ウェビナーではKubernetesのおさらいとその欠点を確認した後に、それを克服するためにどのようにHelmが誕生したかについてご紹介しました。また本題であるHelmの基礎的内容、３つのコアコンセプトの後、実際にHelmを使ってKubernetesベースのアプリケーションをHelmベースのアプリケーションに移行するための簡単なデモをご覧いただきました。

1. Helm

2. 2
§
§ Sr. DevOps Acceleration Engineer @JFrog
§ DevOps Liquid Software
§
@tsuyoshi_miyake
miyaket@jfrog.com

3. 3
§ Webinar
Ø
§
§ Q&A
Ø
Ø Chat

4. Kubernetes
Helm
Helm
Helm
Q&A
4

5. 5
Helm
Helm

6. 6
Helm Kubernetes
Helm 3
Helm 2

7. Kubernetes
7

8. Kubernetes
8
•
• Pod
• Service
• Ingress
• Secret
• ConfigMap
• PV (PersistentVolume)
• PVC (PersistentVolumeClaim)

9. 9
•
•
•
•

10. Kubernetes
10
source: Delve into Helm - Advanced DevOps

11. Helm
11

12. Helm Kubernetes
Kubernetes
12
Photo by David Ramírez on Unsplash

13. 13
maven jar, war, ear
npm node module
pip python package
go go module
apt deb package
yum rpm package
Kubernetes helm (helm) chart

14. Helm
14
• (Chart)
• Release

15. Helm
15
Helm Chart Helm Chart
3-way
Chart
(helm rollback)
Release

16. 16 source: https://rimusz.net/the-little-story-how-helm-was-born

17. 2016
2015/10
Helm
Helm
17
2017 2018 2019 2020
2016/03
Kubernetes
to CNCF
2016/01
Helm v2
2016/11
Helm v2
2017/Q4
Helm v3
2018/06
Helm
to CNCF
2019/11
Helm v3
source: An Introduction to Helm - Matt Farina, Samsung SDS & Josh Dolitsky, Blood Orange

18. Helm
18

19. Helm - Chart
§ Chart Kubernetes Helm
§ Kubernetes
§ : jenkins Chart
§ Homebrew formula Yum RPM Kubernetes
§ Chart
§ Kubernetes
19

20. Helm
§ Chart Web
Helm
§ : Jenkins Helm https://charts.jenkins.io
20

21. Helm Release
§ Release Kubernetes Chart
§ : jenkins Release
§
§ Release
§ Release Release
Release
21

22. 22
Photo by David Ramírez on Unsplash
Helm Chart Kubernetes
Release Release
Secret

23. Helm
23

24. Helm
§ Helm
§
§ Chart
§
§ Chart Pull
§ Release
§ Release
24

25. Helm Chart
25
Chart YAML
Chart
Chart Chart
K8s
_
K8s

26. Helm (1/4)
26
Chart
$ helm repo add center https://repo.chartcenter.io
Chart Chart
$ helm repo update
Chart
$ helm repo list

27. Helm (2/4)
27
Chart
$ helm upgrade artifactory-ha --install --namespace artifactory-ha -f
artifactory-values.yaml center/jfrog/artifactory-ha
Helm Release
$ helm list --namespace artifactory-ha
Release
$ helm uninstall artifactory-ha --namespace artifactory-ha

28. Helm (3/4)
28
Chart
$ helm search repo center
Chart
$ helm pull center/jfrog/artifactory-ha
Chart
$ helm dependency update

29. Helm (4/4)
29
Chart chart, readme, values
$ helm show readme center/jfrog/artifactory-ha
Release History
$ helm history artifactory-ha -n artifactory-ha
REVISION UPDATED STATUS CHART APP VERSION DESCRIPTION
1 Tue Mar 2 22:39:20 2021 superseded artifactory-ha-4.9.17.15.3 Install complete
2 Tue Mar 2 23:00:54 2021 deployed artifactory-ha-4.9.17.15.3 Upgrade complete

31. Q&A

32. THANK YOU!