Dockerfile.alpine

# Build the runner binary
FROM golang:1.26.2-alpine3.23@sha256:f85330846cde1e57ca9ec309382da3b8e6ae3ab943d2739500e08c86393a21b1 AS builder

WORKDIR /workspace
# Copy the Go Modules manifests
COPY go.mod go.mod
COPY go.sum go.sum

# cache deps before building and copying source so that we don't need to re-download as much
# and so that source changes don't invalidate our downloaded layer
RUN go mod download

# Copy the go source
COPY main.go main.go
COPY src/ src/

# Build
RUN CGO_ENABLED=0 GO111MODULE=on go build -a -o runner main.go

# Use distroless as minimal base image to package the runner binary
# Refer to https://github.com/GoogleContainerTools/distroless for more details
FROM alpine:3.23.4@sha256:5b10f432ef3da1b8d4c7eb6c487f2f5a8f096bc91145e68878dd4a5019afde11
RUN apk add socat
WORKDIR /
COPY --from=builder /workspace/runner .
ENTRYPOINT ["/runner"]