22 lines
762 B
Docker
22 lines
762 B
Docker
FROM alpine:3.7
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MAINTAINER Disassembler <disassembler@dasm.cz>
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RUN \
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# Create OS user (which will be picked up later by apk add)
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addgroup -S -g 587 postfix \
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&& adduser -S -u 587 -h /var/spool/postfix -s /bin/false -g postfix -G postfix postfix \
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# Install Postfix
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&& apk --no-cache add ca-certificates postfix s6 \
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# Build aliases database
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&& newaliases \
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# Cleanup
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&& sed -ir '/^(#.*)?$/d' /etc/postfix/aliases \
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&& rm -r /etc/postfix/access /etc/postfix/canonical /etc/postfix/dynamicmaps.cf* /etc/postfix/generic /etc/postfix/header_checks /etc/postfix/postfix-files.d /etc/postfix/relocated /etc/postfix/transport /etc/postfix/virtual
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COPY docker/ /
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VOLUME ["/etc/postfix", "/var/spool/postfix"]
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EXPOSE 25
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CMD ["s6-svscan", "/etc/services.d"]
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