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kubevela/docs/install.md
Hongchao Deng 86f05cf47a minor update (#514)
the copy-paste friendly thing could be handled on website.
2020-11-05 12:09:51 -08:00

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# Install KubeVela
## 1. Setup local k8s cluster
- Kubernetes cluster >= v1.15.0
- kubectl installed and configured
You may pick either Minikube or KinD as local cluster testing option.
### Minikube
Follow the minikube [installation guide](https://minikube.sigs.k8s.io/docs/start/).
Once minikube is installed, create a cluster:
```console
$ minikube start
```
Install ingress:
```console
$ minikube addons enable ingress
```
### KinD
Follow [this guide](https://kind.sigs.k8s.io/docs/user/quick-start/#installation) to install kind.
Then spins up a kind cluster:
```console
cat <<EOF | kind create cluster --config=-
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
- role: control-plane
kubeadmConfigPatches:
- |
kind: InitConfiguration
nodeRegistration:
kubeletExtraArgs:
node-labels: "ingress-ready=true"
extraPortMappings:
- containerPort: 80
hostPort: 80
protocol: TCP
- containerPort: 443
hostPort: 443
protocol: TCP
EOF
```
Then install [ingress for kind](https://kind.sigs.k8s.io/docs/user/ingress/#ingress-nginx):
```console
$ kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/master/deploy/static/provider/kind/deploy.yaml
```
## 2. Get KubeVela
1. Download the latest `vela` binary from the [releases page](https://github.com/oam-dev/kubevela/releases).
2. Unpack the `vela` binary and add it to `$PATH` to get started.
```console
$ sudo mv ./vela /usr/local/bin/vela
```
## 3. Initialize KubeVela
Run:
```console
$ vela install
```
This will install KubeVela server component and its dependency components.
## 4. Verify
Check Vela Helm Chart has been installed:
```
$ helm list -n vela-system
NAME NAMESPACE REVISION ...
kubevela vela-system 1 ...
```
Later on, check that the dependency components has been installed:
```
$ helm list --all-namespaces
NAME NAMESPACE REVISION ...
cert-manager cert-manager 1 ...
flagger vela-system 1
kube-prometheus-stack monitoring 1
...
```
**Voila!** You are all set to go.
## Clean Up
Run:
```console
$ helm uninstall -n vela-system kubevela
$ rm -r ~/.vela
```
This will uninstall KubeVela server component and its dependency components.
This also cleans up local CLI cache.
Then clean up CRDs (CRDs are not removed via helm by default):
```
$ kubectl delete crd \
applicationconfigurations.core.oam.dev \
applicationdeployments.core.oam.dev \
autoscalers.standard.oam.dev \
certificaterequests.cert-manager.io \
certificates.cert-manager.io \
challenges.acme.cert-manager.io \
clusterissuers.cert-manager.io \
components.core.oam.dev \
containerizedworkloads.core.oam.dev \
healthscopes.core.oam.dev \
issuers.cert-manager.io \
manualscalertraits.core.oam.dev \
metricstraits.standard.oam.dev \
orders.acme.cert-manager.io \
podspecworkloads.standard.oam.dev \
routes.standard.oam.dev \
scopedefinitions.core.oam.dev \
servicemonitors.monitoring.coreos.com \
traitdefinitions.core.oam.dev \
workloaddefinitions.core.oam.dev
```
## [Optional] Add/Update Dependencies
We have installed the following dependency components along with Vela server component:
- [Prometheus Stack](https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack)
- [Cert-manager](https://cert-manager.io/)
- [Flagger](https://flagger.app/)
> NOTE: If you are not using minikube or kind, please make sure to [install ingress-nginx](https://kubernetes.github.io/ingress-nginx/deploy/) by yourself.
The config has been saved in a ConfigMap in "vela-system/vela-config":
```
$ kubectl -n vela-system get cm vela-config -o yaml
apiVersion: v1
data:
certificates.cert-manager.io: |
{
"repo": "jetstack",
"urL": "https://charts.jetstack.io",
"name": "cert-manager",
"namespace": "cert-manager",
"version": "1.0.3"
}
flagger.app: |
...
kind: ConfigMap
```
User can specify their own dependencies by editing the `vela-config` ConfigMap.
Currently adding new chart or updating existing chart requires redeploying Vela:
```
$ kubectl -n vela-system edit cm vela-config
...
$ helm uninstall -n vela-system kubevela
$ helm install -n vela-system kubevela
```