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kubeplay is a tool for offline deployment of kuberneres clusters based on kubespray.
- All dependencies included, installing offline with one single command
- amd64 and arm64 CPU architectures supported
- Validity of certificate generated by kubeadm extended to 10 years
- No docker dependency, seamless migrating container runtime to containerd
- Ideal for toB privatized deployment scenarios as all rpm/deb packages (e.g. storage client) needed by bootstraping cluster can be installed offline
- Multi-cluster deployment supported, deploying a new kubernetes cluster with Job Pods within kubernetes cluster
- Offline installer built with GitHub Actions, no charge, 100% open source 100% free
| addon | version | usage |
|---|---|---|
| kubernetes | v1.21.4 | kubernetes |
| containerd | v1.4.6 | container runtime |
| etcd | v3.4.13 | etcd service |
| crictl | v1.21.0 | CRI CLI tool |
| pause | 3.3 | pause container image |
| cni-plugins | v0.9.1 | CNI plugins |
| calico | v3.18.5 | calico |
| autoscaler | 1.8.3 | DNS auto scaling |
| coredns | v1.8.0 | cluster DNS service |
| flannel | v0.14.0 | flannel |
| cilium | v1.9.10 | cilium |
| nginx | 1.19 | reverse proxy of APIserver |
| canal | calico/flannel | calico and flannel intergration |
| helm | v3.6.3 | helm CLI tool |
| nerdctl | 0.8.0 | containerd CLI tool |
| nerdctl-full | 0.11.0 | containerd toolset |
| registry | v2.7.1 | container image registry |
| skopeo | v1.4.0 | image porting tool |
| distribution | version | arch |
|---|---|---|
| CentOS | 7/8 | amd64/arm64 |
| Debian | 9/10 | amd64/arm64 |
| Ubuntu | 18.04/20.04 | amd64/arm64 |
| Fedora | 33/34 | amd64/arm64 |
Running nginx and registry with nerdctl compose on deploy node where deployment tool would run, which provide offline resource download and image distribution services.
Using kubespray which come from kubernetes community as a cluster deployment executor, needed resources during deployment will fetched from compose node.
You can download the package matching your platform from the releases page k8sli/kubeplay/releases on GitHub, then copy it to deploy node.
kubeplay-v0.1.0-alpha.3-centos-7.sha256sum.txt # checksum file
kubeplay-v0.1.0-alpha.3-centos-7-amd64.tar.gz # for CentOS 7 amd64
kubeplay-v0.1.0-alpha.3-centos-7-amd64.tar.gz # for CentOS 7 arm64$ tar -xpf kubeplay-x.y.z-xxx-xxx.tar.gz
$ cd kubeplay
$ cp config-sample.yaml config.yaml
$ vi config.yamlThe config.yaml configuration file is divided into the following sections：
- compose：config for nginx and registry on current deploy node
- kubespray：kubespray deployment config
- invenory：ssh config for nodes of kubernetes cluster
- default：default config values
| parameter | description | example |
|---|---|---|
| internal_ip | reachable IP of deploy node | 192.168.10.11 |
| nginx_http_port | nginx serve port | 8080 |
| registry_domain | registry service domain | kube.registry.local |
compose:
# Compose bootstrap node ip, default is local internal ip
internal_ip: 172.20.0.25
# Nginx http server bind port for download files and packages
nginx_http_port: 8080
# Registry domain for CRI runtime download images
registry_domain: kube.registry.local| parameter | description | example |
|---|---|---|
| kube_version | kubernetes version | v1.21.3 |
| external_apiserver_access_ip | external APIserver access IP | 192.168.10.100 |
| kube_network_plugin | selected CNI plugin | calico |
| container_manager | container runtime | containerd |
| etcd_deployment_type | etcd deployment mode | host |
kubespray:
# Kubernetes version by default, only support v1.20.6
kube_version: v1.21.3
# For deploy HA cluster you must configure a external apiserver access ip
external_apiserver_access_ip: 127.0.0.1
# Set network plugin to calico with vxlan mode by default
kube_network_plugin: calico
#Container runtime, only support containerd if offline deploy
container_manager: containerd
# Now only support host if use containerd as CRI runtime
etcd_deployment_type: host
# Settings for etcd event server
etcd_events_cluster_setup: true
etcd_events_cluster_enabled: trueinventory is the ssh login configuration for nodes of kubernetes cluster , supporting yaml, json, and ini formats.
| parameter | description | example |
|---|---|---|
| ansible_port | ssh port using by ansible | 22 |
| ansible_user | ssh user using by ansible | root |
| ansible_ssh_pass | ssh password using by ansible | password |
| ansible_ssh_private_key_file | ssh private key using by ansible if choose to login without password | only valid value is /kubespray/config/id_rsa |
| ansible_host | node IP | 172.20.0.21 |
- yaml format
# Cluster nodes inventory info
inventory:
all:
vars:
ansible_port: 22
ansible_user: root
ansible_ssh_pass: Password
# ansible_ssh_private_key_file: /kubespray/config/id_rsa
hosts:
node1:
ansible_host: 172.20.0.21
node2:
ansible_host: 172.20.0.22
node3:
ansible_host: 172.20.0.23
node4:
ansible_host: 172.20.0.24
children:
kube_control_plane:
hosts:
node1:
node2:
node3:
kube_node:
hosts:
node1:
node2:
node3:
node4:
etcd:
hosts:
node1:
node2:
node3:
k8s_cluster:
children:
kube_control_plane:
kube_node:
gpu:
hosts: {}
calico_rr:
hosts: {}- json format
inventory: |
{
"all": {
"vars": {
"ansible_port": 22,
"ansible_user": "root",
"ansible_ssh_pass": "Password"
},
"hosts": {
"node1": {
"ansible_host": "172.20.0.21"
},
"node2": {
"ansible_host": "172.20.0.22"
},
"node3": {
"ansible_host": "172.20.0.23"
},
"node4": {
"ansible_host": "172.20.0.24"
}
},
"children": {
"kube_control_plane": {
"hosts": {
"node1": null,
"node2": null,
"node3": null
}
},
"kube_node": {
"hosts": {
"node1": null,
"node2": null,
"node3": null,
"node4": null
}
},
"etcd": {
"hosts": {
"node1": null,
"node2": null,
"node3": null
}
},
"k8s_cluster": {
"children": {
"kube_control_plane": null,
"kube_node": null
}
},
"gpu": {
"hosts": {}
},
"calico_rr": {
"hosts": {}
}
}
}
}- ini fomat
inventory: |
[all:vars]
ansible_port=22
ansible_user=root
ansible_ssh_pass=Password
#ansible_ssh_private_key_file=/kubespray/config/id_rsa
[all]
kube-control-01 ansible_host=172.20.0.21
kube-control-02 ansible_host=172.20.0.23
kube-control-03 ansible_host=172.20.0.22
kube-node-01 ansible_host=172.20.0.24
[bastion]
# bastion-01 ansible_host=x.x.x.x ansible_user=some_user
[kube_control_plane]
kube-control-01
kube-control-02
kube-control-03
[etcd]
kube-control-01
kube-control-02
kube-control-03
[kube_node]
kube-control-01
kube-control-02
kube-control-03
kube-node-01
[calico_rr]
[k8s_cluster:children]
kube_control_plane
kube_node
calico_rrThe following default parameters are not recommended to be modified without special requirements, just leave them as default. Unmodified ntp_server value will be overrided by internal_ip from compose section; registry_ip and offline_resources_url are automatically generated based on the parameters in compose section thus not need to modify.
| parameter | description | example |
|---|---|---|
| ntp_server | ntp clock synchronization server domain or IP | - |
| registry_ip | registry IP | - |
| offline_resources_url | URL address for downloading offline resources | - |
| offline_resources_enabled | whether to deploy offline | true |
| generate_domain_crt | whether to generate self-signed certificate for mirror repository domain | true |
| image_repository | repo or project of image registry | library |
| registry_https_port | port of registry，PUSH operation disabled | 443 |
| registry_push_port | port of registry for PUSH | 5000 |
| download_container | whether to pull images of all components under all nodes | false |
| cilium_enable_hubble | enable support hubble in cilium | false |
| cilium_hubble_install | install hubble-relay, hubble-ui | false |
| cilium_hubble_tls_generate | install hubble-certgen and generate certificates | false |
| cilium_kube_proxy_replacement | Kube Proxy Replacement mode (strict/probe/partial) | probe |
default:
# NTP server ip address or domain, default is internal_ip
ntp_server:
- internal_ip
# Registry ip address, default is internal_ip
registry_ip: internal_ip
# Offline resource url for download files, default is internal_ip:nginx_http_port
offline_resources_url: internal_ip:nginx_http_port
# Use nginx and registry provide all offline resources
offline_resources_enabled: true
# Image repo in registry
image_repository: library
# Kubespray container image for deploy user cluster or scale
kubespray_image: "kubespray"
# Auto generate self-signed certificate for registry domain
generate_domain_crt: true
# For nodes pull image, use 443 as default
registry_https_port: 443
# For push image to this registry, use 5000 as default, and only bind at 127.0.0.1
registry_push_port: 5000
# Set false to disable download all container images on all nodes
download_container: false
# enable support hubble in cilium
cilium_enable_hubble: false
# install hubble-relay, hubble-ui
cilium_hubble_install: false
# install hubble-certgen and generate certificates
cilium_hubble_tls_generate: false
# Kube Proxy Replacement mode (strict/probe/partial)
cilium_kube_proxy_replacement: probe$ bash install.sh$ bash install.sh add-node $NODE_NAMES$ bash install.sh remove-node $NODE_NAME$ bash install.sh remove-cluster$ bash install.sh remove