v1.18.2-cluster

kubernetes v1.18.2 cluster

master:

• dqd:
  • ssst0n3/docker_archive:kubernetes-v1.18.2-master -> ssst0n3/docker_archive:kubernetes-v1.18.2-master_v0.1.0
  • ssst0n3/docker_archive:kubernetes-v1.18.2-master_v0.1.0
• ctr:
  • ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-master -> ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-master_v0.1.0
  • ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-master_v0.1.0

worker:

• dqd:
  • ssst0n3/docker_archive:kubernetes-v1.18.2-worker -> ssst0n3/docker_archive:kubernetes-v1.18.2-worker_v0.1.0
  • ssst0n3/docker_archive:kubernetes-v1.18.2-worker_v0.1.0
• ctr:
  • ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-worker -> ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-worker_v0.1.0
  • ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-worker_v0.1.0

network topology

• eth0: Provides internet connectivity; ports 22 and 6443 are exposed via eth0.
• eth1: Used for inter-VM communication; isolated from the internet.

                            ┌─────────┐
                            │ Host/NAT│
                            └────┬────┘
                                 │
         ┌───────────────────────┴────────────────────────┐
         │                                                │
         │ eth0 10.0.2.15 (NAT)      eth0 10.0.2.15 (NAT) |
    ┌────▼────┐                                      ┌────▼────┐
    │ master  │                                      │  worker │
    │        eth1 10.0.2.16/24   ⇆    10.0.2.17/24 eth1        |
    └─────────┘                                      └─────────┘

usage

$ cd kubernetes/v1.18.2-cluster
$ docker compose -f docker-compose.yml -f docker-compose.kvm.yml up -d

$ kubectl --kubeconfig=kubeconfig get nodes -o wide
NAME                       STATUS   ROLES    AGE     VERSION   INTERNAL-IP   EXTERNAL-IP   OS-IMAGE             KERNEL-VERSION      CONTAINER-RUNTIME
kubernetes-1-18-2          Ready    master   5d11h   v1.18.2   10.0.2.16     <none>        Ubuntu 20.04.6 LTS   5.4.0-216-generic   containerd://1.3.3
kubernetes-1-18-2-worker   Ready    <none>   5d7h    v1.18.2   <none>        <none>        Ubuntu 20.04.6 LTS   5.4.0-216-generic   containerd://1.3.3
$ kubectl --kubeconfig=kubeconfig get pods -A      
NAMESPACE         NAME                                        READY   STATUS    RESTARTS   AGE
calico-system     calico-kube-controllers-57f767d97b-k895s    1/1     Running   2          5d11h
calico-system     calico-node-rj4b5                           1/1     Running   2          5d11h
calico-system     calico-node-rn2dh                           1/1     Running   1          5d7h
calico-system     calico-typha-58d98468d6-tqwgk               1/1     Running   3          5d11h
kube-system       coredns-66bff467f8-47gvn                    1/1     Running   2          5d11h
kube-system       coredns-66bff467f8-ztcgw                    1/1     Running   2          5d11h
kube-system       etcd-kubernetes-1-18-2                      1/1     Running   3          5d11h
kube-system       kube-apiserver-kubernetes-1-18-2            1/1     Running   3          5d11h
kube-system       kube-controller-manager-kubernetes-1-18-2   1/1     Running   3          5d11h
kube-system       kube-proxy-8lhf9                            1/1     Running   1          5d7h
kube-system       kube-proxy-n2xtn                            1/1     Running   3          5d11h
kube-system       kube-scheduler-kubernetes-1-18-2            1/1     Running   3          5d11h
tigera-operator   tigera-operator-6ddb54fbf5-ppb6x            1/1     Running   4          5d11h

$ ./ssh
root@kubernetes-1-18-2:~# helm version
version.BuildInfo{Version:"v3.2.4", GitCommit:"0ad800ef43d3b826f31a5ad8dfbb4fe05d143688", GitTreeState:"clean", GoVersion:"go1.13.12"}
root@kubernetes-1-18-2:~# kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.2", GitCommit:"52c56ce7a8272c798dbc29846288d7cd9fbae032", GitTreeState:"clean", BuildDate:"2020-04-16T11:56:40Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.2", GitCommit:"52c56ce7a8272c798dbc29846288d7cd9fbae032", GitTreeState:"clean", BuildDate:"2020-04-16T11:48:36Z", GoVersion:"go1.13.9", Compiler:"gc", Platform:"linux/amd64"}
root@kubernetes-1-18-2:~# containerd --version
containerd github.com/containerd/containerd v1.3.3 d76c121f76a5fc8a462dc64594aea72fe18e1178
root@kubernetes-1-18-2:~# runc --version
runc version 1.0.0-rc10
spec: 1.0.1-dev
root@kubernetes-1-18-2:~# uname -a
Linux kubernetes-1-18-2 5.4.0-216-generic #236-Ubuntu SMP Fri Apr 11 19:53:21 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
root@kubernetes-1-18-2:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal

build

execute and wait until [10570.630877] [master] Waiting for at least one worker node to become Ready. in the dmesg

make all DIR=kubernetes/v1.18.2-cluster/master

and then execute:

make all DIR=kubernetes/v1.18.2-cluster/worker

for developers

master

# syntax=docker/dockerfile:1-labs
FROM ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-master_v0.1.0
...
RUN --security=insecure ["/sbin/init", "--log-target=kmsg"]

• use dmesg -w to see build logs.
• use systemd service to execute commands
• ssh root/root 10.0.2.16 to debug

worker

# syntax=docker/dockerfile:1-labs
FROM ssst0n3/docker_archive:ctr_kubernetes-v1.18.2-worker_v0.1.0
...
RUN --security=insecure ["/sbin/init", "--log-target=kmsg"]

• use dmesg -w to see build logs.
• use systemd service to execute commands
• ssh root/root 10.0.2.17 to debug