セッション時に使用したデモ環境(KubeVela)の構築手順および資材置き場です。
環境は、Oracle Cloud Infrastructure（OCI）前提です。
コンピュートで以下のインスタンスを作成します。
- Compute
- VM.Standard.E4.Flex
- OCPU x 1
- MEM 16GB
- OS
- Ubuntu 22.24
Set up Docker's apt repository.
sudo apt-get updatesudo apt-get install ca-certificates curlsudo install -m 0755 -d /etc/apt/keyringssudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.ascsudo chmod a+r /etc/apt/keyrings/docker.ascAdd the repository to Apt sources
echo \
"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
sudo tee /etc/apt/sources.list.d/docker.list > /dev/nullsudo apt-get updateInstall the Docker packages
sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-pluginDocker Group Configure
sudo usermod -aG docker ubuntunewgrp dockerdocker run hello-worldcurl -LO "https://dl.k8s.io/release/$(curl -LS https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"chmod +x ./kubectlsudo mv ./kubectl /usr/local/bin/kubectlkubectl version --client[ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.20.0/kind-linux-amd64chmod +x ./kindsudo mv ./kind /usr/local/bin/kindcat <<EOF > kind-cluster-config.yaml
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
- role: worker
- role: worker
EOFkind create cluster --config kind-cluster-config.yamlkubectl get nodesNAME STATUS ROLES AGE VERSION
kind-control-plane Ready control-plane 60s v1.27.3
kind-worker Ready <none> 27s v1.27.3
kind-worker2 Ready <none> 29s v1.27.3curl -fsSl https://kubevela.io/script/install.sh | bashvela versionCLI Version: 1.9.13
Core Version:
GitRevision: git-d56da069
GolangVersion: go1.19.13vela install.
.
.
KubeVela control plane has been successfully set up on your cluster.
If you want to enable dashboard, please run "vela addon enable velaux"ダッシュボード有効化
vela addon enable velauxAddon velaux enabled successfully.
Please access addon-velaux from the following endpoints:
+---------+---------------+-----------------------------------+--------------------------------+-------+
| CLUSTER | COMPONENT | REF(KIND/NAMESPACE/NAME) | ENDPOINT | INNER |
+---------+---------------+-----------------------------------+--------------------------------+-------+
| local | velaux-server | Service/vela-system/velaux-server | velaux-server.vela-system:8000 | true |
+---------+---------------+-----------------------------------+--------------------------------+-------+
To open the dashboard directly by port-forward:
vela port-forward -n vela-system addon-velaux 8000:8000
Please refer to https://kubevela.io/docs/reference/addons/velaux for more VelaUX addon installation and visiting method.新規にターミナルを起動後、以下コマンドを実行
vela port-forward -n vela-system addon-velaux 8080:8000ブラウザ画面で、任意のアカウント名、パスワード、メールアドレスを設定、設定後、そのアカウント名とパスワードでログイン。
sample manifest
apiVersion: core.oam.dev/v1beta1
kind: Application
metadata:
name: first-vela-app
spec:
components:
- name: express-server
type: webservice
properties:
image: oamdev/hello-world
ports:
- port: 8000
expose: true
traits:
- type: scaler
properties:
replicas: 1
policies:
- name: target-default
type: topology
properties:
# The cluster with name local is installed the KubeVela.
clusters: ["local"]
namespace: "default"
- name: target-prod
type: topology
properties:
clusters: ["local"]
# This namespace must be created before deploying.
namespace: "prod"
- name: deploy-ha
type: override
properties:
components:
- type: webservice
traits:
- type: scaler
properties:
replicas: 2
workflow:
steps:
- name: deploy2default
type: deploy
properties:
policies: ["target-default"]
- name: manual-approval
type: suspend
- name: deploy2prod
type: deploy
properties:
policies: ["target-prod", "deploy-ha"]prod namespace create
vela env init prod --namespace prodenvironment prod with namespace prod createdmanifest apply
vela up -f https://kubevela.net/example/applications/first-app.yamlApplying an application in vela K8s object format...
✅ App has been deployed 🚀🚀🚀
Port forward: vela port-forward first-vela-app -n prod
SSH: vela exec first-vela-app -n prod
Logging: vela logs first-vela-app -n prod
App status: vela status first-vela-app -n prod
Endpoint: vela status first-vela-app -n prod --endpoint
Application prod/first-vela-app applied.ステータス確認 default ネームスペースにデプロイされていることを確認
vela status first-vela-appAbout:
Name: first-vela-app
Namespace: prod
Created at: 2024-10-29 06:57:13 +0000 UTC
Status: workflowSuspending
Workflow:
mode: StepByStep-DAG
finished: false
Suspend: true
Terminated: false
Steps
- id: door8vxa5q
name: deploy2default
type: deploy
phase: succeeded
- id: pyz97kzrju
name: manual-approval
type: suspend
phase: suspending
message: Suspended by field suspend
Services:
- Name: express-server
Cluster: local Namespace: default
Type: webservice
Healthy Ready:1/1
Traits:
✅ scalerdefault namespace のアプリケーションをブラウザで確認 新規ターミナルを起動して、以下コマンドを実行
vela port-forward first-vela-app 8000:8000手動承認コマンド実行
vela workflow resume first-vela-appステータス確認 prod ネームスペースにデプロイされていることを確認
vela status first-vela-appAbout:
Name: first-vela-app
Namespace: prod
Created at: 2024-10-29 06:57:13 +0000 UTC
Status: running
Workflow:
mode: StepByStep-DAG
finished: true
Suspend: false
Terminated: false
Steps
- id: door8vxa5q
name: deploy2default
type: deploy
phase: succeeded
- id: pyz97kzrju
name: manual-approval
type: suspend
phase: succeeded
- id: i4z8vqj559
name: deploy2prod
type: deploy
phase: succeeded
Services:
- Name: express-server
Cluster: local Namespace: prod
Type: webservice
Healthy Ready:2/2
Traits:
✅ scaler
- Name: express-server
Cluster: local Namespace: default
Type: webservice
Healthy Ready:1/1
Traits:
✅ scalerポートフォワーディング（ポート番号:8080）しているので、ダッシュボードから可視化された状態で確認可能
ポートフォワーディング（ポート番号:8000）からブラウザで、デプロイされているアプリケーションの確認
アプリケーションの削除
vela delete first-vela-appAre you sure to delete the application prod/first-vela-app (y/n)y
Start deleting appplication prod/first-vela-app
Delete appplication prod/first-vela-app succeeded