add hey image for HTTP load testing (#151)

Signed-off-by: Zbynek Roubalik <[email protected]>

e2e/images/hey/Dockerfile

@@ -0,0 +1,48 @@
+FROM golang:1.21 as build
+
+# Create appuser.
+ENV USER=appuser
+ENV UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    "${USER}"
+
+# Install Git and CA certificates
+RUN apt-get update && apt-get install -y \
+    ca-certificates \
+    git
+
+# Clone the hey repository
+RUN git clone https://github.com/rakyll/hey.git /go/src/github.com/rakyll/hey
+
+# Build
+WORKDIR /go/src/github.com/rakyll/hey
+RUN go mod download
+RUN CGO_ENABLED=0 GOOS=linux go build -o /go/bin/hey hey.go
+
+###############################################################################
+# final stage
+FROM scratch
+COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=build /etc/passwd /etc/passwd
+COPY --from=build /etc/group /etc/group
+USER appuser:appuser
+
+ARG APPLICATION="hey"
+ARG DESCRIPTION="HTTP load generator, ApacheBench (ab) replacement, formerly known as rakyll/boom"
+ARG PACKAGE="rakyll/hey"
+
+LABEL org.opencontainers.image.ref.name="${PACKAGE}" \
+    org.opencontainers.image.authors="Jaana Dogan <@rakyll>" \
+    org.opencontainers.image.documentation="https://github.com/${PACKAGE}/README.md" \
+    org.opencontainers.image.description="${DESCRIPTION}" \
+    org.opencontainers.image.licenses="Apache 2.0" \
+    org.opencontainers.image.source="https://github.com/${PACKAGE}"
+
+COPY --from=build /go/bin/${APPLICATION} /hey
+ENTRYPOINT ["/hey"]