add integration tests

.github/workflows/integrate-cluster-scale.yaml

@@ -39,6 +39,7 @@ jobs:
           - 'test_scale_tools'
           - 'test_scale_core_tls'
           - 'test_scale_tools_tls'
+          - 'test_scale_tiproxy'
     env:
       working-directory: ${{ github.workspace }}/go/src/github.com/${{ github.repository }}
     steps:

tests/tiup-cluster/script/scale_tiproxy.sh

@@ -0,0 +1,85 @@
+#!/bin/bash
+
+set -eu
+
+function scale_tiproxy() {
+    mkdir -p ~/.tiup/bin/
+
+    version=$1
+    test_tls=$2
+    native_ssh=$3
+
+    client=""
+    if [ $native_ssh == true ]; then
+        client="--ssh=system"
+    fi
+
+    name="test_scale_tiproxy_$RANDOM"
+    if [ $test_tls = true ]; then
+        topo=./topo/full_tls.yaml
+    else
+        topo=./topo/full.yaml
+    fi
+
+    check_cert_file="ls /home/tidb/deploy/tidb-4000/tls/tiproxy-session.crt /home/tidb/deploy/tidb-4000/tls/tiproxy-session.key"
+    check_cert_config="grep -q session-token-signing-key /home/tidb/deploy/tidb-4000/conf/tidb.toml"
+
+    tiup-cluster $client --yes deploy $name $version $topo -i ~/.ssh/id_rsa
+
+    # the session certs exist
+    tiup-cluster $client exec $name -N n1 --command "$check_cert_file"
+    # the configurations are updated
+    tiup-cluster $client exec $name -N n1 --command "$check_cert_config"
+
+    tiup-cluster $client list | grep "$name"
+
+    tiup-cluster $client --yes start $name
+
+    tiup-cluster $client _test $name writable
+
+    tiup-cluster $client display $name
+
+    tiup-cluster $client --yes reload $name --skip-restart
+
+    if [ $test_tls = true ]; then
+        total_sub_one=19
+        total=20
+    else
+        total_sub_one=24
+        total=25
+    fi
+
+    # disable tiproxy
+    echo "start scale in tiproxy"
+    tiup-cluster $client --yes scale-in $name -N n1:6000
+    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
+    # the session certs doesn't exist on the new tidb
+    ! tiup-cluster $client exec $name -N n2 --command "$check_cert_file"
+    # the configurations are not updated on the new tidb
+    ! tiup-cluster $client exec $name -N n2 --command "$check_cert_config"
+
+    # enable tiproxy again
+    echo "start scale out tiproxy"
+    topo=./topo/full_scale_in_tiproxy.yaml
+    tiup-cluster $client --yes scale-out $name $topo
+    # the session certs exist on the new tidb
+    tiup-cluster $client exec $name -N n2 --command "$check_cert_file"
+    # the configurations are updated on the new tidb
+    tiup-cluster $client exec $name -N n2 --command "$check_cert_config"
+
+    # scale in tidb and scale out again
+    echo "start scale in tidb"
+    tiup-cluster $client --yes scale-in $name -N n2:4000
+    wait_instance_num_reach $name $all $native_ssh
+    echo "start scale out tidb"
+    topo=./topo/full_scale_in_tidb_2nd.yaml
+    tiup-cluster $client --yes scale-out $name $topo
+    # the session certs exist on the new tidb
+    tiup-cluster $client exec $name -N n2 --command "$check_cert_file"
+    # the configurations are updated on the new tidb
+    tiup-cluster $client exec $name -N n2 --command "$check_cert_config"
+}

tests/tiup-cluster/test_scale_tiproxy.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -eu
+
+source script/scale_tiproxy.sh
+
+echo "test scaling of tidb and tiproxy in cluster for version v8.1.0, via easy ssh"
+scale_tiproxy v8.1.0 false false