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154224f109
This PR adds Pitchfork, as we want to move away from Unicorn ultimately. Unicorn still boots by default, so there should be no disruption for anyone. To use Pitchfork instead of Unicorn, the `RUN_PITCHFORK` environment variable must be set. This will make `bin/rails s` and `config/unicorn_launcher` boot Pitchfork. `unicorn_launcher` was patched because that way we can easily switch between Unicorn and Pitchfork without having to change too many things on the infra side. The upgrader from the `docker_manager` plugin doesn’t work yet with Pitchfork. This will be addressed in a future PR.
82 lines
1.8 KiB
Bash
Executable file
Vendored
82 lines
1.8 KiB
Bash
Executable file
Vendored
#!/bin/bash
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# This is a helper script you can use to supervise unicorn, it allows you to perform a live restart
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# by sending it a USR2 signal
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LOCAL_WEB="http://127.0.0.1:3000/"
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function log()
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{
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echo "($$) $1"
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}
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function on_exit()
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{
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kill $UNICORN_PID
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log "exiting"
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}
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function on_reload()
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{
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log "Stopping Sidekiq"
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kill -s TSTP $UNICORN_PID
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log "Reloading unicorn ($UNICORN_PID)"
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kill -s USR2 $UNICORN_PID
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unset NEW_UNICORN_PID
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count=0
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while [ "$count" -lt 180 -a -z "$NEW_UNICORN_PID" ]; do
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NEW_UNICORN_PID=`ps -f --ppid $UNICORN_PID | grep 'unicorn master' | grep -v old | grep -v worker | awk '{ print $2 }'`
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log "Waiting for new unicorn master pid... $NEW_UNICORN_PID"
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count=$((count+1))
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sleep 1
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done
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if [ -n "$NEW_UNICORN_PID" ]; then
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count=0
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while [ "$count" -lt 180 -a -z "$(ps -f --ppid $NEW_UNICORN_PID | grep worker | head -1 | awk '{ print $2 }')" ]; do
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log "Waiting for new unicorn workers under $NEW_UNICORN_PID to start up..."
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count=$((count+1))
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sleep 1
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done
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curl $LOCAL_WEB &> /dev/null
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kill -s QUIT $UNICORN_PID
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log "Old pid is: $UNICORN_PID New pid is: $NEW_UNICORN_PID"
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UNICORN_PID=$NEW_UNICORN_PID
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else
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log "Unicorn is taking too long to reload...Sending TERM to $UNICORN_PID"
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kill -s TERM $UNICORN_PID
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fi
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}
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function on_reopenlogs()
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{
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log "Reopening logs"
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kill -s USR1 $UNICORN_PID
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}
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export UNICORN_SUPERVISOR_PID=$$
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trap on_exit EXIT
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if [[ -z "$RUN_PITCHFORK" ]]; then
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trap on_reload USR2 HUP
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trap on_reopenlogs USR1
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unicorn $@ &
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else
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args=()
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for arg in "$@"; do
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args+=("${arg/unicorn.conf.rb/pitchfork.conf.rb}")
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done
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pitchfork "${args[@]}" &
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fi
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UNICORN_PID=$!
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echo "supervisor pid: $UNICORN_SUPERVISOR_PID unicorn pid: $UNICORN_PID"
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while kill -0 $UNICORN_PID
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do
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sleep 1
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done
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