infra: Fix keep-alive

[khvn26]

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Changes

In this PR, we establish a keep-alive TTL slightly higher than ALB's to avoid ALB reusing a keep-alive socket that Gunicorn had already closed.

How did you test this code?

Will test on prod.

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3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
docs	Ignored		Jul 27, 2026 9:30am
flagsmith-frontend-preview	Ignored		Jul 27, 2026 9:30am
flagsmith-frontend-staging	Ignored		Jul 27, 2026 9:30am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 32839734-bf29-45c7-9ea2-13d781bd007a

📥 Commits

Reviewing files that changed from the base of the PR and between c174d2e and c70fe99.

📒 Files selected for processing (4)

• infrastructure/aws/production/ecs-task-definition-admin-api.json
• infrastructure/aws/production/ecs-task-definition-sdk-api.json
• infrastructure/aws/staging/ecs-task-definition-admin-api.json
• infrastructure/aws/staging/ecs-task-definition-sdk-api.json

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📝 Walkthrough

Walkthrough

The production and staging ECS task definitions for the admin and SDK APIs update the flagsmith-api container command from serve to serve --keep-alive 75.

Estimated code review effort: 1 (Trivial) | ~5 minutes

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