metallb.md

MetalLB 安装

1. 配置 /etc/kubez/globals.yml, 开启metallb选项（默认关闭）

   enable_metallb: "yes"

2. 可自定义命名空间（可选）

   metallb_namespace: "{{ kubez_namespace }}"
   
   # 可修改为自定义命名空间例如
   
   metallb_namespace: "metallb-system"

3. 执行如下命令完成 metallb 的安装.

   # multinode
   kubez-ansible -i multinode apply
   
   # all-in-one
   kubez-ansible apply

4. 部署完验证

   pixiu-system   metallb-controller-64766bb9f9-qq88v         1/1     Running                 0              33m
   pixiu-system   metallb-speaker-tv6z2                       1/1     Running                 0              33m

5. 创建地址池（官网提供的yaml文件，用来创建可分配的ip地址池）（ 官网地址 https://metallb.universe.tf/configuration/ ）

   # The address-pools lists the IP addresses that MetalLB is
   # allowed to allocate. You can have as many
   # address pools as you want.
   apiVersion: metallb.io/v1beta1
   kind: IPAddressPool
   metadata:
       # A name for the address pool. Services can request allocation
       # from a specific address pool using this name.
       name: first-pool
       namespace: metallb-system
   spec:
       # A list of IP address ranges over which MetalLB has
       # authority. You can list multiple ranges in a single pool, they
       # will all share the same settings. Each range can be either a
       # CIDR prefix, or an explicit start-end range of IPs.
   addresses:
   - 192.168.10.0/24
   - 192.168.9.1-192.168.9.5
   - fc00:f853:0ccd:e799::/124
   注：
   此文件只做展示，格式不对不可直接复制。
   地址池的命名空间和 matellb 的需保持一致。

6. 将 servcie 修改为 lb 模式

   # 查看原有的 service
   pixiu-system   grafana                              ClusterIP      10.254.69.87     <none>        80/TCP                       27s
   # 将 type 字段修改为 LoadBalancer
   sessionAffinity: None
   type: ClusterIP
   # 修改后
   sessionAffinity: None
   type: LoadBalancer

7. 修改后查看 service

   pixiu-system   grafana                              LoadBalancer   10.254.69.87     192.168.10.1   80:30325/TCP                 20m