Ansible，从Docker容器运行命令时，mysql连接被拒绝
我正在使用docker-compose来运行Laravel项目，并且希望使用它来部署，并简化本地环境的configuration过程
下面是我使用的一个完整的剧本，以及导致问题的原因：
# run docker-compose - name: Run docker containers shell: docker-compose -f {{compose_file}} up -d - name: Docker ps shell: docker-compose -f {{compose_file}} ps register: lists - name: Print docker ps debug: msg="{{lists.stdout_lines}}" # run migrations - name: Run migrations shell: docker-compose -f {{compose_file}} exec -T --user {{wwwdata}} workspace sh -c 'cd {{remote_basedir}} && php artisan migrate --seed' 输出：
TASK [Run docker containers] ************************************************************************* changed: [localhost] TASK [Docker ps] ************************************************************************* changed: [localhost] TASK [Print docker ps] ************************************************************************* ok: [localhost] => { "msg": [ " Name Command State Ports ", "------------------------------------------------------------------------------------------------------", "docker_applications_1 /true Exit 0 ", "docker_mailcatcher_1 mailcatcher --foreground - ... Up 25/tcp, 0.0.0.0:1080->80/tcp ", "docker_mysql_1 docker-entrypoint.sh mysqld Up 0.0.0.0:33066->3306/tcp ", "docker_nginx_1 nginx -g daemon off; Exit 1 ", "docker_php_1 docker-php-entrypoint php- ... Up 0.0.0.0:7778->7778/tcp, 9000/tcp ", "docker_redis_cache_1 docker-entrypoint.sh redis ... Up 6379/tcp, 0.0.0.0:6380->6380/tcp ", "docker_redis_disk_1 docker-entrypoint.sh redis ... Up 0.0.0.0:6379->6379/tcp ", "docker_workspace_1 docker-php-entrypoint php- ... Up 9000/tcp " ] } TASK [Run migrations] ************************************************************************************************************************************************************************************************************** fatal: [localhost]: FAILED! => {"changed": true, "cmd": "docker-compose -f /var/www/project/docker/docker-compose.yml exec -T --user www-data workspace sh -c 'cd /var/www/vhosts/project && php artisan migrate --seed'", "delta": "0:00:01.333487", "end": "2017-11-01 17:13:08.772027", "failed": true, "msg": "non-zero return code", "rc": 1, "start": "2017-11-01 17:13:07.438540", "stderr": "", "stderr_lines": [], "stdout": "\n \n [Illuminate\\Database\\QueryException] \n SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_s \n chema.tables where table_schema = database and table_name = migrations) \n \n\n \n [PDOException] \n SQLSTATE[HY000] [2002] Connection refused \n ", "stdout_lines": ["", " ", " [Illuminate\\Database\\QueryException] ", " SQLSTATE[HY000] [2002] Connection refused (SQL: select * from information_s ", " chema.tables where table_schema = database and table_name = migrations) ", " ", "", " ", " [PDOException] ", " SQLSTATE[HY000] [2002] Connection refused ", " "]} to retry, use: --limit @/var/www/project/ansible_playbooks/install.retry PLAY RECAP ************************************************************************************************************************************************************************************************************************* localhost : ok=12 changed=11 unreachable=0 failed=1
正如你可以看到，当我运行docker-compose -f /var/www/adgate/project/docker/docker-compose.yml exec -T --user www-data rtb_workspace sh -c 'cd /var/www/vhosts/project && php artisan migrate --seed'与错误Connection refused但容器存在，当我在terminal中手动运行相同的命令都工作正常。
谢谢你的回应！
感谢Tarun Lalwani，我开始转向正确的方式，而不是使用他提出的bash脚本，我以这种方式
- name: wait for mysql container retries: 5 delay: 5 shell: docker-compose -f {{compose_file}} exec -T mysql sh -c 'mysql --user=db_user --password=secret -e "SHOW DATABASES;" | grep -c database' register: mysql_alive until: mysql_alive.rc == 0