Modularize iptables manager #28746
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Modularize iptables manager #28746
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I've addressed all the feedbacks (the ones regarding modules manager have been pushed in the specific PR as well) but I'm planning to rework this quite a lot, so still not ready for review yet. |
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Fix iptables manager name to avoid the repetion of "iptables" in both package and type names (as suggested in "Effective Go" guidelines about naming: https://go.dev/doc/effective_go#names) Signed-off-by: Fabio Falzoi <fabio.falzoi@isovalent.com>
Modularize iptables configuration manager into its own cell. The previous Init method is replaced with an Invoke function in order to be executed when starting the iptables manager cell. Also, enableIPForwarding is moved in the iptables package and kept unexported, since it is not used outside of the package. Signed-off-by: Fabio Falzoi <fabio.falzoi@isovalent.com>
iptables has been modularized into a cell, but still depends directly on option.DaemonConfig global variables and helpers. The configuration flags that are "private" to the cell are provided through cell.Config. Regarding the flags and the helpers shared with other parts of the code, a SharedConfig struct is provided in the cell itself. Signed-off-by: Fabio Falzoi <fabio.falzoi@isovalent.com>
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Move AddToNodeIpset and RemoveFromNodeIpset into the iptables manager, so that other cells depending on them will import the iptables config manager through dependency injection. Signed-off-by: Fabio Falzoi <fabio.falzoi@isovalent.com>
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Force-pushed to fix controlplane tests: |
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Conformance Cluster Mesh failure tracked here, rerunning. |
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Modularize the iptables configuration manager in a cell.
Direct dependency to the DaemonConfig global object is avoided through a SharedConfig privately provided to the cell. This config gets the values from all the referenced DaemonConfig helpers at startup, in order to be used by the new cell.
Also, cells depending on iptables (like the node manager one) now takes a reference to it through dependency injection instead of directly calling side effectful exported functions.
Depends on #28713