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Check if file exists before reading

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This commit is contained in:
Thomas Boop
2020-01-03 15:02:47 -05:00
parent ac1a076a3b
commit c9924d5b7c
1 changed files with 9 additions and 4 deletions
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13
src/Runner.Worker/ContainerOperationProvider.cs
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@@ -61,11 +61,16 @@ namespace GitHub.Runner.Worker
{
throw new NotSupportedException("Container feature is not supported when runner is already running inside container.");
}
#else
var initProcessCgroup = File.ReadLines("/proc/1/cgroup");
if (initProcessCgroup.Any(x => x.IndexOf(":/docker/", StringComparison.OrdinalIgnoreCase) >= 0))
#else
var path = "/proc/1/cgroup";
// OSX does not have this file, but you cannot run OSX as a base image for docker containers currently.
if (File.Exists(path))
{
throw new NotSupportedException("Container feature is not supported when runner is already running inside container.");
var initProcessCgroup = File.ReadLines(path);
if (initProcessCgroup.Any(x => x.IndexOf(":/docker/", StringComparison.OrdinalIgnoreCase) >= 0))
{
throw new NotSupportedException("Container feature is not supported when runner is already running inside container.");
}
}
#endif