benthos-collector.Dockerfile

FROM --platform=$BUILDPLATFORM golang:1.24.0-alpine3.21@sha256:2d40d4fc278dad38be0777d5e2a88a2c6dee51b0b29c97a764fc6c6a11ca893c AS builder

RUN apk add --update --no-cache ca-certificates make git curl

ARG TARGETPLATFORM

WORKDIR /src

ARG GOPROXY

ENV CGO_ENABLED=0

ENV GOCACHE=/go/cache
ENV GOMODCACHE=/go/pkg/mod

COPY --link go.mod go.sum ./

RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/go/cache \
    go mod download -x

ARG VERSION

COPY --link . .

RUN chmod +x entrypoint.sh

RUN --mount=type=cache,target=/go/pkg/mod \
    --mount=type=cache,target=/go/cache \
    go build -ldflags "-X main.version=${VERSION}" -o /usr/local/bin/benthos ./cmd/benthos-collector

FROM alpine:3.21.3@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c

RUN apk add --update --no-cache ca-certificates tzdata bash

SHELL ["/bin/bash", "-c"]

# This is so we can reuse presets in development
WORKDIR /etc/benthos

COPY cloudevents.spec.json /etc/benthos/

COPY collector/benthos/presets /etc/benthos/presets

COPY --link --from=builder /usr/local/bin/benthos /usr/local/bin/
COPY --link --from=builder /src/entrypoint.sh /entrypoint.sh

ENTRYPOINT ["/entrypoint.sh", "/usr/local/bin/benthos"]