Flux

The latest version of Flux brings many new features, making it more flexible and versatile.

デプロイ方法: 作成するリソース

flux-system: 本体

flux CRD: 以下の2つをKustomization形式で書く

GitRepository

同期するリポジトリ

HelmRepository

Helm でインスtーるするアプリ

Exmaple

code: 構成.txt

my-k8s-gitops/

├── apps/

│ ├── base/

│ │ └── ollama/

│ │ ├── source.yaml

│ │ ├── release.yaml

│ │ └── kustomization.yaml

│ └── overlays/

│ ├── dev/

│ │ └── ollama/

│ │ ├── kustomization.yaml

│ │ └── values.yaml

│ ├── stg/

│ │ └── ollama/

│ │ ├── kustomization.yaml

│ │ └── values.yaml

│ └── prod/

│ └── ollama/

│ ├── kustomization.yaml

│ └── values.yaml

└── clusters/

├── dev/

│ └── apps.yaml

├── stg/

│ └── apps.yaml

└── prod/

└── apps.yaml

code: (bash)

# 全てのクラスターで実行

flux create source git flux-system \

--branch=main \

--interval=1m

# devクラスターで実行

flux create kustomization cluster \

--source=flux-system \

--path="./clusters/dev" \

--prune=true \

--interval=5m

app環境ごとの設定

code: clusters/dev/app.yaml

apiVersion: kustomize.toolkit.fluxcd.io/v1

kind: Kustomization

metadata:

name: apps

namespace: flux-system

spec:

interval: 5m

path: ./apps/overlays/dev

prune: true

sourceRef:

kind: GitRepository

name: flux-system

postBuild:

substitute:

ENVIRONMENT: dev

code: app/ollama/release.yaml

apiVersion: helm.toolkit.fluxcd.io/v2

kind: HelmRelease

metadata:

name: ollama

namespace: flux-system

spec:

interval: 10m

targetNamespace: ollama

chart:

spec:

chart: ollama # チャート名のみ

sourceRef:

kind: HelmRepository

name: bitnami install:

createNamespace: true

values:

replicaCount: ${REPLICA_COUNT}

他のアプリ追加

code: (bash)

# 例: nginxを追加

mkdir -p apps/nginx

cat <<EOF > apps/nginx/source.yaml

apiVersion: source.toolkit.fluxcd.io/v1

kind: HelmRepository

metadata:

name: bitnami

namespace: flux-system

spec:

interval: 10m

EOF

cat <<EOF > apps/nginx/release.yaml

apiVersion: helm.toolkit.fluxcd.io/v2

kind: HelmRelease

metadata:

name: nginx

namespace: flux-system

spec:

interval: 10m

targetNamespace: nginx

chart:

spec:

chart: nginx

sourceRef:

kind: HelmRepository

name: bitnami

install:

createNamespace: true

EOF

CLI

code: (bash)

# 同期: 特定アプリ

flux reconcile helmrelease ollama