Update: The question had been answered under Camel K GitHub Issues: https://github.com/apache/camel-k/issues/2693
I have a Camel K project and it uses port 4739. Now I am only able to send data to the port when log into the pod container.
I am trying to send data outside of the container, does anyone know how to configure?
The following command has been tried but seems not working...
// Split commands into multiple lines for easy read
kamel run
--trait container.enabled=true
--trait container.expose=true
--trait container.port=4739
--trait service.node-port=true
SyslogBasic.java --dev
My understanding is container is living inside of a pod. Firstly we need to expose the container port to pod and then use service to expose the port to outside, unfortunately I haven't find any command line related to service port.
(base) ➜ ~ kamel describe integration syslog-basic
Name: syslog-basic
Namespace: camel-basic
Creation Timestamp: Fri, 08 Oct 2021 15:31:27 -0600
Phase: Running
Runtime Version: 1.9.0
Kit: camel-basic/kit-c59mu55np3m8mfiq07hg
Image: 10.100.204.194/camel-basic/camel-k-kit-c59mu55np3m8mfiq07hg@sha256:06d02dbdda3a58fa0428b9d7cccab9d0708a0172ebe1a9c37e9c1ad114d46769
Version: 1.6.0
Dependencies:
camel:log
camel:netty
mvn:com.fasterxml.jackson.core:jackson-databind:2.12.5
mvn:io.quarkus:quarkus-logging-json
mvn:org.apache.camel.k:camel-k-runtime
mvn:org.apache.camel.quarkus:camel-quarkus-java-joor-dsl
mvn:org.apache.camel:camel-syslog:3.11.2
Sources:
Name Language Compression Ref Ref Key
SyslogBasic.java java false
Conditions:
Type Status Reason Message
IntegrationPlatformAvailable True IntegrationPlatformAvailable camel-basic/camel-k
IntegrationKitAvailable True IntegrationKitAvailable kit-c59mu55np3m8mfiq07hg
CronJobAvailable False CronJobNotAvailableReason different controller strategy used (deployment)
DeploymentAvailable True DeploymentAvailable deployment name is syslog-basic
ServiceAvailable False ServiceNotAvailable no http service required
ExposureAvailable False IngressNotAvailable no host or service defined
Ready True ReplicaSetReady
Traits:
Container:
Configuration: map[enabled:true expose:true port:4739]
Service:
Configuration: map[enabled:true nodePort:true]
As of Camel K version 1.6, the auto-configuration of the container port is only available for the HTTP protocol, as reported by the condition:
Conditions:
Type Status Reason Message
ServiceAvailable False ServiceNotAvailable no http service required
You can achieve it manually, by exposing the container port using the kamel run --pod-template option, with the following template.yaml file:
containers:
- name: integration
ports:
- containerPort: 4739
protocol: UDP
And creating the Service manually, e.g.:
$ cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: Service
metadata:
name: service
spec:
selector:
camel.apache.org/integration: sys-log-basic
ports:
- protocol: UDP
port: 4739
targetPort: 4739
EOF
Then you can run the integration with:
$ kamel run SysLogBasic.java --pod-template template.yaml -d camel-syslog
And send a Syslog trace using Netcat, e.g.:
$ kubectl run -i --rm debug --image=busybox --restart=Never --command -- sh -c "echo '<34>Oct 11 22:14:15 mymachine su: failed on /dev/pts/8' | nc -u -w1 service 4739"
Finally you can check in the integration logs the trace has been processed, e.g.:
$ kubectl logs -l camel.apache.org/integration=sys-log-basic
2021-10-14 08:09:36,436 INFO [io.quarkus] (main) camel-k-integration 1.7.0-SNAPSHOT on JVM (powered by Quarkus 2.2.0.Final) started in 1.684s.
2021-10-14 08:09:36,436 INFO [io.quarkus] (main) Profile prod activated.
2021-10-14 08:09:36,437 INFO [io.quarkus] (main) Installed features: [camel-bean, camel-core, camel-java-joor-dsl, camel-k-core, camel-k-runtime, camel-log, camel-netty, camel-syslog, cdi]
2021-10-14 08:39:06,842 INFO [info] (Camel (camel-1) thread #1 - NettyConsumerExecutorGroup) Exchange[ExchangePattern: InOnly, BodyType: org.apache.camel.component.syslog.SyslogMessage, Body: <34>Oct 11 22:14:15 mymachine su: failed on /dev/pts/8]