# # Alpine image to get some needed data # FROM alpine:latest as alpine RUN apk add --no-cache \ ca-certificates \ tzdata # # Image # FROM scratch LABEL "com.centurylinklabs.watchtower"="true" # copy files from other containers COPY --from=alpine /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt COPY --from=alpine /usr/share/zoneinfo /usr/share/zoneinfo COPY watchtower / ENTRYPOINT ["/watchtower"]