Resolve the problem the docker compose caused by the extensions tests (#8024)

## Problem
The merging of #7818 caused the problem with the docker-compose file.
Running docker compose is now impossible due to the unavailability of
the neon-test-extensions:latest image

## Summary of changes
Fix the problem:
Add the latest tag to the neon-test-extensions image and use the
profiles feature of the docker-compose file to avoid loading the
neon-test-extensions container if it is not needed.

.github/workflows/build_and_test.yml

@@ -1101,6 +1101,8 @@ jobs:
                                                  $repo/vm-compute-node-${version}:${{ needs.tag.outputs.build-tag }}
             done
           done
+          docker buildx imagetools create -t neondatabase/neon-test-extensions:latest \
+                                             neondatabase/neon-test-extensions:${{ needs.tag.outputs.build-tag }}
 
   trigger-custom-extensions-build-and-wait:
     needs: [ check-permissions, tag ]

docker-compose/docker-compose.yml

@@ -194,6 +194,7 @@ services:
       - compute
 
   neon-test-extensions:
+    profiles: ["test-extensions"]
     image: ${REPOSITORY:-neondatabase}/neon-test-extensions-v${PG_TEST_VERSION:-16}:${TAG:-latest}
     entrypoint:
       - "/bin/bash"

docker-compose/docker_compose_test.sh

@@ -15,7 +15,6 @@ set -eux -o pipefail
 
 COMPOSE_FILE='docker-compose.yml'
 cd $(dirname $0)
-docker compose -f $COMPOSE_FILE 
 COMPUTE_CONTAINER_NAME=docker-compose-compute-1
 TEST_CONTAINER_NAME=docker-compose-neon-test-extensions-1
 PSQL_OPTION="-h localhost -U cloud_admin -p 55433 -d postgres"
@@ -26,16 +25,16 @@ export http_proxy https_proxy
 cleanup() {
     echo "show container information"
     docker ps
-    docker compose -f $COMPOSE_FILE logs
+    docker compose --profile test-extensions -f $COMPOSE_FILE logs
     echo "stop containers..."
-    docker compose -f $COMPOSE_FILE down
+    docker compose --profile test-extensions -f $COMPOSE_FILE down
 }
 
 for pg_version in 14 15 16; do
     echo "clean up containers if exists"
     cleanup
     PG_TEST_VERSION=$(($pg_version < 16 ? 16 : $pg_version))
-    PG_VERSION=$pg_version PG_TEST_VERSION=$PG_TEST_VERSION docker compose -f $COMPOSE_FILE up --build -d
+    PG_VERSION=$pg_version PG_TEST_VERSION=$PG_TEST_VERSION docker compose --profile test-extensions -f $COMPOSE_FILE up --build -d
 
     echo "wait until the compute is ready. timeout after 60s. "
     cnt=0
@@ -47,7 +46,7 @@ for pg_version in 14 15 16; do
             cleanup
             exit 1
         fi
-        if docker compose -f $COMPOSE_FILE logs "compute_is_ready" | grep -q "accepting connections"; then
+        if docker compose --profile test-extensions -f $COMPOSE_FILE logs "compute_is_ready" | grep -q "accepting connections"; then
             echo "OK. The compute is ready to connect."
             echo "execute simple queries."
             docker exec $COMPUTE_CONTAINER_NAME /bin/bash -c "psql $PSQL_OPTION"