How to enroll a custom agent build in Fleet

[zmoog]

Suppose you have a custom agent image and you want to enroll an agent in Fleet using that image.

During this test I will try with:

• stack version: 8.10.4
• agent version: 8.10.5-SNAPSHOT (custom build from the 8.10 branch with image id aec97a66257d — See Docker Hub for more).

[zmoog]

Create an Agent Policy

Create the agent policy you want to use and copy the enrollment token for that policy.

[zmoog]

Enroll the Agent

#
# Store the enrollment token and Fleet URL in an environment variable.
#

# For example, UXg4Nzdvc0JsWUhmeC1CNjZKdTM6a1lKMzd6cVNSemluc1NlN1Q5YTE0UQ==
export ENROLLMENT_TOKEN="<TOKEN>" 

# For example, https://whatever.fleet.eastus2.azure.elastic-cloud.com
export FLEET_URL="<URL>"

# Enroll the Agent
docker run \
    --rm \
    --name="elastic-agent" \
    -e FLEET_ENROLL=true \
    -e FLEET_URL=${FLEET_URL} \
        -e FLEET_ENROLLMENT_TOKEN=${ENROLLMENT_TOKEN} \
        -i zmoog/elastic-agent:8.10.5-SNAPSHOT