CPLB continue to add CPLB IP as etcd.peerAddress #4664
Comments
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Hi, this is indeed wrong. |
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Sure! |
That smells like it's the problem, yes. The original PR just skipped the dummy interface and didn't take into account that the virtual IP could be attached to a different interface, as well. Still not sure why k0s chose the second address. The assumption was that Go's A proper fix would be to exclude/blacklist VRRP IPs when determining the address. The code is currently structured in a way that makes make this difficult. On the other hand, k0s should probably also prefer the primary (i.e. non-secondary) address of an interface. That's self-contained and should be enough to fix this issue. |
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The issue is marked as stale since no activity has been recorded in 30 days |
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The issue is marked as stale since no activity has been recorded in 30 days |
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The issue is marked as stale since no activity has been recorded in 30 days |
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The issue is marked as stale since no activity has been recorded in 30 days |
Before creating an issue, make sure you've checked the following:
Platform
Version
v1.30.2+k0s.0
Sysinfo
`k0s sysinfo`
root@node1:~# k0s sysinfo Total memory: 125.6 GiB (pass) Disk space available for /var/lib/k0s: 387.4 GiB (pass) Name resolution: localhost: [::1 127.0.0.1] (pass) Operating system: Linux (pass) Linux kernel release: 6.7.12+bpo-amd64 (pass) Max. file descriptors per process: current: 1048576 / max: 1048576 (pass) AppArmor: active (pass) Executable in PATH: modprobe: /usr/sbin/modprobe (pass) Executable in PATH: mount: /usr/bin/mount (pass) Executable in PATH: umount: /usr/bin/umount (pass) /proc file system: mounted (0x9fa0) (pass) Control Groups: version 2 (pass) cgroup controller "cpu": available (is a listed root controller) (pass) cgroup controller "cpuacct": available (via cpu in version 2) (pass) cgroup controller "cpuset": available (is a listed root controller) (pass) cgroup controller "memory": available (is a listed root controller) (pass) cgroup controller "devices": available (device filters attachable) (pass) cgroup controller "freezer": available (cgroup.freeze exists) (pass) cgroup controller "pids": available (is a listed root controller) (pass) cgroup controller "hugetlb": available (is a listed root controller) (pass) cgroup controller "blkio": available (via io in version 2) (pass) CONFIG_CGROUPS: Control Group support: built-in (pass) CONFIG_CGROUP_FREEZER: Freezer cgroup subsystem: built-in (pass) CONFIG_CGROUP_PIDS: PIDs cgroup subsystem: built-in (pass) CONFIG_CGROUP_DEVICE: Device controller for cgroups: built-in (pass) CONFIG_CPUSETS: Cpuset support: built-in (pass) CONFIG_CGROUP_CPUACCT: Simple CPU accounting cgroup subsystem: built-in (pass) CONFIG_MEMCG: Memory Resource Controller for Control Groups: built-in (pass) CONFIG_CGROUP_HUGETLB: HugeTLB Resource Controller for Control Groups: built-in (pass) CONFIG_CGROUP_SCHED: Group CPU scheduler: built-in (pass) CONFIG_FAIR_GROUP_SCHED: Group scheduling for SCHED_OTHER: built-in (pass) CONFIG_CFS_BANDWIDTH: CPU bandwidth provisioning for FAIR_GROUP_SCHED: built-in (pass) CONFIG_BLK_CGROUP: Block IO controller: built-in (pass) CONFIG_NAMESPACES: Namespaces support: built-in (pass) CONFIG_UTS_NS: UTS namespace: built-in (pass) CONFIG_IPC_NS: IPC namespace: built-in (pass) CONFIG_PID_NS: PID namespace: built-in (pass) CONFIG_NET_NS: Network namespace: built-in (pass) CONFIG_NET: Networking support: built-in (pass) CONFIG_INET: TCP/IP networking: built-in (pass) CONFIG_IPV6: The IPv6 protocol: built-in (pass) CONFIG_NETFILTER: Network packet filtering framework (Netfilter): built-in (pass) CONFIG_NETFILTER_ADVANCED: Advanced netfilter configuration: built-in (pass) CONFIG_NF_CONNTRACK: Netfilter connection tracking support: module (pass) CONFIG_NETFILTER_XTABLES: Netfilter Xtables support: module (pass) CONFIG_NETFILTER_XT_TARGET_REDIRECT: REDIRECT target support: module (pass) CONFIG_NETFILTER_XT_MATCH_COMMENT: "comment" match support: module (pass) CONFIG_NETFILTER_XT_MARK: nfmark target and match support: module (pass) CONFIG_NETFILTER_XT_SET: set target and match support: module (pass) CONFIG_NETFILTER_XT_TARGET_MASQUERADE: MASQUERADE target support: module (pass) CONFIG_NETFILTER_XT_NAT: "SNAT and DNAT" targets support: module (pass) CONFIG_NETFILTER_XT_MATCH_ADDRTYPE: "addrtype" address type match support: module (pass) CONFIG_NETFILTER_XT_MATCH_CONNTRACK: "conntrack" connection tracking match support: module (pass) CONFIG_NETFILTER_XT_MATCH_MULTIPORT: "multiport" Multiple port match support: module (pass) CONFIG_NETFILTER_XT_MATCH_RECENT: "recent" match support: module (pass) CONFIG_NETFILTER_XT_MATCH_STATISTIC: "statistic" match support: module (pass) CONFIG_NETFILTER_NETLINK: module (pass) CONFIG_NF_NAT: module (pass) CONFIG_IP_SET: IP set support: module (pass) CONFIG_IP_SET_HASH_IP: hash:ip set support: module (pass) CONFIG_IP_SET_HASH_NET: hash:net set support: module (pass) CONFIG_IP_VS: IP virtual server support: module (pass) CONFIG_IP_VS_NFCT: Netfilter connection tracking: built-in (pass) CONFIG_IP_VS_SH: Source hashing scheduling: module (pass) CONFIG_IP_VS_RR: Round-robin scheduling: module (pass) CONFIG_IP_VS_WRR: Weighted round-robin scheduling: module (pass) CONFIG_NF_CONNTRACK_IPV4: IPv4 connetion tracking support (required for NAT): unknown (warning) CONFIG_NF_REJECT_IPV4: IPv4 packet rejection: module (pass) CONFIG_NF_NAT_IPV4: IPv4 NAT: unknown (warning) CONFIG_IP_NF_IPTABLES: IP tables support: module (pass) CONFIG_IP_NF_FILTER: Packet filtering: module (pass) CONFIG_IP_NF_TARGET_REJECT: REJECT target support: module (pass) CONFIG_IP_NF_NAT: iptables NAT support: module (pass) CONFIG_IP_NF_MANGLE: Packet mangling: module (pass) CONFIG_NF_DEFRAG_IPV4: module (pass) CONFIG_NF_CONNTRACK_IPV6: IPv6 connetion tracking support (required for NAT): unknown (warning) CONFIG_NF_NAT_IPV6: IPv6 NAT: unknown (warning) CONFIG_IP6_NF_IPTABLES: IP6 tables support: module (pass) CONFIG_IP6_NF_FILTER: Packet filtering: module (pass) CONFIG_IP6_NF_MANGLE: Packet mangling: module (pass) CONFIG_IP6_NF_NAT: ip6tables NAT support: module (pass) CONFIG_NF_DEFRAG_IPV6: module (pass) CONFIG_BRIDGE: 802.1d Ethernet Bridging: module (pass) CONFIG_LLC: module (pass) CONFIG_STP: module (pass) CONFIG_EXT4_FS: The Extended 4 (ext4) filesystem: module (pass) CONFIG_PROC_FS: /proc file system support: built-in (pass) root@node1:~#What happened?
I thought the fix in #4582 would solve this issue, but k0s still puts the CPLB IP as etcd.peerAddress IP.
Steps to reproduce
privateInterfacefrom the configk0sctl applyExpected behavior
This is my k0sctl.yaml currently deployed:
Resulting in this k0s.yaml on the node:
After the fix in #4582, I thought I can remove the privateInterface from my config. And I would still get the same
k0s.yamlon my node and everything continue to work.Actual behavior
Removing
privateInterfacestill adds etcd.peerAddress which points to the CPLB IP which is WRONG.Screenshots and logs
No response
Additional context
I think the issue is that my primary network interface has two IPs due to the CPLB?
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