55 lines
2.2 KiB
Markdown
55 lines
2.2 KiB
Markdown
### Building and Running Webapps
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It is possible to build and run Next.js webapps using the `build-webapp` and `run-webapp` subcommands.
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To make it easier to build once and deploy into different environments and with different configuration,
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compilation and static page generation are separated in the `build-webapp` and `run-webapp` steps.
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This offers much more flexibilty than standard Next.js build methods, since any environment variables accessed
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via `process.env`, whether for pages or for API, will have values drawn from their runtime deployment environment,
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not their build environment.
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## Building
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Building usually requires no additional configuration. By default, the Next.js version specified in `package.json`
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is used, and either `yarn` or `npm` will be used automatically depending on which lock files are present. These
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can be overidden with the build arguments `CERC_NEXT_VERSION` and `CERC_BUILD_TOOL` respectively. For example: `--extra-build-args "--build-arg CERC_NEXT_VERSION=13.4.12"`
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**Example**:
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```
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$ cd ~/cerc
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$ git clone git@git.vdb.to:cerc-io/test-progressive-web-app.git
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$ laconic-so build-webapp --source-repo ~/cerc/test-progressive-web-app
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...
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Built host container for ~/cerc/test-progressive-web-app with tag:
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cerc/test-progressive-web-app:local
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To test locally run:
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laconic-so run-webapp --image cerc/test-progressive-web-app:local --env-file /path/to/environment.env
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```
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## Running
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With `run-webapp` a new container will be launched with runtime configuration provided by `--env-file` (if specified) and published on an available port. Multiple instances can be launched with different configuration.
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**Example**:
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```
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# Production env
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$ laconic-so run-webapp --image cerc/test-progressive-web-app:local --env-file /path/to/environment/production.env
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Image: cerc/test-progressive-web-app:local
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ID: 4c6e893bf436b3e91a2b92ce37e30e499685131705700bd92a90d2eb14eefd05
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URL: http://localhost:32768
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# Dev env
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$ laconic-so run-webapp --image cerc/test-progressive-web-app:local --env-file /path/to/environment/dev.env
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Image: cerc/test-progressive-web-app:local
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ID: 9ab96494f563aafb6c057d88df58f9eca81b90f8721a4e068493a289a976051c
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URL: http://localhost:32769
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```
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