fix: CLUSTER_DNS_SVC_IP & CLUSTER_KUBERNETES_SVC_IP ip concat error #1421
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What type of PR is this?
/kind bug
What this PR does / why we need it:
修复了在 CLUSTER_DNS_SVC_IP 和 CLUSTER_KUBERNETES_SVC_IP 中,处理超出 /24 子网掩码时 IP 地址获取错误的问题。在某些情况下,当 CIDR 超过 /24 时,最后一个八位字节的 IP 地址解析不正确,导致 IP 获取失败。
Which issue(s) this PR fixes:
Fixes #
Special notes for your reviewer:
Does this PR introduce a user-facing change?
Additional documentation e.g., KEPs (Kubernetes Enhancement Proposals), usage docs, etc.:
这个修复解决了超出 /24 子网掩码时,IP 地址计算错误的问题。特别是 /25、/26 等子网掩码时,CIDR 后缀(如 /25)被去除,确保只获取纯 IP 地址并正确计算偏移。