Effective Spring + Kubernetes with Adib Saikali at SpringOne Tour 2019

9. ●
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https://wiki.musl-libc.org/functional-differences-from-glib
c.html

10. https://openjdk.java.net/jeps/8229469

11. ● glibc
● glibc muslc
muslc

13. https://www.infoq.com/news/2019/06/docker-vulnerable-java/

18. ● https://hub.docker.com/_/adoptopenjdk
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● https://blog.adoptopenjdk.net/category/test

19. ●
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21. ●
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23. ● https://hub.docker.com/_/adoptopenjdk
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24. Software & Support for OpenJDK, Spring, and Tomcat

29. ● The app .jar file is ~76MB which is mostly third party .jar files that don’t change between rebuilds of the application.
● Every time the image is re-built due to an app code change the whole .jar layer needs to be rebuilt

30. The application 3rd dependency .jar files are in their own layer so on a rebuild only the smaller application
layers need to be pushed or pulled

32. ●
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36. ●
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37. ●
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apiVersion: v1
kind: Pod
metadata:
name: myapp
spec:
containers:
- name: myapp
image: myapp:128
env:
resources:
requests:
memory: "1024Mi"
cpu: "1000m"
limits:
memory: "2048Mi"
cpu: "2000m"

38. ●
○
○
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●
●
○
○
○
apiVersion: v1
kind: Pod
metadata:
name: myapp
spec:
containers:
- name: myapp
image: myapp:128
env:
resources:
requests:
memory: "1024Mi"
cpu: "1000m"
limits:
memory: "2048Mi"
cpu: "2000m"

39. ●
○
○
○
●
●
●
apiVersion: v1
kind: Pod
metadata:
name: myapp
spec:
containers:
- name: myapp
image: myapp:128
env:
resources:
requests:
memory: "1024Mi"
cpu: "1000m"
limits:
memory: "2048Mi"
cpu: "2000m"

40. ● Runtime.getRuntime().availableProcessor()
●
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●

41. ●
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● -XX:ActiveProcessorCount

42. ●
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●
○
○
○
apiVersion: v1
kind: Pod
metadata:
name: myapp
spec:
containers:
- name: myapp
image: myapp:128
env:
resources:
requests:
memory: "1024Mi"
cpu: "1000m"
limits:
memory: "2048Mi"
cpu: "2000m"

43. ●
○
○
○
●
●
●
apiVersion: v1
kind: Pod
metadata:
name: myapp
spec:
containers:
- name: myapp
image: myapp:128
env:
resources:
requests:
memory: "1024Mi"
cpu: "1000m"
limits:
memory: "2048Mi"
cpu: "2000m"

44. ●
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○
○
○
○
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○ -XX:MaxRAMPercentage=75.0
○

45. ●
●
●
● -XX:ActiveProcessorCount
●
● -XX:MaxRAMPercentage

47. ●
●
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●

48. © 2019 PIVOTAL SOFTWARE, INC. All Rights Reserved. Confidential & Provided Under
NDA —Do Not Distribute. Forwarding this document outside your organization is prohibited.

50. ●
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51. ●
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52. cflinuxfs3 releases
0.92.0 released - 22 hours ago
0.91.0 released - 22 hours ago
0.90.0 released - 22 hours ago
0.89.0 released - 6 days ago
0.88.0 released - 9 days ago
0.87.0 released - 9 days ago
openjdk CNB releases
v1.0.0-M7 released - Apr 10
v1.0.0-M6 released - Apr 1
v1.0.0-M5 released - Jan 31
v1.0.0-M4 released - Jan 16
v1.0.0-M3 released - Dec 10
v1.0.0-M2 released - Nov 29
source:
git:
https://github.com/myapp
revision: dev
Build # 1
Build # 2
Build # 3
Latest Build

54. ●

55. https://content.pivotal.io/blog/cloud-native-buildpacks-for-kubernetes-and-beyond

56. https://www.youtube.com/watch?v=8IC_WSe7YFo
https://pivotal.io/pivotal-build-service

57. https://www.youtube.com/watch?v=J2SXkmOo8iQ

59. https://spring.io/projects/spring-cloud-kubernetes

60. ●
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