49 lines
1.5 KiB
Docker
49 lines
1.5 KiB
Docker
#
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# simple postfix smarthost smtp relay
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#
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FROM alpine:3.13
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# standardized labels
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LABEL author="Asif Bacchus <asif@bacchus.cloud>"
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LABEL maintainer="Asif Bacchus <asif@bacchus.cloud>"
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LABEL org.label-schema.schema-version="1.0"
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LABEL org.label-schema.docker.cmd=""
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LABEL org.label-schema.description="Simple postfix smarthost smtp mail relay on Alpine Linux."
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LABEL org.label-schema.url=""
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LABEL org.label-schema.usage=""
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LABEL org.label-schema.vcs-url=""
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# install mSMTP
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RUN apk --no-cache \
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ca-certificates \
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postfix \
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bind-tools \
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&& rm -f /var/cache/apk/*
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# set environment variables
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ENV TZ=Etc/UTC
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ENV LOCAL_HOSTNAME=${HOSTNAME}
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ENV LOCAL_DOMAINNAME=""
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ENV LOCAL_ENCRYPTION=false
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ENV SMARTHOST=""
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ENV SMARTHOST_PORT=587
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ENV SMARTHOST_USERNAME=""
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ENV SMARTHOST_PASSWORD=""
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ENV SMARTHOST_ENCRYPTION="OPTIONAL"
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# copy configuration snippets
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COPY main.cf.insert /tmp/main.cf.insert
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COPY entrypoint.sh /usr/local/bin/entrypoint.sh
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# set entrypoint and default command
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ENTRYPOINT [ "/usr/local/bin/entrypoint.sh" ]
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CMD [ "/usr/local/sbin/postfix", "start-fg" ]
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# set parameters, vendor, version and build-date labels
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LABEL org.label-schema.docker.params="TZ=Etc/UTC, HOSTNAME=HOSTNAME, DOMAINNAME=(derived from hostname), LOCAL_ENCRYPTION=false, SMARTHOST, SMARTHOST_PORT=587, SMARTHOST_USERNAME, SMARTHOST_PASSWORD, SMARTHOST_ENCRYPTION='OPTIONAL'"
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LABEL org.label-schema.vendor="Alpine 3.13, Postfix 3.5.10-r0"
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LABEL org.label-schema.version="0.1"
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ARG BUILD_DATE
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LABEL org.label-schema.build-date=${BUILD_DATE}
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