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podman-top: use containers/psgo

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Use github.com/containers/psgo instead of execing `ps (1)`.  The psgo
library enables a much more flexible interface with respect to which
data to be printed (e.g., capabilities, seccomp mode, PID, PCPU, etc.)
while the output can be parsed reliably.  The library does not use
ps (1) but parses /proc and /dev instead.  To list the processes of a
given container, psgo will join the mount namespace of the given
container and extract all data from there.

Notice that this commit breaks compatibility with docker-top.

Signed-off-by: Valentin Rothberg <vrothberg@suse.com>

Closes: #1113
Approved by: rhatdan
This commit is contained in:
Valentin Rothberg
2018-07-19 14:41:58 +02:00
committed by Atomic Bot
parent 98703eb204
commit ba1871dac0
17 changed files with 1788 additions and 164 deletions
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vendor.conf
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@ -12,6 +12,7 @@ github.com/containernetworking/cni v0.7.0-alpha1
github.com/containernetworking/plugins 1fb94a4222eafc6f948eacdca9c9f2158b427e53
github.com/containers/image c6e0eee0f8eb38e78ae2e44a9aeea0576f451617
github.com/containers/storage 8b1a0f8d6863cf05709af333b8997a437652ec4c
github.com/containers/psgo 59a9dad536216e91da1861c9fbba75b85da84dcd
github.com/coreos/go-systemd v14
github.com/cri-o/ocicni master
github.com/cyphar/filepath-securejoin v0.2.1