Dockerfile

FROM --platform=$BUILDPLATFORM golang:1.21.6-alpine as go-builder
WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . .
ARG TARGETPLATFORM
# Set Golang build envs based on Docker platform string
RUN --mount=type=cache,target=/root/.cache \
    set -x \
    && case "$TARGETPLATFORM" in \
        'linux/amd64') export GOARCH=amd64 ;; \
        'linux/arm/v6') export GOARCH=arm GOARM=6 ;; \
        'linux/arm/v7') export GOARCH=arm GOARM=7 ;; \
        'linux/arm64' | 'linux/arm64/v8') export GOARCH=arm64 ;; \
        *) echo "Unsupported target: $TARGETPLATFORM" && exit 1 ;; \
    esac \
    && go build -ldflags='-w -s' -trimpath


FROM alpine
WORKDIR /app

RUN apk add --no-cache tzdata

COPY --from=go-builder /app/ruckus-mock-ssh .

CMD ["./ruckus-mock-ssh", "--address=:2222"]