Setting up Universal Service Monitoring

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Supported versions and compatibility

Required Agent version: Universal Service Monitoring requires that the Datadog Agent installed alongside your containerized service be at least version 6.40 or 7.40. As noted below, some features in Preview require higher versions.
Supported Linux platforms: Linux Kernel 4.14 and greater
CentOS or RHEL 8.0 and greater
Supported Windows platforms: Windows 2012 R2 and greater
Supported application-layer protocols: HTTP
HTTPS (OpenSSL)
Known limitations: Universal Service Monitoring requires the use of Datadog’s system-probe, which is not supported on Google Kubernetes Engine (GKE) Autopilot.

Additional protocols and traffic encryption methods are in Preview. If you have feedback about what platforms and protocols you'd like to see supported, contact Support.

Prerequisites

If on Linux:
- Your service is running in a container.
- In Preview: For non-containerized services, see the instructions here.
If on Windows:
- Your service is running on a virtual machine.
Datadog Agent is installed alongside your service. Installing a tracing library is not required.
The env tag for Unified Service Tagging has been applied to your deployment. The service and version tags are optional.

Enabling Universal Service Monitoring

Enable Universal Service Monitoring in your Agent by using one of the following methods depending on how your service is deployed and your Agent configured:

Using the Datadog chart version >= 2.26.2, add the following to your values file:

datadog:
  ...
  serviceMonitoring:
    enabled: true

If your cluster is running Google Container-Optimized OS (COS), add the following to your values file as well:

providers:
  gke:
    cos: true

If your cluster is using the Bottlerocket Linux distribution for its nodes, add the following to your values file:

agents:
  containers:
    systemProbe:
      securityContext:
        seLinuxOptions:
          user: "system_u"
          role: "system_r"
          type: "spc_t"
          level: "s0"

Datadog Operator v1.0.0 or greater is required.

To enable Universal Service Monitoring with the Datadog Operator, update your datadog-agent.yaml manifest. In the DatadogAgent resource, set spec.features.usm.enabled to true:

apiVersion: datadoghq.com/v2alpha1
kind: DatadogAgent
metadata:
  name: datadog
spec:
  global:
    credentials:
     apiSecret:
        secretName: datadog-secret
        keyName: api-key
     appSecret:
      secretName: datadog-secret
      keyName: app-key
  features:
    usm:
      enabled: true

Add the annotation container.apparmor.security.beta.kubernetes.io/system-probe: unconfined on the datadog-agent template:

spec:
  selector:
    matchLabels:
      app: datadog-agent
  template:
    metadata:
      labels:
        app: datadog-agent
      name: datadog-agent
      annotations:
        container.apparmor.security.beta.kubernetes.io/system-probe: unconfined

Enable Universal Service Monitoring with the following environment variables in the Agent daemonset. If you are running a container per Agent process, add the following environment variables to the process-agent container. Otherwise, add them to the agent container.

...
  env:
    ...
    - name: DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED
      value: 'true'
    - name: DD_SYSTEM_PROBE_EXTERNAL
      value: 'true'
    - name: DD_SYSPROBE_SOCKET
      value: /var/run/sysprobe/sysprobe.sock

Mount the following extra volumes into the datadog-agent container:

...
spec:
  serviceAccountName: datadog-agent
  containers:
    - name: datadog-agent
      image: 'gcr.io/datadoghq/agent:latest'
      ...
  volumeMounts:
    ...
    - name: sysprobe-socket-dir
    mountPath: /var/run/sysprobe

Add a new system-probe container as a sidecar to the Agent:

...
spec:
  serviceAccountName: datadog-agent
  containers:
    - name: datadog-agent
      image: 'gcr.io/datadoghq/agent:latest'
      ...
    - name: system-probe
      image: 'gcr.io/datadoghq/agent:latest'
      imagePullPolicy: Always
      securityContext:
        capabilities:
          add:
            - SYS_ADMIN
            - SYS_RESOURCE
            - SYS_PTRACE
            - NET_ADMIN
            - NET_BROADCAST
            - NET_RAW
            - IPC_LOCK
            - CHOWN
      command:
        - /opt/datadog-agent/embedded/bin/system-probe
      env:
        - name: DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED
          value: 'true'
        - name: DD_SYSPROBE_SOCKET
          value: /var/run/sysprobe/sysprobe.sock
      resources: {}
      volumeMounts:
        - name: procdir
          mountPath: /host/proc
          readOnly: true
        - name: cgroups
          mountPath: /host/sys/fs/cgroup
          readOnly: true
        - name: debugfs
          mountPath: /sys/kernel/debug
        - name: sysprobe-socket-dir
          mountPath: /var/run/sysprobe
        - name: modules
          mountPath: /lib/modules
          readOnly: true
        - name: src
          mountPath: /usr/src
          readOnly: true
        - name: runtime-compiler-output-dir
          mountPath: /var/tmp/datadog-agent/system-probe/build
        - name: kernel-headers-download-dir
          mountPath: /var/tmp/datadog-agent/system-probe/kernel-headers
          readOnly: false
        - name: apt-config-dir
          mountPath: /host/etc/apt
          readOnly: true
        - name: yum-repos-dir
          mountPath: /host/etc/yum.repos.d
          readOnly: true
        - name: opensuse-repos-dir
          mountPath: /host/etc/zypp
          readOnly: true
        - name: public-key-dir
          mountPath: /host/etc/pki
          readOnly: true
        - name: yum-vars-dir
          mountPath: /host/etc/yum/vars
          readOnly: true
        - name: dnf-vars-dir
          mountPath: /host/etc/dnf/vars
          readOnly: true
        - name: rhel-subscription-dir
          mountPath: /host/etc/rhsm
          readOnly: true

Add the following volumes to your manifest:

volumes:
  - name: sysprobe-socket-dir
    emptyDir: {}
  - name: procdir
    hostPath:
      path: /proc
  - name: debugfs
    hostPath:
      path: /sys/kernel/debug
  - hostPath:
      path: /lib/modules
    name: modules
  - hostPath:
      path: /usr/src
    name: src
  - hostPath:
      path: /var/tmp/datadog-agent/system-probe/build
    name: runtime-compiler-output-dir
  - hostPath:
      path: /var/tmp/datadog-agent/system-probe/kernel-headers
    name: kernel-headers-download-dir
  - hostPath:
      path: /etc/apt
    name: apt-config-dir
  - hostPath:
      path: /etc/yum.repos.d
    name: yum-repos-dir
  - hostPath:
      path: /etc/zypp
    name: opensuse-repos-dir
  - hostPath:
      path: /etc/pki
    name: public-key-dir
  - hostPath:
      path: /etc/yum/vars
    name: yum-vars-dir
  - hostPath:
      path: /etc/dnf/vars
    name: dnf-vars-dir
  - hostPath:
      path: /etc/rhsm
    name: rhel-subscription-dir

Note: If your cluster runs on Google Container-Optimized OS (COS), remove the src mount by removing the following from your container definition:

 - name: src
   mountPath: /usr/src
   readOnly: true

And removing the following from your manifest:

 - hostPath:
     path: /usr/src
   name: src

For optional HTTPS support, add the following to the system-probe container:

env:
  - name: HOST_ROOT
    value: /host/root
volumeMounts:
  - name: hostroot
    mountPath: /host/root
    readOnly: true

And add the following volumes to your manifest:

volumes:
  - name: hostroot
    hostPath:
    path: /

Add the following to your docker run command:

docker run --cgroupns host \
--pid host \
-e DD_API_KEY="<DATADOG_API_KEY>" \
-e DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED=true \
-v /var/run/docker.sock:/var/run/docker.sock:ro \
-v /proc/:/host/proc/:ro \
-v /sys/fs/cgroup/:/host/sys/fs/cgroup:ro \
-v /sys/kernel/debug:/sys/kernel/debug \
-v /lib/modules:/lib/modules:ro \
-v /usr/src:/usr/src:ro \
-v /var/tmp/datadog-agent/system-probe/build:/var/tmp/datadog-agent/system-probe/build \
-v /var/tmp/datadog-agent/system-probe/kernel-headers:/var/tmp/datadog-agent/system-probe/kernel-headers \
-v /etc/apt:/host/etc/apt:ro \
-v /etc/yum.repos.d:/host/etc/yum.repos.d:ro \
-v /etc/zypp:/host/etc/zypp:ro \
-v /etc/pki:/host/etc/pki:ro \
-v /etc/yum/vars:/host/etc/yum/vars:ro \
-v /etc/dnf/vars:/host/etc/dnf/vars:ro \
-v /etc/rhsm:/host/etc/rhsm:ro \
-e DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED=true \
-e HOST_ROOT=/host/root \
--security-opt apparmor:unconfined \
--cap-add=SYS_ADMIN \
--cap-add=SYS_RESOURCE \
--cap-add=SYS_PTRACE \
--cap-add=NET_ADMIN \
--cap-add=NET_BROADCAST \
--cap-add=NET_RAW \
--cap-add=IPC_LOCK \
--cap-add=CHOWN \
gcr.io/datadoghq/agent:latest

Add the following to your docker-compose.yml file:

services:
  ...
  datadog:
    ...
    environment:
     - DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED='true'
    volumes:
     - /var/run/docker.sock:/var/run/docker.sock:ro
     - /proc/:/host/proc/:ro
     - /sys/fs/cgroup/:/host/sys/fs/cgroup:ro
     - /sys/kernel/debug:/sys/kernel/debug
     - /lib/modules:/lib/modules
     - /usr/src:/usr/src
     - /var/tmp/datadog-agent/system-probe/build:/var/tmp/datadog-agent/system-probe/build
     - /var/tmp/datadog-agent/system-probe/kernel-headers:/var/tmp/datadog-agent/system-probe/kernel-headers
     - /etc/apt:/host/etc/apt
     - /etc/yum.repos.d:/host/etc/yum.repos.d
     - /etc/zypp:/host/etc/zypp
     - /etc/pki:/host/etc/pki
     - /etc/yum/vars:/host/etc/yum/vars
     - /etc/dnf/vars:/host/etc/dnf/vars
     - /etc/rhsm:/host/etc/rhsm
    cap_add:
     - SYS_ADMIN
     - SYS_RESOURCE
     - SYS_PTRACE
     - NET_ADMIN
     - NET_BROADCAST
     - NET_RAW
     - IPC_LOCK
     - CHOWN
    security_opt:
     - apparmor:unconfined

For optional HTTPS support, also add:

services:
  ...
  datadog:
    ...
    environment:
     - HOST_ROOT: '/host/root'
    volumes:
     - /:/host/root:ro

As Docker Swarm does not yet support the changing of security_opt, the operating system must not have a running apparmor instance.

If the operating system does not have a running apparmor instance, use the same docker-compose.yml file from the Docker-Compose section beside the field security_opt.

If you are not using Helm Charts or environment variables, set the following in your system-probe.yaml file:

service_monitoring_config:
  enabled: true

If you configure the system-probe with environment variables, as is common with Docker and ECS installations, pass the following environment variable to both the process-agent and system-probe:

DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED=true

Set the following attributes on your nodes:

node["datadog"]["system_probe"]["service_monitoring_enabled"] = true

Set service_monitoring_enabled:

class { 'datadog_agent::system_probe':
    service_monitoring_enabled => true,
}

Add the following attributes in your playbook:

service_monitoring_config:
  enabled: true

For ECS, enable USM and the system probe with the following JSON task definition. Deploy the task definition as a daemon service.

{
  "containerDefinitions": [
    {
      "name": "datadog-agent",
      "image": "public.ecr.aws/datadog/agent:7",
      "cpu": 500,
      "memory": 1024,
      "essential": true,
      "mountPoints": [
        ...
        {
          "containerPath": "/sys/kernel/debug",
          "sourceVolume": "sys_kernel_debug"
        },
        {
          "containerPath": "/host/proc",
          "sourceVolume": "proc"
        },
        {
          "containerPath": "/var/run/docker.sock",
          "sourceVolume": "var_run_docker_sock"
        },
        {
          "containerPath": "/host/sys/fs/cgroup",
          "sourceVolume": "sys_fs_cgroup"
        },
        {
          "readOnly": true,
          "containerPath": "/var/lib/docker/containers",
          "sourceVolume": "var_lib_docker_containers"
        },
        {
          "containerPath": "/lib/modules",
          "sourceVolume": "lib_modules"
        },
        {
          "containerPath": "/usr/src",
          "sourceVolume": "usr_src"
        },
        {
          "containerPath": "/var/tmp/datadog-agent/system-probe/build",
          "sourceVolume": "var_tmp_datadog_agent_system_probe_build"
        },
        {
          "containerPath": "/var/tmp/datadog-agent/system-probe/kernel-headers",
          "sourceVolume": "var_tmp_datadog_agent_system_probe_kernel_headers"
        },
        {
          "containerPath": "/host/etc/apt",
          "sourceVolume": "etc_apt"
        },
        {
          "containerPath": "/host/etc/yum.repos.d",
          "sourceVolume": "etc_yum_repos_d"
        },
        {
          "containerPath": "/host/etc/zypp",
          "sourceVolume": "etc_zypp"
        },
        {
          "containerPath": "/host/etc/pki",
          "sourceVolume": "etc_pki"
        },
        {
          "containerPath": "/host/etc/yum/vars",
          "sourceVolume": "etc_yum_vars"
        },
        {
          "containerPath": "/host/etc/dnf/vars",
          "sourceVolume": "etc_dnf_vars"
        },
        {
          "containerPath": "/host/etc/rhsm",
          "sourceVolume": "etc_rhsm"
        }
      ],
      "environment": [
        {
          "name": "DD_API_KEY",
          "value": "<YOUR_DATADOG_API_KEY>"
        },
        ...
        {
          "name": "DD_SYSTEM_PROBE_SERVICE_MONITORING_ENABLED",
          "value": "true"
        }
      ],
      "linuxParameters": {
        "capabilities": {
          "add": [
            "SYS_ADMIN",
            "SYS_RESOURCE",
            "SYS_PTRACE",
            "NET_ADMIN",
            "NET_BROADCAST",
            "NET_RAW",
            "IPC_LOCK",
            "CHOWN"
          ]
        }
      }
    }
  ],
  "requiresCompatibilities": [
    "EC2"
  ],
  "volumes": [
    ...
    {
      "host": {
        "sourcePath": "/sys/kernel/debug"
      },
      "name": "sys_kernel_debug"
    },
    {
      "host": {
        "sourcePath": "/proc/"
      },
      "name": "proc"
    },
    {
      "host": {
        "sourcePath": "/var/run/docker.sock"
      },
      "name": "var_run_docker_sock"
    },
    {
      "host": {
        "sourcePath": "/sys/fs/cgroup/"
      },
      "name": "sys_fs_cgroup"
    },
    {
      "host": {
        "sourcePath": "/var/lib/docker/containers/"
      },
      "name": "var_lib_docker_containers"
    },
    {
      "host": {
        "sourcePath": "/lib/modules"
      },
      "name": "lib_modules"
    },
    {
      "host": {
        "sourcePath": "/usr/src"
      },
      "name": "usr_src"
    },
    {
      "host": {
        "sourcePath": "/var/tmp/datadog-agent/system-probe/build"
      },
      "name": "var_tmp_datadog_agent_system_probe_build"
    },
    {
      "host": {
        "sourcePath": "/var/tmp/datadog-agent/system-probe/kernel-headers"
      },
      "name": "var_tmp_datadog_agent_system_probe_kernel_headers"
    },
    {
      "host": {
        "sourcePath": "/etc/apt"
      },
      "name": "etc_apt"
    },
    {
      "host": {
        "sourcePath": "/etc/yum.repos.d"
      },
      "name": "etc_yum_repos_d"
    },
    {
      "host": {
        "sourcePath": "/etc/zypp"
      },
      "name": "etc_zypp"
    },
    {
      "host": {
        "sourcePath": "/etc/pki"
      },
      "name": "etc_pki"
    },
    {
      "host": {
        "sourcePath": "/etc/yum/vars"
      },
      "name": "etc_yum_vars"
    },
    {
      "host": {
        "sourcePath": "/etc/dnf/vars"
      },
      "name": "etc_dnf_vars"
    },
    {
      "host": {
        "sourcePath": "/etc/rhsm"
      },
      "name": "etc_rhsm"
    }
  ],
  "family": "datadog-agent-task"
}

If the operating system image is Ubuntu or Debian, add the following after environment:

"dockerSecurityOptions": [
  "apparmor:unconfined"
]

For optional HTTPS support, also add:

"mountPoints": [
  ...
  {
    "containerPath": "/host/root",
    "sourceVolume": "host_root"
  },
  ...
]
...
"volumes": [
  ...
  {
    "host": {
      "sourcePath": "/"
    },
    "name": "host_root"
  },
  ...
]

If you use load balancers with your services, enable additional cloud integrations to allow Universal Service Monitoring to discover cloud-managed entities:

Install the AWS Integration for visibility in AWS Load Balancer.
Enable ENI and EC2 metric collection.
Add the following tags to each load balancer:
```
ENV=<env>
SERVICE=<service>
```

For services running on IIS:

Install the Datadog Agent (version 6.41 or 7.41 and later) with the network kernel device driver component enabled. For Agent version 7.44 or earlier, you must pass ADDLOCAL="MainApplication,NPM" to the msiexec command during installation, or select Cloud Network Monitoring when running the Agent installation through the GUI.
Edit C:\ProgramData\Datadog\system-probe.yaml to set the enabled flag to true:
```
service_monitoring_config:
  enabled: true
```

For non-IIS services:

Discovery of non-IIS services is enabled by default starting with Agent version 7.57. Previous Agent versions may require the following configuration change to system-probe.yaml:

service_monitoring_config:
  enabled: true
  process_service_inference:
    enabled: true

Additional configuration

The following systems or services require additional configuration:

Non-containerized services on Linux

Universal Service Monitoring is available to monitor services running bare-metal on Linux virtual machines.

Requires Agent version 7.42 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enabled: true
  process_service_inference:
    enabled: true

DD_SYSTEM_PROBE_PROCESS_SERVICE_INFERENCE_ENABLED=true

Go TLS Monitoring

Universal Service Monitoring is available in beta to monitor TLS encrypted traffic from services implemented in Golang.

Note:

Go HTTPS servers can upgrade HTTP1.1 protocol to HTTP/2 which is supported in Preview. Reach out to your account manager for details.
Requires Agent version 7.51 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enabled: true
  tls:
    go:
      enabled: true

DD_SERVICE_MONITORING_CONFIG_TLS_GO_ENABLED=true

agents:
  containers:
    systemProbe:
      env:
        - name: DD_SERVICE_MONITORING_CONFIG_TLS_GO_ENABLED
          value: "true"

Node.js TLS Monitoring

Universal Service Monitoring is available in beta to monitor HTTP, HTTP/2, and gRPC requests from services implemented in Node.js.

Requires Agent version 7.54 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enabled: true
  tls:
    nodejs:
      enabled: true

DD_SERVICE_MONITORING_CONFIG_TLS_NODEJS_ENABLED=true

agents:
  containers:
    systemProbe:
      env:
        - name: DD_SERVICE_MONITORING_CONFIG_TLS_NODEJS_ENABLED
          value: "true"

Istio Monitoring

Universal Service Monitoring is available to monitor services behind Istio mTLS and to capture encrypted HTTPs, HTTP/2, and gRPC traffic. Requires Agent version 7.50 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enabled: true
  tls:
    istio:
      enabled: true

DD_SERVICE_MONITORING_CONFIG_TLS_ISTIO_ENABLED=true

agents:
  containers:
    systemProbe:
      env:
        - name: DD_SERVICE_MONITORING_CONFIG_TLS_ISTIO_ENABLED
          value: "true"

HTTP/2 monitoring

Universal Service Monitoring can capture HTTP/2 and gRPC traffic. Note:

Requires Linux Kernel version 5.2 or later.
Requires Agent version 7.53 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enable_http2_monitoring: true

DD_SERVICE_MONITORING_CONFIG_ENABLE_HTTP2_MONITORING=true

agents:
  containers:
    systemProbe:
      env:
        - name: DD_SERVICE_MONITORING_CONFIG_ENABLE_HTTP2_MONITORING
          value: "true"

Kafka Monitoring (Preview)

Kafka Monitoring is available in Preview.

Note:

Producers and consumers require Linux Kernel version 5.2 or later.
Producers and consumers must be interfacing with Kafka without TLS.
Requires Agent version 7.53 or greater.

Add the following configuration to the system-probe.yaml:

service_monitoring_config:
  enabled: true
  enable_kafka_monitoring: true

DD_SERVICE_MONITORING_CONFIG_ENABLE_KAFKA_MONITORING=true

datadog:
  ...
  serviceMonitoring:
    enabled: true

agents:
  ...
  containers:
    systemProbe:
      env:
        - name: DD_SERVICE_MONITORING_CONFIG_ENABLE_KAFKA_MONITORING
          value: "true"

Path exclusion and replacement

Use http_replace_rules or DD_SYSTEM_PROBE_NETWORK_HTTP_REPLACE_RULES to configure the Agent to drop HTTP endpoints that match a regex, or to convert matching endpoints into a different format.

Add the following configuration to the system-probe:

network_config:
  http_replace_rules:
    - pattern: "<exclusion rule>"
      repl: ""
    - pattern: "<replacement rule>"
      repl: "<new format>"

For example, the following configuration drops endpoints that start with /api/, such as /api/v1/users. However, it does not drop /api or /users/api:

network_config:
  http_replace_rules:
    - pattern: "/api/.*"
      repl: ""

The following configuration replaces an endpoint /api/users to match a new format of /api/v1/users:

network_config:
  http_replace_rules:
    - pattern: "/api/users"
      repl: "/api/v1/users"

Add the following entry:

DD_SYSTEM_PROBE_NETWORK_HTTP_REPLACE_RULES=[{"pattern":"<drop regex>","repl":""},{"pattern":"<replace regex>","repl":"<replace pattern>"}]

The following example drops the endpoint /my-api and replaces /my-api-2 with /new-version.

agents:
  containers:
    systemProbe:
      env:
        - name: DD_SYSTEM_PROBE_NETWORK_HTTP_REPLACE_RULES
          value: '[{"pattern":"/my-api","repl":""},{"pattern":"/my-api-2","repl":"/new-version"}]'

Support for additional protocols and encryption methods

USM is in Preview for discovering cloud services and decoding additional protocols and traffic encryption methods. For more information and to request access to the Preview, read Cloud Service Discovery and Additional Protocols.