# Cluster Lifecycle Management
# Start the Kubernetes cluster
# Sealer run command line
One command deploy an entire kubernetes cluster.
sealer run kubernetes:v1.19.8 -m 192.168.0.1 -p password
Flags:
Flags:
--cmd-args strings set args for image cmd instruction
-e, --env strings set custom environment variables
-h, --help help for run
-m, --masters string set Count or IPList to masters
-n, --nodes string set Count or IPList to nodes
-p, --passwd string set cloud provider or baremetal server password
--pk string set baremetal server private key (default "/root/.ssh/id_rsa")
--pk-passwd string set baremetal server private key password
--port string set the sshd service port number for the server (default port: 22) (default "22")
--provider ALI_CLOUD set infra provider, example ALI_CLOUD, the local server need ignore this
-u, --user string set baremetal server username (default "root")
More examples :
run cloud image on an exists servers
Server ip address | 192.168.0.1 ~ 192.168.0.13 |
---|---|
server password | sealer123 |
Run the kubernetes cluster on the local server.
sealer run kubernetes:v1.19.8 \
-m 192.168.0.1,192.168.0.2,192.168.0.3 \
-n 192.168.0.4,192.168.0.5,192.168.0.6 \
-p sealer123 # ssh passwd
Check the Cluster
[root@iZm5e42unzb79kod55hehvZ ~]# kubectl get node
NAME STATUS ROLES AGE VERSION
izm5e42unzb79kod55hehvz Ready master 18h v1.19.8
izm5ehdjw3kru84f0kq7r7z Ready master 18h v1.19.8
izm5ehdjw3kru84f0kq7r8z Ready master 18h v1.19.8
izm5ehdjw3kru84f0kq7r9z Ready <none> 18h v1.19.8
izm5ehdjw3kru84f0kq7raz Ready <none> 18h v1.19.8
izm5ehdjw3kru84f0kq7rbz Ready <none> 18h v1.19.8
# Scale up and down the Kubernetes cluster
Using join command to scale up the local server.
$ sealer join \
--masters 192.168.0.7,192.168.0.8,192.168.0.9,192.168.0.10 \
--nodes 192.168.0.11,192.168.0.12,192.168.0.13
# or
$ sealer join --masters 192.168.0.7-192.168.0.10 --nodes 192.168.0.11-192.168.0.13
Using delete command to scale down the local server.
$ sealer delete \
--masters 192.168.0.7,192.168.0.8,192.168.0.9,192.168.0.10 \
--nodes 192.168.0.11,192.168.0.12,192.168.0.13
# or
$ sealer delete --masters 192.168.0.7-192.168.0.10 --nodes 192.168.0.11-192.168.0.13
# Upgrade the Kubernetes cluster
Specify which image you want to use for upgrading as well as the cluster name you want to upgrade via a flag "-c".
sealer upgrade registry.cn-beijing.aliyuncs.com/sealer-io/kubernetes:v1.19.9_develop -c my-cluster
if the flag "-c" is missed,sealer will use the default cluster name instead.
# Clean up the Kubernetes cluster
sealer delete --all
Sealer will also remove infrastructure resources if you use cloud mod.