fixes for pkg/sysinfo/checkCgroupPids #162
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In case we failed to find out what version of cgroup we have, it makes little sense to return that pids cgroup controller is available, and yet the current code does it. Fix this. Signed-off-by: Kir Kolyshkin <[email protected]>
For some reason this code chose not to use information already fetched, and call cgroups.FindCgroupMountpoint() instead. This is not a cheap call, as it has to parse the whole nine yards of /proc/self/mountinfo, and the info it tries to get (whether the pids controller is present) is already available from cgMounts map. Signed-off-by: Kir Kolyshkin <[email protected]>
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LGTM |
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LGTM |
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dns: Add support for `DNS` with containers via `aardvark`.
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1. pkg/sysinfo.checkCgroupPids: fix error path
In case we failed to find out what version of cgroup we have,
it makes little sense to return that pids cgroup controller
is available, and yet the current code does it.
Fix this.
2. pkg/sysinfo.checkCgroupPids: speedup
For some reason this code chose not to use information already fetched,
and call cgroups.FindCgroupMountpoint() instead. This is not a cheap
call, as it has to parse the whole nine yards of /proc/self/mountinfo,
and the info it tries to get (whether the pids controller is present)
is already available from cgMounts map.
This also prepares the code for the upcoming changes in runc (opencontainers/runc#2411).