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62 lines
1.8 KiB
Bash
Executable file
62 lines
1.8 KiB
Bash
Executable file
#!/bin/bash
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set -e
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container=docker
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export container
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if [ $# -eq 0 ]; then
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echo >&2 'ERROR: No command specified. You probably want to run `journalctl -f`, or maybe `bash`?'
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exit 1
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fi
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if [ ! -t 0 ]; then
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echo >&2 'ERROR: TTY needs to be enabled (`docker run -t ...`).'
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exit 1
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fi
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env > /etc/docker-entrypoint-env
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cat > /etc/systemd/system/docker-entrypoint.target << EOF
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[Unit]
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Description=the target for docker-entrypoint.service
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Requires=docker-entrypoint.service systemd-logind.service systemd-user-sessions.service
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EOF
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quoted_args="$(printf " %q" "${@}")"
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echo "${quoted_args}" > /etc/docker-entrypoint-cmd
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cat > /etc/systemd/system/docker-entrypoint.service << EOF
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[Unit]
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Description=docker-entrypoint.service
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[Service]
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ExecStart=/bin/bash -exc "source /etc/docker-entrypoint-cmd"
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# EXIT_STATUS is either an exit code integer or a signal name string, see systemd.exec(5)
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ExecStopPost=/bin/bash -ec "if echo \${EXIT_STATUS} | grep [A-Z] > /dev/null; then echo >&2 \"got signal \${EXIT_STATUS}\"; systemctl exit \$(( 128 + \$( kill -l \${EXIT_STATUS} ) )); else systemctl exit \${EXIT_STATUS}; fi"
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StandardInput=tty-force
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StandardOutput=inherit
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StandardError=inherit
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WorkingDirectory=$(pwd)
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EnvironmentFile=/etc/docker-entrypoint-env
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[Install]
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WantedBy=multi-user.target
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EOF
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systemctl mask systemd-firstboot.service systemd-udevd.service
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systemctl unmask systemd-logind
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systemctl enable docker-entrypoint.service
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systemd=
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if [ -x /lib/systemd/systemd ]; then
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systemd=/lib/systemd/systemd
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elif [ -x /usr/lib/systemd/systemd ]; then
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systemd=/usr/lib/systemd/systemd
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elif [ -x /sbin/init ]; then
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systemd=/sbin/init
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else
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echo >&2 'ERROR: systemd is not installed'
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exit 1
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fi
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systemd_args="--show-status=false --unit=docker-entrypoint.target"
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echo "$0: starting $systemd $systemd_args"
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exec $systemd $systemd_args
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