305 lines
12 KiB
Markdown
305 lines
12 KiB
Markdown
---
|
|
slug: /
|
|
displayed_sidebar: europa
|
|
---
|
|
|
|
# CI/CD in your local dev
|
|
|
|
Everyone should be able to develop, test and run their CI/CD pipeline locally.
|
|
Having to commit & push in order to test a change slows down iteration.
|
|
This guide shows you the Dagger way.
|
|
Within 5 minutes, you will have a local CI/CD loop and run your first test & build pipeline.
|
|
|
|
import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem';
|
|
import BrowserOnly from '@docusaurus/BrowserOnly';
|
|
|
|
<BrowserOnly>
|
|
{() =>
|
|
<Tabs defaultValue={
|
|
window.navigator.userAgent.indexOf('Linux') != -1 ? 'linux':
|
|
window.navigator.userAgent.indexOf('Win') != -1 ? 'windows':
|
|
'macos'}
|
|
groupId="os"
|
|
values={[
|
|
{label: 'macOS', value: 'macos'}, {label: 'Linux', value: 'linux'}, {label: 'Windows', value: 'windows'},
|
|
]}>
|
|
|
|
<TabItem value="macos">
|
|
|
|
We assume that you have [Homebrew](https://brew.sh/) installed.
|
|
If you do, you can install `dagger` with a single command:
|
|
|
|
```shell
|
|
brew install dagger/tap/dagger
|
|
```
|
|
|
|
This installs `dagger` in `/opt/homebrew/bin`:
|
|
|
|
```shell
|
|
type dagger
|
|
dagger is /opt/homebrew/bin/dagger
|
|
```
|
|
|
|
If you do not have Homebrew installed, or you want to install a specific version of `dagger`, you can run:
|
|
|
|
```shell
|
|
curl -L https://dl.dagger.io/dagger/install.sh | DAGGER_VERSION=0.2.4 sh
|
|
|
|
./bin/dagger version
|
|
dagger 0.2.4 (GIT_SHA) darwin/arm64
|
|
```
|
|
|
|
Before we can build & test our example app with `dagger`, we need to have Docker running.
|
|
You most likely already have Docker set up.
|
|
If not, [Docker Desktop](https://www.docker.com/products/docker-desktop) makes this easy.
|
|
|
|
With Docker running, we are ready to download our example app and run its CI/CD pipeline locally:
|
|
|
|
```shell
|
|
git clone https://github.com/dagger/dagger
|
|
cd dagger
|
|
git checkout v0.2.4
|
|
|
|
cd pkg/universe.dagger.io/examples/todoapp
|
|
dagger do build
|
|
```
|
|
|
|
With an empty cache, installing all dependencies, then testing & generating a build for this example app completes in just under 3 minutes:
|
|
|
|
```shell
|
|
[✔] client.filesystem."./".read 0.1s
|
|
[✔] actions.deps 118.8s
|
|
[✔] actions.test.script 0.1s
|
|
[✔] actions.test 6.3s
|
|
[✔] actions.build.run.script 0.0s
|
|
[✔] actions.build.run 43.7s
|
|
[✔] actions.build.contents 0.4s
|
|
[✔] client.filesystem."./_build".write 0.1s
|
|
```
|
|
|
|
Since this is a static application, we can open the files which are generated in `actions.build.contents` in a browser.
|
|
The last step - `client.filesystem.build.write` - copies the build result into the `_build` directory on the host.
|
|
|
|
On macOS, we run `open _build/index.html` in our terminal and see the following app preview:
|
|
|
|
|
|
|
|
One of the big advantages to this approach is that we did not have to install any dependencies specific to this application.
|
|
Dagger managed all the intermediary steps, and we ended up with the end-result on our host, without any of the transient dependencies.
|
|
|
|
Now that we have everything running locally, let us make a change and get a feel for our local CI/CD loop.
|
|
The quicker we can close this loop, the quicker we can learn what actually works.
|
|
With Dagger, we can close this loop locally, without committing and pushing our changes.
|
|
And since every action is cached, subsequent runs will be quicker.
|
|
|
|
In the todoapp directory, edit line `25` of `src/components/Form.js` and save the file.
|
|
|
|
I change this line to `What must be done today?` and run the build locally again:
|
|
|
|
```shell
|
|
dagger do build
|
|
|
|
[✔] client.filesystem."./".read 0.0s
|
|
[✔] actions.deps 7.5s
|
|
[✔] actions.test.script 0.0s
|
|
[✔] actions.test 6.0s
|
|
[✔] actions.build.run.script 0.0s
|
|
[✔] actions.build.run 29.2s
|
|
[✔] actions.build.contents 0.0s
|
|
[✔] client.filesystem."./_build".write 0.1s
|
|
```
|
|
|
|
The total `42.8` time is macOS specific, since the Linux alternative is more than 8x quicker.
|
|
Either way, this local test & build loop is likely to change our approach to iterating on changes.
|
|
It becomes even more obvious when the change is not as straightforward as knowing _exactly_ which line to edit.
|
|
|
|
</TabItem>
|
|
|
|
<TabItem value="linux">
|
|
|
|
The quickest way of installing `dagger` on Linux is to run the following command:
|
|
|
|
```shell
|
|
cd /usr/local
|
|
curl -L https://dl.dagger.io/dagger/install.sh | sh
|
|
```
|
|
|
|
This installs `dagger` in `/usr/local/bin`:
|
|
|
|
```shell
|
|
type dagger
|
|
dagger is /usr/local/bin/dagger
|
|
```
|
|
|
|
If you want to install dagger to a different location, `cd` where you want `./bin/dagger` in.
|
|
|
|
If you want to install a specific version of `dagger`, you can run:
|
|
|
|
```shell
|
|
curl -L https://dl.dagger.io/dagger/install.sh | DAGGER_VERSION=0.2.4 sh
|
|
|
|
./bin/dagger version
|
|
dagger 0.2.4 (GIT_SHA) linux/amd64
|
|
```
|
|
|
|
Before we can build, test & deploy our example app with `dagger`, we need to have Docker Engine running.
|
|
You most likely already have Docker Engine set up.
|
|
If not, [install Docker Engine on Linux](https://docs.docker.com/engine/install/#server) makes this easy.
|
|
|
|
With Docker Engine running, we are ready to download our example app and run its CI/CD pipeline:
|
|
|
|
```shell
|
|
git clone https://github.com/dagger/dagger
|
|
cd dagger
|
|
git checkout v0.2.4
|
|
|
|
cd pkg/universe.dagger.io/examples/todoapp
|
|
dagger do build
|
|
```
|
|
|
|
With an empty cache, installing all dependencies, then testing & generating a build for this example app completes in just under 1 minute:
|
|
|
|
```shell
|
|
[✔] client.filesystem."./".read 0.3s
|
|
[✔] actions.deps 39.7s
|
|
[✔] actions.test.script 0.2s
|
|
[✔] actions.test 1.9s
|
|
[✔] actions.build.run.script 0.1s
|
|
[✔] actions.build.run 10.0s
|
|
[✔] actions.build.contents 0.6s
|
|
[✔] client.filesystem."./_build".write 0.1s
|
|
```
|
|
|
|
Since this is a static application, we can open the files which are generated in `actions.build.contents` in a browser.
|
|
The last step - `client.filesystem.build.write` - copies the build result into the `_build` directory on the host.
|
|
|
|
On Linux, we run `xdg-open _build/index.html` in our terminal and see the following app preview:
|
|
|
|
|
|
|
|
One of the big advantages to this approach is that we did not have to install any dependencies specific to this application.
|
|
Dagger managed all the intermediary steps, and we ended up with the end-result on our host, without any of the transient dependencies.
|
|
|
|
Now that we have everything running locally, let us make a change and get a feel for our local CI/CD loop.
|
|
The quicker we can close this loop, the quicker we can learn what actually works.
|
|
With Dagger, we can close this loop locally, without committing and pushing our changes.
|
|
And since every action is cached, subsequent runs will be quicker.
|
|
|
|
In the todoapp directory, edit line `25` of `src/components/Form.js` and save the file.
|
|
|
|
I change this line to `What must be done today?` and run the build locally again:
|
|
|
|
```shell
|
|
dagger do build
|
|
|
|
[✔] client.filesystem."./".read 0.0s
|
|
[✔] actions.deps 1.1s
|
|
[✔] actions.test.script 0.0s
|
|
[✔] actions.test 0.0s
|
|
[✔] actions.build.run.script 0.8s
|
|
[✔] actions.build.run 2.9s
|
|
[✔] actions.build.contents 0.0s
|
|
[✔] client.filesystem."./_build".write 0.0s
|
|
```
|
|
|
|
Being able to re-run the test & build loop locally in `4.8s`, at the same speed as running `yarn` scripts locally and without adding any extra dependencies to our host, is likely to change our approach to iterating on changes.
|
|
It becomes even more obvious when the change is not as straightforward as knowing _exactly_ which line to edit.
|
|
|
|
</TabItem>
|
|
|
|
<TabItem value="windows">
|
|
|
|
We assume that you have [curl](https://curl.se/windows/) installed.
|
|
If you do, you can install `dagger` with a few commands. From a powershell terminal, run:
|
|
|
|
```shell
|
|
curl https://dl.dagger.io/dagger/install.ps1 -OutFile install.ps1
|
|
./install.ps1
|
|
rm install.ps1
|
|
```
|
|
|
|
We try to move the dagger binary under `C:\Windows\System32` but
|
|
in case we miss the necessary permissions, we'll save everything under `<your home folder>/dagger`
|
|
|
|
Check that `dagger` is installed correctly by opening a `Command Prompt` terminal and run:
|
|
|
|
```shell
|
|
where dagger
|
|
C:\<your home folder>\dagger.exe
|
|
```
|
|
|
|
Before we can build & test our example app with `dagger`, we need to have Docker running.
|
|
You most likely already have Docker set up.
|
|
If not, [Docker Desktop](https://www.docker.com/products/docker-desktop) makes this easy.
|
|
With Docker running, we are ready to download our example app and run its CI/CD pipeline.
|
|
Still in your `Command Prompt` terminal:
|
|
|
|
```shell
|
|
git clone https://github.com/dagger/dagger
|
|
cd dagger
|
|
git checkout v0.2.4
|
|
|
|
cd pkg/universe.dagger.io/examples/todoapp
|
|
dagger do build
|
|
```
|
|
|
|
With an empty cache, installing all dependencies, then testing & generating a build for this example app completes in just under a minute:
|
|
|
|
```shell
|
|
[✔] actions.deps 62.1s
|
|
[✔] actions.build.run.script 0.4s
|
|
[✔] actions.test.script 0.5s
|
|
[✔] client.filesystem."./".read 0.6s
|
|
[✔] actions.test 2.0s
|
|
[✔] actions.build.run 12.4s
|
|
[✔] actions.build.contents 0.1s
|
|
[✔] client.filesystem."./_build".write 0.2s
|
|
```
|
|
|
|
Since this is a static application, we can open the files which are generated in `actions.build.contents` in a browser.
|
|
The last step - `client.filesystem.build.write` - copies the build result into the `_build` directory on the host.
|
|
|
|
On Windows, we run `start _build/index.html` in our `Command Prompt` terminal and see the following app preview:
|
|
|
|
|
|
|
|
One of the big advantages to this approach is that we did not have to install any dependencies specific to this application.
|
|
Dagger managed all the intermediary steps, and we ended up with the end-result on our host, without any of the transient dependencies.
|
|
|
|
Now that we have everything running locally, let us make a change and get a feel for our local CI/CD loop.
|
|
The quicker we can close this loop, the quicker we can learn what actually works.
|
|
With Dagger, we can close this loop locally, without committing and pushing our changes.
|
|
And since every action is cached, subsequent runs will be quicker.
|
|
|
|
In the todoapp directory, edit line `25` of `src/components/Form.js` and save the file.
|
|
|
|
I change this line to `What must be done today?` and run the build locally again:
|
|
|
|
```shell
|
|
dagger do build
|
|
[✔] actions.build.run.script 0.0s
|
|
[✔] actions.deps 3.4s
|
|
[✔] client.filesystem."./".read 0.1s
|
|
[✔] actions.test.script 0.0s
|
|
[✔] actions.test 1.8s
|
|
[✔] actions.build.run 7.7s
|
|
[✔] actions.build.contents 0.2s
|
|
[✔] client.filesystem."./_build".write 0.2s
|
|
```
|
|
|
|
Being able to re-run the test & build loop locally in `13.6s`, without adding any extra dependencies to our host, is likely to change our approach to iterating on changes.
|
|
It becomes even more obvious when the change is not as straightforward as knowing _exactly_ which line to edit.
|
|
|
|
</TabItem>
|
|
|
|
</Tabs>
|
|
}
|
|
|
|
</BrowserOnly>
|
|
|
|
:::tip
|
|
Now that we are comfortable with our local CI/CD loop, let us configure a remote CI environment in the second part.
|
|
The difference is that we will also deploy the build output to Netlify.
|
|
Dagger makes this easy.
|
|
:::
|