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90 lines
2.1 KiB
Markdown
90 lines
2.1 KiB
Markdown
# Flagger Kustomize installer
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As an alternative to Helm, Flagger can be installed with Kustomize.
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## Service mesh specific installers
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Install Flagger for Istio:
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```bash
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kubectl apply -k github.com/weaveworks/flagger/kustomize/istio
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```
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This deploys Flagger in the `istio-system` namespace and sets the metrics server URL to `http://prometheus.istio-system:9090`.
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Install Flagger for Linkerd:
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```bash
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kubectl apply -k github.com/weaveworks/flagger/kustomize/linkerd
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```
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This deploys Flagger in the `linkerd` namespace and sets the metrics server URL to `http://linkerd-prometheus.linkerd:9090`.
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## Generic installer
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Install Flagger and Prometheus:
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```bash
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kubectl apply -k github.com/weaveworks/flagger/kustomize/kubernetes
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```
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This deploys Flagger and Prometheus in the `flagger-system` namespace,
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sets the metrics server URL to `http://flagger-prometheus.flagger-system:9090` and the mesh provider to `kubernetes`.
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To target a specific provider you need to specify it in the canary custom resource:
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```yaml
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apiVersion: flagger.app/v1alpha3
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kind: Canary
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metadata:
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name: app
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namespace: test
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spec:
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# can be: kubernetes, istio, appmesh, linkerd, smi, nginx, gloo, supergloo
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# use the kubernetes provider for Blue/Green style deployments
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provider: nginx
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```
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## Customized installer
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Create a kustomization file using flagger as base:
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```bash
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cat > kustomization.yaml <<EOF
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namespace: istio-system
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bases:
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- github.com/weaveworks/flagger/kustomize/base/flagger
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patchesStrategicMerge:
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- patch.yaml
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EOF
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```
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Create a patch and enable Slack notifications by setting the slack channel and hook URL:
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```bash
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cat > patch.yaml <<EOF
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: flagger
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spec:
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template:
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spec:
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containers:
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- name: flagger
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args:
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- -mesh-provider=istio
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- -metrics-server=http://prometheus.istio-system:9090
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- -slack-user=flagger
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- -slack-channel=alerts
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- -slack-url=https://hooks.slack.com/services/YOUR/SLACK/WEBHOOK
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EOF
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```
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Install Flagger with Slack:
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```bash
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kubectl apply -k .
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```
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