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move rootless netns slirp4netns process to systemd user.slice #13159

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merged 1 commit into from
Feb 8, 2022

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Luap99
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@Luap99 Luap99 commented Feb 7, 2022

When running podman inside systemd user units, it is possible that
systemd kills the rootless netns slirp4netns process because it was
started in the default unit cgroup. When the unit is stopped all
processes in that cgroup are killed. Since the slirp4netns process is
run once for all containers it should not be killed. To make sure
systemd will not kill the process we move it to the user.slice.

Fixes #13153

@openshift-ci openshift-ci bot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Feb 7, 2022
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Luap99 commented Feb 7, 2022

@mheon @giuseppe PTAL

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mheon commented Feb 7, 2022

Sure, LGTM

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LGTM
@edsantiago PTAL

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rhatdan commented Feb 7, 2022

/lgtm
/hold

@openshift-ci openshift-ci bot added the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Feb 7, 2022
@openshift-ci openshift-ci bot added the lgtm Indicates that a PR is ready to be merged. label Feb 7, 2022
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LGTM

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openshift-ci bot commented Feb 7, 2022

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: giuseppe, Luap99

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A few concerns, not enough to block.

test/system/250-systemd.bats Show resolved Hide resolved
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test/system/250-systemd.bats Show resolved Hide resolved
When running podman inside systemd user units, it is possible that
systemd kills the rootless netns slirp4netns process because it was
started in the default unit cgroup. When the unit is stopped all
processes in that cgroup are killed. Since the slirp4netns process is
run once for all containers it should not be killed. To make sure
systemd will not kill the process we move it to the user.slice.

Fixes containers#13153

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
@openshift-ci openshift-ci bot removed the lgtm Indicates that a PR is ready to be merged. label Feb 7, 2022
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LGTM

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/lgtm

@openshift-ci openshift-ci bot added the lgtm Indicates that a PR is ready to be merged. label Feb 8, 2022
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Luap99 commented Feb 8, 2022

/hold cancel

@openshift-ci openshift-ci bot removed the do-not-merge/hold Indicates that a PR should not merge because someone has issued a /hold command. label Feb 8, 2022
@openshift-merge-robot openshift-merge-robot merged commit cbd0980 into containers:main Feb 8, 2022
@Luap99 Luap99 deleted the slirp4-scope branch February 8, 2022 12:42
@github-actions github-actions bot added the locked - please file new issue/PR Assist humans wanting to comment on an old issue or PR with locked comments. label Sep 21, 2023
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container can't connect to outer IPs (routing issue?)
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