Install services, populate mounted empty /var/spool on init
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FROM rockylinux:8
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ENV container docker
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#RUN (cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == \
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#systemd-tmpfiles-setup.service ] || rm -f $i; done); \
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#rm -f /lib/systemd/system/multi-user.target.wants/*;\
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#rm -f /etc/systemd/system/*.wants/*;\
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#rm -f /lib/systemd/system/local-fs.target.wants/*; \
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#rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
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#rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
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#rm -f /lib/systemd/system/basic.target.wants/*;\
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#rm -f /lib/systemd/system/anaconda.target.wants/*;
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COPY spool.tar.gz /var/
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RUN dnf install epel-release -y
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RUN dnf install postfix dovecot opendkim -y
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COPY mailpod-entrypoint /usr/local/bin
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COPY mailpod-entrypoint.service /etc/systemd/system/
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RUN systemctl enable mailpod-entrypoint.service
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VOLUME [ "/sys/fs/cgroup" ]
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#ENTRYPOINT ["/usr/sbin/mailpod-entrypoint"]
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CMD ["/usr/sbin/init"]
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#!/bin/bash
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if [[ "$(find /var/spool -maxdepth 0 -empty)" == "/var/spool" ]]; then
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pushd /var/spool &> /dev/null
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tar xzf ../spool.tar.gz
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popd &> /dev/null
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fi
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[Unit]
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Description=Mailpod entrypoint
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[Service]
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Type=simple
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ExecStart=/usr/local/bin/mailpod-entrypoint
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[Install]
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WantedBy=default.target
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