"Remi L." <r...@sysdev.re> wrote:
> Hello everyone,
>
> I am an OpenBSD user and I recently installed Node.js. I managed to
> create an rc.d script to start a basic Node.js application, but it only
> starts manually.
>
> At OpenBSD boot, I can see that the application is started, but it
> doesn't work. I have the impression that it is related to the
> node_modules directory, because after inspection, the JavaScript file
> seems to stop at the line :
>
> const express = require("express");
>
> It cannot load the express module.
>
> Here are the full details so that you can reproduce the same error on
> your side:
>
> OpenBSD version: 7.3 (release + syspatch)
>
> Node version: 18.15.0
>
> npm version: 9.5.0
>
> Let's create a basic node.js app:
>
> mkdir /var/www/htdocs/app
> cd /var/www/htdocs/app/
> npm init -y
> npm install express
> touch server.js
> chown -R www.www /var/www/htdocs/app
> chmod -R 775 /var/www/htdocs/app
>
> /var/www/htdocs/app/server.js file:
>
> --8<--
> const express = require("express");
>
> const app = express();
>
> app.get("/", (req, res) => {
> res.send("Hello from OpenBSD");
> });
>
> app.listen(80, () => {
> console.log("Server started on port 80");
> });
>
> --EOF--
>
> You can run `node server.js` to test the url: http://your-ip
>
> Ctrl-c to quit
>
> Now let's create the /etc/rc.d/app script:
>
> --8<--
> #!/bin/ksh
>
> daemon="/usr/local/bin/node"
> daemon_execdir="/var/www/htdocs/app"
> daemon_flags="server.js"
> daemon_logger="daemon.info"
After checking rc_exec() in /etc/rc.d/rc.subr, a hack you can try to get
more information is removing the daemon_logger variable and change
daemon_flags to
daemon_flags="server.js >/tmp/server.js.log 2>&1
That should create a /tmp/server.js.log file with the program's stdout
and stderr. Give it a try with rcctl start / stop, and if it works, go
with a reboot.
> #daemon_rtable=0
> #daemon_timeout=30
> #daemon_user=root
>
> . /etc/rc.d/rc.subr
>
> #pexp="$(eval echo ${daemon}${daemon_flags:+ ${daemon_flags}})"
> rc_bg="YES"
> rc_reload="NO"
> #rc_reload_signal=HUP
> #rc_stop_signal=TERM
> #rc_usercheck= # (undefined or "NO")
>
> #rc_configtest() {
> #}
>
> #rc_pre() {
> #}
>
> #rc_start() {
> # rc_exec "${daemon} ${daemon_flags}"
> #}
>
> #rc_check() {
> # pgrep -T "${daemon_rtable}" -q -xf "${pexp}"
> #}
>
> #rc_reload() {
> # pkill -${rc_reload_signal} -T "${daemon_rtable}" -xf "${pexp}"
> #}
>
> #rc_stop() {
> # pkill -${rc_stop_signal} -T "${daemon_rtable}" -xf "${pexp}"
> #}
>
> #rc_post() {
> #}
>
> rc_cmd $1
> --EOF--
>
> chmod +x /etc/rc.d/app
> rcctl enable app
>
> Start the app: rcctl start app
>
> Check in the browser or use: netstat -anf inet | grep 80
>
> Stop the app: rcctl stop app
>
> Check that it is not anymore started: pgrep node => nothing
>
> - Reboot -
>
> If I do a `dmesg -s`, I can see the following line:
>
> starting package daemons: app.
>
> No errors, no output, even in the /var/log/daemon log.
>
> I would be very grateful for any help or advice that you can provide.
>
>
>
> Sincerely,
>
> -- Remi
>
> "Everyone makes mistakes, and the best way to learn is from our
> mistakes." - Henry Ford
