Python操作docker里面的redis

使用操作命令借助subprocess模块进行操作

 1 ```python
 2 #encoding:utf-8
 3 import subprocess
 4 def cmd(command):
 5     subp = subprocess.Popen(command,shell=True,stdout=subprocess.PIPE,stderr=subprocess.PIPE,encoding="utf-8")
 6     subp.wait(2)
 7     if subp.poll() == 0:
 8         return subp.communicate()
 9     else:
10         return None
11 ```

获取redis键所对应的值

1 ```python
2 def get_output(command):
3     subp = subprocess.getoutput(command)
4     return subp
5 ```

flask框架获取docker里面redis中的键值对

 1 ```python
 2 @ui_case_set.route("/get_code", methods=["GET"])
 3 @allow_cross_domain
 4 def get_code():
 5     set_id = request.values.get("id")
 6     if not set_id:
 7         return response_fail(msg="缺少参数用例集id")
 8     key_name = "key" + str(set_id)
 9     value_name = get_output("docker exec {0} redis-cli get {1}".format(DockerConfig.container_redis_name, key_name))
10     if value_name:
11         return response_fail(msg="此测试集正被{}编辑!".format("金刚"))
12     else:
13         return response_success(msg="可以进行编辑!")
14 ```

flask框架增加及删除docker里面redis中的键值对

 1 ```python
 2 @ui_case_set.route("/time_limit", methods=["POST"])
 3 @allow_cross_domain
 4 def set_time():
 5     # lock:为1：上锁， 为0时: 解锁
 6     set_id = request.json.get("id")
 7     locak = request.json.get("lock")
 8     # if not all([set_id, locak]):
 9     #     return response_fail(msg="参数不足")
10     key_name = "key" + str(set_id)
11     if locak == 1:
12         value_name = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(time.time()))
13         cmd("docker exec {0} redis-cli setex {1} 300 '{2}'".format(DockerConfig.container_redis_name, key_name, value_name))
14         return response_success(content={"lock_status": 1}, msg="测试集{}上锁成功".format(set_id))
15     else:
16         cmd("docker exec {0} redis-cli del {1}".format(DockerConfig.container_redis_name, key_name))
17         return response_success(content={"lock_status": 0}, msg="测试集{}解锁成功".format(set_id))
18 
19 ```

注意点：使用操作命令时不要带 “-it",如(docker exec -it ui_redis(docker容器名称) redis-cli set key vale) 否则接口在前台运行方式下是可以正常访问的，在python程序后台运行下运行失败。因为指定 -it 是需要开启一个交互模式的终端。

Python操作docker里面的redis

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