keyvault-acmebot: Unable to connect to a 3rd party provider that supports ACME

Issue description

We are trying to connect to Entrust’s ACME API. We have obtained EAB credentials from the provider and we have been able to verify the API works as expected using certbot. As ZeroSSL is supported by vault-acmebot, this provider should work as well.

The README didn’t provide any information on how to use ZeroSSL, so we did a little digging to understand how EAB support worked. When trying to connect to the provider we are adding these configuration parameters:

"Acmebot:Endpoint": "https://acme.entrust.net/acme2/directory"
"Acmebot:ExternalAccountBinding:KeyId": "XXXXXXXX"
"Acmebot:ExternalAccountBinding:HmacKey": "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"

However it seems we hit an error inside CreateClientAsync() in line 60 of AcmeProtocolClientFactory.cs. The full error trace is included below, maybe we’re not providing all of the necessary parameters?

Any help will be greatly appreciated!

To Reproduce

Steps to reproduce the behavior:

1. Deploy the function (using default settings)
2. Update the parameters as highlighted above
3. Restart the function
4. Create a new certificate using the web UI

Environment (please complete the following information):

• Certificate Type: Sub-domain
• Certificate Deploy Target: Azure Application Gateway

Additional context

Error trace:

18deb201ac0a49f1ae507d1127a554e1: Function 'IssueCertificate (Orchestrator)' failed with an error. Reason: Microsoft.Azure.WebJobs.Extensions.DurableTask.FunctionFailedException: The activity function 'Order' failed: "Failed to deserialize exception from TaskActivity: {"$type":"ACMESharp.Protocol.AcmeProtocolException, ACMESharp","ProblemType":0,"ProblemTypeRaw":null,"ProblemDetail":null,"ProblemStatus":-1,"Message":"Unexpected response status code [InternalServerError] for [CreateAccountAsync]","Data":{"$type":"System.Collections.ListDictionaryInternal, System.Private.CoreLib"},"InnerException":null,"HelpLink":null,"Source":"ACMESharp","HResult":-2146233088,"StackTrace":"   at ACMESharp.Protocol.AcmeProtocolClient.SendAcmeAsync(Uri uri, HttpMethod method, Object message, HttpStatusCode[] expectedStatuses, Boolean skipNonce, Boolean skipSigning, Boolean includePublicKey, CancellationToken cancel, String opName)\r\n   at ACMESharp.Protocol.AcmeProtocolClient.CreateAccountAsync(IEnumerable`1 contacts, Boolean termsOfServiceAgreed, Object externalAccountBinding, Boolean throwOnExistingAccount, CancellationToken cancel)\r\n   at KeyVault.Acmebot.Internal.AcmeProtocolClientFactory.CreateClientAsync() in /home/runner/work/keyvault-acmebot/keyvault-acmebot/KeyVault.Acmebot/Internal/AcmeProtocolClientFactory.cs:line 62\r\n   at KeyVault.Acmebot.Functions.SharedActivity.Order(IReadOnlyList`1 dnsNames) in /home/runner/work/keyvault-acmebot/keyvault-acmebot/KeyVault.Acmebot/Functions/SharedActivity.cs:line 145\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2.InvokeAsync(Object instance, Object[] arguments) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionInvoker.cs:line 52\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.InvokeWithTimeoutAsync(IFunctionInvoker invoker, ParameterHelper parameterHelper, CancellationTokenSource timeoutTokenSource, CancellationTokenSource functionCancellationTokenSource, Boolean throwOnTimeout, TimeSpan timerInterval, IFunctionInstance instance) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 581\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithWatchersAsync(IFunctionInstanceEx instance, ParameterHelper parameterHelper, ILogger logger, CancellationTokenSource functionCancellationTokenSource) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 527\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithLoggingAsync(IFunctionInstanceEx instance, FunctionStartedMessage message, FunctionInstanceLogEntry instanceLogEntry, ParameterHelper parameterHelper, ILogger logger, CancellationToken cancellationToken) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 306"}". See the function execution logs for additional details.
 ---> DurableTask.Core.Exceptions.TaskFailedExceptionDeserializationException: Failed to deserialize exception from TaskActivity: {"$type":"ACMESharp.Protocol.AcmeProtocolException, ACMESharp","ProblemType":0,"ProblemTypeRaw":null,"ProblemDetail":null,"ProblemStatus":-1,"Message":"Unexpected response status code [InternalServerError] for [CreateAccountAsync]","Data":{"$type":"System.Collections.ListDictionaryInternal, System.Private.CoreLib"},"InnerException":null,"HelpLink":null,"Source":"ACMESharp","HResult":-2146233088,"StackTrace":"   at ACMESharp.Protocol.AcmeProtocolClient.SendAcmeAsync(Uri uri, HttpMethod method, Object message, HttpStatusCode[] expectedStatuses, Boolean skipNonce, Boolean skipSigning, Boolean includePublicKey, CancellationToken cancel, String opName)\r\n   at ACMESharp.Protocol.AcmeProtocolClient.CreateAccountAsync(IEnumerable`1 contacts, Boolean termsOfServiceAgreed, Object externalAccountBinding, Boolean throwOnExistingAccount, CancellationToken cancel)\r\n   at KeyVault.Acmebot.Internal.AcmeProtocolClientFactory.CreateClientAsync() in /home/runner/work/keyvault-acmebot/keyvault-acmebot/KeyVault.Acmebot/Internal/AcmeProtocolClientFactory.cs:line 62\r\n   at KeyVault.Acmebot.Functions.SharedActivity.Order(IReadOnlyList`1 dnsNames) in /home/runner/work/keyvault-acmebot/keyvault-acmebot/KeyVault.Acmebot/Functions/SharedActivity.cs:line 145\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2.InvokeAsync(Object instance, Object[] arguments) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionInvoker.cs:line 52\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.InvokeWithTimeoutAsync(IFunctionInvoker invoker, ParameterHelper parameterHelper, CancellationTokenSource timeoutTokenSource, CancellationTokenSource functionCancellationTokenSource, Boolean throwOnTimeout, TimeSpan timerInterval, IFunctionInstance instance) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 581\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithWatchersAsync(IFunctionInstanceEx instance, ParameterHelper parameterHelper, ILogger logger, CancellationTokenSource functionCancellationTokenSource) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 527\r\n   at Microsoft.Azure.WebJobs.Host.Executors.FunctionExecutor.ExecuteWithLoggingAsync(IFunctionInstanceEx instance, FunctionStartedMessage message, FunctionInstanceLogEntry instanceLogEntry, ParameterHelper parameterHelper, ILogger logger, CancellationToken cancellationToken) in D:\\a\\_work\\1\\s\\src\\Microsoft.Azure.WebJobs.Host\\Executors\\FunctionExecutor.cs:line 306"}
 ---> Newtonsoft.Json.JsonSerializationException: Unable to find a constructor to use for type ACMESharp.Protocol.AcmeProtocolException. A class should either have a default constructor, one constructor with arguments or a constructor marked with the JsonConstructor attribute. Path 'ProblemType', line 1, position 77.
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject(JsonReader reader, JsonObjectContract objectContract, JsonProperty containerMember, JsonProperty containerProperty, String id, Boolean& createdFromNonDefaultCreator)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal(JsonReader reader, Type objectType, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerMember, Object existingValue)
   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize(JsonReader reader, Type objectType, Boolean checkAdditionalContent)
   at Newtonsoft.Json.JsonSerializer.DeserializeInternal(JsonReader reader, Type objectType)
   at DurableTask.Core.Serializing.JsonDataConverter.Deserialize(String data, Type objectType) in /_/src/DurableTask.Core/Serializing/JsonDataConverter.cs:line 110
   at DurableTask.Core.Serializing.DataConverter.Deserialize[T](String data) in /_/src/DurableTask.Core/Serializing/DataConverter.cs:line 54
   at DurableTask.Core.Common.Utils.RetrieveCause(String details, DataConverter converter) in /_/src/DurableTask.Core/Common/Utils.cs:line 511
   --- End of inner exception stack trace ---
   --- End of inner exception stack trace ---
   at Microsoft.Azure.WebJobs.Extensions.DurableTask.DurableOrchestrationContext.CallDurableTaskFunctionAsync[TResult](String functionName, FunctionType functionType, Boolean oneWay, String instanceId, String operation, RetryOptions retryOptions, Object input, Nullable`1 scheduledTimeUtc) in D:\a\_work\1\s\src\WebJobs.Extensions.DurableTask\ContextImplementations\DurableOrchestrationContext.cs:line 751
   at KeyVault.Acmebot.Functions.SharedOrchestrator.IssueCertificate(IDurableOrchestrationContext context) in /home/runner/work/keyvault-acmebot/keyvault-acmebot/KeyVault.Acmebot/Functions/SharedOrchestrator.cs:line 26
   at Microsoft.Azure.WebJobs.Host.Executors.VoidTaskMethodInvoker`2.InvokeAsync(TReflected instance, Object[] arguments) in D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\VoidTaskMethodInvoker.cs:line 20
   at Microsoft.Azure.WebJobs.Host.Executors.FunctionInvoker`2.InvokeAsync(Object instance, Object[] arguments) in D:\a\_work\1\s\src\Microsoft.Azure.WebJobs.Host\Executors\FunctionInvoker.cs:line 52
   at Microsoft.Azure.WebJobs.Extensions.DurableTask.TaskOrchestrationShim.InvokeUserCodeAndHandleResults(RegisteredFunctionInfo orchestratorInfo, OrchestrationContext innerContext) in D:\a\_work\1\s\src\WebJobs.Extensions.DurableTask\Listener\TaskOrchestrationShim.cs:line 150. IsReplay: False. State: Failed. HubName: funcdfoentrusti5at. AppName: func-dfo-entrust-i5at. SlotName: Production. ExtensionVersion: 2.10.0. SequenceNumber: 86. TaskEventId: -1