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AppDynamics

AppDynamics is a performance management program for applications. It helps users to gain a comprehensive understanding of the impact of technical difficulties on business goals, allowing IT teams to prioritize their efforts in a way that improves ROI.

Scope of Support​

Currently, Nobl9 does not support metric paths that contain Wild Cards | AppDynamics Documentation.

Prerequisites​

  1. The Nobl9 Agent has a firewall access to : http://<controller_host>:<controller_port>/controller/rest/<REST_URI>.

  2. To connect to AppDynamics, your AppDynamics API client needs at least the Applications and Dashboards Viewer permissions.

Authentication​

Nobl9 Agent calls the Metric and Snapshot API | AppDynamics Documentation. The Agent and Direct configurations for AppDynamics require the following credentials:

  • Client ID: The AppDynamics Client ID is built from your AppDynamics apiClientName and AppDynamics accountName link with the @ sign. For example: apiClientName@accountName.

    • To retrieve apiClientName, log in to your AppDynamics account, go to Administration (under cog icon) / API Clients tab, select an API client and copy Client Name.
    • To retrieve your accountName, log in to your AppDynamics account, go to the License (under cog icon) / License Summary / Account Details section and copy the Name.
  • Controller URL: It is an entry point for Nobl9 to AppDynamics instance. Example: http://yourcompany.saas.appdynamics.com

  • Client Secret: Follow the instructions in the API Clients | AppDynamics Documentation section of the AppDynamics documentation to create your Client Secret.

Adding AppDynamics as a Data Source in the UI​

To add AppDynamics as a data source in Nobl9 using the Agent or Direct connection method, follow these steps:

  1. Navigate to Integrations > Sources.

  2. Click the plus button button.

  3. Click the AppDynamics icon.

  4. Choose Direct or Agent.

AppDynamics Direct​

Direct Configuration in the UI​

Direct connection to AppDynamics requires users to enter their credentials which Nobl9 stores safely. To set up this type of connection:

  1. Enter the Controller URL (required).
    Refer to the Authentication section for detailed instructions.

  2. Enter your AppDynamics ClientID (required).
    Refer to the Authentication section for detailed instructions.

  3. Enter your AppDynamics Client Secret (required).
    Refer to the Authentication section for detailed instructions.

  4. Select a Project (mandatory).
    Specifying a Project is helpful when multiple users are spread across multiple teams or projects. When the Project field is left blank then object is assigned to project default.

  5. Enter a Display name (optional).
    You can enter a friendly name with spaces in this field.

  6. Enter a Name (mandatory).
    The name is mandatory and can only contain lowercase, alphanumeric characters and dashes (for example, my-project-name). This field is populated automatically when you enter a display name, but you can edit the result.

  7. Enter a Description (optional).
    Here you can add details such as who is responsible for the integration (team/owner) and the purpose of creating it.

  8. Click the Add Data Source button.

AppDynamics Agent​

Agent Configuration in the UI​

Follow the instructions below to create your AppDynamics agent connection. Refer to the section above for the description of the fields.

  1. Enter the Controller URL (required).

  2. Enter a Project (required)

  3. Enter a Name (required).

  4. Enter a Description (optional).

  5. Click the Add Data Source button.

Deploying AppDynamics Agent​

When you add the data source, Nobl9 automatically generates a Kubernetes configuration and a Docker command line for you to use to deploy the Agent. Both of these are available in the web UI, under the Agent Configuration section. Be sure to swap in your credentials (e.g., replace <APPD_CLIENT_ID> and <APPD_CLIENT_SECRET> with your organization key).

If you use Kubernetes, you can apply the supplied YAML config file to a Kubernetes cluster to deploy the Agent. It will look something like this:

# DISCLAIMER: This deployment description contains only the fields necessary for the purpose of this demo.
# It is not a ready-to-apply k8s deployment description, and the client_id and client_secret are only exemplary values.

apiVersion: v1
kind: Secret
metadata:
name: nobl9-agent-nobl9-dev-default-name
namespace: default
type: Opaque
stringData:
appd_client_id: "<APPD_CLIENT_ID>"
appd_client_secret: "<APPD_CLIENT_SECRET>"
client_id: "unique_client_id"
client_secret: "unique_client_secret"
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nobl9-agent-nobl9-dev-default-name
namespace: default
spec:
replicas: 1
selector:
matchLabels:
nobl9-agent-name: "appdynamics-agent"
nobl9-agent-project: "appdynamics-project"
nobl9-agent-organization: "nobl9-dev"
template:
metadata:
labels:
nobl9-agent-name: "appdynamics-agent"
nobl9-agent-project: "appdynamics-project"
nobl9-agent-organization: "nobl9-dev"
spec:
containers:
- name: agent-container
image: nobl9/agent:latest
resources:
requests:
memory: "350Mi"
cpu: "0.1"
env:
- name: N9_CLIENT_ID
valueFrom:
secretKeyRef:
key: client_id
name: nobl9-agent-nobl9-dev-default-name
- name: N9_CLIENT_SECRET
valueFrom:
secretKeyRef:
key: client_secret
name: nobl9-agent-nobl9-dev-default-name
- name: APPD_CLIENT_ID
valueFrom:
secretKeyRef:
key: appd_client_id
name: nobl9-agent-nobl9-dev-default-name
- name: APPD_CLIENT_SECRET
valueFrom:
secretKeyRef:
key: appd_client_secret
name: nobl9-agent-nobl9-dev-default-name

Creating SLOs with AppDynamics​

Creating SLOs in the UI​

Follow the instructions below to create your SLOs with AppDynamics in the UI:

  1. Navigate to Service Level Objectives.

  2. Click the plus button button.

  3. In step 1 of the SLO wizard, select the Service the SLO will be associated with.

  4. In step 2, select AppDynamics as the Data Source for your SLO.

  5. Enter the Application Name.

    • The Application Name refers to the one configured in the AppDynamics agent APPDYNAMICS_AGENT_APPLICATION_NAME environment variable and is different for each application.
    • To ingest Database Metrics, you must enter Database Monitoring in the Application Name field.
  6. Specify the Metric. You can choose either a Threshold Metric, where a single time series is evaluated against a threshold or a Ratio Metric, which allows you to enter two time series to compare (for example, a count of good requests and total requests).

    1. Enter a Query, or Good Query and Total Query for the metric you selected. The following are query examples:

    2. Threshold metric for AppDynamics: Query: End User Experience|App|End User Response Time 95th percentile (ms)

    3. Ratio metric for AppDynamics: Good Query: End User Experience|App|Very Slow Requests Total Query: End User Experience|App|Normal Requests

  7. In step 3, define a Time Window for the SLO.

  8. In step 4, specify the Error Budget Calculation Method and your Objective(s).

  9. In step 5, add a Name, Description, and other details about your SLO. You can also select Alert Policies and Labels on this screen.

  10. When you’re done, click Create SLO.

SLOs using AppDynamics - YAML samples​

Here are examples of AppDynamics using a rawMetric (Threshold Metric) and a countMetric (Ratio Metric):

Here’s an example of AppDynamics using a rawMetric (Threshold Metric)

apiVersion: n9/v1alpha
kind: SLO
metadata:
name: appdynamics-end-user-response-calendar
displayName: AppDynamics MyService End User Response Calendar
project: appdynamics-raw
spec:
description: 95th percentile of End User Response 1 Week Calendar
service: appdynamics-myservice-service
indicator:
metricSource:
name: appdynamics-agent
timeWindows:
- unit: Day
count: 7
calendar:
startTime: 2020-03-09 00:00:00
timeZone: Europe/Warsaw
budgetingMethod: Occurrences
objectives:
- displayName: Acceptable
op: lte
rawMetric:
query:
appDynamics:
applicationName: "myapp"
metricPath: "End User Experience|App|End User Response Time 95th percentile (ms)"
value: 10000
target: 0.75

Important notes:

Metric specification from AppDynamics has 2 mandatory fields:

  • applicationName – mandatory, string, Application name as configured in AppDynamics agent's APPDYNAMICS_AGENT_APPLICATION_NAME environment variable and is different for each application.

    • To ingest Database Metrics, you must enter Database Monitoring in the Application Name field.

    For more details, refer to Configuring Agents in Kubernetes | AppDynamics Documentation.

    On top of the same validation rules for appDynamics sections as for the rawMetric (Threshold Metric), there is an additional requirement that all applicationName fields must have the same value within a single SLO.

  • metricPath – mandatory, string, full metric path that can be obtained from AppDynamics Controller UI (dashboard).

    metricPath must refer to a single time series.

    Example: "End User Experience|App|End User Response Time 95th percentile (ms)"

    The list of metrics Full Path and their Application Names can be copied directly from the AppDynamics dashboard.

Querying the AppDynamics Server​

The Nobl9 agent leverages the Time Range API parameters. It pulls data at a per-minute interval from the AppDynamics server.

Wildcards | AppDynamics Documentation

Configuring Agents in Kubernetes | AppDynamics Documentation

Configure Resource URL Segments | AppDynamics Documentation

AppDynamics Concepts | AppDynamics Documentation

Metric and Snapshot API | AppDynamics Documentation