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Dockerfile

@@ -3,6 +3,12 @@
 # BUILDPLATFORM is an automatic platform ARG enabled by Docker BuildKit.
 # Represents the platform where the build is happening, do not mix with
 # TARGETARCH
-FROM docker.io/library/alpine:3.20.3
+FROM docker.io/library/alpine:3.20.3@sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d AS builder
 RUN apk add --no-cache curl iputils bind-tools tcpdump
+
+FROM docker.io/library/alpine:3.20.3@sha256:beefdbd8a1da6d2915566fde36db9db0b524eb737fc57cd1367effd16dc0d06d
+COPY --from=builder /usr/bin/curl /usr/bin/curl
+COPY --from=builder /usr/bin/ping /usr/bin/ping
+COPY --from=builder /usr/bin/dig /usr/bin/dig
+COPY --from=builder /usr/sbin/tcpdump /usr/sbin/tcpdump
 ENTRYPOINT ["/usr/bin/curl"]