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4d79e4e00a
Move the copy/paste instructions to a separate document Signed-off-by: Serge Logvinov <serge.logvinov@sinextra.dev>
83 lines
1.9 KiB
Markdown
83 lines
1.9 KiB
Markdown
# Loadbalancer on top of the Proxmox cluster
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Set up a load balancer to distribute traffic across multiple proxmox nodes.
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We use the [haproxy](https://hub.docker.com/_/haproxy) image to create a simple load balancer on top of the proxmox cluster.
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First, we need to create a headless service and set endpoints.
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```yaml
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# proxmox-service.yaml
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---
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apiVersion: v1
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kind: Service
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metadata:
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name: proxmox
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namespace: kube-system
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spec:
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clusterIP: None
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ports:
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- name: https
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protocol: TCP
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port: 8006
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targetPort: 8006
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---
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apiVersion: v1
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kind: Endpoints
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metadata:
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name: proxmox
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namespace: kube-system
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subsets:
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- addresses:
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- ip: 192.168.0.1
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- ip: 192.168.0.2
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ports:
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- port: 8006
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```
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Apply the configuration to the cluster.
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```bash
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kubectl apply -f proxmox-service.yaml
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```
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Second, we need to deploy proxmox CCM with sidecar load balancer.
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Haproxy will resolve the `proxmox.kube-system.svc.cluster.local` service and uses IPs from the endpoints to distribute traffic.
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Proxmox CCM will use the `proxmox.domain.com` domain to connect to the proxmox cluster which is resolved to the load balancer IP (127.0.0.1).
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```yaml
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# CCM helm chart values
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config:
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clusters:
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- region: cluster
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url: https://proxmox.domain.com:8006/api2/json
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insecure: true
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token_id: kubernetes@pve!ccm
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token_secret: 11111111-1111-1111-1111-111111111111
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hostAliases:
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- ip: 127.0.0.1
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hostnames:
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- proxmox.domain.com
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initContainers:
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- name: loadbalancer
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restartPolicy: Always
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image: ghcr.io/sergelogvinov/haproxy:2.8.6-alpine3.19
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imagePullPolicy: IfNotPresent
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env:
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- name: SVC
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value: proxmox.kube-system.svc.cluster.local
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- name: PORT
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value: "8006"
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securityContext:
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runAsUser: 99
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runAsGroup: 99
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resources:
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limits:
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cpu: 50m
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memory: 64Mi
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requests:
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cpu: 50m
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memory: 32Mi
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```
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