jsonnet: establish convention for components default fields

Signed-off-by: paulfantom <pawel@krupa.net.pl>

jsonnet/kube-prometheus/components/alertmanager.libsonnet

 local defaults = {
   local defaults = self,
-  namespace: error 'must provide namespace',
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  namespace:: error 'must provide namespace',
   image: error 'must provide image',
   version: error 'must provide version',
   resources: {
@@ -18,9 +20,9 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  name: error 'must provide name',
-  reloaderPort: 8080,
-  config: {
+  name:: error 'must provide name',
+  reloaderPort:: 8080,
+  config:: {
     global: {
       resolve_timeout: '5m',
     },
@@ -59,7 +61,7 @@ local defaults = {
     ],
   },
   replicas: 3,
-  mixin: {
+  mixin:: {
     ruleLabels: {},
     _config: {
       alertmanagerName: '{{ $labels.namespace }}/{{ $labels.pod}}',

jsonnet/kube-prometheus/components/blackbox-exporter.libsonnet

@@ -2,10 +2,12 @@ local krp = import './kube-rbac-proxy.libsonnet';
 
 local defaults = {
   local defaults = self,
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
-  image: error 'must provide version',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
+  image:: error 'must provide version',
+  resources:: {
     requests: { cpu: '10m', memory: '20Mi' },
     limits: { cpu: '20m', memory: '40Mi' },
   },
@@ -20,13 +22,13 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  configmapReloaderImage: error 'must provide version',
-  kubeRbacProxyImage: error 'must provide kubeRbacProxyImage',
+  configmapReloaderImage:: error 'must provide version',
+  kubeRbacProxyImage:: error 'must provide kubeRbacProxyImage',
 
-  port: 9115,
-  internalPort: 19115,
-  replicas: 1,
-  modules: {
+  port:: 9115,
+  internalPort:: 19115,
+  replicas:: 1,
+  modules:: {
     http_2xx: {
       prober: 'http',
       http: {
@@ -81,7 +83,7 @@ local defaults = {
       },
     },
   },
-  privileged:
+  privileged::
     local icmpModules = [self.modules[m] for m in std.objectFields(self.modules) if self.modules[m].prober == 'icmp'];
     std.length(icmpModules) > 0,
 };

jsonnet/kube-prometheus/components/grafana.libsonnet

@@ -2,11 +2,13 @@ local kubernetesGrafana = import 'github.com/brancz/kubernetes-grafana/grafana/g
 
 local defaults = {
   local defaults = self,
-  name: 'grafana',
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
-  image: error 'must provide image',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  name:: 'grafana',
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
+  image:: error 'must provide image',
+  resources:: {
     requests: { cpu: '100m', memory: '100Mi' },
     limits: { cpu: '200m', memory: '200Mi' },
   },
@@ -21,7 +23,7 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  prometheusName: error 'must provide prometheus name',
+  prometheusName:: error 'must provide prometheus name',
 };
 
 function(params)

jsonnet/kube-prometheus/components/k8s-control-plane.libsonnet

 local relabelings = import '../addons/dropping-deprecated-metrics-relabelings.libsonnet';
 
 local defaults = {
-  namespace: error 'must provide namespace',
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  namespace:: error 'must provide namespace',
   commonLabels:: {
     'app.kubernetes.io/name': 'kube-prometheus',
     'app.kubernetes.io/part-of': 'kube-prometheus',
   },
-  mixin: {
+  mixin:: {
     ruleLabels: {},
     _config: {
       cadvisorSelector: 'job="kubelet", metrics_path="/metrics/cadvisor"',
@@ -22,7 +24,7 @@ local defaults = {
       hostNetworkInterfaceSelector: 'device!~"veth.+"',
     },
   },
-  kubeProxy: false,
+  kubeProxy:: false,
 };
 
 function(params) {

jsonnet/kube-prometheus/components/kube-rbac-proxy.libsonnet

 local defaults = {
-  namespace: error 'must provide namespace',
-  image: error 'must provide image',
-  ports: error 'must provide ports',
-  secureListenAddress: error 'must provide secureListenAddress',
-  upstream: error 'must provide upstream',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  namespace:: error 'must provide namespace',
+  image:: error 'must provide image',
+  ports:: error 'must provide ports',
+  secureListenAddress:: error 'must provide secureListenAddress',
+  upstream:: error 'must provide upstream',
+  resources:: {
     requests: { cpu: '10m', memory: '20Mi' },
     limits: { cpu: '20m', memory: '40Mi' },
   },
-  tlsCipherSuites: [
+  tlsCipherSuites:: [
     'TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256',  // required by h2: http://golang.org/cl/30721
     'TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256',  // required by h2: http://golang.org/cl/30721
 

jsonnet/kube-prometheus/components/kube-state-metrics.libsonnet

@@ -2,24 +2,26 @@ local krp = import './kube-rbac-proxy.libsonnet';
 
 local defaults = {
   local defaults = self,
-  name: 'kube-state-metrics',
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
-  image: error 'must provide version',
-  kubeRbacProxyImage: error 'must provide kubeRbacProxyImage',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  name:: 'kube-state-metrics',
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
+  image:: error 'must provide version',
+  kubeRbacProxyImage:: error 'must provide kubeRbacProxyImage',
+  resources:: {
     requests: { cpu: '10m', memory: '190Mi' },
     limits: { cpu: '100m', memory: '250Mi' },
   },
 
-  kubeRbacProxyMain: {
+  kubeRbacProxyMain:: {
     resources+: {
       limits+: { cpu: '40m' },
       requests+: { cpu: '20m' },
     },
   },
-  scrapeInterval: '30s',
-  scrapeTimeout: '30s',
+  scrapeInterval:: '30s',
+  scrapeTimeout:: '30s',
   commonLabels:: {
     'app.kubernetes.io/name': defaults.name,
     'app.kubernetes.io/version': defaults.version,
@@ -31,7 +33,7 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  mixin: {
+  mixin:: {
     ruleLabels: {},
     _config: {
       kubeStateMetricsSelector: 'job="' + defaults.name + '"',

jsonnet/kube-prometheus/components/node-exporter.libsonnet

@@ -2,18 +2,20 @@ local krp = import './kube-rbac-proxy.libsonnet';
 
 local defaults = {
   local defaults = self,
-  name: 'node-exporter',
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
-  image: error 'must provide version',
-  kubeRbacProxyImage: error 'must provide kubeRbacProxyImage',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  name:: 'node-exporter',
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
+  image:: error 'must provide version',
+  kubeRbacProxyImage:: error 'must provide kubeRbacProxyImage',
+  resources:: {
     requests: { cpu: '102m', memory: '180Mi' },
     limits: { cpu: '250m', memory: '180Mi' },
   },
-  listenAddress: '127.0.0.1',
-  filesystemMountPointsExclude: '^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)',
-  port: 9100,
+  listenAddress:: '127.0.0.1',
+  filesystemMountPointsExclude:: '^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)',
+  port:: 9100,
   commonLabels:: {
     'app.kubernetes.io/name': defaults.name,
     'app.kubernetes.io/version': defaults.version,
@@ -25,7 +27,7 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  mixin: {
+  mixin:: {
     ruleLabels: {},
     _config: {
       nodeExporterSelector: 'job="' + defaults.name + '"',

jsonnet/kube-prometheus/components/prometheus-adapter.libsonnet

 local defaults = {
   local defaults = self,
-  name: 'prometheus-adapter',
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  name:: 'prometheus-adapter',
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
   image: error 'must provide image',
-  resources: {
+  resources:: {
     requests: { cpu: '102m', memory: '180Mi' },
     limits: { cpu: '250m', memory: '180Mi' },
   },
-  replicas: 2,
-  listenAddress: '127.0.0.1',
-  port: 9100,
+  replicas:: 2,
+  listenAddress:: '127.0.0.1',
+  port:: 9100,
   commonLabels:: {
     'app.kubernetes.io/name': 'prometheus-adapter',
     'app.kubernetes.io/version': defaults.version,
@@ -24,14 +26,14 @@ local defaults = {
   },
   // Default range intervals are equal to 4 times the default scrape interval.
   // This is done in order to follow Prometheus rule of thumb with irate().
-  rangeIntervals: {
+  rangeIntervals:: {
     kubelet: '4m',
     nodeExporter: '4m',
     windowsExporter: '4m',
   },
 
-  prometheusURL: error 'must provide prometheusURL',
-  config: {
+  prometheusURL:: error 'must provide prometheusURL',
+  config:: {
     resourceRules: {
       cpu: {
         containerQuery: |||
@@ -95,7 +97,7 @@ local defaults = {
       window: '5m',
     },
   },
-  tlsCipherSuites: [
+  tlsCipherSuites:: [
     'TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305',
     'TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305',
     'TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256',

jsonnet/kube-prometheus/components/prometheus-operator.libsonnet

@@ -3,13 +3,15 @@ local prometheusOperator = import 'github.com/prometheus-operator/prometheus-ope
 
 local defaults = {
   local defaults = self,
-  name: 'prometheus-operator',
-  namespace: error 'must provide namespace',
-  version: error 'must provide version',
-  image: error 'must provide image',
-  kubeRbacProxyImage: error 'must provide kubeRbacProxyImage',
-  configReloaderImage: error 'must provide config reloader image',
-  resources: {
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  name:: 'prometheus-operator',
+  namespace:: error 'must provide namespace',
+  version:: error 'must provide version',
+  image:: error 'must provide image',
+  kubeRbacProxyImage:: error 'must provide kubeRbacProxyImage',
+  configReloaderImage:: error 'must provide config reloader image',
+  resources:: {
     limits: { cpu: '200m', memory: '200Mi' },
     requests: { cpu: '100m', memory: '100Mi' },
   },
@@ -24,7 +26,7 @@ local defaults = {
     for labelName in std.objectFields(defaults.commonLabels)
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   },
-  mixin: {
+  mixin:: {
     ruleLabels: {
       role: 'alert-rules',
       prometheus: defaults.name,

jsonnet/kube-prometheus/components/prometheus.libsonnet

 local defaults = {
   local defaults = self,
-  namespace: error 'must provide namespace',
+  // Convention: Top-level fields related to CRDs are public, other fields are hidden
+  // If there is no CRD for the component, everything is hidden in defaults.
+  namespace:: error 'must provide namespace',
   version: error 'must provide version',
   image: error 'must provide image',
   resources: {
     requests: { memory: '400Mi' },
   },
 
-  name: error 'must provide name',
-  alertmanagerName: error 'must provide alertmanagerName',
-  namespaces: ['default', 'kube-system', defaults.namespace],
+  name:: error 'must provide name',
+  //TODO: remove alertmanagerName and convert to plain 'alerting' object
+  alertmanagerName:: error 'must provide alertmanagerName',
+  namespaces:: ['default', 'kube-system', defaults.namespace],
   replicas: 2,
   externalLabels: {},
   enableFeatures: [],
@@ -25,7 +28,7 @@ local defaults = {
     if !std.setMember(labelName, ['app.kubernetes.io/version'])
   } + { prometheus: defaults.name },
   ruleSelector: {},
-  mixin: {
+  mixin:: {
     ruleLabels: {},
     _config: {
       prometheusSelector: 'job="prometheus-' + defaults.name + '",namespace="' + defaults.namespace + '"',
@@ -35,7 +38,7 @@ local defaults = {
     },
   },
   thanos: null,
-  reloaderPort: 8080,
+  reloaderPort:: 8080,
 };