# 安装时需要确保 K8S 集群正在运行,并且挂载了 GlusterFS 集群文件系统
# 相关文档: K8S.md、GlusterFS.md
# 在各个主机检查 GlusterFS 集群文件系统
df -h /mnt/gluster-gv0
# 正常输出
Filesystem Size Used Avail Use% Mounted on
gfs:/gv0 48T 835G 48T 2% /mnt/gluster-gv0
以下操作均在 K8S 第一个节点,即 Master 节点 192.168.1.21 执行
# 准备 Fiber 应用,以 Winter-fiber 为例,复制到 /mnt/gluster-gv0/k8s/fiber 目录下
# 如果访问 GitHub.com 需要代理在此设置
# export http_proxy=http://192.168.1.109:3128/
# export https_proxy=http://192.168.1.109:3128/
(
if [ ! -d ~/Winter-fiber ]; then cd ~/ ; git clone https://github.com/AndyInAi/Winter-fiber.git; fi ;
chmod +x ~/Winter-fiber/Winter-fiber
mkdir -p /mnt/gluster-gv0/k8s/fiber ;
cp -f -r ~/Winter-fiber /mnt/gluster-gv0/k8s/fiber/ ;
)
# 生成启动脚本
(
mkdir -p /mnt/gluster-gv0/k8s/fiber
echo '#!/bin/bash
cp -f -r /mnt/fiber/Winter-fiber ~/
cd ~/Winter-fiber
chmod +x Winter-fiber
./Winter-fiber
# sleep 88888
'> /mnt/gluster-gv0/k8s/fiber/start
chmod +x /mnt/gluster-gv0/k8s/fiber/start
)
# 副本:8 个
# 端口:30020
(
mkdir -p /mnt/gluster-gv0/k8s/fiber;
kubectl get namespace winter > /dev/null 2>&1 || kubectl create namespace winter;
echo '
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: fiber
name: fiber
namespace: winter
spec:
replicas: 8
selector:
matchLabels:
app: fiber
template:
metadata:
labels:
app: fiber
spec:
volumes:
- name: k8s
hostPath:
path: /mnt/gluster-gv0/k8s
containers:
- image: ubuntu
imagePullPolicy: IfNotPresent
name: fiber
volumeMounts:
- name: k8s
mountPath: /mnt
command: ["/mnt/fiber/start"]
' > ~/fiber.yml;
echo '
apiVersion: v1
kind: Service
metadata:
name: fiber
namespace: winter
spec:
selector:
app: fiber
type: LoadBalancer
ports:
- nodePort: 30020
port: 8080
protocol: TCP
targetPort: 8080
sessionAffinity: ClientIP
' > fiber-port.yml;
sed -i 's/\t/ /g' ~/fiber.yml;
sed -i 's/\t/ /g' ~/fiber-port.yml;
kubectl apply -f ~/fiber.yml;
kubectl apply -f ~/fiber-port.yml;
)
kubectl get pod,svc,node -n winter -o wide
curl http://192.168.1.22:30020/
curl http://192.168.1.23:30020/
curl http://192.168.1.24:30020/
# 使用浏览器打开
http://192.168.1.24:30020/
http://192.168.1.23:30020/
http://192.168.1.22:30020/
# 静态扩缩,指定 pod 数量,如 12
kubectl scale --replicas=12 -f ~/fiber.yml
# 动态扩缩,指定最小和最大 pod 数量
kubectl autoscale --max=16 --min=4 -f ~/fiber.yml