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Deployment Events

When to Use

Use this query when a deployment appears to stall, partially succeeds, or causes immediate unhealthy instances and you need a time-ordered view of platform activity.

flowchart TD
    A[eb-activity.log] --> B[Filter deploy lifecycle lines]
    B --> C[Bucket events by phase]
    C --> D[Compare with error and health signals]

Prerequisites

  • Log group: /aws/elasticbeanstalk/$ENV_NAME/var/log/eb-activity.log
  • Related log groups: /aws/elasticbeanstalk/$ENV_NAME/var/log/web.stdout.log and /aws/elasticbeanstalk/$ENV_NAME/var/log/nginx/error.log
  • IAM permissions: logs:StartQuery, logs:GetQueryResults, and logs:DescribeLogGroups

Query

fields @timestamp, @message
| filter @message like /deploy|deployment|command|failed|Successfully deployed|Hook/
| parse @message /(?<phase>deploy|deployment|command|Hook|failed|Successfully deployed)/
| stats count() as eventCount, min(@timestamp) as firstSeen, max(@timestamp) as lastSeen by phase
| sort lastSeen desc

Example Output

phase eventCount firstSeen lastSeen
deploy 12 2026-04-07 14:00:11 2026-04-07 14:04:32
failed 2 2026-04-07 14:03:18 2026-04-07 14:03:21
Successfully deployed 1 2026-04-07 14:04:32 2026-04-07 14:04:32

How to Read the Results

Tip

A Successfully deployed line does not prove the application is healthy. If failures or command retries appear immediately before that marker, check startup logs and health transitions next to see whether the platform delivered the version but the process failed after launch.

Variations

  • Show raw deployment lines in order:

    fields @timestamp, @message
| filter @message like /deploy|deployment|command|failed|Successfully deployed|Hook/
| sort @timestamp asc
| limit 100

  • Narrow to failed command activity:

    fields @timestamp, @message
| filter @message like /failed|Command hooks failed|Hook/
| sort @timestamp desc
| limit 50

See Also

  • troubleshooting/cloudwatch/platform/index.md
  • troubleshooting/cloudwatch/application/startup-errors.md
  • troubleshooting/cloudwatch/correlation/deploy-vs-errors.md
  • troubleshooting/playbooks/deployment-availability/deployment-failed.md

Sources

  • https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/CWL_QuerySyntax.html
  • https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.logging.html
  • https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/troubleshooting.html