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Fix issue with ipset or iptables chain removal during NodeNetworkPolicy updates or deletions #6707

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merged 1 commit into from
Oct 8, 2024

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@hongliangl hongliangl commented Sep 30, 2024

Fix #6706

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

@hongliangl hongliangl changed the title Fix that when destroying ipset when updating NodeNetworkPolicy Fix that when destroying ipset when updating/deleting NodeNetworkPolicy Sep 30, 2024
@hongliangl hongliangl added this to the Antrea v2.2 release milestone Sep 30, 2024
@hongliangl hongliangl added action/backport Indicates a PR that requires backports. action/release-note Indicates a PR that should be included in release notes. labels Sep 30, 2024
@antoninbas
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@hongliangl please fix the commit title / PR title (it's not a correct sentence), and add a commit message that explains what the issue was and what your change is doing.

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@hongliangl please fix the commit title / PR title (it's not a correct sentence), and add a commit message that explains what the issue was and what your change is doing.

Will do.

@hongliangl hongliangl changed the title Fix that when destroying ipset when updating/deleting NodeNetworkPolicy Fix issue with ipset or iptables chain removal during NodeNetworkPolicy updates or deletions Sep 30, 2024
@@ -442,19 +442,35 @@ func (r *nodeReconciler) update(lastRealized *nodePolicyLastRealized, newRule *C
ipnet := newLastRealized.ipnets[ipProtocol]
prevIPSet := lastRealized.ipsets[ipProtocol]
ipset := newLastRealized.ipsets[ipProtocol]

shouldUpdateCoreIPTRules := prevIPSet != ipset || prevIPNet != ipnet
// The name of ipset for a rule will not change during updates.
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is that why the case where ipset != "" && prevIPSet != "" && ipset != prevIPSet is not possible?

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Exactly. Here are the cases:

  • Single IP change: A -> B (prevIPSet = "", ipset = "", prevIPNet = A, ipnet = B).
  • Transition from multiple addresses to a single IP: {A, B} -> A (prevIPSet = "ipset name", ipset = "", prevIPNet = "", ipnet = A).
  • Transition from a single IP to multiple addresses: A -> {A, B} (prevIPNet = A, ipnet = "", prevIPSet = "", ipset = "ipset name").

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The ipset name is based on the rule ID, which determines that it will not change for a given rule.

s2p1 := mockRouteClient.DeleteNodeNetworkPolicyIPTables([]string{"ANTREA-POL-INGRESSRULE1"}, false).Times(1)
s2p2 := mockRouteClient.DeleteNodeNetworkPolicyIPSet("ANTREA-POL-INGRESSRULE1-4", false)
s2p3 := mockRouteClient.AddOrUpdateNodeNetworkPolicyIPTables([]string{"ANTREA-POL-INGRESS-RULES"}, [][]string{nil}, false).Times(1)
s1p2.After(s1p1)
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is there any chance that we can use gomock.InOrder for those? Maybe not because of the last one (s2p3.After(s1p2))?

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gomock.InOrder is a great way for these test cases! It can be used to optimize all the existing test cases.

@hongliangl hongliangl force-pushed the 20241001-fix-nnp branch 2 times, most recently from 58ceb7a to 56c8285 Compare October 8, 2024 04:35
…cy updates or deletions

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
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LGTM

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/test-kind-all

@antoninbas antoninbas merged commit 2722184 into antrea-io:main Oct 8, 2024
54 of 62 checks passed
@hongliangl hongliangl deleted the 20241001-fix-nnp branch October 9, 2024 01:58
hongliangl added a commit to hongliangl/antrea that referenced this pull request Oct 9, 2024
…cy updates or deletions (antrea-io#6707)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
hongliangl added a commit to hongliangl/antrea that referenced this pull request Oct 9, 2024
…cy updates or deletions (antrea-io#6707)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
hongliangl added a commit to hongliangl/antrea that referenced this pull request Oct 9, 2024
…cy updates or deletions (antrea-io#6707)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
tnqn pushed a commit that referenced this pull request Oct 9, 2024
…cy updates or deletions (#6707) (#6728)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
tnqn pushed a commit that referenced this pull request Oct 9, 2024
…cy updates or deletions (#6707) (#6727)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
tnqn pushed a commit that referenced this pull request Oct 9, 2024
…cy updates or deletions (#6707) (#6726)

This commit addresses an issue where stale ipset or iptables chain is
not deleted during NodeNetworkPolicy updates or deletions. The root cause
is that the ipset or iptables chain is still referenced by other iptables
rules during the deletion or update attempt. The fix ensures proper order
of ipset and iptables synchronization.

Signed-off-by: Hongliang Liu <[email protected]>
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Error destroying ipset when deleting NodeNetworkPolicy
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