keep_awake | The sleeper must awaken
kandi X-RAY | keep_awake Summary
kandi X-RAY | keep_awake Summary
Give your app a good wakeup call with KeepAwake. The sleeper must awaken.
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QUESTION
I would like my container to launch two processes when it is run;
- the generic "this process is runnning to keep the container awake" process (
keep_awake.sh
), and node app.js
Is there any way to have both of these launch at the start, based in the dockerfile?
I'm thinking of some sort of abuse of bash, but don't know specifically which one yet.
Further complicating things, keep_awake.sh
is in a directory different than app.js
.
ANSWER
Answered 2019-Jul-10 at 13:59You should never need an artificial “keep this container alive” process. This is doubly true in the situation you’re describing, where you have a single long-running application process.
Best practice is for a Docker container to run a single process, and run it as a foreground job. If that process ever exits, the container will exit too — and you want this. (It’d be kind of embarrassing for your Node app to die but for you to not notice, because Docker sees that tail -f /dev/null
is still up and running.)
In short, end your Dockerfile with
QUESTION
My problem is that I am working on an air app that communicates with each other through serversocket (server) socket (client)
When I test it in Air debug launcher everything works on the server side (I can see the server from a different internet connection)
But when I try to host from Android device it only works on LAN (can't see hosted server from the different connection)
My question is why it works in the Test environment but not in the built APP.. soo frustrating.
here is my serverside code:
...ANSWER
Answered 2018-Jul-19 at 11:49For those who will struggle with this problem in the future. Mainly 2 things required to be able to host a socket server successfully visible from the internet:
-port forwarding.
-put your air app in firewall "allow" list. (in my situation this was the missing part. ouch!)
Now everything works as it should.
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