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Posted to commits@camel.apache.org by "andrijadukic-syntio (via GitHub)" <gi...@apache.org> on 2023/05/17 14:53:44 UTC

[GitHub] [camel-kamelets-examples] andrijadukic-syntio opened a new issue, #19: Add example for securely connecting to Kafka (and a potential bug?)

andrijadukic-syntio opened a new issue, #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19

   Hi, an example such as the [Kafka to IBM MQ](https://github.com/apache/camel-kamelets-examples/tree/main/jbang/kafka-mq) one, but for showing usage of security mechanisms would be much appreciated, as any production use case certainly requires something like SASL_PLAIN to be used.
   
   We've attempted the exact integration I linked to, but through the "base" kafka source kamelet. The route we tried is (skipping irrelevant parts):
   
   ```yaml
   ...
   - route:
       id: "kafka-to-mq"
       from:
         uri: "kamelet:kafka-source"
         parameters:
           bootstrapServers: "{{kafka.bootstrapServers}}"
           topic: "{{kafka.kafka-to-mq-topic}}"
           saslMechanism: PLAIN
           securityProtocol: SASL_SSL
           user: "$ConnectionString"
           password: "<PASSWORD>"
           deserializeHeaders: true
   ...
   ```
   
   However, this doesn't work because, for some reason, authentication is failing. The stacktrace says nothing useful, as it seems like a standard error you'd get from wrong credentials being used.
   One potential issue that's happening is incorrect parsing due to the '$' character at the start of the username, but basically the authentication process fails for some reason.
   
   To make sure this is an issue with the kamelet, and not with our configuration, we've also tried out the Camel Core Kafka source from which this kamelet is based on, which then looks something like this:
   
   ```yaml
   ...
   - route:
       id: "kafka-to-mq"
       from:
         uri: "kafka:{{kafka.kafka-to-mq-topic}}"
         parameters:
           brokers: "{{kafka.bootstrapServers}}"
           groupId: "{{kafka.groupId}}"
           saslJaasConfig: 'org.apache.kafka.common.security.plain.PlainLoginModule required username="$ConnectionString" password={{kafka.password}};'
           saslMechanism: PLAIN
           securityProtocol: SASL_SSL
   ...
   ```
   
   This works as expected, but then the issue is that any custom header we have in Kafka won't be passed over to IBM MQ (but this is a separate issue that I won't get into in this context).
   
   One thing we noticed, which might be the reason behind what's wrong is the fact that, in the case of the kamelet kafka source, the "compiled" (from the resolved uri) saslJaasConfig has single quotes around the username and password parts, but in the kafka source (the one which is working properly, aside from an issue with the headers), double quotes are used instead.
   We've also tried to add an additional '$' in the username, in order to escape it (so "$$ConnectionString"), and trying wrapping the username in double quotes, but nothing works.
   
   Used versions:
   - camel-k: dependency=mvn:com.ibm.mq:com.ibm.mq.allclient:9.2.5.0
   - camel-k: dependency=mvn:org.apache.camel.kamelets:camel-kamelets-utils:3.20.1.1
   
   Additional notes:
   The "Kafka" cluster we're attempting to connect to is actually an Azure Event Hubs namespace, but with Kafka enabled. This isn't relevant since the Camel Core Kafka source works with Event Hubs (since Event Hubs fully supports the Kafka Consumer/Producer API), but I'm mentioning it just in case (and to also explain the strange username).


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1551576632

   > You should use this: https://github.com/apache/camel-kamelets/blob/main/kamelets/kafka-source.kamelet.yaml
   > 
   > I'll update the example accordingly
   
   Hi @oscerd , thanks for replying so quickly!
   The first snippet (the route definition that we've tried using but fails to authenticate) is the one you linked (so not the kafka-not-secured-source, but the kafka-source kamelet), but unfortunately, it's not working:
   ```yaml
   ...
   - route:
       id: "kafka-to-mq"
       from:
         uri: "kamelet:kafka-source"
         parameters:
           bootstrapServers: "{{kafka.bootstrapServers}}"
           topic: "{{kafka.kafka-to-mq-topic}}"
           saslMechanism: PLAIN
           securityProtocol: SASL_SSL
           user: "$ConnectionString"
           password: "<PASSWORD>"
           deserializeHeaders: true
   ...
   ```


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552799887

   So is it this
   
       saslJaasConfig: "org.apache.kafka.common.security.plain.PlainLoginModule required username='{{user}}' password='{{password}}';"
   
   Its all YAML (you have to love it ... ;)
   
   So here it uses lined single quotes for that jaas config string
   
   If it needs to be changed to double quotes, then you need to change yaml to use single quoted wrapped, so something like:
   
       saslJaasConfig: 'org.apache.kafka.common.security.plain.PlainLoginModule required username="{{user}}" password="{{password}}";'
   
   


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1554244884

   Going to work on a good example for this.


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552719716

   Are you running this locally through some docker compose stuff?


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552981886

   Yes, so we need to modify it


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552986264

   With modified kamelet 
   
   ```
   org.apache.kafka.common.security.plain.PlainLoginModule required username="$ConnectionString" password="mypassword";
   ```


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1553056078

   This is how I changed the kamelet
   ```
           saslJaasConfig: 'org.apache.kafka.common.security.plain.PlainLoginModule required username="{{user}}" password="{{password}}";'
   ```
   
   Camel takes care of the RAW automatic for kamelets 


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552805382

   Creating an example using all the configuration for having a local kafka with SASL_SSL and PLAIN is a bit more complex.


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552804715

   I think we could do that easily. So I'm going to do that on camel-kamelets


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1551593328

   By the way I'll try to reproduce. It's weird to see $connection as username.. but if you externalize the properties it should work. I'll have a look


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1553025961

   > So if Azure expects that username and password are using double quotes, then its likely a matter of changing this in the kamelet yaml file
   
   @davsclaus I think you're exactly right.
   However, one needs to consider if this is a breaking change in the case the parser might treat single and double quotes differently. For example, if something that previously didn't need explicit escaping now needs it, but I'm just a user here so no idea if this is relevant :).
   This stackoverflow post (the answer I'll link to) mentions something about RAW `saslJaasConfig` and how it treats quotes differently: https://stackoverflow.com/a/66763779.


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552804790

   I think we could do that easily. So I'm going to do that on camel-kamelets


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1551586064

   The user needs to be just the username nothing more. It's already included in sala jaas config


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552667020

   > By the way I'll try to reproduce. It's weird to see $connection as username.. but if you externalize the properties it should work. I'll have a look
   
   We've placed the user credentials in an application.properties file; for the example route I've hardcoded it into the route so that it's simpler to show what the value would be (since it will always be $ConnectionString.


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1554238692

   Fixed in camel-kamelets through: https://github.com/apache/camel-kamelets/issues/1476
   
   Tested with Azure Event Hubs for Kafka


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552663214

   > The user needs to be just the username nothing more. It's already included in sala jaas config
   
   Yes, the value of the user is exactly $ConnectionString. This can't be changed unfortunately.


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552980378

   So if Azure expects that username and password are using double quotes, then its likely a matter of changing this in the kamelet yaml file


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1553058783

   You can even copy the existing kamelet yaml file and name it - `mykafka-source.kamelet.yaml` and change the file to use double quotes as ^^^, and then save this file to disk.
   
   And with jbang you can then tell it to look for kamelets in the current dir (or another folder)
   
       camel run consumer.yaml --local-kamelet-dir=. --console
   
   And in your route (`consumer.yaml`) you can then use `mykafka-source` as the name instead of the default name. 


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1557108573

   This should be fixed now.


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1551557194

   You should use this: https://github.com/apache/camel-kamelets/blob/main/kamelets/kafka-source.kamelet.yaml
   
   I'll update the example accordingly


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552634113

   @davsclaus I suppose the only problem is in relation to the '$' sign.


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552675476

   > @davsclaus I suppose the only problem is in relation to the '$' sign.
   
   It might be, but I think it's not only that but a combination of that and the single quotes that are being used in the saslJaasConfig; the [kafka source kamelet uses single quotes](https://github.com/apache/camel-kamelets/blob/main/kamelets/kafka-source.kamelet.yaml#L146), while saslJaasConfig would normally have double quotes, [like in this example by Confluent](https://docs.confluent.io/platform/current/kafka/authentication_sasl/index.html). We've also used double quotes for saslJaasConfig in the Camel core Kafka source/sink and that is working as expected (despite the same $ConnectionString username).


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552724249

   > Are you running this locally through some docker compose stuff?
   
   the integration is running locally (not in docker, on Windows 10, with OpenJDK 19 installed), the "Kafka" cluster (Azure Event Hubs) is running on Azure, and IBM MQ is tested out both on the cloud and as a docker container (but MQ isn't relevant here since it fails long before getting to the MQ part).


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[GitHub] [camel-kamelets-examples] davsclaus commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "davsclaus (via GitHub)" <gi...@apache.org>.
davsclaus commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1552979850

   With the current kamelet, then in the debugger I see this value set on the KafkaConfiguration instance
   
   ```
   org.apache.kafka.common.security.plain.PlainLoginModule required username='$ConnectionString' password='mypassword';
   ```


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[GitHub] [camel-kamelets-examples] oscerd commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1553078132

   I'll update the Kamelet, I'll use it on event hubs and I'll create an example with that


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[GitHub] [camel-kamelets-examples] andrijadukic-syntio commented on issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "andrijadukic-syntio (via GitHub)" <gi...@apache.org>.
andrijadukic-syntio commented on issue #19:
URL: https://github.com/apache/camel-kamelets-examples/issues/19#issuecomment-1554218815

   > I'll update the Kamelet, I'll use it on event hubs and I'll create an example with that
   
   Thanks @oscerd and @davsclaus!
   I'm really thankful for your support with this :)


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[GitHub] [camel-kamelets-examples] oscerd closed issue #19: Add example for securely connecting to Kafka (and a potential bug?)

Posted by "oscerd (via GitHub)" <gi...@apache.org>.
oscerd closed issue #19: Add example for securely connecting to Kafka (and a potential bug?)
URL: https://github.com/apache/camel-kamelets-examples/issues/19


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