start_server
superdaemon for hot-deploying Perl server programs
Install
- All systems
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curl cmd.cat/start_server.sh
- Debian
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apt-get install libserver-starter-perl - Ubuntu
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apt-get install libserver-starter-perl - Kali Linux
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apt-get install libserver-starter-perl - Fedora
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dnf install perl-Server-Starter-start_server - Windows (WSL2)
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sudo apt-get updatesudo apt-get install libserver-starter-perl - Raspbian
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apt-get install libserver-starter-perl - Dockerfile
- dockerfile.run/start_server
libserver-starter-perl
superdaemon for hot-deploying Perl server programs
It is often a pain to write a server program that supports graceful restarts, with no resource leaks. Server::Starter solves the problem by splitting the task into two. One is start_server, a script provided as a part of the module, which works as a superdaemon that binds to zero or more TCP ports or unix sockets, and repeatedly spawns the server program that actually handles the necessary tasks (for example, responding to incoming commenctions). The spawned server programs under Server::Starter call accept(2) and handle the requests. To gracefully restart the server program, send SIGHUP to the superdaemon. The superdaemon spawns a new server program, and if (and only if) it starts up successfully, sends SIGTERM to the old server program.