How to add json data in ConfigMap creation in ArgoCD - kubernetes

Question

I'm trying to create a ConfigMap with ArgoCD.
I've created a volumes.yaml file as such
---
apiVersion: v1
kind: ConfigMap
metadata:
name: persistent-volumes-argo
labels:
grafana_dashboard: "1"
project: "foo"
data:
kubernetes.json: |
{{ .Files.Get "dashboards/persistent-volumes.json" | indent 4 }}
But ArgoCD doesn't seem to be able to read the data, the way a standard Helm deployment would.
I've tried adding the data directly into the ConfigMap as such
(Data omitted for brevity)
---
apiVersion: v1
kind: ConfigMap
metadata:
name: persistent-volumes-argo
labels:
grafana_dashboard: "1"
project: "foo"
data:
kubernetes.json: |
{
"annotations": {
"list": [
{
"builtIn": 1,
"datasource": "-- Grafana --",
"enable": true,
"hide": true,
"iconColor": "rgba(0, 211, 255, 1)",
"limit": 100,
"name": "Annotations & Alerts",
"showIn": 0,
"type": "dashboard"
}
]
},
"editable": true,
"gnetId": 13646,
"graphTooltip": 0,
"iteration": 1659421503107,
"links": [],
"panels": [
{
"collapsed": false,
"datasource": null,
"fieldConfig": {
"defaults": {},
"overrides": []
},
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 0
},
"id": 26,
"panels": [],
"title": "Alerts",
"type": "row"
},
{
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"mappings": [],
"noValue": "--",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "semi-dark-red",
"value": null
},
{
"color": "light-green",
"value": -0.0001
},
{
"color": "semi-dark-red",
"value": 0.0001
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 0,
"y": 1
},
"id": 21,
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"text": {},
"textMode": "auto"
},
"pluginVersion": "8.0.3",
"targets": [
{
"expr": "count (max by (persistentvolumeclaim,namespace) (kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"} ) and (max by (persistentvolumeclaim,namespace) (kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"} )) / (max by (persistentvolumeclaim,namespace) (kubelet_volume_stats_capacity_bytes{namespace=~\"${k8s_namespace}\"} )) >= (${warning_threshold} / 100)) or vector (0)",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "PVCs Above Warning Threshold",
"type": "stat"
},
{
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"decimals": 0,
"mappings": [],
"noValue": "--",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "semi-dark-red",
"value": null
},
{
"color": "light-green",
"value": -0.0001
},
{
"color": "semi-dark-red",
"value": 0.0001
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 8,
"y": 1
},
"id": 24,
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"text": {},
"textMode": "auto"
},
"pluginVersion": "8.0.3",
"targets": [
{
"expr": "count((kube_persistentvolumeclaim_status_phase{namespace=~\"${k8s_namespace}\",phase=\"Pending\"}==1)) or vector(0)",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "PVCs in Pending State",
"transformations": [
{
"id": "organize",
"options": {}
}
],
"type": "stat"
},
{
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"decimals": 0,
"mappings": [],
"noValue": "--",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "semi-dark-red",
"value": null
},
{
"color": "light-green",
"value": -0.0001
},
{
"color": "semi-dark-red",
"value": 0.0001
}
]
},
"unit": "none"
},
"overrides": []
},
"gridPos": {
"h": 4,
"w": 8,
"x": 16,
"y": 1
},
"id": 23,
"options": {
"colorMode": "background",
"graphMode": "area",
"justifyMode": "auto",
"orientation": "auto",
"reduceOptions": {
"calcs": [
"mean"
],
"fields": "",
"values": false
},
"text": {},
"textMode": "auto"
},
"pluginVersion": "8.0.3",
"targets": [
{
"expr": "count((kube_persistentvolumeclaim_status_phase{namespace=~\"${k8s_namespace}\",phase=\"Lost\"}==1)) or vector(0)",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "PVCs in Lost State",
"transformations": [
{
"id": "organize",
"options": {}
}
],
"type": "stat"
},
{
"collapsed": false,
"datasource": null,
"fieldConfig": {
"defaults": {},
"overrides": []
},
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 5
},
"id": 17,
"panels": [],
"title": "Usage statistics",
"type": "row"
},
{
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"color": {
"mode": "thresholds"
},
"custom": {
"align": null,
"displayMode": "auto",
"filterable": false
},
"mappings": [],
"noValue": "--",
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "light-green",
"value": null
}
]
},
"unit": "none"
},
"overrides": [
{
"matcher": {
"id": "byName",
"options": "Used (%)"
},
"properties": [
{
"id": "custom.displayMode",
"value": "gradient-gauge"
},
{
"id": "thresholds",
"value": {
"mode": "absolute",
"steps": [
{
"color": "light-green",
"value": null
},
{
"color": "semi-dark-yellow",
"value": 70
},
{
"color": "dark-red",
"value": 80
}
]
}
},
{
"id": "decimals",
"value": 1
}
]
},
{
"matcher": {
"id": "byName",
"options": "Status"
},
"properties": [
{
"id": "custom.displayMode",
"value": "color-background"
},
{
"id": "mappings",
"value": [
{
"options": {
"0": {
"text": "Bound"
},
"1": {
"text": "Pending"
},
"2": {
"text": "Lost"
}
},
"type": "value"
}
]
},
{
"id": "thresholds",
"value": {
"mode": "absolute",
"steps": [
{
"color": "light-green",
"value": null
},
{
"color": "light-green",
"value": 0
},
{
"color": "semi-dark-orange",
"value": 1
},
{
"color": "semi-dark-red",
"value": 2
}
]
}
},
{
"id": "noValue",
"value": "--"
},
{
"id": "custom.align",
"value": "center"
}
]
},
{
"matcher": {
"id": "byName",
"options": "Namespace"
},
"properties": [
{
"id": "custom.width",
"value": 120
}
]
},
{
"matcher": {
"id": "byName",
"options": "Status"
},
"properties": [
{
"id": "custom.width",
"value": 80
}
]
},
{
"matcher": {
"id": "byName",
"options": "Capacity (GiB)"
},
"properties": [
{
"id": "custom.width",
"value": 120
}
]
},
{
"matcher": {
"id": "byName",
"options": "Used (GiB)"
},
"properties": [
{
"id": "custom.width",
"value": 120
}
]
},
{
"matcher": {
"id": "byName",
"options": "Available (GiB)"
},
"properties": [
{
"id": "custom.width",
"value": 120
}
]
},
{
"matcher": {
"id": "byName",
"options": "StorageClass"
},
"properties": [
{
"id": "custom.width",
"value": 150
}
]
},
{
"matcher": {
"id": "byName",
"options": "PersistentVolumeClaim"
},
"properties": [
{
"id": "custom.width",
"value": 370
}
]
}
]
},
"gridPos": {
"h": 12,
"w": 24,
"x": 0,
"y": 6
},
"id": 29,
"interval": "",
"options": {
"frameIndex": 2,
"showHeader": true,
"sortBy": [
{
"desc": false,
"displayName": "PersistentVolumeClaim"
}
]
},
"pluginVersion": "8.0.3",
"targets": [
{
"expr": " sum by (persistentvolumeclaim,namespace,storageclass,volumename) (kube_persistentvolumeclaim_info{namespace=~\"${k8s_namespace}\"})",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "A"
},
{
"expr": "sum by (persistentvolumeclaim) (kubelet_volume_stats_capacity_bytes{namespace=~\"${k8s_namespace}\"}/1024/1024/1024)",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "B"
},
{
"expr": "sum by (persistentvolumeclaim) (kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"}/1024/1024/1024)",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "C"
},
{
"expr": "sum by (persistentvolumeclaim) (kubelet_volume_stats_available_bytes{namespace=~\"${k8s_namespace}\"}/1024/1024/1024)",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "D"
},
{
"expr": "sum(kube_persistentvolumeclaim_status_phase{namespace=~\"${k8s_namespace}\",phase=~\"(Pending|Lost)\"}) by (persistentvolumeclaim) + sum(kube_persistentvolumeclaim_status_phase{namespace=~\"${k8s_namespace}\",phase=~\"(Lost)\"}) by (persistentvolumeclaim)",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "E"
},
{
"expr": "sum by (persistentvolumeclaim) (kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"}/kubelet_volume_stats_capacity_bytes{namespace=~\"${k8s_namespace}\"} * 100)",
"format": "table",
"instant": true,
"interval": "",
"legendFormat": "",
"refId": "F"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Persistent Volume Claim",
"transformations": [
{
"id": "seriesToColumns",
"options": {
"byField": "persistentvolumeclaim"
}
},
{
"id": "organize",
"options": {
"excludeByName": {
"Time": true,
"Time 1": true,
"Time 2": true,
"Time 3": true,
"Time 4": true,
"Time 5": true,
"Time 6": true,
"Value #A": true
},
"indexByName": {},
"renameByName": {
"Time 1": "",
"Time 2": "",
"Time 3": "",
"Time 4": "",
"Time 5": "",
"Time 6": "",
"Value #A": "",
"Value #B": "Capacity (GiB)",
"Value #C": "Used (GiB)",
"Value #D": "Available (GiB)",
"Value #E": "Status",
"Value #F": "Used (%)",
"namespace": "Namespace",
"persistentvolumeclaim": "PersistentVolumeClaim",
"storageclass": "StorageClass",
"volumename": "PhysicalVolume"
}
}
}
],
"type": "table"
},
{
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"custom": {
"align": null,
"displayMode": "auto",
"filterable": false
},
"mappings": [],
"thresholds": {
"mode": "absolute",
"steps": [
{
"color": "green",
"value": null
}
]
}
},
"overrides": []
},
"gridPos": {
"h": 5,
"w": 24,
"x": 0,
"y": 18
},
"id": 7,
"options": {
"showHeader": true,
"sortBy": [
{
"desc": true,
"displayName": "Status"
}
]
},
"pluginVersion": "8.0.3",
"targets": [
{
"expr": "kube_storageclass_info",
"format": "table",
"interval": "",
"legendFormat": "",
"refId": "A"
}
],
"timeFrom": null,
"timeShift": null,
"title": "Storage Class",
"transformations": [
{
"id": "organize",
"options": {
"excludeByName": {
"Time": true,
"Value": true,
"__name__": true,
"app_kubernetes_io_instance": true,
"app_kubernetes_io_name": true,
"instance": true,
"job": true,
"kubernetes_namespace": true,
"kubernetes_pod_name": true,
"pod_template_hash": true
},
"indexByName": {
"Time": 1,
"Value": 13,
"__name__": 2,
"app_kubernetes_io_instance": 3,
"app_kubernetes_io_name": 4,
"instance": 5,
"job": 6,
"kubernetes_namespace": 7,
"kubernetes_pod_name": 8,
"pod_template_hash": 9,
"provisioner": 10,
"reclaimPolicy": 11,
"storageclass": 0,
"volumeBindingMode": 12
},
"renameByName": {
"provisioner": "Provisioner",
"reclaimPolicy": "ReclaimPolicy",
"storageclass": "StorageClass",
"volumeBindingMode": "VolumeBindingMode"
}
}
},
{
"id": "groupBy",
"options": {
"fields": {
"Provisioner": {
"aggregations": [],
"operation": "groupby"
},
"ReclaimPolicy": {
"aggregations": [],
"operation": "groupby"
},
"StorageClass": {
"aggregations": [],
"operation": "groupby"
},
"VolumeBindingMode": {
"aggregations": [],
"operation": "groupby"
}
}
}
}
],
"type": "table"
},
{
"collapsed": false,
"datasource": null,
"fieldConfig": {
"defaults": {},
"overrides": []
},
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 23
},
"id": 15,
"panels": [],
"title": "Graphical usage data ",
"type": "row"
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "$datasource",
"fill": 0,
"fillGradient": 0,
"gridPos": {
"h": 12,
"w": 24,
"x": 0,
"y": 24
},
"hiddenSeries": false,
"id": 9,
"legend": {
"alignAsTable": true,
"avg": true,
"current": true,
"max": true,
"min": true,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "8.0.3",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "(max by (persistentvolumeclaim,namespace) (kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"}))",
"interval": "",
"legendFormat": "{{namespace}} ({{persistentvolumeclaim}})",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "All Running PVCs Used Bytes",
"tooltip": {
"shared": true,
"sort": 2,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "bytes",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "Date & time",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"collapsed": true,
"datasource": null,
"fieldConfig": {
"defaults": {},
"overrides": []
},
"gridPos": {
"h": 1,
"w": 24,
"x": 0,
"y": 36
},
"id": 19,
"panels": [
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 0,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 24,
"x": 0,
"y": 41
},
"hiddenSeries": false,
"id": 11,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": false,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "7.2.1",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "rate(kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"}[1h])",
"instant": false,
"interval": "",
"legendFormat": "{{namespace}} ({{persistentvolumeclaim}})",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Hourly Volume Usage Rate",
"tooltip": {
"shared": true,
"sort": 2,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "binBps",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "Date & time",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 0,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 24,
"x": 0,
"y": 48
},
"hiddenSeries": false,
"id": 12,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": false,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
},
"percentage": false,
"pluginVersion": "7.2.1",
"pointradius": 2,
"points": false,
"renderer": "flot",
"seriesOverrides": [],
"spaceLength": 10,
"stack": false,
"steppedLine": false,
"targets": [
{
"expr": "rate(kubelet_volume_stats_used_bytes{namespace=~\"${k8s_namespace}\"}[1d])",
"interval": "",
"legendFormat": "{{namespace}} ({{persistentvolumeclaim}})",
"refId": "A"
}
],
"thresholds": [],
"timeFrom": null,
"timeRegions": [],
"timeShift": null,
"title": "Daily Volume Usage Rate",
"tooltip": {
"shared": true,
"sort": 2,
"value_type": "individual"
},
"type": "graph",
"xaxis": {
"buckets": null,
"mode": "time",
"name": null,
"show": true,
"values": []
},
"yaxes": [
{
"format": "binBps",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
},
{
"format": "Date & time",
"label": null,
"logBase": 1,
"max": null,
"min": null,
"show": true
}
],
"yaxis": {
"align": false,
"alignLevel": null
}
},
{
"aliasColors": {},
"bars": false,
"dashLength": 10,
"dashes": false,
"datasource": "$datasource",
"fieldConfig": {
"defaults": {
"custom": {}
},
"overrides": []
},
"fill": 0,
"fillGradient": 0,
"gridPos": {
"h": 7,
"w": 24,
"x": 0,
"y": 55
},
"hiddenSeries": false,
"id": 13,
"legend": {
"alignAsTable": true,
"avg": true,
"current": false,
"max": false,
"min": false,
"rightSide": true,
"show": true,
"total": false,
"values": true
},
"lines": true,
"linewidth": 1,
"nullPointMode": "null",
"options": {
"alertThreshold": true
}
}
But this errors with rpc error: code = FailedPrecondition desc = Failed to unmarshal "volumes.yaml": <nil>
Is there a way to pass in json data when creating a ConfigMap with ArgoCD, either as a template or by dumping the data in the file?

Answer 1

To create configmap with argocd and helm
apiVersion: v1
kind: ConfigMap
metadata:
name: {{ include "helm-chart.fullname" . }}-configmap
data:
config.json : |
{{ toJson .Values.configmap | indent 4 }}
and the value file should be like this, which is our JSON but converted to YAML
configmap:
json:
- rigid
- better for data interchange
yaml:
- slim and flexible
- better for configuration
object:
key: value
array:
- null_value:
- boolean: true
- integer: 1
- alias: &example aliases are like variables
- alias: *example
paragraph: >
Blank lines denote
paragraph breaks
content: |-
Or we
can auto
convert line breaks
to save space
alias: &foo
bar: baz
alias_reuse: *foo
json2yaml
A complete demo app can be found here
A very quick way to create app with the above configmap and demo app
argocd app create demo-app --repo https://github.com/Adiii717/argocd-demo-app.git --path helm-chart --dest-namespace default --dest-server https://kubernetes.default.svc --helm-set replicaCount=2
Make sure you also set
export ARGOCD_AUTH_TOKEN="tokeh
export ARGOCD_OPTS="--grpc-web"
export ARGOCD_SERVER="argocd.example.com"
added section for the configmap