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contrib/kube: Add rbac role to discover prometheus

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The current example-app setup in the kube-prometheus project is able to
discover scraping targets in the default namespace. It is not able to
discover the configured Alertmanager in the monitoring namespace.

This patch adds an alertmanager-discovery rbac role, to permit the
above described action. In addition it does the following cleanups:

- Remove kubeconfig configuration in deploy and teardown script. kubectl
chooses .kube/config whenever KUBECONFIG is not set by default

- Remove namespace specification option via NAMESPACE env var. In most
of the manifests the metadata/namespace was hardcoded anyways, in
addition in the promtheus frontend role binding the service account
namespace is hardcoded to default as well.

- Instead of `kubectl {apply,delete}` individual manifests, the deploy
and teardown shell scripts {apply,delete} on the entire folder.
This commit is contained in:
Max Leonard Inden
2018-03-19 17:03:42 +01:00
parent 2f302943fe
commit 310f471cf6
8 changed files with 33 additions and 27 deletions
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17
hack/example-service-monitoring/deploy
View File

@@ -1,18 +1,3 @@
#!/usr/bin/env bash
if [ -z "${KUBECONFIG}" ]; then
KUBECONFIG=~/.kube/config
fi
if [ -z "${NAMESPACE}" ]; then
NAMESPACE=default
fi
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/prometheus-frontend-service-account.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/prometheus-frontend-role.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/prometheus-frontend-role-binding.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/prometheus-frontend-svc.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/example-app.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/prometheus-frontend.yaml
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" apply -f manifests/examples/example-app/servicemonitor-frontend.yaml
kubectl apply -f manifests/examples/example-app

11
hack/example-service-monitoring/teardown
View File

@@ -1,12 +1,3 @@
#!/usr/bin/env bash
if [ -z "${KUBECONFIG}" ]; then
KUBECONFIG=~/.kube/config
fi
if [ -z "${NAMESPACE}" ]; then
NAMESPACE=default
fi
kubectl --namespace "$NAMESPACE" --kubeconfig="$KUBECONFIG" delete -f manifests/examples/example-app
kubectl delete -f manifests/examples/example-app