Enable IPV6 config on Sandbox creation on live-restore case

[selansen]

This is to address issue moby/moby#35757.

In sandbox creation we disable IPV6 config. But this causes problem in live-restore case
where all IPV6 configs are wiped out on running container. Hence extra check has been added
take care of this issue.

Signed-off-by: selansen elango.siva@docker.com

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@0eff162). Click here to learn what that means.
The diff coverage is 100%.

@@            Coverage Diff            @@
##             master    #2043   +/-   ##
=========================================
  Coverage          ?   40.12%           
=========================================
  Files             ?      138           
  Lines             ?    22132           
  Branches          ?        0           
=========================================
  Hits              ?     8881           
  Misses            ?    11955           
  Partials          ?     1296

Impacted Files	Coverage Δ
osl/namespace_linux.go	35.31% <100%> (ø)

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[mavenugo]

LGTM

Can you pls write a test case for this ?

[fcrisciani]

LGTM too, waiting for the test

[aboch]

Can you please avoid the double indentation of the logic below by instead

if !isRestore && !n.isDefault {

Thanks

[thaJeztah]

ping @selansen ^^

[selansen]

I made the changes but trying to come up with unit test for this case and its kind of tricky to recreate this scenario with unit test case. will try to commit with basic unit test for live-restore true case while creating sandbox and commit it.

…

On Wed, Dec 27, 2017 at 8:05 AM, Sebastiaan van Stijn < ***@***.***> wrote: ***@***.**** commented on this pull request. ------------------------------ In osl/namespace_linux.go <#2043 (comment)>: > @@ -220,15 +220,18 @@ func NewSandbox(key string, osCreate, isRestore bool) (Sandbox, error) { if err != nil { logrus.Warnf("Failed to set the timeout on the sandbox netlink handle sockets: %v", err) } - - // As starting point, disable IPv6 on all interfaces - if !n.isDefault { - err = setIPv6(n.path, "all", false) - if err != nil { - logrus.Warnf("Failed to disable IPv6 on all interfaces on network namespace %q: %v", n.path, err) + // In live-restore mode, IPV6 entries are getting cleaned up due to below code + // We should retain IPV6 configrations in live-restore mode when Docker Daemon + // comesback. It should work as it is on other cases + if !isRestore { ping @selansen <https://github.com/selansen> ^^ — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#2043 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AKEKnyYUb_epb7-Zk62CQVVtHsrYPvDPks5tEkCqgaJpZM4RKUCx> .

[GordonTheTurtle]

Please sign your commits following these rules:
https://github.com/moby/moby/blob/master/CONTRIBUTING.md#sign-your-work
The easiest way to do this is to amend the last commit:

$ git clone -b "master" git@github.com:selansen/libnetwork.git somewhere
$ cd somewhere
$ git rebase -i HEAD~842354563768
editor opens
change each 'pick' to 'edit'
save the file and quit
$ git commit --amend -s --no-edit
$ git rebase --continue # and repeat the amend for each commit
$ git push -f

Amending updates the existing PR. You DO NOT need to open a new one.

[selansen]

Incorporated all comments and added new unit test case . Pls merge the commit into upstream.

[fcrisciani]

LGTM

[abhi]

LGTM