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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
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Make the output of top tabular to be compatible with Docker. Please
note, that any user-input for `GetContainerPidInformation(...)` will be
ignored until we have found a way to generically and reliably parse ps-1
output or until there is a go-lib to extract all the data from /proc in
a ps-1 compatible fashion.
Fixes: #458
Signed-off-by: Valentin Rothberg <vrothberg@suse.com>
Closes: #939
Approved by: rhatdan
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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #507
Approved by: baude
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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #507
Approved by: baude
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Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
Closes: #619
Approved by: mheon
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This represents the stage3 implementation for the image library. At this point, we
are moving the image-centric functions to pkg/image including migration of args and
object-oriented references. This is a not a one-for-one migration of funcs and some
funcs will need to continue to reside in runtime_img as they are overly specific to
libpod and probably not useful to others.
Signed-off-by: baude <bbaude@redhat.com>
Closes: #484
Approved by: baude
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Due to the way ps arguments work, it was possible to display pids
that dont below to the container in top output. We now filter pids
that dont belong to the container out of the output. This also means
the pid column must be present in the output or we throw an error.
This resolves issue #391
Signed-off-by: baude <bbaude@redhat.com>
Closes: #400
Approved by: rhatdan
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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #222
Approved by: rhatdan
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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
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Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #209
Approved by: rhatdan
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Display information about processes in a running container.
Signed-off-by: baude <bbaude@redhat.com>
Closes: #121
Approved by: rhatdan
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