132 lines
4.8 KiB
Markdown
132 lines
4.8 KiB
Markdown
---
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title: 'Node Server Tutorial - Part 5: Docker Target'
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description: In this tutorial you'll create a backend-focused workspace with Nx.
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---
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# Node Server Tutorial - Part 5: Docker Target
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## Using Docker
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Let's take a look at the `Dockerfile` that was generated when we first created the repo.
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```{% filename="/Dockerfile" %}
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# This file is generated by Nx.
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#
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# Build the docker image with `npx nx docker-build products-api`.
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# Tip: Modify "docker-build" options in project.json to change docker build args.
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#
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# Run the container with `docker run -p 3000:3000 -t products-api`.
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FROM docker.io/node:lts-alpine
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ENV HOST=0.0.0.0
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ENV PORT=3000
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WORKDIR /app
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RUN addgroup --system products-api && \
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adduser --system -G products-api products-api
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COPY dist/products-api products-api
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RUN chown -R products-api:products-api .
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CMD [ "node", "products-api" ]
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```
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There is also an Nx target to build your Docker image.
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```{% command="npx nx docker-build products-api" path="~/products-api" %}
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> nx run products-api:build
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> nx run products-api:docker-build
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#1 [internal] load build definition from Dockerfile
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#1 sha256:4c99d8269ea9b513bd4dc776dba71aa66d5829ea8e590b8aeb803a2067f59cd7
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#1 transferring dockerfile: 37B done
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#1 DONE 0.0s
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#2 [internal] load .dockerignore
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#2 sha256:e71d5f0270d20785d8ae5f235f0abefd0806a3001ce09bbd5fd6f34cb8b1ca81
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#2 transferring context: 2B done
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#2 DONE 0.0s
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#3 [internal] load metadata for docker.io/library/node:lts-alpine
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#3 sha256:e161ecf2e6f1cf45a4881933800e629a1213e55a987b539a70bb5826846509fd
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#3 DONE 0.2s
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#8 [1/5] FROM docker.io/library/node:lts-alpine@sha256:fda98168118e5a8f4269efca4101ee51dd5c75c0fe56d8eb6fad80455c2f5827
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#8 sha256:00cf67cfc27afade2e1236f1196ec1d784e6c26792e57b580683350c09199e48
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#8 DONE 0.0s
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#9 [internal] load build context
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#9 sha256:9103d257e071bd890d889058da8bff61c78e8bb01b7ed24337b78f75e8830218
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#9 transferring context: 1.70MB 0.1s done
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#9 DONE 0.1s
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#4 [2/5] WORKDIR /app
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#4 sha256:17db46c2fd7998a5902ae01d80def26aa254289bbab2c6fc5aacc55252ac84b0
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#4 CACHED
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#5 [3/5] RUN addgroup --system products-api && adduser --system -G products-api products-api
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#5 sha256:b44659fc59b4a2b2d6e4ab5e87ab46bcef11185d06154f4b1ec6d7a1753379f2
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#5 CACHED
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#6 [4/5] COPY dist/products-api products-api
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#6 sha256:b903d3e7efcc38acf17f87fc8de482eb267fe0269156e8862cf149cdee04c2df
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#6 CACHED
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#7 [5/5] RUN chown -R products-api:products-api .
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#7 sha256:250b9a198f6002246bab3725d205af49d6327990451320d8642f56b9882f4f0a
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#7 CACHED
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#10 exporting to image
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#10 sha256:e8c613e07b0b7ff33893b694f7759a10d42e180f2b4dc349fb57dc6b71dcab00
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#10 exporting layers done
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#10 writing image sha256:e3543d878821de18de83201719f1f333bb7072a50e42216ff5c253db9081ce71 done
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#10 naming to docker.io/library/products-api done
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#10 DONE 0.0s
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Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them
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————————————————————————————————————————————————————————————————————————————————————————————————————————————
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> NX Successfully ran target docker-build for project products-api and 1 task it depends on (2s)
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View logs and investigate cache misses at https://nx.app/runs/NrNdfzx12g
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```
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The `docker-build` command is defined as a target in the root `project.json` file. If you need to make any modifications to the command, you can make them there. Note that this target is set up so that the `build` target will always be run first.
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```json {% filename="/project.json" %}
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{
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"targets": {
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"docker-build": {
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"dependsOn": ["build"],
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"command": "docker build -f orders-api/Dockerfile . -t orders-api"
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}
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}
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}
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```
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## Generate a Micro-service with a Docker File
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You can also add a `Dockerfile` to a new node app using the `--docker` flag. Here we're creating an `orders-api` application:
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```{% command="npx nx g @nrwl/node:app orders-api --docker" path="~/products-api" %}
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> NX Generating @nrwl/node:application
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✔ Which framework do you want to use? · express
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CREATE orders-api/src/assets/.gitkeep
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CREATE orders-api/src/main.ts
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CREATE orders-api/tsconfig.app.json
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CREATE orders-api/tsconfig.json
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CREATE orders-api/project.json
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CREATE orders-api/.eslintrc.json
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CREATE orders-api/jest.config.ts
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CREATE orders-api/tsconfig.spec.json
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CREATE orders-api-e2e/project.json
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CREATE orders-api-e2e/jest.config.ts
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CREATE orders-api-e2e/src/orders-api/orders-api.spec.ts
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CREATE orders-api-e2e/src/support/global-setup.ts
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CREATE orders-api-e2e/src/support/global-teardown.ts
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CREATE orders-api-e2e/src/support/test-setup.ts
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CREATE orders-api-e2e/tsconfig.json
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CREATE orders-api-e2e/tsconfig.spec.json
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CREATE orders-api-e2e/.eslintrc.json
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CREATE orders-api/Dockerfile
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```
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## What's Next
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- Continue to [6: Summary](/node-server-tutorial/6-summary)
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