啓動配置用戶數據shell腳本不從CloudForms運行

Question

我試圖從AWS Cloudformation模板中的啓動配置的用戶數據運行shell腳本。我用一些腳本創建了AMI。

這裏是例如，從LaunchConfiguration的Cloudformation模板：

"ProcessLC": { 
     "Type" : "AWS::AutoScaling::LaunchConfiguration", 
     "Properties" : { 
      "ImageId": {"Ref" : "GeneralAMI"}, 
      "InstanceType" : "t2.medium", 
      "SecurityGroups" : [{"Ref": "SecurityGroup"}], 
      "KeyName" : {"Ref": "KeyPair"}, 
      "UserData": {"Fn::Base64": {"Fn::Join": ["", [ 
       {"Fn::Join": ["", ["Env=",{"Ref": "Env"}," \n"]]}, 
       {"Fn::Join": ["", ["DBConn=", {"Ref": "Database"}," \n"]]}, 
       {"Fn::Join": ["", ["DBEngine=", {"Ref": "Metabase"}," \n"]]}, 
       "#!/bin/bash\n", 
       "cd /project/\n", 
       "./stop.sh\n", 
       "./vpcAssignIP.sh\n" 
       ] 
      ] 
      } 
     } 
     } 
    } 

它不運行（正如我在日誌「/var/log/cloud-init.log」見），當我創建堆棧。 我做錯了什麼？

謝謝！

Answer 1

把這條線放在最上面，而不是更下來： 「＃！/ bin/bash \ n」。該行告訴它將整個腳本處理爲bash命令。它必須是第一行。 （所以，在你的加入，如果你把它放在「」，而不是加入後，你應該是不錯的。）

編輯： 有了您的加入，這應該工作：

"UserData": {"Fn::Base64": {"Fn::Join": ["", [ 
       "#!/bin/bash\n", 
       {"Fn::Join": ["", ["Env=",{"Ref": "Env"}," \n"]]}, 
       {"Fn::Join": ["", ["DBConn=", {"Ref": "Database"}," \n"]]}, 
       {"Fn::Join": ["", ["DBEngine=", {"Ref": "Metabase"}," \n"]]}, 
       "cd /project/\n", 
       "./stop.sh\n", 
       "./vpcAssignIP.sh\n" 
       ]