astefanutti opened a new pull request #2536:
URL: https://github.com/apache/camel-k/pull/2536
This is a proof-of-concept PR to add Quarkus native build support.
I've tested it successfully on OpenShift (CRC), with a simple YAML
Integration:
```
2021-07-29 10:20:37,254 INFO [org.apa.cam.k.Runtime] (main) Apache Camel K
Runtime 1.8.0
2021-07-29 10:20:37,254 INFO [org.apa.cam.qua.cor.CamelBootstrapRecorder]
(main) Bootstrap runtime: org.apache.camel.quarkus.main.CamelMainRuntime
2021-07-29 10:20:37,255 INFO [org.apa.cam.k.lis.SourcesConfigurer] (main)
Loading routes from: SourceDefinition{name='camel-k-embedded-flow',
language='yaml', type='source',
location='file:/etc/camel/sources/camel-k-embedded-flow.yaml', }
2021-07-29 10:20:37,259 INFO [org.apa.cam.imp.eng.AbstractCamelContext]
(main) Routes startup summary (total:1 started:1)
2021-07-29 10:20:37,259 INFO [org.apa.cam.imp.eng.AbstractCamelContext]
(main) Started route1 (timer://tick)
2021-07-29 10:20:37,259 INFO [org.apa.cam.imp.eng.AbstractCamelContext]
(main) Apache Camel 3.11.0 (camel-1) started in 2ms (build:0ms init:1ms
start:1ms)
2021-07-29 10:20:37,259 INFO [io.quarkus] (main) camel-k-integration
1.6.0-SNAPSHOT native (powered by Quarkus 2.0.0.Final) started in 0.025s.
2021-07-29 10:20:37,259 INFO [io.quarkus] (main) Profile prod activated.
2021-07-29 10:20:37,259 INFO [io.quarkus] (main) Installed features:
[camel-bean, camel-core, camel-k-core, camel-k-runtime, camel-log,
camel-support-common, camel-timer, camel-yaml-dsl, cdi]
2021-07-29 10:20:38,260 INFO [info] (Camel (camel-1) thread #0 -
timer://tick) Exchange[ExchangePattern: InOnly, BodyType: String, Body: Hello
Yaml !!!]
```
The first build duration is about 7m43s (including Maven dependencies
download), while a second build is about 7m29s:
```
k get builds.camel.apache.org
NAME PHASE AGE STARTED DURATION
ATTEMPTS
kit-c417u8e3709squm11hl0 Succeeded 10m 10m 7m43.463255655s
kit-c4189u63709squm11hlg Succeeded 7m36s 7m36s 7m29.756844671s
```
Note this is a build performed for a simple Integration, on a CRC cluster.
Also the build image size is reduced to 73.2MB when using the
`quay.io/quarkus/quarkus-distroless-image` base image:
```
docker image ls
REPOSITORY
TAG IMAGE ID CREATED SIZE
default-route-openshift-image-registry.apps-crc.testing/camel-k/camel-k-kit-c4189u63709squm11hlg
<none> 13eb7fb8fb64 5 minutes ago 73.2MB
```
It also works with a JavaScript Integration, by adding the
`quarkus.native.additional-build-args=--language:js` build property. On the
other hand, I've faced a NPE at start time with a Java Integration, during the
JOOR compilation, that seems to rely on reflection.
I've tested it with the
`quay.io/quarkus/ubi-quarkus-mandrel:21.2.0.0-Final-java11` image, but the
native build fails for some reasons.
TODO:
- [ ] Proper configurability (Quarkus trait, disable the JVM trait
automatically, ...)
- [ ] Disable incremental image build automatically
- [ ] Bring support to the Spectrum, Kaniko and Buildah build strategies
**Release Note**
```release-note
feat: Quarkus native build support
```
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