cluster: add integration tests for tiproxy

Signed-off-by: xhe <[email protected]>

Author: xhebox

tests/tiup-cluster/script/scale_core.sh

@@ -99,6 +99,15 @@ function scale_core() {
     # after all components on the node were scale-ined, the SSH public is automatically deleted
     ! ssh -o "StrictHostKeyChecking=no "-o "PasswordAuthentication=no" -i ~/.tiup/storage/cluster/$name/ssh/id_rsa tidb@n2 "ls"
 
+    echo "start scale out tiproxy"
+    topo=./topo/full_scale_in_tiproxy.yaml
+    tiup-cluster $client --yes scale-out $name $topo
+    wait_instance_num_reach $name $total_sub_one $native_ssh
+
+    echo "start scale in tiproxy"
+    tiup-cluster $client --yes scale-in $name -N n2:6000
+    wait_instance_num_reach $name $total_sub_one $native_ssh
+
     echo "start scale out tidb"
     topo=./topo/full_scale_in_tidb_2nd.yaml
     tiup-cluster $client --yes scale-out $name $topo

tests/tiup-cluster/topo/full.yaml

@@ -36,6 +36,9 @@ tiflash_servers:
     data_dir: "data1,/data/tiflash-data"
 #   - host: n4
 #   - host: n5
+#
+tiproxy_servers:
+  - host: n1
 
 pump_servers:
   - host: n3

tests/tiup-cluster/topo/full_scale_in_tiproxy.yaml

@@ -0,0 +1,2 @@
+tiproxy_servers:
+  - host: n2

tests/tiup-cluster/topo/full_tls.yaml

@@ -35,6 +35,9 @@ pump_servers:
   - host: n4
   - host: n5
 
+tiproxy_servers:
+  - host: n1
+
 drainer_servers:
   - host: n1
     data_dir: /home/tidb/data/drainer-8249/data