Stéphane Tailland
6d020572e0
k8s/secret.yaml held the Grafana admin credentials and, since the MCP server landed, its service account token — gitignored, so deploying this stack required the right file to exist on the right laptop. It now comes from Vault through External Secrets, and nothing sensitive has to exist locally. A dedicated store rather than reusing vault-kong-v2: that one's AppRole carries kong-v2-readonly, scoped to secrets/data/kong-v2/*, so it cannot see this path — confirmed with a probe ExternalSecret that failed with "could not get secret data from provider". Widening that policy would have handed the Kong reader observability's secrets for no reason. So observability-readonly and observability-eso were created in Vault, mirroring the existing pattern exactly. The AppRole credentials stay out of git; the ClusterSecretStore comments carry the commands that mint them. dataFrom.extract pulls the whole path instead of naming each key, so a new key in Vault reaches the cluster with no edit here. The target keeps the name every consumer already uses, so neither the Grafana Deployment nor mcp-grafana changed — verified, neither pod restarted and the token in the cluster matches Vault byte for byte. secret.example.yaml no longer describes a file to create; it documents where the keys live and how the Grafana token is minted. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
24 lines
809 B
YAML
24 lines
809 B
YAML
# Replaces the gitignored k8s/secret.yaml: the Grafana admin credentials and
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# the service account token the MCP server authenticates with now come from
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# Vault, so nothing sensitive has to exist on a laptop to deploy this stack.
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#
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# The target keeps the name every consumer already uses, so neither the Grafana
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# Deployment nor mcp-grafana changes.
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apiVersion: external-secrets.io/v1
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kind: ExternalSecret
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metadata:
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name: observability-secrets
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spec:
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refreshInterval: 1h
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secretStoreRef:
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kind: ClusterSecretStore
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name: vault-observability
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target:
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name: observability-secrets
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creationPolicy: Owner
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dataFrom:
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# Whole-secret pull rather than key-by-key: adding a key in Vault then
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# reaches the cluster without editing this file.
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- extract:
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key: observability/grafana
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