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kafka-ops / julie

A solution to help you build automation and gitops in your Apache Kafka deployments. The Kafka gitops!
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Admin client config working for kafka cli tools doesn't work for julie #240

Open manuelbonk opened 3 years ago

manuelbonk commented 3 years ago

Describe the bug I've created a kafka admin client properties file. This file works perfectly with kafka-topics and the other kafka cli tools. If I pass julie the very same properties file the SSL handshake fails.

To Reproduce Steps to reproduce the behavior:

  1. Setup a kafka cluster with self-signed TLS certificates.
  2. create an admin client config file: 
    $ cat /etc/kafka/secrets/topology-builder.properties 
security.protocol=SSL
ssl.keystore.location=/etc/kafka/secrets/kafka.keystore.jks
ssl.keystore.password=<my_secret_password>
ssl.truststore.location=/etc/kafka/secrets/kafka.truststore.jks
ssl.truststore.password=<my_secret_password>
ssl.endpoint.identification.algorithm=
  3. test the admin client config with kafka-topics: 
    $ kafka-topics --bootstrap-server 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093 --command-config /etc/kafka/secrets/topology-builder.properties --list
[2021-03-25 14:31:02,673] WARN The configuration 'schema.registry.url' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
[2021-03-25 14:31:02,674] WARN The configuration 'ssl.truststore.location' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
[2021-03-25 14:31:02,674] WARN The configuration 'ssl.keystore.password' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
[2021-03-25 14:31:02,674] WARN The configuration 'ssl.keystore.location' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
[2021-03-25 14:31:02,674] WARN The configuration 'ssl.truststore.password' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
[2021-03-25 14:31:02,674] WARN The configuration 'ssl.endpoint.identification.algorithm' was supplied but isn't a known config. (org.apache.kafka.clients.admin.AdminClientConfig)
__consumer_offsets
_confluent-command
  4. create a dummy topology file: 
    $ cat /tmp/ansible.u353lgc6/app.yaml
---
context: "playground"
projects:
- name: "my-project"
topics:
  -
    name: demo
    config:
     replication.factor: 3
     num.partitions: 10
...
  5. run julie using the admin config file and the topology file: 
    bash-5.1$ julie-ops-cli.sh --clientConfig /etc/kafka/secrets/topology-builder.properties --brokers 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093 --topology /tmp/ansible.u353lgc6 --dryRun
[INFO ] 2021-03-25 14:29:42.896 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093
[INFO ] 2021-03-25 14:29:42.896 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093
log4j:WARN No appenders could be found for logger (org.apache.kafka.clients.admin.AdminClientConfig).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[ERROR] 2021-03-25 14:29:46.362 [main] TopologyBuilderAdminClient - java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
[ERROR] 2021-03-25 14:29:46.362 [main] TopologyBuilderAdminClient - java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
Exception in thread "main" java.io.IOException: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClient.listTopics(TopologyBuilderAdminClient.java:52)
at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClient.listApplicationTopics(TopologyBuilderAdminClient.java:73)
at com.purbon.kafka.topology.TopicManager.loadActualClusterStateIfAvailable(TopicManager.java:89)
at com.purbon.kafka.topology.TopicManager.apply(TopicManager.java:48)
at com.purbon.kafka.topology.JulieOps.run(JulieOps.java:181)
at com.purbon.kafka.topology.JulieOps.run(JulieOps.java:201)
at com.purbon.kafka.topology.CommandLineInterface.processTopology(CommandLineInterface.java:196)
at com.purbon.kafka.topology.CommandLineInterface.run(CommandLineInterface.java:144)
at com.purbon.kafka.topology.CommandLineInterface.main(CommandLineInterface.java:134)
Caused by: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
at org.apache.kafka.common.internals.KafkaFutureImpl.wrapAndThrow(KafkaFutureImpl.java:45)
at org.apache.kafka.common.internals.KafkaFutureImpl.access$000(KafkaFutureImpl.java:32)
at org.apache.kafka.common.internals.KafkaFutureImpl$SingleWaiter.await(KafkaFutureImpl.java:89)
at org.apache.kafka.common.internals.KafkaFutureImpl.get(KafkaFutureImpl.java:260)
at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClient.listTopics(TopologyBuilderAdminClient.java:49)
... 8 more
Caused by: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
at java.base/sun.security.ssl.SSLEngineInputRecord.bytesInCompletePacket(Unknown Source)
at java.base/sun.security.ssl.SSLEngineInputRecord.bytesInCompletePacket(Unknown Source)
at java.base/sun.security.ssl.SSLEngineImpl.readRecord(Unknown Source)
at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)
at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)
at java.base/javax.net.ssl.SSLEngine.unwrap(Unknown Source)
at org.apache.kafka.common.network.SslTransportLayer.handshakeUnwrap(SslTransportLayer.java:509)
at org.apache.kafka.common.network.SslTransportLayer.doHandshake(SslTransportLayer.java:368)
at org.apache.kafka.common.network.SslTransportLayer.handshake(SslTransportLayer.java:291)
at org.apache.kafka.common.network.KafkaChannel.prepare(KafkaChannel.java:173)
at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:543)
at org.apache.kafka.common.network.Selector.poll(Selector.java:481)
at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:561)
at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.processRequests(KafkaAdminClient.java:1329)
at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1260)
at java.base/java.lang.Thread.run(Unknown Source)

Expected behavior julie successfully connects to the kafka cluster.

Runtime (please complete the following information):

Additional context Connecting to the brokers with openssl s_client works. The handshake fails as the operating system doesn't trust the self signed CA. This shouldn't be an issue for julie as julie should use the truststore specified in the admin config file containing the CA.

bash-5.1$ openssl s_client 100.127.129.158:9093
CONNECTED(00000003)
Can't use SSL_get_servername
depth=1 C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
verify error:num=19:self signed certificate in certificate chain
verify return:1
depth=1 C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
verify return:1
depth=0 C = US, ST = Ca, L = PaloAlto, O = CONFLUENT, OU = TEST, CN = 100.127.129.158
verify return:1
139653260368712:error:141A10F4:SSL routines:ossl_statem_client_read_transition:unexpected message:ssl/statem/statem_clnt.c:393:
---
Certificate chain
 0 s:C = US, ST = Ca, L = PaloAlto, O = CONFLUENT, OU = TEST, CN = 100.127.129.158
   i:C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
 1 s:C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
   i:C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=C = US, ST = Ca, L = PaloAlto, O = CONFLUENT, OU = TEST, CN = 100.127.129.158

issuer=C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services

---
Acceptable client certificate CA names
C = DE, ST = Some-State, O = Internet Widgits Pty Ltd, CN = cloud native services
Client Certificate Types: RSA sign, DSA sign, ECDSA sign
Requested Signature Algorithms: ECDSA+SHA512:RSA+SHA512:ECDSA+SHA384:RSA+SHA384:ECDSA+SHA256:RSA+SHA256:DSA+SHA256:ECDSA+SHA224:RSA+SHA224:DSA+SHA224:ECDSA+SHA1:RSA+SHA1:DSA+SHA1
Shared Requested Signature Algorithms: ECDSA+SHA512:RSA+SHA512:ECDSA+SHA384:RSA+SHA384:ECDSA+SHA256:RSA+SHA256:DSA+SHA256:ECDSA+SHA224:RSA+SHA224:DSA+SHA224:ECDSA+SHA1:RSA+SHA1:DSA+SHA1
Peer signing digest: SHA256
Peer signature type: RSA
Server Temp Key: ECDH, P-256, 256 bits
---
SSL handshake has read 4882 bytes and written 462 bytes
Verification error: self signed certificate in certificate chain
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES256-GCM-SHA384
    Session-ID: 605C9F0F2C60D55B223DF065B9DA94131AB671B8658542BC6CAB469D8A7C68D5
    Session-ID-ctx:
    Master-Key: 979F46FFE49176BAF6CE3F72F347DE09F9BEC2328619A4AFBF8FDC681545C55E7F289D60CC4E14F220622AA1CA68477E
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1616682767
    Timeout   : 7200 (sec)
    Verify return code: 19 (self signed certificate in certificate chain)
    Extended master secret: yes
---
purbon commented 3 years ago

Thanks for bringing this up, I am sorry your are having this problems.

With latest I changed a bit the way the JVM is done in the docker image, to basically make it smaller I might be some missing stuff if required in java.

I tested right now master code with the docker image locally under docker/tls and I have notice no errors, but I will keep testing tomorrow.

Looking forward to sort this out.

Context, Admin client usage is really simple here, all configs goes there, so there should be no difference.

Keep you posted

purbon commented 3 years ago

Hi @manuelbonk. I finally took sometime to run a couple of test in this report. What i did is this.

This is what I get:

docker run -t -i \
       -v /Users/pere/work/gitops/kafka-topology-builder/example:/example \
       -v /Users/pere/work/gitops/kafka-topology-builder/docker:/docker \
       --network tls_default \
       purbon/kafka-topology-builder:latest \
       julie-ops-cli.sh  \
       --brokers kafka.confluent.local:9093 \
       --clientConfig /example/topology-builder-tls.properties --topology /example/descriptor.yaml

[INFO ] 2021-03-27 17:32:28.401 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to kafka.confluent.local:9093
[INFO ] 2021-03-27 17:32:28.401 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to kafka.confluent.local:9093
log4j:WARN No appenders could be found for logger (org.apache.kafka.clients.admin.AdminClientConfig).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
List of Topics:
context.company.env.source.projectC.topicE
context.company.env.source.projectC.topicF
context.company.env.source.projectA.bar.avro
.... redacted....
_confluent-monitoring
'TOPIC', '_confluent-monitoring', '*', 'CREATE', 'User:ControlCenter', 'LITERAL'
'TOPIC', '_confluent-monitoring', '*', 'WRITE', 'User:ControlCenter', 'LITERAL'
'TOPIC', '_confluent-monitoring', '*', 'DESCRIBE', 'User:ControlCenter', 'LITERAL'
'TOPIC', '_confluent-monitoring', '*', 'READ', 'User:ControlCenter', 'LITERAL'
status
'TOPIC', 'status', '*', 'WRITE', 'User:Connect1', 'LITERAL'
'TOPIC', 'status', '*', 'READ', 'User:Connect1', 'LITERAL'
List of Principles:
Kafka Topology updated

you can see i used latest as in your report.

This is the property file I used:

/example/topology-builder-tls.properties

security.protocol=SSL
ssl.truststore.location=/docker/tls/certs/truststore.jks
ssl.truststore.type=PKCS12
ssl.truststore.password=test1234
ssl.keystore.location=/docker/tls/certs/server.keystore.jks
ssl.keystore.password=test1234
ssl.keystore.type=PKCS12
ssl.key.password=test1234
ssl.endpoint.identification.algorithm=

this file is available in the running container and used to access and run the commands.

As you can see from

https://github.com/kafka-ops/julie/blob/master/src/main/java/com/purbon/kafka/topology/api/adminclient/TopologyBuilderAdminClientBuilder.java#L22-L34

and https://github.com/kafka-ops/julie/blob/c46058f17ea82703586c1ecbc914fe4f244865c5/src/main/java/com/purbon/kafka/topology/Configuration.java#L137

nearly every config given in then passed to the adminClient.

I wonder,

Caused by: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?

this reference something arrived unrecognized during the SSL handshake trial.

Do you mind replicating and validating my tests here? I would love to help findings the small needle in your situation.

purbon commented 3 years ago

Either in JulieOps as in Kafka, I would suggest turning on the LOG debug mode. This would help to debug the problem.

manuelbonk commented 3 years ago

Hi Pere, thanks for your reply. I've set the properties file just like your's:

security.protocol=SSL
ssl.keystore.location=/etc/kafka/secrets/kafka.keystore.jks
ssl.keystore.password=XXX
ssl.truststore.location=/etc/kafka/secrets/kafka.truststore.jks
ssl.truststore.password=XXX
ssl.endpoint.identification.algorithm=
bootstrap.servers=100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093
ssl.keystore.type=PKCS12
ssl.truststore.type=PKCS12

How can I enable the debug log for Julie? I couldn't find any info on that in the docu. I'm only passing the client config and the topology dir, still the same result:

bash-5.1$ julie-ops-cli.sh --clientConfig /tmp/ktb.properties --topology /tmp/ansible.u353lgc6
[INFO ] 2021-03-29 17:02:03.832 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093
[INFO ] 2021-03-29 17:02:03.832 [main] TopologyBuilderAdminClientBuilder - Connecting AdminClient to 100.127.129.155:9093,100.127.129.156:9093,100.127.129.157:9093,100.127.129.158:9093
log4j:WARN No appenders could be found for logger (org.apache.kafka.clients.admin.AdminClientConfig).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
Exception in thread "main" java.io.IOException: Problem during the health-check operation
    at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClient.healthCheck(TopologyBuilderAdminClient.java:62)
    at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClientBuilder.build(TopologyBuilderAdminClientBuilder.java:30)
    at com.purbon.kafka.topology.JulieOps.build(JulieOps.java:70)
    at com.purbon.kafka.topology.CommandLineInterface.processTopology(CommandLineInterface.java:195)
    at com.purbon.kafka.topology.CommandLineInterface.run(CommandLineInterface.java:144)
    at com.purbon.kafka.topology.CommandLineInterface.main(CommandLineInterface.java:134)
Caused by: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
    at org.apache.kafka.common.internals.KafkaFutureImpl.wrapAndThrow(KafkaFutureImpl.java:45)
    at org.apache.kafka.common.internals.KafkaFutureImpl.access$000(KafkaFutureImpl.java:32)
    at org.apache.kafka.common.internals.KafkaFutureImpl$SingleWaiter.await(KafkaFutureImpl.java:89)
    at org.apache.kafka.common.internals.KafkaFutureImpl.get(KafkaFutureImpl.java:260)
    at com.purbon.kafka.topology.api.adminclient.TopologyBuilderAdminClient.healthCheck(TopologyBuilderAdminClient.java:60)
    ... 5 more
Caused by: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
Caused by: javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
    at java.base/sun.security.ssl.SSLEngineInputRecord.bytesInCompletePacket(Unknown Source)
    at java.base/sun.security.ssl.SSLEngineInputRecord.bytesInCompletePacket(Unknown Source)
    at java.base/sun.security.ssl.SSLEngineImpl.readRecord(Unknown Source)
    at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)
    at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)
    at java.base/javax.net.ssl.SSLEngine.unwrap(Unknown Source)
    at org.apache.kafka.common.network.SslTransportLayer.handshakeUnwrap(SslTransportLayer.java:509)
    at org.apache.kafka.common.network.SslTransportLayer.doHandshake(SslTransportLayer.java:368)
    at org.apache.kafka.common.network.SslTransportLayer.handshake(SslTransportLayer.java:291)
    at org.apache.kafka.common.network.KafkaChannel.prepare(KafkaChannel.java:173)
    at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:543)
    at org.apache.kafka.common.network.Selector.poll(Selector.java:481)
    at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:561)
    at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.processRequests(KafkaAdminClient.java:1329)
    at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1260)
    at java.base/java.lang.Thread.run(Unknown Source)

Yes, I'm accessing the TLS port, see Additional context in my initial post where I get a response with openssl s_client.

purbon commented 3 years ago

I have a guess, do you mind trying something for me? can you try again but:

I have the feeling it might be the parsing of this that gets "funny".

Let me know if you can try this. It will be highly helpful.

-- Pere

manuelbonk commented 3 years ago

I've tried it without the bootstrap.servers in the file and by passing only one broker, still the same issue. I've used the latest version of the julie docker image and also tried an old version of kafka-topology-builder. Both were running on the same K8s cluster, against the same Kafka cluster with the exact same topology files, properties files and credentials. The former failed, the latter succeeded... I've also tried it on different kafka clusters, still the same error.

I'm running out of ideas... Are there any means to increase the verbosity of julie?

purbon commented 3 years ago

I think so, this is how I solve any TLS connection when implying the use of external clients, such as https.

Missatge de Fobhep @.***> del dia dt., 11 de maig 2021 a les 16:48:

could this possibly be "solved" by exporting trusstore (and maybe) keystore via JULIE_OPS_OPTIONS?

— You are receiving this because you commented. Reply to this email directly, view it on GitHub https://github.com/kafka-ops/julie/issues/240#issuecomment-838608464, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAAQXPFK7ALD7OO55NDX6NLTNE7TVANCNFSM4ZZQBD6A .

-- Pere Urbon-Bayes Software Architect https://twitter.com/purbon https://www.linkedin.com/in/purbon/

lexey-evergreen commented 3 years ago

I seem to only be able to replicate this on the Alpine Linux version of purbon/kafka-topology-builder created from the nightly build. This may have something to do with your comment:

With latest I changed a bit the way the JVM is done in the docker image, to basically make it smaller I might be some missing stuff if required in java.

The strangest part is that I can rerun the same command multiple times in a row without changing anything and around ~60% of the time it will throw the following error, and the rest of the time it works as expected. Maybe it's some kind of race condition?

Exception in thread "main" java.io.IOException: Problem during the health-check operation
...
Caused by: java.util.concurrent.ExecutionException: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
...
Caused by: org.apache.kafka.common.errors.SslAuthenticationException: SSL handshake failed
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure
...
at org.apache.kafka.clients.admin.KafkaAdminClient$AdminClientRunnable.run(KafkaAdminClient.java:1289)
at java.base/java.lang.Thread.run(Unknown Source)

Usage Details

I'm using Confluent Cloud, and my config is like so: test-environment.properties:

bootstrap.servers=***
schema.registry.url=***

test-environment-override.properties:

ssl.endpoint.identification.algorithm=https
security.protocol=SASL_SSL
sasl.mechanism=PLAIN
sasl.jaas.config=org.apache.kafka.common.security.plain.PlainLoginModule required username="***" password="***";
basic.auth.credentials.source=USER_INFO
schema.registry.basic.auth.user.info=***:***
allow.delete.topics=true
topology.features.experimental=true
allow.delete.principals=false
allow.delete.bindings=true
topology.service.accounts.managed.prefixes.0=Service
topology.translation.principal.enabled=true
ccloud.environment=***
topology.state.cluster.enabled=true

output.yml:

---
# Source: kafka-topology/templates/topology.yaml
context: env
instance: test-environment
projects:
  - name: ***
    topics:
      - name: "***"
        producers:
          - principal: "Service:***"
        consumers:
          - principal: "Service:***"
            group: "****"
        schemas:
          value.schema.file: schemas/***.avsc
          value.format: "AVRO"
          value.compatibility: "FULL_TRANSITIVE"
        config:
          replication.factor: "3"
          num.partitions: "1"
          confluent.key.schema.validation: true
          confluent.value.schema.validation: true

command:

julie-ops-cli.sh --clientConfig ./JulieOps/test-environment.properties --overridingClientConfig ./JulieOps/test-environment-override.properties --topology ./JulieOps/output.yml