* perf: disable mlockall to reduce memory usage

mlockall will lock all virtual memory page into physic memory and prevent memory recycle.
With this option rss size reduced from 39M to 7M

* perf: fix memory leak

* fix vpc-nat-gw gc
Co-authored-by: chenjianhui <chenjianhui@yealink.com>

* fix iptables for services with external traffic policy set to Local

* do not retry e2e testing

Previously every new url will create a metrics entry with url as label. It will keep increasing as pod/ip creating and will not be released which will exhaust the memory. Aggregate the metrics by url prefix.

* fix: 20ms is too short for eip and nats creation

* fix: 20ms is too short for eip and nats creation

Co-authored-by: chenjianhui <chenjianhui@yealink.com>

* edit ovs ovn source patch for compile ovs-dpdk

* add webhook vaildate the vpc resource whether can be deleted.

* add note for dpdk-v2 install

* set vhostuser dir 777 for qemu has the permission to create sock

* Change gosec args to make it happy
Co-authored-by: oilbeater <liumengxinfly@gmail.com>

* fix: const extGw may expired, after subnet updated, so use ipam subnet to cache ipv4|v6 gw

* fix: unittest

* fix: adjust as code style required

* fix: adjust as code style required

Signed-off-by: xujunjie-cover <xujunjielxx@163.com>

Signed-off-by: xujunjie-cover <xujunjielxx@163.com>

Signed-off-by: xujunjie-cover <xujunjielxx@163.com>

Change system-cluster-critical to system-node-critical to prevent pods of DaemonSet type from being (#1709)

* 新增switch lb rule功能

* 新增自定义coredns功能

* 修复ovn switch lb更新删除功能

* 优化vpc dns

* Optimize the code

* Optimize the code

* Optimize the code

* fix crd used by CoreDNS

Optimize the code

* Optimize the code

* Optimize the code
Co-authored-by: chenjianhui <chenjianhui@yealink.com>