35 lines
1.3 KiB
Markdown
35 lines
1.3 KiB
Markdown
# e.g. 3: Create an Ningx Reverse Proxy With Docker
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[How To Run Multiple Docker Containers Under One URL](https://codingwithmanny.medium.com/create-an-nginx-reverse-proxy-with-docker-a1c0aa9078f1)
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## Backend only
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How to test it:
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1. Comment all other containers
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2. Run `docker compose build` & `docker compose up`
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3. Test by `curl localhost:5000`, should return `{"version":"1.0.0"}`
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## Frontend only
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How to test it:
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1. Comment all other containers
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2. Run `docker compose build` & `docker compose up`
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3. Test by `curl localhost`, should return a html file (as `/eg3/frontend/index.html`)
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## Backend + Frontend
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In this section, we test frontend container can cross-communicate with backend container.
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Steps:
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1. Comment out proxy container
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2. frontend has port 80 exposed; backend has port 5000 exposed;
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3. Run `docker compose build` & `docker compose up`
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4. Create a network: `docker network create mynetwork`
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5. Add containers into network
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1. `docker network connect mynetwork backend`
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2. `docker network connect mynetwork frontend`
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6. Inspect `mynetwork` has containers `docker network inspect mynetwork`
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7. Test network:
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1. Enter frontend container: `docker exec -it frontend /bin/sh`
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2. Make a request to backend: `curl http://backend:5000`
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3. Get response `{"version": "1.0.0"}` |