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feat(grafana-agent): add grafana-agent (#36)
* feat(grafana-agent): add grafana-agent * style(grafana-agent): jsonnetfmt * test(grafana-agent): add test --------- Co-authored-by: Michael Riedmann <michael.riedmann@cloudflight.io>
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| @@ -1,2 +1,3 @@ | ||
| *.jsonnet text=auto eol=lf | ||
| *.libsonnet text=auto eol=lf | ||
| *.river text=auto eol=lf |
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| @@ -0,0 +1,28 @@ | ||
| logging { | ||
| level = "info" | ||
| format = "logfmt" | ||
| } | ||
|
|
||
| discovery.kubernetes "pods" { | ||
| role = "pod" | ||
| } | ||
|
|
||
| discovery.kubernetes "nodes" { | ||
| role = "node" | ||
| } | ||
|
|
||
| discovery.kubernetes "services" { | ||
| role = "service" | ||
| } | ||
|
|
||
| discovery.kubernetes "endpoints" { | ||
| role = "endpoints" | ||
| } | ||
|
|
||
| discovery.kubernetes "endpointslices" { | ||
| role = "endpointslice" | ||
| } | ||
|
|
||
| discovery.kubernetes "ingresses" { | ||
| role = "ingress" | ||
| } |
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|---|---|---|
| @@ -0,0 +1,215 @@ | ||
| local k = (import '../../prelude.libsonnet'); | ||
|
|
||
| { | ||
| _config+:: { | ||
| // begin_config | ||
| grafanaAgent: { | ||
| image: 'docker.io/grafana/agent:v0.36.1', | ||
| }, | ||
| // end_config | ||
| }, | ||
| newGrafanaAgent(config={}):: { | ||
| local this = self, | ||
|
|
||
| local cfg = $._config.grafanaAgent + config, | ||
| local deployment = k.apps.v1.deployment, | ||
| local container = k.core.v1.container, | ||
| local port = k.core.v1.containerPort, | ||
| local volumeMount = k.core.v1.volumeMount, | ||
| local volume = k.core.v1.volume, | ||
| local secret = k.core.v1.secret, | ||
| local cm = k.core.v1.configMap, | ||
| local pvc = k.core.v1.persistentVolumeClaim, | ||
| local is = k.image.v1.imageStream, | ||
| local sa = k.core.v1.serviceAccount, | ||
| local cr = k.rbac.v1.clusterRole, | ||
| local crb = k.rbac.v1.clusterRoleBinding, | ||
| local ds = k.apps.v1.daemonSet, | ||
| local service = k.core.v1.service, | ||
|
|
||
| local defaultSelectorLabels = { | ||
| 'app.kubernetes.io/name': 'grafana-agent', | ||
| 'app.kubernetes.io/instance': 'grafana-agent', | ||
| }, | ||
|
|
||
| local defaultLabels = defaultSelectorLabels { | ||
| 'app.kubernetes.io/version': 'v0.36.1', | ||
| }, | ||
|
|
||
| serviceaccount: sa.new('grafana-agent') | ||
| + sa.metadata.withLabelsMixin(defaultLabels), | ||
| configmap: cm.new('grafana-agent') | ||
| + cm.metadata.withLabelsMixin(defaultLabels) | ||
| + cm.withData({ | ||
| 'config.river': (importstr 'config.river'), | ||
| }), | ||
| rbac_clusterrole: cr.new('grafana-agent') | ||
| + cr.metadata.withLabelsMixin(defaultLabels) | ||
| + cr.withRules([ | ||
| { | ||
| apiGroups: [ | ||
| '', | ||
| 'discovery.k8s.io', | ||
| 'networking.k8s.io', | ||
| ], | ||
| resources: [ | ||
| 'endpoints', | ||
| 'endpointslices', | ||
| 'ingresses', | ||
| 'nodes', | ||
| 'nodes/proxy', | ||
| 'nodes/metrics', | ||
| 'pods', | ||
| 'services', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| { | ||
| apiGroups: [ | ||
| '', | ||
| ], | ||
| resources: [ | ||
| 'pods', | ||
| 'pods/log', | ||
| 'namespaces', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| { | ||
| apiGroups: [ | ||
| 'monitoring.grafana.com', | ||
| ], | ||
| resources: [ | ||
| 'podlogs', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| { | ||
| apiGroups: [ | ||
| 'monitoring.coreos.com', | ||
| ], | ||
| resources: [ | ||
| 'prometheusrules', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| { | ||
| nonResourceURLs: [ | ||
| '/metrics', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| ], | ||
| }, | ||
| { | ||
| apiGroups: [ | ||
| 'monitoring.coreos.com', | ||
| ], | ||
| resources: [ | ||
| 'podmonitors', | ||
| 'servicemonitors', | ||
| 'probes', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| { | ||
| apiGroups: [ | ||
| '', | ||
| ], | ||
| resources: [ | ||
| 'events', | ||
| ], | ||
| verbs: [ | ||
| 'get', | ||
| 'list', | ||
| 'watch', | ||
| ], | ||
| }, | ||
| ]), | ||
| rbac_clusterrolebinding: crb.new('grafana-agent') | ||
| + crb.metadata.withLabelsMixin(defaultLabels) | ||
| + crb.roleRef.withApiGroup('rbac.authorization.k8s.io') | ||
| + crb.roleRef.withKind('ClusterRole') | ||
| + crb.roleRef.withName('grafana-agent') | ||
| + crb.withSubjects([ | ||
| { | ||
| kind: 'ServiceAccount', | ||
| name: 'grafana-agent', | ||
| namespace: 'default', | ||
| }, | ||
| ]), | ||
| daemonset: ds.new('grafana-agent', containers=[ | ||
| container.new(name='grafana-agent', image=cfg.image) | ||
| + container.withPorts([ | ||
| port.new('http-metrics', 80), | ||
| ]) | ||
| + container.withVolumeMounts([ | ||
| volumeMount.new(name='config', mountPath='/etc/agent'), | ||
| ]) | ||
| + container.withEnvMap({ | ||
| AGENT_MODE: 'flow', | ||
| }) | ||
| + container.withEnvMixin([ | ||
| { | ||
| name: 'HOSTNAME', | ||
| valueFrom: { | ||
| fieldRef: { | ||
| fieldPath: 'spec.nodeName', | ||
| }, | ||
| }, | ||
| }, | ||
| ]) | ||
| + container.readinessProbe.withInitialDelaySeconds(10) | ||
| + container.readinessProbe.withTimeoutSeconds(1) | ||
| + container.readinessProbe.httpGet.withPath('/-/ready') | ||
| + container.readinessProbe.httpGet.withPort(80) | ||
| + container.withArgs([ | ||
| 'run', | ||
| '/etc/agent/config.river', | ||
| '--storage.path=/tmp/agent', | ||
| '--server.http.listen-addr=0.0.0.0:80', | ||
| ]), | ||
| container.new(name='config-reloader', image='docker.io/jimmidyson/configmap-reload:v0.8.0') | ||
| + container.withArgs([ | ||
| '--volume-dir=/etc/agent', | ||
| '--webhook-url=http://localhost:80/-/reload', | ||
| ]) | ||
| + container.withVolumeMounts( | ||
| volumeMount.new(name='config', mountPath='/etc/agent'), | ||
| ) | ||
| + container.resources.withRequests({ cpu: '1m', memory: '5Mi' }), | ||
| ]) | ||
| + ds.metadata.withLabelsMixin(defaultLabels) | ||
| + ds.spec.withMinReadySeconds(10) | ||
| + ds.spec.template.metadata.withLabelsMixin(defaultSelectorLabels) | ||
| + ds.spec.template.spec.withServiceAccountName('grafana-agent') | ||
| + ds.spec.template.spec.withDnsPolicy('ClusterFirst') | ||
| + ds.spec.template.spec.withVolumes([ | ||
| volume.fromConfigMap('config', self.configmap.metadata.name), | ||
| ]), | ||
| service: k.util.serviceFor(self.daemonset) | ||
| + service.metadata.withLabelsMixin(defaultLabels), | ||
| }, | ||
|
|
||
| grafanaAgent: self.newGrafanaAgent(), | ||
| } |
8 changes: 8 additions & 0 deletions
8
tests/environments/test-infrastructure-grafana-agent/main.jsonnet
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| (import 'cloudflight-libsonnet/infrastructure/grafana-agent/grafana-agent.libsonnet') | ||
| + { | ||
| _config+: { | ||
| grafanaAgent+: {}, | ||
| }, | ||
| } + { | ||
| assert std.isObject($.grafanaAgent), | ||
| } |
13 changes: 13 additions & 0 deletions
13
tests/environments/test-infrastructure-grafana-agent/spec.json
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| { | ||
| "apiVersion": "tanka.dev/v1alpha1", | ||
| "kind": "Environment", | ||
| "metadata": { | ||
| "name": "environments/test-infrastructure-grafana-agent" | ||
| }, | ||
| "spec": { | ||
| "apiServer": "", | ||
| "namespace": "test-infrastructure-grafana-agent", | ||
| "resourceDefaults": {}, | ||
| "expectVersions": {} | ||
| } | ||
| } |