Cài K8S bằng Kubespray thì Worker node cần bao nhiêu RAM?

TASK [kubernetes/preinstall : Stop if memory is too small for nodes] ***********
fatal: [worker1]: FAILED! => {
    "assertion": "ansible_memtotal_mb >= minimal_node_memory_mb",
    "changed": false,
    "evaluated_to": false,
    "msg": "Assertion failed"
}
fatal: [worker2]: FAILED! => {
    "assertion": "ansible_memtotal_mb >= minimal_node_memory_mb",
    "changed": false,
    "evaluated_to": false,
    "msg": "Assertion failed"
}

PLAY RECAP *********************************************************************
localhost                  : ok=3    changed=0    unreachable=0    failed=0    skipped=0    rescued=0    ignored=0
master1                    : ok=57   changed=2    unreachable=0    failed=0    skipped=56   rescued=0    ignored=0
worker1                    : ok=50   changed=2    unreachable=0    failed=1    skipped=47   rescued=0    ignored=0
worker2                    : ok=50   changed=2    unreachable=0    failed=1    skipped=47   rescued=0    ignored=0

Tuesday 28 November 2023  09:20:25 +0000 (0:00:00.054)       0:00:14.815 ******
===============================================================================
kubespray-defaults : Gather ansible_default_ipv4 from all hosts --------- 3.04s
Gather necessary facts (hardware) --------------------------------------- 1.08s
bootstrap-os : Install dbus for the hostname module --------------------- 0.72s
bootstrap-os : Assign inventory name to unconfigured hostnames (non-CoreOS, non-Flatcar, Suse and ClearLinux, non-Fedora) --- 0.67s
download : Download | Download files / images --------------------------- 0.56s
kubernetes/preinstall : Remove swapfile from /etc/fstab ----------------- 0.44s
bootstrap-os : Gather host facts to get ansible_os_family --------------- 0.42s
adduser : User | Create User -------------------------------------------- 0.36s
Gather minimal facts ---------------------------------------------------- 0.34s
Gather necessary facts (network) ---------------------------------------- 0.33s
bootstrap-os : Create remote_tmp for it is used by another module ------- 0.30s
kubernetes/preinstall : Check if booted with ostree --------------------- 0.29s
kubernetes/preinstall : Get content of /etc/resolv.conf ----------------- 0.28s
kubernetes/preinstall : Set is_fedora_coreos ---------------------------- 0.28s
kubernetes/preinstall : Check swap -------------------------------------- 0.27s
bootstrap-os : Ensure bash_completion.d folder exists ------------------- 0.25s
adduser : User | Create User Group -------------------------------------- 0.25s
kubernetes/preinstall : Check status of /etc/resolv.conf ---------------- 0.19s
kubernetes/preinstall : Check if /etc/dhclient.conf exists -------------- 0.18s
kubernetes/preinstall : Check resolvconf -------------------------------- 0.17s