38 lines
1.1 KiB
Nix
38 lines
1.1 KiB
Nix
{
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liminix, lib, lim, s6
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}:
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{ service, interval, threshold, healthCheck } :
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let
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inherit (liminix.services) oneshot longrun;
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inherit (builtins) toString;
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inherit (service) name;
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checker = let name' = "check-${name}"; in longrun {
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name = name';
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run = ''
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fails=0
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echo waiting for /run/service/${name}
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${s6}/bin/s6-svwait -U /run/service/${name} || exit
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while sleep ${toString interval} ; do
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${healthCheck}
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if test $? -gt 0; then
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fails=$(expr $fails + 1)
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else
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fails=0
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fi
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echo fails $fails/${toString threshold} for ${name}
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if test "$fails" -gt "${toString threshold}" ; then
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echo time to die
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${s6}/bin/s6-svc -r /run/service/${name}
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echo bounced
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fails=0
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echo waiting for /run/service/${name}
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${s6}/bin/s6-svwait -U /run/service/${name}
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fi
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done
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'';
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};
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in service.overrideAttrs(o: {
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buildInputs = (lim.orEmpty o.buildInputs) ++ [ checker ];
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dependencies = (lim.orEmpty o.dependencies) ++ [ checker ];
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})
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