matomo-org / matomo-org/docker
nginx: [emerg] host not found in upstream "app:9000" in /etc/nginx/conf.d/default.conf:2
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Description
On running the docker-compose on AWS ECS, the system is throwing below error. Please let me know how to fix it?
nginx: [emerg] host not found in upstream "app:9000" in /etc/nginx/conf.d/default.conf:2
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with /etc/nginx/conf.d/default.conf, especially line 2, and compare the upstream name with the services defined in the Docker Compose and AWS ECS configuration. Reproduce the deployment and determine why app:9000 cannot be resolved; done means Nginx starts successfully and can reach the intended application service.
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Assessment
- Tech stack
- docker, nginx
- Domain
- devops, infrastructure
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100