Hard codes golang version so that there is no conflict between docker…

… golang version and the go.mod version (#4065)

test/upgrade/Dockerfile

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM golang:1.22.9-alpine AS builder
+FROM golang:1.22.6-alpine AS builder
 
 # install curl
 RUN apk update && \
@@ -39,9 +39,8 @@ RUN curl -L  ${HELM_URL} > /tmp/helm.tar.gz \
 # Copy and build the Go application
 WORKDIR /agones.dev
 COPY test/upgrade/main.go ./
-RUN go mod init agones.dev/agones/test/upgrade/testContainer
-RUN go mod tidy
-RUN go mod download
+COPY test/upgrade/go.mod ./
+COPY test/upgrade/go.sum ./
 RUN CGO_ENABLED=0 GOOS=linux go build -o /upgrade-test
 
 # Copy the dev build Agones Helm chart

test/upgrade/go.mod

@@ -0,0 +1,73 @@
+module agones.dev/agones/test/upgrade/testContainer
+
+go 1.22.6
+
+require (
+	agones.dev/agones v1.45.0
+	k8s.io/api v0.31.0
+	k8s.io/apimachinery v0.31.0
+	k8s.io/client-go v0.31.0
+)
+
+require (
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.7.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/spec v0.19.5 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.20.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/imdario/mergo v0.3.6 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/magiconair/properties v1.8.1 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pelletier/go-toml v1.2.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/robfig/cron/v3 v3.0.1 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/spf13/afero v1.9.2 // indirect
+	github.com/spf13/cast v1.3.0 // indirect
+	github.com/spf13/jwalterweatherman v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/viper v1.7.0 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
+	golang.org/x/net v0.28.0 // indirect
+	golang.org/x/oauth2 v0.21.0 // indirect
+	golang.org/x/sys v0.23.0 // indirect
+	golang.org/x/term v0.23.0 // indirect
+	golang.org/x/text v0.17.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.4.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240528184218-531527333157 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240701130421-f6361c86f094 // indirect
+	google.golang.org/grpc v1.65.0 // indirect
+	google.golang.org/protobuf v1.34.2 // indirect
+	gopkg.in/fsnotify.v1 v1.4.7 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/ini.v1 v1.51.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20240903163716-9e1beecbcb38 // indirect
+	k8s.io/utils v0.0.0-20240921022957-49e7df575cb6 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.4.0 // indirect
+)