Fail Retry: Verify that all nodes actually joined - Ubuntu

[ildoc]

Hi and THANKS for all the guide and the great tutorials!

I wanted to try to setup k3s as shown in the video and on my Proxmox I created 3 vms with Ubuntu Server 24.04 (2 cores, 8gb ram). The installation seems ok because I can see the single node running on each vm, but the playbook fails after all the retries while verifying that all the nodes are joined

the vms are pristine installations, I just created my user within sudo group

fatal: [192.168.0.180]: FAILED! => {"attempts": 20, "changed": false, "cmd": ["k3s", "kubectl", "get", "nodes", "-l", "node-role.kubernetes.io/master=true", "-o=jsonpath={.items[*].metadata.name}"], "delta": "0:00:00.072841", "end": "2024-05-01 16:16:43.919418", "msg": "", "rc": 0, "start": "2024-05-01 16:16:43.846577", "stderr": "", "stderr_lines": [], "stdout": "kube-01", "stdout_lines": ["kube-01"]}

fatal: [192.168.0.181]: FAILED! => {"attempts": 20, "changed": false, "cmd": ["k3s", "kubectl", "get", "nodes", "-l", "node-role.kubernetes.io/master=true", "-o=jsonpath={.items[*].metadata.name}"], "delta": "0:00:00.070174", "end": "2024-05-01 16:16:44.067933", "msg": "non-zero return code", "rc": 1, "start": "2024-05-01 16:16:43.997759", "stderr": "E0501 16:16:44.062749    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.062911    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.064138    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.064294    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.065538    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nThe connection to the server localhost:8080 was refused - did you specify the right host or port?", "stderr_lines": ["E0501 16:16:44.062749    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.062911    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.064138    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.064294    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.065538    3508 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "The connection to the server localhost:8080 was refused - did you specify the right host or port?"], "stdout": "", "stdout_lines": []}

fatal: [192.168.0.182]: FAILED! => {"attempts": 20, "changed": false, "cmd": ["k3s", "kubectl", "get", "nodes", "-l", "node-role.kubernetes.io/master=true", "-o=jsonpath={.items[*].metadata.name}"], "delta": "0:00:00.072233", "end": "2024-05-01 16:16:44.168025", "msg": "non-zero return code", "rc": 1, "start": "2024-05-01 16:16:44.095792", "stderr": "E0501 16:16:44.162642    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.162824    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.164079    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.164271    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nE0501 16:16:44.165486    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused\nThe connection to the server localhost:8080 was refused - did you specify the right host or port?", "stderr_lines": ["E0501 16:16:44.162642    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.162824    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.164079    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.164271    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "E0501 16:16:44.165486    3511 memcache.go:265] couldn't get current server API group list: Get \"http://localhost:8080/api?timeout=32s\": dial tcp 127.0.0.1:8080: connect: connection refused", "The connection to the server localhost:8080 was refused - did you specify the right host or port?"], "stdout": "", "stdout_lines": []}

my configs are:

hosts.ini

[master]
192.168.0.180
192.168.0.181
192.168.0.182

[node]


[k3s_cluster:children]
master
node

all.yml

---
k3s_version: v1.29.2+k3s1
# this is the user that has ssh access to these machines
ansible_user: filippo
systemd_dir: /etc/systemd/system

# Set your timezone
system_timezone: "Europe/Rome"

# interface which will be used for flannel
flannel_iface: "eth0"

# [...] I don't use either calico or cilium

# apiserver_endpoint is virtual ip-address which will be configured on each master
apiserver_endpoint: "192.168.0.222"

# k3s_token is required  masters can talk together securely
# this token should be alpha numeric only
k3s_token: "my-secret-token"

# The IP on which the node is reachable in the cluster.
# Here, a sensible default is provided, you can still override
# it for each of your hosts, though.
k3s_node_ip: "{{ ansible_facts[(cilium_iface | default(calico_iface | default(flannel_iface)))]['ipv4']['address'] }}"

# Disable the taint manually by setting: k3s_master_taint = false
k3s_master_taint: "{{ true if groups['node'] | default([]) | length >= 1 else false }}"

# these arguments are recommended for servers as well as agents:
extra_args: >-
  {{ '--flannel-iface=' + flannel_iface if calico_iface is not defined and cilium_iface is not defined else '' }}
  --node-ip={{ k3s_node_ip }}

# change these to your liking, the only required are: --disable servicelb, --tls-san {{ apiserver_endpoint }}
# the contents of the if block is also required if using calico or cilium
extra_server_args: >-
  {{ extra_args }}
  {{ '--node-taint node-role.kubernetes.io/master=true:NoSchedule' if k3s_master_taint else '' }}
  {% if calico_iface is defined or cilium_iface is defined %}
  --flannel-backend=none
  --disable-network-policy
  --cluster-cidr={{ cluster_cidr | default('10.52.0.0/16') }}
  {% endif %}
  --tls-san {{ apiserver_endpoint }}
  --disable servicelb
  --disable traefik

extra_agent_args: >-
  {{ extra_args }}

# image tag for kube-vip
kube_vip_tag_version: "v0.7.2"

# tag for kube-vip-cloud-provider manifest
# kube_vip_cloud_provider_tag_version: "main"

# kube-vip ip range for load balancer
# (uncomment to use kube-vip for services instead of MetalLB)
# kube_vip_lb_ip_range: "192.168.30.80-192.168.30.90"

# metallb type frr or native
metal_lb_type: "native"

# metallb mode layer2 or bgp
metal_lb_mode: "layer2"

# bgp options
# metal_lb_bgp_my_asn: "64513"
# metal_lb_bgp_peer_asn: "64512"
# metal_lb_bgp_peer_address: "192.168.30.1"

# image tag for metal lb
metal_lb_speaker_tag_version: "v0.14.3"
metal_lb_controller_tag_version: "v0.14.3"

# metallb ip range for load balancer
metal_lb_ip_range: "192.168.0.80-192.168.0.90"

# [...] I don't use proxmox lxc or custom registries

I tried the reset.yml and I read the #20, I'm using the latest version (0422bfa)

[ildoc]

I've found the error... I was using the wrong network interface