Configure Unified Service Tags on Linux hosts and verify Single Step Instrumentation.
npx skills add https://github.com/datadog-labs/agent-skills --skill enable-ssi
Please help me install this Agent Skill. Skill: enable-ssi Source: https://github.com/datadog-labs/agent-skills/tree/main/dd-apm/linux-ssi/enable-ssi Command: npx skills add https://github.com/datadog-labs/agent-skills --skill enable-ssi
Linux hosts running the Datadog Agent with SSI often require unified service tagging to ensure traces are correctly labeled with service, environment, and version. This skill automates the configuration and verification process for SSI on Linux, enabling consistent tagging across services without code changes.
Follow the steps to configure UST on a Linux host and verify SSI injection for a running service.
High-intent search queries and answers about installing and using this skill.
To configure Unified Service Tags on a Linux service, apply DD_SERVICE, DD_ENV, and DD_VERSION variables to the target systemd service. This ensures environment and version data propagate to traces automatically without requiring code changes.
Single Step Instrumentation verifies tagging by checking the launcher presence and inspecting /proc/<pid>/maps contents. It confirms the service appears with the correct environment in its process environment to validate trace attribution.
Yes, SSH access is required to verify SSI injection on a remote Linux host. You must provide SSH_KEY, SSH_USER, and SSH_HOST variables to connect and check the systemd service environment and instrumentation status.
Tagging services and verifying SSI requires SERVICE_NAME, ENV, VERSION, SYSTEMD_SERVICE_NAME, SSH_KEY, SSH_USER, and SSH_HOST variables. Knowledge of the target systemd service is also necessary to ensure proper configuration.
Automating Datadog trace tagging without code changes is done by applying Unified Service Tags via Single Step Instrumentation. This configures the target Linux service directly to inject service, environment, and version metadata into traces.
Missing environment or version data on Linux traces occurs when Unified Service Tags are not applied to the systemd service. Configuring DD_ENV and DD_VERSION variables through SSI ensures this data propagates correctly to trace attribution.
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