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Expose Service To Host

docs/current_docs/partials/cookbook/services/_expose-service-to-host.mdx

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Expose services in Dagger Functions to the host

The Dagger Function below creates and returns an HTTP service. This service can be used from the host.

<Tabs groupId="language" queryString="sdk"> <TabItem value="go" label="Go">
go
</TabItem> <TabItem value="python" label="Python">
python
</TabItem> <TabItem value="typescript" label="TypeScript">
typescript
</TabItem> <TabItem value="php" label="PHP">
php
</TabItem> </Tabs>

Examples

  • Expose the HTTP service instantiated by a Dagger Function to the host on the default port:
<Tabs groupId="shell"> <TabItem value="System shell"> ```shell dagger -c 'http-service | up' ``` </TabItem> <TabItem value="Dagger Shell"> ```shell title="First type 'dagger' for interactive mode." http-service | up ``` </TabItem> <TabItem value="Dagger CLI"> ```shell dagger call http-service up ``` </TabItem> </Tabs>

Access the service from the host:

shell
curl localhost:8080
  • Expose the HTTP service instantiated by a Dagger Function to the host on a different host port:
<Tabs groupId="shell"> <TabItem value="System shell"> ```shell dagger -c 'http-service | up --ports 9000:8080' ``` </TabItem> <TabItem value="Dagger Shell"> ```shell title="First type 'dagger' for interactive mode." http-service | up --ports 9000:8080 ``` </TabItem> <TabItem value="Dagger CLI"> ```shell dagger call http-service up --ports 9000:8080 ``` </TabItem> </Tabs>

Access the service from the host:

shell
curl localhost:9000