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55 lines
4.3 KiB
55 lines
4.3 KiB
local kp = (import 'kube-prometheus/main.libsonnet') +
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(import 'kube-prometheus/addons/static-etcd.libsonnet') + {
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values+:: {
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common+: {
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namespace: 'monitoring',
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},
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// Reference info: https://github.com/coreos/kube-prometheus/blob/master/README.md#static-etcd-configuration
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etcd+: {
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// Configure this to be the IP(s) to scrape - i.e. your etcd node(s) (use commas to separate multiple values).
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ips: ['127.0.0.1'],
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// Reference info:
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// * https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#servicemonitorspec (has endpoints)
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// * https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#endpoint (has tlsConfig)
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// * https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#tlsconfig (has: caFile, certFile, keyFile, serverName, & insecureSkipVerify)
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// Set these three variables to the fully qualified directory path on your work machine to the certificate files that are valid to scrape etcd metrics with (check the apiserver container).
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// Most likely these certificates are generated somewhere in an infrastructure repository, so using the jsonnet `importstr` function can
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// be useful here. (Kube-aws stores these three files inside the credential folder.)
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// All the sensitive information on the certificates will end up in a Kubernetes Secret.
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clientCA: importstr 'etcd-client-ca.crt',
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clientKey: importstr 'etcd-client.key',
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clientCert: importstr 'etcd-client.crt',
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// Note that you should specify a value EITHER for 'serverName' OR for 'insecureSkipVerify'. (Don't specify a value for both of them, and don't specify a value for neither of them.)
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// * Specifying serverName: Ideally you should provide a valid value for serverName (and then insecureSkipVerify should be left as false - so that serverName gets used).
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// * Specifying insecureSkipVerify: insecureSkipVerify is only to be used (i.e. set to true) if you cannot (based on how your etcd certificates were created) use a Subject Alternative Name.
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// * If you specify a value:
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// ** for both of these variables: When 'insecureSkipVerify: true' is specified, then also specifying a value for serverName won't hurt anything but it will be ignored.
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// ** for neither of these variables: then you'll get authentication errors on the prom '/targets' page with your etcd targets.
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// A valid name (DNS or Subject Alternative Name) that the client (i.e. prometheus) will use to verify the etcd TLS certificate.
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// * Note that doing `nslookup etcd.kube-system.svc.cluster.local` (on a pod in a K8s cluster where kube-prometheus has been installed) shows that kube-prometheus sets up this hostname.
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// * `openssl x509 -noout -text -in etcd-client.pem` will print the Subject Alternative Names.
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serverName: 'etcd.kube-system.svc.cluster.local',
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// When insecureSkipVerify isn't specified, the default value is "false".
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//insecureSkipVerify: true,
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// In case you have generated the etcd certificate with kube-aws:
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// * If you only have one etcd node, you can use the value from 'etcd.internalDomainName' (specified in your kube-aws cluster.yaml) as the value for 'serverName'.
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// * But if you have multiple etcd nodes, you will need to use 'insecureSkipVerify: true' (if using default certificate generators method), as the valid certificate domain
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// will be different for each etcd node. (kube-aws default certificates are not valid against the IP - they were created for the DNS.)
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},
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},
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};
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{ ['00namespace-' + name]: kp.kubePrometheus[name] for name in std.objectFields(kp.kubePrometheus) } +
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{ ['0prometheus-operator-' + name]: kp.prometheusOperator[name] for name in std.objectFields(kp.prometheusOperator) } +
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{ ['node-exporter-' + name]: kp.nodeExporter[name] for name in std.objectFields(kp.nodeExporter) } +
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{ ['kube-state-metrics-' + name]: kp.kubeStateMetrics[name] for name in std.objectFields(kp.kubeStateMetrics) } +
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{ ['alertmanager-' + name]: kp.alertmanager[name] for name in std.objectFields(kp.alertmanager) } +
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{ ['prometheus-' + name]: kp.prometheus[name] for name in std.objectFields(kp.prometheus) } +
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{ ['grafana-' + name]: kp.grafana[name] for name in std.objectFields(kp.grafana) }
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