fix: determine correct version for Golang components

Author: dervoeti

opa/Dockerfile

@@ -85,12 +85,11 @@ WORKDIR /opa
 
 RUN <<EOF
 # Unfortunately, we need to create a dummy Git repository to allow cyclonedx-gomod to determine the version of OPA
-git init
-git add go.mod
-git config --global user.email "[email protected]"
-git config --global user.name "dummy"
-git commit -m "dummy"
-git tag "${PRODUCT}"
+git init && \
+git config user.email "[email protected]" && \
+git config user.name "Fake commiter" && \
+git commit --allow-empty --message "Fake commit, so that we can create a tag" &&
+git tag "v${PRODUCT}"
 go build -o opa -buildmode=exe
 ~/go/bin/cyclonedx-gomod app -json -output-version 1.5 -output "opa_${PRODUCT}.cdx.json" -packages -files
 EOF

statsd_exporter/Dockerfile

@@ -31,12 +31,11 @@ curl "https://repo.stackable.tech/repository/packages/statsd_exporter/statsd_exp
   cd "statsd_exporter-${PRODUCT}" || exit
 
   # Unfortunately, we need to create a dummy Git repository to allow cyclonedx-gomod to determine the version of statsd_exporter
-  git init
-  git add go.mod
-  git config --global user.email "[email protected]"
-  git config --global user.name "dummy"
-  git commit -m "dummy"
-  git tag "${PRODUCT}"
+  git init && \
+  git config user.email "[email protected]" && \
+  git config user.name "Fake commiter" && \
+  git commit --allow-empty --message "Fake commit, so that we can create a tag" &&
+  git tag "v${PRODUCT}"
   go build -o ../statsd_exporter
   $GOPATH/bin/cyclonedx-gomod app -json -output-version 1.5 -output ../statsd_exporter-${PRODUCT}.cdx.json -packages -files
 )