Fix postgres CI test

scripts/ci

@@ -12,6 +12,7 @@ IMAGE_TAR="${CACHE_DIR}/${IMAGE}-${IMAGE_TAG}.tar.gz"
 
 MYSQL_IMAGE="mysql:5.7"
 POSTGRES_IMAGE="postgres:9.6"
+POSTGRES_CONTAINER="test_postgres"
 
 export MYSQL_ROOT_PASSWORD="quay"
 export MYSQL_USER="quay"
@@ -110,13 +111,18 @@ postgres_ping() {
 
 
 postgres_start() {
-    docker run --net=host -d -e POSTGRES_USER -e POSTGRES_PASSWORD \
+    docker run --name="${POSTGRES_CONTAINER}" --net=host -d -e POSTGRES_USER -e POSTGRES_PASSWORD \
            -e POSTGRES_DB "${POSTGRES_IMAGE}"
 
     if ! (sleep 10 && postgres_ping); then
         echo "PostgreSQL failed to respond in time."
         exit 1
-    fi    
+    fi
+}
+
+
+postgres_init() {
+    docker exec "${POSTGRES_CONTAINER}" psql -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" -c 'CREATE EXTENSION IF NOT EXISTS pg_trgm;'
 }
 
 
@@ -129,6 +135,7 @@ postgres() {
 
     load_image
     postgres_start
+    postgres_init
     quay_run make full-db-test
 }