我正在尝试使用Linux crontab执行python脚本。我想每10分钟运行一次此脚本。
我找到了很多解决方案,但都无济于事。例如:在/etc/cron.d中编辑anacron或使用crontab -e。我将此行放在文件的末尾,但它没有任何改变。我需要重启任何服务吗?
crontab -e
*/2 * * * * /usr/bin/python /home/souza/Documets/Listener/listener.py
我必须编辑哪个文件来配置它?
提前致谢
这是脚本。
#!/usr/bin/python # -*- coding: iso-8859-15 -*- import json import os import pycurl import sys import cStringIO if __name__ == "__main__": name_server_standart = "Server created by script %d" json_file_standart = "{ \"server\" : { \"name\" : \"%s\", \"imageRef\" : \"%s\", \"flavorRef\" : \"%s\" } }" curl_auth_token = pycurl.Curl() gettoken = cStringIO.StringIO() curl_auth_token.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1") curl_auth_token.setopt(pycurl.POST, 1) curl_auth_token.setopt(pycurl.HTTPHEADER, ["X-Auth-User: cpca", "X-Auth-Key: 438ac2d9-689f-4c50-9d00-c2883cfd38d0"]) curl_auth_token.setopt(pycurl.HEADERFUNCTION, gettoken.write) curl_auth_token.perform() chg = gettoken.getvalue() auth_token = chg[chg.find("X-Auth-Token: ")+len("X-Auth-Token: ") : chg.find("X-Server-Management-Url:")-1] token = "X-Auth-Token: {0}".format(auth_token) curl_auth_token.close() #---------------------------- getter = cStringIO.StringIO() curl_hab_image = pycurl.Curl() curl_hab_image.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/images/7") curl_hab_image.setopt(pycurl.HTTPGET, 1) #tirei essa linha e funcionou, nao sei porque curl_hab_image.setopt(pycurl.HTTPHEADER, [token]) curl_hab_image.setopt(pycurl.WRITEFUNCTION, getter.write) #curl_list.setopt(pycurl.VERBOSE, 1) curl_hab_image.perform() curl_hab_image.close() getter = cStringIO.StringIO() curl_list = pycurl.Curl() curl_list.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/servers/detail") curl_list.setopt(pycurl.HTTPGET, 1) #tirei essa linha e funcionou, nao sei porque curl_list.setopt(pycurl.HTTPHEADER, [token]) curl_list.setopt(pycurl.WRITEFUNCTION, getter.write) #curl_list.setopt(pycurl.VERBOSE, 1) curl_list.perform() curl_list.close() #---------------------------- resp = getter.getvalue() con = int(resp.count("status")) s = json.loads(resp) lst = [] for i in range(con): lst.append(s['servers'][i]['status']) for j in range(len(lst)): actual = lst.pop() print actual if actual != "ACTIVE" and actual != "BUILD" and actual != "REBOOT" and actual != "RESIZE": print "Entra no If" f = file('counter', 'r+w') num = 0 for line in f: num = line content = int(num)+1 ins = str(content) f.seek(0) f.write(ins) f.truncate() f.close() print "Contador" json_file = file('json_file_create_server.json','r+w') name_server_final = name_server_standart % content path_to_image = "http://192.168.100.241:8774/v1.1/nuvemcpca/images/7" path_to_flavor = "http://192.168.100.241:8774/v1.1/nuvemcpca/flavors/1" new_json_file_content = json_file_standart % (name_server_final, path_to_image, path_to_flavor) json_file.seek(0) json_file.write(new_json_file_content) json_file.truncate() json_file.close() print "Json File" fil = file("json_file_create_server.json") siz = os.path.getsize("json_file_create_server.json") cont_size = "Content-Length: %d" % siz cont_type = "Content-Type: application/json" accept = "Accept: application/json" c_create_servers = pycurl.Curl() logger = cStringIO.StringIO() c_create_servers.setopt(pycurl.URL, "http://192.168.100.241:8774/v1.1/nuvemcpca/servers") c_create_servers.setopt(pycurl.HTTPHEADER, [token, cont_type, accept, cont_size]) c_create_servers.setopt(pycurl.POST, 1) c_create_servers.setopt(pycurl.INFILE, fil) c_create_servers.setopt(pycurl.INFILESIZE, siz) c_create_servers.setopt(pycurl.WRITEFUNCTION, logger.write) print "Teste perform" c_create_servers.perform() print logger.getvalue() c_create_servers.close()
只需使用crontab -e并按照此处的教程操作即可。
请参阅第3点,以获取有关如何指定频率的指南。
根据您的要求,它应该有效地是:
*/10 * * * * /usr/bin/python script.py