Dockerfile

FROM golang:1.24.4-alpine AS build

ARG GO_LDFLAGS

RUN mkdir /app
WORKDIR /app
COPY . /app/
RUN --mount=type=cache,target=/go/pkg/mod CGO_ENABLED=0 GOOS=linux go build -ldflags "${GO_LDFLAGS} -extldflags '-static'" -o /app/flagger-k6-webhook cmd/main.go

FROM alpine:3.22

COPY --from=build /app/flagger-k6-webhook /usr/bin/flagger-k6-webhook
COPY --from=grafana/k6 /usr/bin/k6 /usr/bin/k6

ENTRYPOINT ["/usr/bin/flagger-k6-webhook"]
USER 65534