Kubernetes - 2022 sügis
Allikas: Imre kasutab arvutit
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Sissejuhatus
TODO
Rancher Management Cluster on Docker
Käivitamine
docker run -d --restart=unless-stopped \ -p 80:80 -p 443:443 \ --privileged \ rancher/rancher:latest
kus
- TODO
Jälgida käivitumist, kulub mitu minutit
root@tf-vm-1:~# docker logs -f practical_mcnulty
Seejärel pöörduda webgui haldusliidese poole, https://192.168.110.11/
Kasulikud lisamaterjalid
Node tekitamine
Node driver - https://github.com/lnxbil/docker-machine-driver-proxmox-ve/releases/download/v4/docker-machine-driver-proxmoxve.linux-amd64
https://github.com/rancher/os/releases aadressilt saab kopeerida
https://github.com/rancher/os/releases/download/v1.5.8/rancheros-proxmoxve-autoformat.iso
Template, defaultist erinevad
- debugDriver - linnutada
- debugResty - linnutada
- provisionStrategy - cdrom
- proxmoxHost - 192.168.110.250
- proxmoxNode - pm-kns
- proxmoxPool - vaiki
- proxmoxRealm - pam
- proxmoxUserName - root
- proxmoxUserPassword - parool
- sshPassword - tühi (tundub, et toimib rancheos default)
- sshPort - 22
- sshUsername - tühi (tundub, et toimib rancheos default)
- vmCloneFull - 2
- vmCloneVmid - tühi
- vmCpu -
- vmCpuCores - 1
- vmCpuSockets - 4
- vmImageFile - local:iso/rancheros-proxmoxve-autoformat.iso
- vmMemory - 4
- vmNetBridge - vmbr0
- vmNetFirewall - 0
- vmNetModel - virtio
- vmNetTag - 0
- vmScsiController - virtio-scsi-pci
- vmStoragePath - sn_data (tundub, et peab olema proxmox Directory tüüpi)
- vmStorageSize - 32
- vmStorageType - QCOW2
ja sama json kujul
{
"annotations": {
"ownerBindingsCreated": "true"
},
"baseType": "nodeTemplate",
"cloudCredentialId": null,
"created": "2022-10-26T22:51:41Z",
"createdTS": 1666824701000,
"creatorId": "user-7rrms",
"driver": "proxmoxve",
"engineEnv": { },
"engineInstallURL": "https://releases.rancher.com/install-docker/20.10.sh",
"engineLabel": { },
"engineOpt": { },
"engineRegistryMirror": [ ],
"id": "cattle-global-nt:nt-d9w8b",
"labels": {
"cattle.io/creator": "norman"
},
"links": {
"nodePools": "…/v3/nodePools?nodeTemplateId=cattle-global-nt%3Ant-d9w8b",
"nodes": "…/v3/nodes?nodeTemplateId=cattle-global-nt%3Ant-d9w8b",
"self": "…/v3/nodeTemplates/cattle-global-nt:nt-d9w8b",
"update": "…/v3/nodeTemplates/cattle-global-nt:nt-d9w8b"
},
"logOpt": { },
"name": "tmplimre",
"principalId": "local://user-7rrms",
"proxmoxveConfig": {
"debugDriver": true,
"debugResty": true,
"provisionStrategy": "cdrom",
"proxmoxHost": "192.168.110.250",
"proxmoxNode": "pm-kns",
"proxmoxPool": "vaiki",
"proxmoxRealm": "pam",
"proxmoxUserName": "root",
"proxmoxUserPassword": "parool",
"sshPassword": "",
"sshPort": "22",
"sshUsername": "",
"vmCienabled": "",
"vmCitype": "",
"vmCloneFull": "2",
"vmCloneVmid": "",
"vmCpu": "",
"vmCpuCores": "1",
"vmCpuSockets": "2",
"vmImageFile": "local:iso/rancheros-proxmoxve-autoformat.iso",
"vmMemory": "2",
"vmNetBridge": "vmbr0",
"vmNetFirewall": "0",
"vmNetModel": "virtio",
"vmNetMtu": "",
"vmNetTag": "0",
"vmNuma": "",
"vmProtection": "",
"vmScsiAttributes": "",
"vmScsiController": "virtio-scsi-pci",
"vmStartOnboot": "",
"vmStoragePath": "sn_data",
"vmStorageSize": "12",
"vmStorageType": "QCOW2",
"vmVmidRange": ""
},
"state": "active",
"storageOpt": { },
"transitioning": "no",
"transitioningMessage": "",
"type": "nodeTemplate",
"useInternalIpAddress": true,
"uuid": "a6c62f53-9316-41bb-8242-2d641988e522"
}
Rancher hallatud klastriga suhtlemine kubectl utiliidiga
Rancher hallatud klastriga töökohaarvutist käsurealt st kubectl utiliidi abil suhtlemiseks tuleb esmalt kopeerida kubectl utiliit
TODO
Seejärel Rancher webgui liidesest kopeerida klastri seadistus
TODO
ja klastri poole pöördumiseks öelda
$ /home/imre/kubectl --kubeconfig /home/imre/Downloads/clubu1.yaml get all --all-namespaces -o wide NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES cattle-fleet-system pod/fleet-agent-bfc5655cc-crbl6 1/1 Running 0 10m 10.42.0.12 clubu1 <none> <none> cattle-system pod/cattle-cluster-agent-674cc68d59-zgrkq 1/1 Running 1 (11m ago) 14m 10.42.0.5 clubu1 <none> <none> cattle-system pod/cattle-node-agent-n56dp 1/1 Running 0 14m 192.168.110.13 clubu1 <none> <none> cattle-system pod/helm-operation-7vpbz 0/2 Completed 0 9m36s 10.42.0.13 clubu1 <none> <none> ...
MetalLB load balanceri ja NginX ingress kontrolleri kasutamine
Paigaldamine
$ /home/imre/kubectl --kubeconfig /home/imre/Downloads/clc.yaml apply -f \ https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml
Tulemusena käivitatakse mitmesugused tegevused
imre@moraal:~/postgres-operator$ /home/imre/kubectl --kubeconfig /home/imre/Downloads/clc.yaml get all -n metallb-system NAME READY STATUS RESTARTS AGE pod/controller-6c58495cbb-qnb8h 1/1 Running 0 2d15h pod/speaker-lpkf9 1/1 Running 0 2d15h NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/webhook-service ClusterIP 10.43.195.140 <none> 443/TCP 2d15h NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE daemonset.apps/speaker 1 1 1 1 1 kubernetes.io/os=linux 2d15h NAME READY UP-TO-DATE AVAILABLE AGE deployment.apps/controller 1/1 1 1 2d15h NAME DESIRED CURRENT READY AGE replicaset.apps/controller-6c58495cbb 1 1 1 2d15h
Tekitada aadresside pool mida metallb kasutab teenuste jaoks
$ cat ipaddress_pools.yaml apiVersion: metallb.io/v1beta1 kind: IPAddressPool metadata: name: production namespace: metallb-system spec: addresses: - 192.168.110.131-192.168.110.135 --- apiVersion: metallb.io/v1beta1 kind: L2Advertisement metadata: name: l2-advert namespace: metallb-system
Tekitamiseks sobib öelda
$ kubectl apply -f ~/metallb/ipaddress_pools.yaml ipaddresspool.metallb.io/production created l2advertisement.metallb.io/l2-advert created
Tulemust on võimalik vaadelda nt Rancher webgui keskkonnas valides
TODO
Kasulikud lisamaterjalid
NginX ingress kontroller
TODO
Kasulikud lisamaterjalid
