0f7cddee4d
As a side effect, this fixes the crash on restart if files referenced in previous generated configuration are now missing
103 lines
No EOL
3.5 KiB
Bash
Executable file
103 lines
No EOL
3.5 KiB
Bash
Executable file
#!/bin/bash
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###############################################################################
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#
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# Signals:
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# - HUP: reload docker-gen
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# - USR1: reload nginx
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#
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###############################################################################
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set -u
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function start_docker_gen {
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echo "~~~~~ Starting docker-gen ~~~~~"
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{
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while true; do
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docker-gen -watch -notify "kill -USR1 1" /app/nginx.tmpl /etc/nginx/conf.d/default.conf
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echo "docker-gen exited"
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echo "~~~~~ Restarting docker-gen ~~~~~~"
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done
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} &
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}
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function start_nginx {
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echo "~~~~~ Starting nginx ~~~~~"
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{
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while true; do
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nginx
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echo "nginx exited, checking config..."
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if nginx -t; then
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echo "~~~~~ Restarting nginx ~~~~~~"
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else
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exit 1
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fi
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done
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} &
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}
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function reload_nginx {
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if pgrep nginx >/dev/null; then
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# nginx is already running
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echo "~~~~~ Reloading nginx ~~~~~"
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pkill -HUP nginx
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else
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start_nginx
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fi
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}
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###############################################################################
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function handle_SIGHUP {
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echo "~~~~~ Signal HUP received ~~~~~"
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if ! pgrep nginx >/dev/null; then
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echo "~~~~~ Starting nginx ~~~~~"
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nginx &
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fi
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pkill -HUP docker-gen # forward SIGHUP to docker-gen
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wait
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}
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function handle_SIGUSR1 {
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echo "~~~~~ Signal USR1 received ~~~~~"
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reload_nginx
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wait
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}
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###############################################################################
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# If the user has run provided a command, run it instead
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if [ $# -ne 0 ]; then
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exec "$@"
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fi
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cat <<-OEBANNER
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███╗ ██╗ ██████╗ ██╗███╗ ██╗██╗ ██╗ ██████╗ ██████╗ ██████╗ ██╗ ██╗██╗ ██╗
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████╗ ██║██╔════╝ ██║████╗ ██║╚██╗██╔╝ ██╔══██╗██╔══██╗██╔═══██╗╚██╗██╔╝╚██╗ ██╔╝
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██╔██╗ ██║██║ ███╗██║██╔██╗ ██║ ╚███╔╝█████╗██████╔╝██████╔╝██║ ██║ ╚███╔╝ ╚████╔╝
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██║╚██╗██║██║ ██║██║██║╚██╗██║ ██╔██╗╚════╝██╔═══╝ ██╔══██╗██║ ██║ ██╔██╗ ╚██╔╝
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██║ ╚████║╚██████╔╝██║██║ ╚████║██╔╝ ██╗ ██║ ██║ ██║╚██████╔╝██╔╝ ██╗ ██║
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╚═╝ ╚═══╝ ╚═════╝ ╚═╝╚═╝ ╚═══╝╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═╝ ╚═╝
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OEBANNER
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# Error if the DOCKER_HOST socket does not exist
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if [[ $DOCKER_HOST == unix://* ]]; then
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socket_file=${DOCKER_HOST#unix://}
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if ! [ -S $socket_file ]; then
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cat >&2 <<-EOT
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ERROR: you need to share your Docker host socket with a volume at $socket_file
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Typically you should run your jwilder/nginx-proxy with: \`-v /var/run/docker.sock:$socket_file:ro\`
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See the documentation at http://git.io/vZaGJ
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EOT
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exit 1
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fi
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fi
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trap handle_SIGHUP HUP
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trap handle_SIGUSR1 USR1
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trap "exit 0" TERM
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rm /etc/nginx/conf.d/default.conf
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start_docker_gen
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wait |