dockerfile: ensure ca certificates are installed

Author: zadjadr

Dockerfile

@@ -1,3 +1,9 @@
+# Copy the CA certificates from a builder image
+FROM alpine:latest AS builder
+RUN apk update \
+  && apk add --no-cache ca-certificates
+
 FROM scratch
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
 COPY prometheus-cve-exporter /usr/bin/prometheus-cve-exporter
 ENTRYPOINT ["/usr/bin/prometheus-cve-exporter"]