use system default for temporary directories

Signed-off-by: Steffen Vogel <post@steffenvogel.de>

.github/workflows/release.yaml

@@ -37,7 +37,9 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.18
+        go-version-file: 'go.mod'
+        check-latest: true
+        cache: true
 
     - name: Install build dependencies
       run: |

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.18-alpine AS builder
+FROM golang:1.19-alpine AS builder
 
 WORKDIR /app
 COPY go.mod ./

pkg/config/config_test.go

@@ -90,7 +90,7 @@ var _ = Describe("parse command line arguments", func() {
 			Context("file with explicit path", func() {
 				BeforeEach(func() {
 					var err error
-					cfgFile, err = os.CreateTemp("/tmp", "wice-*.yaml")
+					cfgFile, err = os.CreateTemp("", "wice-*.yaml")
 					Expect(err).To(Succeed())
 				})
 

pkg/signaling/k8s/backend_test.go

@@ -46,7 +46,7 @@ var _ = Describe("Kubernetes backend", Pending, func() {
 		cfg, err := testenv.Start()
 		Expect(err).To(Succeed())
 
-		kcfg, err = os.CreateTemp("/tmp", "kubeconfig-*.yaml")
+		kcfg, err = os.CreateTemp("", "kubeconfig-*.yaml")
 		Expect(err).To(Succeed())
 
 		err = writeKubeconfig(cfg, kcfg)