Pod in nat-outgoing should not be SNATed when it accesses local cluster #10275
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marvin-tigera
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Description
When
natOutgoingis enabled in a IPPool, packets sent from Calico networked containers in this IP pool to destinations will be SNATed(msaqueraded).However, we would prefer that the traffic accessing local cluster hosts should not be msaqueraded.
Provide a enum setting
natOutgoingExclusions(default:IPPoolsOnly) in felix config.Configure which type of destinations is excluded from being masqueraded.
To maintain compatibility, this setting is not unconditionally enabled. We can consider switching its default value to
IPPoolsAndHostIPsin the future version.Related issues/PRs
fixes linux part of #8960
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