Use alpine images

Dockerfile

@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.22 AS builder
+FROM golang:1.22-alpine AS builder
 
 ARG RELEASE_VERSION=master
 ARG RELEASE_COMMIT=none

images/helper/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.22 AS builder
+FROM golang:1.22-alpine AS builder
 
 ARG RELEASE_VERSION=master
 ARG RELEASE_COMMIT=none

images/logscale-dummy/Dockerfile

@@ -1,7 +1,7 @@
-FROM golang:1.22 AS builder
+FROM golang:1.22-alpine AS builder
 
 WORKDIR /app/humio
 COPY . /app/humio
 RUN go run "$(go env GOROOT)/src/crypto/tls/generate_cert.go" -host dummy
 RUN chmod a+r key.pem
-RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /app/humio/dummy /app/humio/*.go
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /app/humio/dummy /app/humio/*.go

test.Dockerfile

@@ -1,8 +1,11 @@
-FROM golang:1.22.2
+# syntax=docker/dockerfile:1.7-labs
+FROM golang:1.22.2-alpine
+
+RUN apk add bash
 
 # Create and populate /var/src with the source code for the humio-operator repository
 RUN mkdir /var/src
-COPY ./ /var/src
+COPY --exclude=tmp --exclude=bin ./ /var/src
 WORKDIR /var/src
 
 RUN bash -c "rm -rf /var/src/tmp/*"