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error when adding container to pod with network information #7390

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merged 1 commit into from
Aug 21, 2020

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baude
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@baude baude commented Aug 20, 2020

because a pod's network information is dictated by the infra container at creation, a container cannot be created with network attributes. this has been difficult for users to understand. we now return an error when a container is being created inside a pod and passes any of the following attributes:

  • static IP (v4 and v6)
  • static mac
  • ports -p (i.e. -p 8080:80)
  • exposed ports (i.e. 222-225)
  • publish ports from image -P

Signed-off-by: Brent Baude bbaude@redhat.com

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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: baude

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@openshift-ci-robot openshift-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Aug 20, 2020
@TomSweeneyRedHat
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Does this handle #7373?

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Yep, it does fix #7376
LGTM
assuming happy test

return errors.Wrap(define.ErrNetworkOnPodContainer, "MAC addresses must be defined when the pod is created")
}
if len(s.CNINetworks) > 0 {
return errors.Wrap(define.ErrNetworkOnPodContainer, "networks must be defined when the pod is created")
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AFAIK This can't happen. If I use --net foobar the container won't join the pod namespace.

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Theoretically people could pass this via the REST API, so this would catch that.

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Ah, didn't knew you can set the netns separately via the api.

test/e2e/create_test.go Show resolved Hide resolved
test/e2e/create_test.go Show resolved Hide resolved
test/e2e/create_test.go Show resolved Hide resolved
because a pod's network information is dictated by the infra container at creation, a container cannot be created with network attributes.  this has been difficult for users to understand.  we now return an error when a container is being created inside a pod and passes any of the following attributes:

* static IP (v4 and v6)
* static mac
* ports -p (i.e. -p 8080:80)
* exposed ports (i.e. 222-225)
* publish ports from image -P

Signed-off-by: Brent Baude <bbaude@redhat.com>
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rhatdan commented Aug 21, 2020

/lgtm

@openshift-ci-robot openshift-ci-robot added the lgtm Indicates that a PR is ready to be merged. label Aug 21, 2020
@openshift-merge-robot openshift-merge-robot merged commit 4828455 into containers:master Aug 21, 2020
@baude baude deleted the podnet branch May 18, 2022 15:19
@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
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Sep 21, 2023
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7 participants