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https://docs.microsoft.com/ko-kr/learn/modules/aks-app-package-management-using-helm/2-what-is-helm |
Helm
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구성
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- Charts
yaml 파일을 묶어서 정의한 package입니다. kubernetes app 빌드를 위한 리소스가 정의되어 있습니다. - Repository
생성된 차트들의 저장소입니다. - Release
kubernetes 클러스터에 로드된 chart instance들의 버전입니다. chart로 배포된 app들은 각각 고유한 버전을 갖고 있습니다.
Helm Chart
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Helm
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Repository
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Helm
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Release
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Helm은 차트를 어떻게 처리하나요?
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Helm 설치
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sansae@workspace-win10:/mnt/c/apps$ curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3
sansae@workspace-win10:/mnt/c/apps$ chmod 700 get_helm.sh
sansae@workspace-win10:/mnt/c/apps$ ./get_helm.sh
Downloading https://get.helm.sh/helm-v3.7.1-linux-amd64.tar.gz
Verifying checksum... Done.
Preparing to install helm into /usr/local/bin
[sudo] password for sansae:
helm installed into /usr/local/bin/helm
sansae@workspace-win10:/mnt/c/apps$ |
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sansae@workspace-win10:/mnt/c/apps$ helm version
version.BuildInfo{Version:"v3.7.1", GitCommit:"1d11fcb5d3f3bf00dbe6fe31b8412839a96b3dc4", GitTreeState:"clean", GoVersion:"go1.16.9"} |
Helm 사용하기
Helm 차트를 사용하기 위해 차트 repository를 추가 합니다.
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sansae@workspace-win10:/mnt/c/apps$ helm repo add stable https://charts.helm.sh/stable
"stable" has been added to your repositories |
추가된 Repository를 확인 합니다.
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sansae@workspace-win10:/mnt/c/apps$ helm repo list |
추가된 Repository에 어떤 Charts가 있는지 확인 합니다.
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sansae@workspace-win10:/mnt/c/apps$ helm search repo stable
NAME CHART VERSION APP VERSION DESCRIPTION
stable/acs-engine-autoscaler 2.2.2 2.1.1 DEPRECATED Scales worker nodes within agent pools
stable/aerospike 0.3.5 v4.5.0.5 DEPRECATED A Helm chart for Aerospike in Kubern...
stable/airflow 7.13.3 1.10.12 DEPRECATED - please use: https://github.com/air...
stable/ambassador 5.3.2 0.86.1 DEPRECATED A Helm chart for Datawire Ambassador
stable/anchore-engine 1.7.0 0.7.3 Anchore container analysis and policy evaluatio...
stable/apm-server 2.1.7 7.0.0 DEPRECATED The server receives data from the El...
stable/ark 4.2.2 0.10.2 DEPRECATED A Helm chart for ark
stable/artifactory 7.3.2 6.1.0 DEPRECATED Universal Repository Manager support...
stable/artifactory-ha 0.4.2 6.2.0 DEPRECATED Universal Repository Manager support...
~~~~~~~~~~ 생략 ~~~~~~~~~~~~ |
Helm Repository Update
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sansae@workspace-win10:/mnt/c/apps$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈Happy Helming!⎈
sansae@workspace-win10:/mnt/c/apps$ |
Package 설치 하기
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$ kubectl create namespace db
$ helm install postgresql-v1 stable/postgresql --namespace db
$ helm status postgresql-v1 |
Upgrade & Rollback
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$ helm upgrade postgresql-v1 stable/postgresql --namespace db
$ helm history postgresql-v1 --namespace db
$ helm rollback postgresql-v1 1 --namespace db |
Release 삭제하기
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$ helm uninstall postgresql-v1 --namespace db |