Travis (.com) branch:
Travis (.com) feature_ppc64le branch:
Travis (.com) feature_s390x branch:
Travis (.com) feature_windows branch:
Travis (.com) feature_macos branch:
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
28a416c4b37e rancher/k3s:v1.17.3-k3s1 "/bin/k3s agent" 1 second ago Up Less than a second k3d-demo-worker-3
04fe731e548c rancher/k3s:v1.17.3-k3s1 "/bin/k3s agent" 2 seconds ago Up Less than a second k3d-demo-worker-2
b715684dc118 rancher/k3s:v1.17.3-k3s1 "/bin/k3s agent" 2 seconds ago Up 1 second k3d-demo-worker-1
f3feec9d69a5 rancher/k3s:v1.17.3-k3s1 "/bin/k3s agent" 3 seconds ago Up 2 seconds k3d-demo-worker-0
188a66f83bbc rancher/k3s:v1.17.3-k3s1 "/bin/k3s server --h…" 11 seconds ago Up 9 seconds 0.0.0.0:6443->6443/tcp k3d-demo-server
$ k3d list clusters
+------+------------------------------------+---------+---------+
| NAME | IMAGE | STATUS | WORKERS |
+------+------------------------------------+---------+---------+
| demo | docker.io/rancher/k3s:v1.17.3-k3s1 | running | 4/4 |
+------+------------------------------------+---------+---------+
$ sudo kubectl get nodes
NAME STATUS ROLES AGE VERSION
k3d-demo-server Ready master 7m14s v1.17.3+k3s1
k3d-demo-worker-0 Ready <none> 7m11s v1.17.3+k3s1
k3d-demo-worker-1 Ready <none> 7m9s v1.17.3+k3s1
k3d-demo-worker-3 Ready <none> 7m9s v1.17.3+k3s1
k3d-demo-worker-2 Ready <none> 7m8s v1.17.3+k3s1
$ sudo kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system coredns-d798c9dd-js8b5 1/1 Running 0 7m6s
kube-system local-path-provisioner-58fb86bdfd-dxwfm 1/1 Running 0 7m6s
kube-system metrics-server-6d684c7b5-7qnvd 1/1 Running 0 7m6s
kube-system helm-install-traefik-9brf9 0/1 Completed 2 7m5s
kube-system svclb-traefik-49stj 2/2 Running 0 6m28s
kube-system svclb-traefik-7xx69 2/2 Running 0 6m28s
kube-system svclb-traefik-rg75h 2/2 Running 0 6m28s
kube-system svclb-traefik-rjb5m 2/2 Running 0 6m28s
kube-system svclb-traefik-fc6pw 2/2 Running 0 6m28s
kube-system traefik-6787cddb4b-zfbqv 1/1 Running 0 6m29s
local-path-storage local-path-provisioner-8db6b8556-j2f7w 1/1 Running 0 5s
$ sudo kubectl get pod -n kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
local-path-provisioner-58fb86bdfd-7wx8k 1/1 Running 0 7m2s 10.42.2.2 k3d-demo-worker-0 <none> <none>
metrics-server-6d684c7b5-cjw9l 1/1 Running 0 7m2s 10.42.4.2 k3d-demo-worker-3 <none> <none>
coredns-d798c9dd-9cqtf 1/1 Running 0 7m2s 10.42.0.2 k3d-demo-worker-2 <none> <none>
helm-install-traefik-5gcv7 0/1 Completed 2 7m2s 10.42.3.2 k3d-demo-worker-1 <none> <none>
svclb-traefik-pq5df 2/2 Running 0 6m36s 10.42.3.3 k3d-demo-worker-1 <none> <none>
svclb-traefik-xlvp7 2/2 Running 0 6m36s 10.42.4.3 k3d-demo-worker-3 <none> <none>
svclb-traefik-9xhw2 2/2 Running 0 6m36s 10.42.2.3 k3d-demo-worker-0 <none> <none>
svclb-traefik-tvmwb 2/2 Running 0 6m36s 10.42.0.3 k3d-demo-worker-2 <none> <none>
svclb-traefik-7p58r 2/2 Running 0 6m36s 10.42.1.2 k3d-demo-server <none> <none>
traefik-6787cddb4b-tmx42 1/1 Running 0 6m36s 10.42.1.3 k3d-demo-server <none> <none>
$ sudo kubectl get service --all-namespaces
NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
default kubernetes ClusterIP 10.43.0.1 <none> 443/TCP 7m18s
kube-system kube-dns ClusterIP 10.43.0.10 <none> 53/UDP,53/TCP,9153/TCP 7m16s
kube-system metrics-server ClusterIP 10.43.0.179 <none> 443/TCP 7m16s
kube-system traefik-prometheus ClusterIP 10.43.39.87 <none> 9100/TCP 6m37s
kube-system traefik LoadBalancer 10.43.225.245 172.18.0.2 80:32297/TCP,443:30385/TCP 6m37s
$ sudo kubectl cluster-info
Kubernetes master is running at https://localhost:6443
CoreDNS is running at https://localhost:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Metrics-server is running at https://localhost:6443/api/v1/namespaces/kube-system/services/https:metrics-server:/proxy
#Add local storage
- sudo kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/master/deploy/local-path-storage.yaml
- sudo kubectl get pods --all-namespaces
- sudo kubectl get storageclass
$ sudo kubectl get pods --all-namespaces
NAMESPACE NAME READY STATUS RESTARTS AGE
kube-system local-path-provisioner-58fb86bdfd-dxwfm 1/1 Running 0 7m6s
local-path-storage local-path-provisioner-8db6b8556-j2f7w 1/1 Running 0 5s
k3d is a utility designed to easily run K3s in Docker.
https://rancher.com/docs/k3s/latest/en/advanced/#running-k3d-k3s-in-docker-and-docker-compose
use the install script to grab the latest release:
wget: wget -q -O - https://raw.githubusercontent.com/rancher/k3d/master/install.sh | bash
curl: curl -s https://raw.githubusercontent.com/rancher/k3d/master/install.sh | bash
use the install script to grab a specific release (via TAG environment variable):
wget: wget -q -O - https://raw.githubusercontent.com/rancher/k3d/master/install.sh | TAG=v3.0.0-beta.0 bash
curl: curl -s https://raw.githubusercontent.com/rancher/k3d/master/install.sh | TAG=v3.0.0-beta.0 bash
use Homebrew: brew install k3d (Homebrew is available for MacOS and Linux)
Formula can be found in homebrew/homebrew-core and is mirrored to homebrew/linuxbrew-core
k3d create cluster CLUSTER_NAME to create a new single-node cluster (= 1 container running k3s)
Get the new cluster’s connection details merged into your default kubeconfig (usually specified using the KUBECONFIG environment variable or the default path $HOME/.kube/config) and directly switch to the new context:
k3d get kubeconfig mycluster --switch
kubectl get pods --all-namespaces
Use the new cluster with kubectl, e.g.:
kubectl get nodes
k3d delete cluster CLUSTER_NAME to delete the default cluster
https://github.com/rancher/k3d
troubleshooting
sudo k3d --timestamp --verbose create cluster --wait 360 --name demo --api-port localhost:6444 --publish 8080:80 --server-arg --tls-san="127.0.0.1" --workers 3 #Create a single- or multi-node k3s cluster in docker containers
kubectl config view
unset KUBECONFIG
lsof -i
https://github.com/rancher/k3d
Kubernetes storage
https://openebs.io
OpenZFS on Linux and FreeBSD
https://github.com/openzfs/zfs
Native ZFS on Linux
https://zfsonlinux.org/
https://k3s.io/
https://github.com/rancher/k3s
macOS Version
The default backend on macOS is hyperkit, wrapping Apple’s Hypervisor.framework
You need macOS Yosemite, version 10.10.3 or later installed on a 2010 or newer Mac
https://docs.travis-ci.com/user/reference/osx/#macos-version