doc: Improve wording on “Go on Docker Hub” use case
Signed-off-by: Helder Correia <174525+helderco@users.noreply.github.com>
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Helder Correia
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d8fbbf5055
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995881ffb5
@ -30,8 +30,8 @@ dagger.#Plan & {
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}
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}
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// Run go unit test
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"unit-test": go.#Test & {
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// Run go unit tests
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unitTest: go.#Test & {
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source: _code
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package: "./..."
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input: _base.output
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@ -43,13 +43,10 @@ dagger.#Plan & {
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}
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// Build docker image (depends on build)
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image: {
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_base: alpine.#Build & {}
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docker.#Build & {
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image: docker.#Build & {
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steps: [
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alpine.#Build,
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docker.#Copy & {
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input: _base.output
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contents: build.output
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dest: "/usr/bin"
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},
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@ -58,7 +55,6 @@ dagger.#Plan & {
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},
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]
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}
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}
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// Push image to remote registry (depends on image)
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push: {
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@ -69,7 +65,7 @@ dagger.#Plan & {
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"image": image.output
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dest: "\(_dockerUsername)/<my_repository>"
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auth: {
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username: "\(_dockerUsername)"
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username: _dockerUsername
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secret: client.env.DOCKER_PASSWORD
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}
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}
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@ -4,11 +4,9 @@ import (
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)
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// Build docker image (depends on build)
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image: {
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_base: alpine.#Build & {}
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docker.#Build & {
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image: docker.#Build & {
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steps: [
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alpine.#Build,
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docker.#Copy & {
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input: _base.output
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contents: build.output
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@ -19,4 +17,3 @@ image: {
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},
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]
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}
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}
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@ -7,7 +7,7 @@ push: {
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"image": image.output
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dest: "\(_dockerUsername)/<my_repository>"
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auth: {
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username: "\(_dockerUsername)"
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username: _dockerUsername
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secret: client.env.DOCKER_PASSWORD
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}
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}
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@ -1,5 +1,5 @@
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// Run go unit test
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"unit-test": go.#Test & {
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// Run go unit tests
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unitTest: go.#Test & {
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source: _code
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package: "./..."
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input: _base.output
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@ -5,22 +5,21 @@ displayed_sidebar: europa
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# Go on Docker Hub
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Dagger stand as a powerful CI/CD tool that works on any environment.
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Dagger stands as a powerful CI/CD tool that works on any environment.
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For instance, you can use [go package](https://github.com/dagger/dagger/tree/main/pkg/universe.dagger.io/go)
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to control the whole CI/CD process, from test to push into a remote registry.
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For instance, you can use the [Dagger Go package](https://github.com/dagger/dagger/tree/main/pkg/universe.dagger.io/go)
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to control the whole CI/CD process, from testing to pushing into a remote registry.
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:::tip
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Following examples can be used as a template for any standalone go project.
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The following examples can be used as a template for any standalone Go project.
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:::
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## Retrieve Go project
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First important step is to make go project accessible in dagger plan.
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The first step is to make your Go project accessible to the Dagger plan.
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You can indeed choose which files to include in the filesystem.
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Since it's a Golang project, filesystem should contain module and every go
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source files:
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You can indeed choose which files to include. Since it's a Golang project
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it should contain the module and all Go source files:
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```cue file=../tests/use-cases/ci-cd-for-go-project/retrieve-go-project/dagger.cue
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```
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@ -32,60 +31,59 @@ act as an alias.
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## Build a Go base image
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[Dagger go universe](https://github.com/dagger/dagger/tree/main/pkg/universe.dagger.io/go)
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provide a [base image](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/image.cue)
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to build your pipeline but your project may use `CGO` or any external dependencies.
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The [universe.dagger.io/go](https://github.com/dagger/dagger/tree/main/pkg/universe.dagger.io/go)
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package provides a [base image](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/image.cue)
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to build your pipeline, but your project may use `CGO` or any external dependencies.
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You can customize that base image to install required dependencies:
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You can customize the base image to install required dependencies:
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```cue file=../tests/use-cases/ci-cd-for-go-project/base.cue.fragment
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```
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## Run unit test
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## Run unit tests
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Before deliver your application, you certainly want to run unit test.
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Before delivering your application, you certainly want to run unit tests.
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By using previous steps, you can use the [test](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/test.cue)
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definition to run your unit test:
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Use the [#Test](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/test.cue)
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definition:
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```cue file=../tests/use-cases/ci-cd-for-go-project/test.cue.fragment
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```
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<!-- FIXME(TomChv): we should write a bunch of documentation about TDD with dagger -->
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:::tip
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You can also use dagger to write integration tests
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You can also use Dagger to write integration tests.
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:::
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## Build Go binary
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To put your go project on docker hub, you first need to compile a binary.
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To put your Go project on Docker Hub, you first need to compile a binary.
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Go universe expose a [build](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/build.cue)
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definition so you can build a binary:
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Use the [#Build](https://github.com/dagger/dagger/blob/main/pkg/universe.dagger.io/go/build.cue)
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definition to do that:
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```cue file=../tests/use-cases/ci-cd-for-go-project/build.cue.fragment
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```
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:::tip
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You can control the binary platform with `os` and `arch` field.
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You can control the binary platform with `os` and `arch` fields.
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:::
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## Prepare docker image
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To make it usable by other user, you must put your binary in an image and set an entrypoint.
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To make it usable for other users, you must put your binary in an image and set an entrypoint.
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For optimisation purpose, you can use alpine as base image to contain your binary:
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For optimization purposes, you can use alpine as the base image to contain your binary:
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```cue file=../tests/use-cases/ci-cd-for-go-project/image.cue.fragment
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```
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## Push to Docker Hub
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To push an image to docker hub, you will need to forward credential to allow
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dagger push.
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To push an image to Docker Hub, you will need your private credentials.
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To not hard code your docker password in the plan, you can retrieve it as an
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environment value:
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To not hard code your docker password in the plan, you can retrieve it
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from your environment:
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```cue
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dagger.#Plan & {
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@ -104,7 +102,7 @@ You can now push your image:
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## Complete CI/CD
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After merging all examples, you will have a complete CI/CD to deliver a go
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After merging all examples, you will have a complete CI/CD to deliver a Go
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binary on Docker Hub.
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```cue file=../tests/use-cases/ci-cd-for-go-project/complete-ci-cd/dagger.cue
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