Use vendored modules in image build

Use vendor folder instead of running go mod download during the build.
Update .dockerignore

Signed-off-by: Han Verstraete (OpenFaaS Ltd) <[email protected]>

Author: welteki

.dockerignore

@@ -1 +1,16 @@
-./inlets-operator
+./inlets-operator
+.tools
+chart
+hack
+docs
+contrib
+LICENSE
+Makefile
+*.md
+
+.git
+.dockerignore
+Dockerfile
+.github
+.gitignore
+.DEREK.yml

Dockerfile

@@ -1,5 +1,5 @@
-FROM --platform=${BUILDPLATFORM:-linux/amd64} ghcr.io/openfaas/license-check:0.4.1 as license-check
-FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.23 as builder
+FROM --platform=${BUILDPLATFORM:-linux/amd64} ghcr.io/openfaas/license-check:0.4.1 AS license-check
+FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.23 AS builder
 
 ARG TARGETPLATFORM
 ARG BUILDPLATFORM
@@ -17,19 +17,7 @@ COPY --from=license-check /license-check /usr/bin/
 RUN mkdir -p /go/src/github.com/inlets/inlets-operator
 WORKDIR /go/src/github.com/inlets/inlets-operator
 
-# Cache the download before continuing
-COPY go.mod go.mod
-COPY go.sum go.sum
-RUN go mod download
-
-COPY pkg  pkg
-COPY main.go  main.go
-COPY image_test.go  image_test.go
-COPY controller.go  controller.go
-COPY validate.go validate.go
-COPY validate_test.go validate_test.go
-COPY config.go  config.go
-COPY config_test.go  config_test.go
+COPY . .
 
 RUN gofmt -l -d $(find . -type f -name '*.go' -not -path "./vendor/*")