add etcd config flags

example/config.yml

@@ -30,6 +30,14 @@ CLUSTER_NAME: "cluster1"
 CONTEXT_NAME: "context-{{ CLUSTER_NAME }}"
 
 
+############################
+# role:etcd
+############################
+# 设置不同的wal目录，可以避免磁盘io竞争，提高性能
+ETCD_DATA_DIR: "/var/lib/etcd"
+ETCD_WAL_DIR: ""
+
+
 ############################
 # role:runtime [containerd,docker]
 ############################

roles/cluster-addon/templates/metrics-server/components.yaml

@@ -39,7 +39,7 @@ subjects:
   name: metrics-server
   namespace: kube-system
 ---
-apiVersion: apiregistration.k8s.io/v1beta1
+apiVersion: apiregistration.k8s.io/v1
 kind: APIService
 metadata:
   name: v1beta1.metrics.k8s.io

roles/etcd/templates/etcd.service.j2

@@ -23,11 +23,12 @@ ExecStart={{ bin_dir }}/etcd \
   --initial-cluster-token=etcd-cluster-0 \
   --initial-cluster={{ ETCD_NODES }} \
   --initial-cluster-state={{ CLUSTER_STATE }} \
-  --data-dir=/var/lib/etcd \
+  --data-dir={{ ETCD_DATA_DIR }} \
+  --wal-dir={{ ETCD_WAL_DIR }} \
   --snapshot-count=50000 \
   --auto-compaction-retention=1 \
-  --max-request-bytes=10485760 \
   --auto-compaction-mode=periodic \
+  --max-request-bytes=10485760 \
   --quota-backend-bytes=8589934592
 Restart=always
 RestartSec=15