cluster: add integration tests for tiproxy

tests/tiup-cluster/script/scale_core.sh

@@ -34,9 +34,13 @@ function scale_core() {
     tiup-cluster $client --yes reload $name --skip-restart
 
     if [ $test_tls = true ]; then
-        total_sub_one=18
+        total_sub_one=19
+        total=20
+        total_add_one=21
     else
-        total_sub_one=23
+        total_sub_one=24
+        total=25
+        total_add_one=26
     fi
 
     echo "start scale in tidb"
@@ -90,6 +94,16 @@ function scale_core() {
     tiup-cluster $client exec $name -N n1 --command "grep -q n3:2379 /home/tidb/deploy/tidb-4000/scripts/run_tidb.sh"
     tiup-cluster $client exec $name -N n1 --command "grep -q n3:2379 /home/tidb/deploy/prometheus-9090/conf/prometheus.yml"
 
+    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_add_one $native_ssh
+
+    echo "start scale in tiproxy"
+    tiup-cluster $client --yes scale-in $name -N n1:6000
+    wait_instance_num_reach $name $total $native_ssh
+
+
     echo "start scale in tidb"
     tiup-cluster $client --yes scale-in $name -N n2:4000
     wait_instance_num_reach $name $total_sub_one $native_ssh

tests/tiup-cluster/script/scale_tools.sh

@@ -41,13 +41,13 @@ function scale_tools() {
     tiup-cluster $client display $name
 
     if [ $test_tls = true ]; then
-        total_sub_one=18
-        total=19
-        total_add_one=20
+        total_sub_one=19
+        total=20
+        total_add_one=21
     else
-        total_sub_one=20
-        total=21
-        total_add_one=22
+        total_sub_one=21
+        total=22
+        total_add_one=23
     fi
 
     echo "start scale in pump"

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

tests/tiup-cluster/topo/full_without_tiflash.yaml

@@ -41,6 +41,9 @@ drainer_servers:
     config:
       syncer.db-type: "file"
 
+tiproxy_servers:
+  - host: n1
+
 cdc_servers:
   - host: n3
   - host: n4