111 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
			
		
		
	
	
			111 lines
		
	
	
		
			2.0 KiB
		
	
	
	
		
			Nix
		
	
	
	
	
	
# Felix server
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{ config, pkgs, ... }:
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with pkgs.lib;
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let
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  cfg = config.services.felix;
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in
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{
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  ###### interface
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  options = {
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    services.felix = {
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      enable = mkOption {
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        default = false;
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        description = "Whether to enable the Apache Felix OSGi service";
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      };
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      bundles = mkOption {
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        default = [ pkgs.felix_remoteshell ];
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        description = "List of bundles that should be activated on startup";
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      };
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      user = mkOption {
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        default = "osgi";
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        description = "User account under which Apache Felix runs.";
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      };
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      group = mkOption {
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        default = "osgi";
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        description = "Group account under which Apache Felix runs.";
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      };
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    };
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  };
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  ###### implementation
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  config = mkIf cfg.enable {
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    users.extraGroups = singleton
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      { name = "osgi";
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        gid = config.ids.gids.osgi;
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      };
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    users.extraUsers = singleton
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      { name = "osgi";
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        uid = config.ids.uids.osgi;
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        description = "OSGi user";
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        home = "/homeless-shelter";
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      };
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    jobs.felix =
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      { description = "Felix server";
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        preStart =
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	  ''
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	    # Initialise felix instance on first startup
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	    if [ ! -d /var/felix ]
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	    then
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	        # Symlink system files
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	        mkdir -p /var/felix
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		chown ${cfg.user}:${cfg.group} /var/felix
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		for i in ${pkgs.felix}/*
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		do
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		    if [ "$i" != "${pkgs.felix}/bundle" ]
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		    then
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		        ln -sfn $i /var/felix/$(basename $i)
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		    fi
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		done
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		# Symlink bundles
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		mkdir -p /var/felix/bundle
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		chown ${cfg.user}:${cfg.group} /var/felix/bundle
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		for i in ${pkgs.felix}/bundle/* ${toString cfg.bundles}
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		do
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		    if [ -f $i ]
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		    then
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		        ln -sfn $i /var/felix/bundle/$(basename $i)
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		    elif [ -d $i ]
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		    then
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		        for j in $i/bundle/*
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			do
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			    ln -sfn $j /var/felix/bundle/$(basename $j)
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			done
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		    fi
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		done
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	    fi
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	  '';
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        script =
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          ''
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	    cd /var/felix
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            ${pkgs.su}/bin/su -s ${pkgs.bash}/bin/sh ${cfg.user} -c '${pkgs.jre}/bin/java -jar bin/felix.jar'
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          '';
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      };
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  };
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}
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