How to add an APM Insight Node.js agent in Kubernetes via InitContainers?
To integrate the APM Insight Node.js agent into your Kubernetes applications using InitContainers, follow the steps given below:
Step 1:
Create an empty volume that will be used to copy the agent files during the initContainers process.
Example:
- volumes:
- - name: app-volume
Step 2:
Include the following initContainers command in your helm chart/deployment YAML file.
- initContainers:
- - name: init-npm
- image: site24x7/apminsight-nodejsagent:latest
- imagePullPolicy: IfNotPresent
- command: ['cp', '-r', '/opt/site24x7/.', '/apm']
- volumeMounts:
- - name: app-volume
- mountPath: /apm
Step 3:
Mount the volume created in step 2 into your application container.
Example:
- containers:
- env:
- - name: NODE_OPTIONS
- value: "--require /apm/node_modules/apminsight"
- - name: APMINSIGHT_LICENSE_KEY
- value: "<license-key>"
- - name: APMINSIGHT_APP_NAME
- value: "<application-name>"
- - name: APMINSIGHT_APP_PORT
- value: "<application-port>"
- - name: APMINSIGHT_APM_HOST
- value: "<manageengine-applications-manager-server-host>"
- - name: APMINSIGHT_APM_PORT
- value: "<manageengine-applications-manager-server-port>"
- volumeMounts:
- - mountPath: /apm
- name: app-volume
Example YAML deployment file for your reference:
- apiVersion: apps/v1
- kind: Deployment
- metadata:
- name: sample-deployment
- spec:
- replicas: 1
- selector:
- matchLabels:
- app: sample-app
- template:
- metadata:
- labels:
- app: sample-app
- spec:
- initContainers:
- - name: init-npm
- image: site24x7/apminsight-nodejsagent:latest
- imagePullPolicy: IfNotPresent
- command: ['cp', '-r', '/opt/site24x7/.', '/apm']
- volumeMounts:
- - name: app-volume
- mountPath: /apm
- containers:
- - name: main-container
- image: myrepository/sample-nodejs-app:latest
- env:
- - name: NODE_OPTIONS
- value: "--require /apm/node_modules/apminsight"
- - name: APMINSIGHT_LICENSE_KEY
- value: "<license-key>"
- - name: APMINSIGHT_APP_NAME
- value: "<application-name>"
- - name: APMINSIGHT_APP_PORT
- value: "<application-port>"
- - name: APMINSIGHT_APM_HOST
- value: "<manageengine-applications-manager-server-host>"
- - name: APMINSIGHT_APM_PORT
- value: "<manageengine-applications-manager-server-port>"
- volumeMounts:
- - mountPath: /apm
- name: app-volume
- volumes:
- - name: app-volume
- emptyDir: {}
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