420,7 +420,7 @@ func (s *HealthCheckSuite) TestPropagate(c *check.C) {
 	// Bring everything back up.
 	whoamiHosts = []string{s.whoami1IP, s.whoami2IP, s.whoami3IP, s.whoami4IP}
 	for _, whoami := range whoamiHosts {
-		statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBuffer([]byte("200")))
+		statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+whoami+"/health", bytes.NewBufferString("200"))
 		c.Assert(err, checker.IsNil)
 		_, err = client.Do(statusOKReq)
 		c.Assert(err, checker.IsNil)
@@ -585,7 +585,7 @@ func (s *HealthCheckSuite) TestPropagateReload(c *check.C) {
 	client := http.Client{
 		Timeout: 10 * time.Second,
 	}
-	statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBuffer([]byte("500")))
+	statusOKReq, err := http.NewRequest(http.MethodPost, "http://"+s.whoami2IP+"/health", bytes.NewBufferString("500"))
 	c.Assert(err, checker.IsNil)
 	_, err = client.Do(statusOKReq)
 	c.Assert(err, checker.IsNil)

pkg/middlewares/auth/basic_auth_test.go

@@ -218,7 +218,7 @@ func TestBasicAuthUsersFromFile(t *testing.T) {
 			usersFile, err := os.CreateTemp(t.TempDir(), "auth-users")
 			require.NoError(t, err)
 
-			_, err = usersFile.Write([]byte(test.userFileContent))
+			_, err = usersFile.WriteString(test.userFileContent)
 			require.NoError(t, err)
 
 			// Creates the configuration for our Authenticator

pkg/middlewares/auth/digest_auth_test.go

@@ -96,7 +96,7 @@ func TestDigestAuthUsersFromFile(t *testing.T) {
 			usersFile, err := os.CreateTemp(t.TempDir(), "auth-users")
 			require.NoError(t, err)
 
-			_, err = usersFile.Write([]byte(test.userFileContent))
+			_, err = usersFile.WriteString(test.userFileContent)
 			require.NoError(t, err)
 
 			// Creates the configuration for our Authenticator

pkg/middlewares/capture/capture_test.go

@@ -177,7 +177,7 @@ func generateBytes(length int) []byte {
 }
 
 func TestRequestReader(t *testing.T) {
-	buff := bytes.NewBuffer([]byte("foo"))
+	buff := bytes.NewBufferString("foo")
 	rr := readCounter{source: io.NopCloser(buff)}
 	assert.Equal(t, int64(0), rr.size)
 

pkg/middlewares/redirect/redirect_scheme_test.go

@@ -333,7 +333,7 @@ func TestRedirectSchemeHandler(t *testing.T) {
 				schemeRegex := `^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
 				re, _ := regexp.Compile(schemeRegex)
 
-				if re.Match([]byte(test.url)) {
+				if re.MatchString(test.url) {
 					match := re.FindStringSubmatch(test.url)
 					req.RequestURI = match[4]
 

pkg/plugins/client.go

@@ -262,7 +262,7 @@ func (c *Client) unzipArchive(pName, pVersion string) error {
 	for _, f := range archive.File {
 		err = unzipFile(f, dest)
 		if err != nil {
-			return err
+			return fmt.Errorf("unable to unzip %s: %w", f.Name, err)
 		}
 	}
 
@@ -281,12 +281,17 @@ func unzipFile(f *zipa.File, dest string) error {
 	p := filepath.Join(dest, pathParts[1])
 
 	if f.FileInfo().IsDir() {
-		return os.MkdirAll(p, f.Mode())
+		err = os.MkdirAll(p, f.Mode())
+		if err != nil {
+			return fmt.Errorf("unable to create archive directory %s: %w", p, err)
+		}
+
+		return nil
 	}
 
 	err = os.MkdirAll(filepath.Dir(p), 0o750)
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to create archive directory %s for file %s: %w", filepath.Dir(p), p, err)
 	}
 
 	elt, err := os.OpenFile(p, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
@@ -345,7 +350,7 @@ func (c *Client) WriteState(plugins map[string]Descriptor) error {
 
 	mp, err := json.MarshalIndent(m, "", "  ")
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to marshal plugin state: %w", err)
 	}
 
 	return os.WriteFile(c.stateFile, mp, 0o600)
@@ -359,10 +364,15 @@ func (c *Client) ResetAll() error {
 
 	err := resetDirectory(filepath.Join(c.goPath, ".."))
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to reset plugins GoPath directory %s: %w", c.goPath, err)
 	}
 
-	return resetDirectory(c.archives)
+	err = resetDirectory(c.archives)
+	if err != nil {
+		return fmt.Errorf("unable to reset plugins archives directory: %w", err)
+	}
+
+	return nil
 }
 
 func (c *Client) buildArchivePath(pName, pVersion string) string {
@@ -372,12 +382,12 @@ func (c *Client) buildArchivePath(pName, pVersion string) string {
 func resetDirectory(dir string) error {
 	dirPath, err := filepath.Abs(dir)
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to get absolute path of %s: %w", dir, err)
 	}
 
 	currentPath, err := os.Getwd()
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to get the current directory: %w", err)
 	}
 
 	if strings.HasPrefix(currentPath, dirPath) {
@@ -386,10 +396,15 @@ func resetDirectory(dir string) error {
 
 	err = os.RemoveAll(dir)
 	if err != nil {
-		return err
+		return fmt.Errorf("unable to remove directory %s: %w", dirPath, err)
 	}
 
-	return os.MkdirAll(dir, 0o755)
+	err = os.MkdirAll(dir, 0o755)
+	if err != nil {
+		return fmt.Errorf("unable to create directory %s: %w", dirPath, err)
+	}
+
+	return nil
 }
 
 func computeHash(filepath string) (string, error) {

pkg/plugins/plugins.go

@@ -21,7 +21,7 @@ func SetupRemotePlugins(client *Client, plugins map[string]Descriptor) error {
 
 	err = client.CleanArchives(plugins)
 	if err != nil {
-		return fmt.Errorf("failed to clean archives: %w", err)
+		return fmt.Errorf("unable to clean archives: %w", err)
 	}
 
 	ctx := context.Background()
@@ -32,27 +32,27 @@ func SetupRemotePlugins(client *Client, plugins map[string]Descriptor) error {
 		hash, err := client.Download(ctx, desc.ModuleName, desc.Version)
 		if err != nil {
 			_ = client.ResetAll()
-			return fmt.Errorf("failed to download plugin %s: %w", desc.ModuleName, err)
+			return fmt.Errorf("unable to download plugin %s: %w", desc.ModuleName, err)
 		}
 
 		err = client.Check(ctx, desc.ModuleName, desc.Version, hash)
 		if err != nil {
 			_ = client.ResetAll()
-			return fmt.Errorf("failed to check archive integrity of the plugin %s: %w", desc.ModuleName, err)
+			return fmt.Errorf("unable to check archive integrity of the plugin %s: %w", desc.ModuleName, err)
 		}
 	}
 
 	err = client.WriteState(plugins)
 	if err != nil {
 		_ = client.ResetAll()
-		return fmt.Errorf("failed to write plugins state: %w", err)
+		return fmt.Errorf("unable to write plugins state: %w", err)
 	}
 
 	for _, desc := range plugins {
 		err = client.Unzip(desc.ModuleName, desc.Version)
 		if err != nil {
 			_ = client.ResetAll()
-			return fmt.Errorf("failed to unzip archive: %w", err)
+			return fmt.Errorf("unable to unzip archive: %w", err)
 		}
 	}
 

pkg/provider/file/file_test.go

@@ -63,7 +63,7 @@ func TestTLSCertificateContent(t *testing.T) {
       keyFile = "` + fileTLSKey.Name() + `"
 `
 
-	_, err = fileConfig.Write([]byte(content))
+	_, err = fileConfig.WriteString(content)
 	require.NoError(t, err)
 
 	provider := &Provider{}

pkg/provider/kubernetes/crd/fixtures/with_multiple_subsets.yml

@@ -0,0 +1,54 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: whoami-svc-multiple-subsets
+  namespace: default
+
+spec:
+  ports:
+    - name: web
+      port: 80
+    - name: web2
+      port: 8080
+  selector:
+    app: traefiklabs
+    task: whoami
+
+---
+kind: Endpoints
+apiVersion: v1
+metadata:
+  name: whoami-svc-multiple-subsets
+  namespace: default
+
+subsets:
+  - addresses:
+      - ip: 10.10.0.1
+      - ip: 10.10.0.2
+    ports:
+      - name: web
+        port: 80
+  - addresses:
+      - ip: 10.10.0.3
+      - ip: 10.10.0.4
+    ports:
+      - name: web2
+        port: 8080
+---
+apiVersion: traefik.io/v1alpha1
+kind: IngressRoute
+metadata:
+  name: test.route
+  namespace: default
+
+spec:
+  entryPoints:
+    - foo
+
+  routes:
+    - match: Host(`foo.com`) && PathPrefix(`/bar`)
+      kind: Rule
+      priority: 12
+      services:
+        - name: whoami-svc-multiple-subsets
+          port: 8080

pkg/provider/kubernetes/crd/kubernetes_http.go

@@ -420,8 +420,8 @@ func (c configBuilder) loadServers(parentNamespace string, svc traefikv1alpha1.L
 		return nil, fmt.Errorf("subset not found for %s/%s", namespace, sanitizedName)
 	}
 
-	var port int32
 	for _, subset := range endpoints.Subsets {
+		var port int32
 		for _, p := range subset.Ports {
 			if svcPort.Name == p.Name {
 				port = p.Port
@@ -430,7 +430,7 @@ func (c configBuilder) loadServers(parentNamespace string, svc traefikv1alpha1.L
 		}
 
 		if port == 0 {
-			return nil, fmt.Errorf("cannot define a port for %s/%s", namespace, sanitizedName)
+			continue
 		}
 
 		protocol, err := parseServiceProtocol(svc.Scheme, svcPort.Name, svcPort.Port)

pkg/provider/kubernetes/crd/kubernetes_test.go

@@ -4370,6 +4370,54 @@ func TestLoadIngressRoutes(t *testing.T) {
 				TLS: &dynamic.TLSConfiguration{},
 			},
 		},
+		{
+			desc:               "IngressRoute, service with multiple subsets",
+			allowEmptyServices: true,
+			paths:              []string{"services.yml", "with_multiple_subsets.yml"},
+			expected: &dynamic.Configuration{
+				UDP: &dynamic.UDPConfiguration{
+					Routers:  map[string]*dynamic.UDPRouter{},
+					Services: map[string]*dynamic.UDPService{},
+				},
+				TCP: &dynamic.TCPConfiguration{
+					Routers:           map[string]*dynamic.TCPRouter{},
+					Middlewares:       map[string]*dynamic.TCPMiddleware{},
+					Services:          map[string]*dynamic.TCPService{},
+					ServersTransports: map[string]*dynamic.TCPServersTransport{},
+				},
+				HTTP: &dynamic.HTTPConfiguration{
+					Routers: map[string]*dynamic.Router{
+						"default-test-route-6b204d94623b3df4370c": {
+							EntryPoints: []string{"foo"},
+							Service:     "default-test-route-6b204d94623b3df4370c",
+							Rule:        "Host(`foo.com`) && PathPrefix(`/bar`)",
+							Priority:    12,
+						},
+					},
+					Middlewares: map[string]*dynamic.Middleware{},
+					Services: map[string]*dynamic.Service{
+						"default-test-route-6b204d94623b3df4370c": {
+							LoadBalancer: &dynamic.ServersLoadBalancer{
+								Servers: []dynamic.Server{
+									{
+										URL: "http://10.10.0.3:8080",
+									},
+									{
+										URL: "http://10.10.0.4:8080",
+									},
+								},
+								PassHostHeader: Bool(true),
+								ResponseForwarding: &dynamic.ResponseForwarding{
+									FlushInterval: ptypes.Duration(100 * time.Millisecond),
+								},
+							},
+						},
+					},
+					ServersTransports: map[string]*dynamic.ServersTransport{},
+				},
+				TLS: &dynamic.TLSConfiguration{},
+			},
+		},
 		{
 			desc:               "TraefikService, empty service allowed",
 			allowEmptyServices: true,

pkg/server/router/tcp/router_test.go

@@ -842,7 +842,7 @@ func checkTCPTLS(addr string, timeout time.Duration, tlsVersion uint16) (err err
 
 	err = conn.SetReadDeadline(time.Now().Add(timeout))
 	if err != nil {
-		return
+		return err
 	}
 
 	var buf bytes.Buffer

pkg/server/server.go

@@ -73,6 +73,7 @@ func (s *Server) Wait() {
 
 // Stop stops the server.
 func (s *Server) Stop() {
+	//nolint:zerologlint // false-positive https://github.com/ykadowak/zerologlint/issues/3
 	defer log.Info().Msg("Server stopped")
 
 	s.tcpEntryPoints.Stop()