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The sample Python script below will allow you to migrate credentials from MQTT Distributor to Chariot at scale using the MQTT Distributor API and the Chariot REST API.
The script is designed to run from the Script Console in the Ignition instance where MQTT Distributor is installed and will:
In Ignition Designer, navigate to Tools > Script Console
Copy the script below and uncomment lines 21 and 24
Edit lines 21 and 24 for your deployment:
Select the Execute button
import requests import base64 #HTTP call method def httpCall(method,url,headers,data): if method == "POST": resp = requests.post(url, headers=headers, data=data) if method == "GET": resp = requests.get(url, headers=headers, data=data) if method == "PUT": resp = requests.put(url, headers=headers, data=data) #check for failures on httpCall if resp.status_code != 200: print "HTTPCall error code: " + str(resp.json()) print "HTTPCall error detail: " + data return resp.json() #Set URL for you Chariot installation #chariotUrl = "http://localhost:8080" #Create Chariot username:password dictionary for your MQTT Distributor users #userpassword = {"admin":"password","test2":"password2","test3":"password3"} ############################################################################# headers = {} #Accept Chariot EULA url = chariotUrl + "/eula" headers["accept"] = "application/json;api-version=1.0" headers["content-type"] = "application/json" data = "{\"isAccepted\": true}" http_response = httpCall("POST",url,headers,data) #Chariot login using admin user to get bearer token valid for 90 minutes url = chariotUrl + "/login" headers["accept"] = "application/json;api-version=1.0" headers["Authorization"] = "Basic " + base64.b64encode("admin:password") data = {} http_response = httpCall("POST",url,headers,data) accessToken = http_response["access_token"] #Read Distributor users users = system.cirruslink.distributor.readConfig("Users") #Create new format Access Control Lists (ACLs) for i in range(len(users)): subscribeList = "" publishList = "" userName = users[i]["Username"] password = list(userpassword.values())[list(userpassword.keys()).index(userName)] acls = users[i]["ACLs"] acl_list = acls.split(",") for i in range(len(acl_list)): #check for leading spaces if acl_list[i][:1] == " ": acl_list[i] = acl_list[i][1:len(acl_list[i])] #check for R subscriptions if acl_list[i][:2] == "R ": subscription = acl_list[i][2:len(acl_list[i])] subscription = "\"" + subscription + "\"" subscribeList = subscribeList + subscription + "," #check for W subscriptions if acl_list[i][:2] == "W ": publish = acl_list[i][2:len(acl_list[i])] publish = "\"" + publish + "\"" publishList = publishList + publish + "," #check for RW subscription if acl_list[i][:2] == "RW": subscription = acl_list[i][3:len(acl_list[i])] subscription = "\"" + subscription + "\"" subscribeList = subscribeList + subscription + "," publish = acl_list[i][3:len(acl_list[i])] publish = "\"" + publish + "\"" publishList = publishList + publish + "," #create Chariot user url = chariotUrl + "/mqttusers" headers["accept"] = "application/json;api-version=1.0" headers["content-type"] = "application/json" headers["Authorization"] = "Bearer " + accessToken data = "[{\"username\":\"" + userName + "\"," + "\"password\":\"" + password + "\"," + "\"acl\":{\"publishTopics\":[" + publishList[:-1] +"],\"subscribeTopics\":[" + subscribeList[:-1] + "]}}]" http_response = httpCall("POST",url,headers,data) #Read Chariot MQtt Users url = chariotUrl + "/mqttusers" headers["accept"] = "application/json;api-version=1.0" headers["Authorization"] = "Bearer " + accessToken data = {} chariotMqttUsers = httpCall("GET",url,headers,data) print "Chariot MQTT Credentials: " + str(chariotMqttUsers) #############################################################################