Comments (4)
justmeandopensource
commented on May 14, 2024
@quadebroadwell
The original bootstrap script installs whatever the latest version of Kubernetes is. And it was working fine until v1.15.0 was released. I couldn't get 1.15.0 working in LXC environment. So I locked the installation to 1.14.3. I don't remember seeing those errors.
I am going to spin up the cluster now and see if I get the same behaviour.
Thanks for pointing this out.
from kubernetes.
justmeandopensource
commented on May 14, 2024
@quadebroadwell
I just tried it on my environment and it worked perfectly fine. No Issues.
~ 🞂🞂 lxc list
+----------+---------+------------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+----------+---------+------------------------+------+------------+-----------+
| kmaster | RUNNING | 172.17.0.1 (docker0) | | PERSISTENT | |
| | | 10.92.250.141 (eth0) | | | |
| | | 10.244.0.1 (cni0) | | | |
| | | 10.244.0.0 (flannel.1) | | | |
+----------+---------+------------------------+------+------------+-----------+
| kworker1 | RUNNING | 172.17.0.1 (docker0) | | PERSISTENT | |
| | | 10.92.250.207 (eth0) | | | |
| | | 10.244.1.0 (flannel.1) | | | |
+----------+---------+------------------------+------+------------+-----------+
| kworker2 | RUNNING | 172.17.0.1 (docker0) | | PERSISTENT | |
| | | 10.92.250.73 (eth0) | | | |
| | | 10.244.2.0 (flannel.1) | | | |
+----------+---------+------------------------+------+------------+-----------+
~ 🞂🞂 kubectl -n kube-system get pods
NAME READY STATUS RESTARTS AGE
coredns-fb8b8dccf-llvpb 1/1 Running 0 18m
coredns-fb8b8dccf-n9cn6 1/1 Running 0 18m
etcd-kmaster 1/1 Running 0 17m
kube-apiserver-kmaster 1/1 Running 0 18m
kube-controller-manager-kmaster 1/1 Running 0 18m
kube-flannel-ds-amd64-c7vtd 1/1 Running 1 17m
kube-flannel-ds-amd64-v4wwf 1/1 Running 0 16m
kube-flannel-ds-amd64-zzqwn 1/1 Running 0 18m
kube-proxy-8v8ld 1/1 Running 0 17m
kube-proxy-clswp 1/1 Running 0 18m
kube-proxy-hzmhx 1/1 Running 0 16m
kube-scheduler-kmaster 1/1 Running 0 17m
And as mentioned in the video, I have created a separate lxc profile named "k8s" which is shown below.
~ 🞂🞂 lxc profile show k8s
config:
limits.cpu: "2"
limits.memory: 2GB
limits.memory.swap: "false"
linux.kernel_modules: ip_tables,ip6_tables,netlink_diag,nf_nat,overlay
raw.lxc: "lxc.apparmor.profile=unconfined\nlxc.cap.drop= \nlxc.cgroup.devices.allow=a\nlxc.mount.auto=proc:rw
sys:rw"
security.nesting: "true"
security.privileged: "true"
description: Default LXD profile
devices:
eth0:
name: eth0
nictype: bridged
parent: lxdbr0
type: nic
root:
path: /
pool: default
type: disk
name: k8s
used_by:
- /1.0/containers/kmaster
- /1.0/containers/kworker1
- /1.0/containers/kworker2
from kubernetes.
quadebroadwell
commented on May 14, 2024
Thanks for the response and again for your great videos, I found the issue, it seems the mtu of my bridged lxc device was set higher than the host ethernets mtu, this caused all my issues, just an fyi if anyone else runs into this, use
sudo ip link set mtu 1400 dev lxdbr0
To set the mtu of the mtu of your bridged device to a value lower than the host devices mtu.
from kubernetes.
justmeandopensource
commented on May 14, 2024
@quadebroadwell
Thanks for sharing the resolution.
from kubernetes.
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