Skip to content

feat: add gitlab-ci integrations #118

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Jul 21, 2023
Merged
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
4 changes: 2 additions & 2 deletions docs/user_docs/guides/ci-integration/1-github-actions.md
Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ After submitting in the `flask-demo` repository, Github will automatically build

### 3. Configuration Automatic Update

After the Github CI process in the application repository is completed, a automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo-kcl-manifests` repository. The commit information is as follows
After the Github CI process in the application repository is completed, an automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo-kcl-manifests` repository. The commit information is as follows

![](/img/docs/user_docs/guides/ci-integration/image-auto-update.png)

Expand Down Expand Up @@ -158,4 +158,4 @@ From the above configuration, it can be seen that the image of the resource is i

## Summary

By integrating KCL and Github CI, we can automate the modification and deployment configuration of any application output container image, in order to achieve end-to-end application development process and improve R&D deployment efficiency.
By integrating KCL and Github CI, we can integrate the container build and delivery workflow by automatically updating the image values in the configuration, in order to achieve end-to-end application development process and improve R&D deployment efficiency.
135 changes: 135 additions & 0 deletions docs/user_docs/guides/ci-integration/2-gitlab-ci.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,135 @@
---
id: gitlab-ci
sidebar_label: Gitlab CI
---

# Gitlab CI Integration

## Introduction

In the GitOps section, we have introduced how to integrate KCL with GitOps. In this section, we will continue to provide sample solutions for KCL and CI integrations. We hope to implement the end-to-end application development process by using containers, Continuous Integration (CI) for generation, and GitOps for Continuous Deployment (CD). In this scheme, we use a **Flask application** and **Gitlab CI** as examples.

> Note: You can use any containerized application and different CI systems such as **Github Actions**, **Jenkins CI**, etc. in this solution.

The overall workflow is as follows:

+ Develop application code and submit it to the Gitlab repository to trigger CI.
+ Gitlab generate container images from application code and push them to the `docker.io` container registry.
+ Gitlab CI automatically synchronizes and updates the KCL manifest deployment file based on the version of the container image in the docker.io container registry.

## How to

We put the application source code and infrature deployment code in different repos, which can be maintained by different roles to achieve the separation of concerns.

+ Get the application code

```shell
git clone https://gitlab.com/kcl-lang/flask-demo.io.git/
cd flask-demo
```

## Summary

This is a web application written in Python. We can use the `Dockerfile` in the application directory to generate a container image of this application, and also use Gitlab CI to automatically build a image named `flask_demo`, the CI configuration is as follows

```yaml
stages:
- publish
- deploy

publish:
stage: publish
image:
name: cnych/kaniko-executor:v0.22.0
entrypoint: [""]
script:
- echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
- /kaniko/executor --context $CI_PROJECT_DIR --dockerfile ./Dockerfile --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
only:
- main

deploy:
stage: deploy
image: cnych/kustomize:v1.0
before_script:
- git remote set-url origin https://gitlab.com/kcl-lang/flask-demo
- git config --global user.email "[email protected]"
- git config --global user.name "GitLab CI/CD"
# Install KCL
- wget -q https://kcl-lang.io/script/install.sh -O - | /bin/bash
script:
- git checkout -B main
- cd deployment
# Image auto update
- /usr/local/kclvm/bin/kcl -d -O config.containers.flask_demo.image="$CI_REGISTRY_IMAGE:$CI_COMMIT_SHORT_SHA"
- git commit -am '[skip ci] image update to $CI_REGISTRY_IMAGE:$CI_COMMIT_SHORT_SHA'
- git push origin main
only:
- main
```

We need the workflow in the source code repository to automatically trigger the workflow in the deployment manifest repository. At this point, we need to config `Settings -> CI/CD -> Variables` including `CI_REGISTRY`, `CI_REGISTRY_IMAGE`, `CI_REGISTRY_USER`, `CI_REGISTRY_PASSWORD`, `CI_USERNAME` and `CI_PASSWORD` and update application code to trigger automation build and deploy.

![](/img/docs/user_docs/guides/ci-integration/gitlab-ci-variables.jpg)

### 2. Commit the Application Code

After submitting in the `flask-demo` repository, Gitlab will automatically build a container image and push it to the Docker hub. It will also then trigger the Action of the `flask-demo-kcl-manifest` repository and modify the image value in the deployment manifest repository through [KCL Automation API](/docs/user_docs/guides/automation). Now let's create a submission in the `flask-demo` repository, and we can see that the code submission triggers the Gitlab CI process for the application repository `Build -> Pipelines` page.

### 3. Configuration Automatic Update

After the Gitlab CI process in the application repository is completed, an automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo` repository.

+ We can obtain the deployment manifest source code for compilation and validation

```shell
git checkout main && git pull && cd deploy && kcl
```

The output YAML is

```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: flask_demo
labels:
app: flask_demo
spec:
replicas: 1
selector:
matchLabels:
app: flask_demo
template:
metadata:
labels:
app: flask_demo
spec:
containers:
- name: flask_demo
image: "kcllang/flask_demo:6428cff4309afc8c1c40ad180bb9cfd82546be3e"
ports:
- protocol: TCP
containerPort: 5000
---
apiVersion: v1
kind: Service
metadata:
name: flask_demo
labels:
app: flask_demo
spec:
type: NodePort
selector:
app: flask_demo
ports:
- port: 5000
protocol: TCP
targetPort: 5000
```

From the above configuration, it can be seen that the image of the resource is indeed automatically updated to the newly constructed image value. In addition, we can also use the **Argo CD KCL plugin** to automatically synchronize data from the Git repository and deploy the application to the Kubernetes cluster.

## Summary

By integrating KCL and Gitlab CI, we can integrate the container build and delivery workflow by automatically updating the image values in the configuration, in order to achieve end-to-end application development process and improve R&D deployment efficiency.
12 changes: 0 additions & 12 deletions docs/user_docs/guides/ci-integration/_2-gitlab-ci.md

This file was deleted.

1 change: 1 addition & 0 deletions flask-demo
Submodule flask-demo added at f92091
1 change: 1 addition & 0 deletions pages
Submodule pages added at ebefa4
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Original file line number Diff line number Diff line change
Expand Up @@ -100,7 +100,7 @@ After submitting in the `flask-demo` repository, Github will automatically build

### 3. Configuration Automatic Update

After the Github CI process in the application repository is completed, a automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo-kcl-manifests` repository. The commit information is as follows
After the Github CI process in the application repository is completed, an automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo-kcl-manifests` repository. The commit information is as follows

![](/img/docs/user_docs/guides/ci-integration/image-auto-update.png)

Expand Down Expand Up @@ -158,4 +158,4 @@ From the above configuration, it can be seen that the image of the resource is i

## Summary

By integrating KCL and Github CI, we can automate the modification and deployment configuration of any application output container image, in order to achieve end-to-end application development process and improve R&D deployment efficiency.
By integrating KCL and Github CI, we can integrate the container build and delivery workflow by automatically updating the image values in the configuration, in order to achieve end-to-end application development process and improve R&D deployment efficiency.
Original file line number Diff line number Diff line change
@@ -0,0 +1,135 @@
---
id: gitlab-ci
sidebar_label: Gitlab CI
---

# Gitlab CI Integration

## Introduction

In the GitOps section, we have introduced how to integrate KCL with GitOps. In this section, we will continue to provide sample solutions for KCL and CI integrations. We hope to implement the end-to-end application development process by using containers, Continuous Integration (CI) for generation, and GitOps for Continuous Deployment (CD). In this scheme, we use a **Flask application** and **Gitlab CI** as examples.

> Note: You can use any containerized application and different CI systems such as **Github Actions**, **Jenkins CI**, etc. in this solution.

The overall workflow is as follows:

+ Develop application code and submit it to the Gitlab repository to trigger CI.
+ Gitlab generate container images from application code and push them to the `docker.io` container registry.
+ Gitlab CI automatically synchronizes and updates the KCL manifest deployment file based on the version of the container image in the docker.io container registry.

## How to

We put the application source code and infrature deployment code in different repos, which can be maintained by different roles to achieve the separation of concerns.

+ Get the application code

```shell
git clone https://gitlab.com/kcl-lang/flask-demo.io.git/
cd flask-demo
```

## Summary

This is a web application written in Python. We can use the `Dockerfile` in the application directory to generate a container image of this application, and also use Gitlab CI to automatically build a image named `flask_demo`, the CI configuration is as follows

```yaml
stages:
- publish
- deploy

publish:
stage: publish
image:
name: cnych/kaniko-executor:v0.22.0
entrypoint: [""]
script:
- echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
- /kaniko/executor --context $CI_PROJECT_DIR --dockerfile ./Dockerfile --destination $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
only:
- main

deploy:
stage: deploy
image: cnych/kustomize:v1.0
before_script:
- git remote set-url origin https://gitlab.com/kcl-lang/flask-demo
- git config --global user.email "[email protected]"
- git config --global user.name "GitLab CI/CD"
# Install KCL
- wget -q https://kcl-lang.io/script/install.sh -O - | /bin/bash
script:
- git checkout -B main
- cd deployment
# Image auto update
- /usr/local/kclvm/bin/kcl -d -O config.containers.flask_demo.image="$CI_REGISTRY_IMAGE:$CI_COMMIT_SHORT_SHA"
- git commit -am '[skip ci] image update to $CI_REGISTRY_IMAGE:$CI_COMMIT_SHORT_SHA'
- git push origin main
only:
- main
```

We need the workflow in the source code repository to automatically trigger the workflow in the deployment manifest repository. At this point, we need to config `Settings -> CI/CD -> Variables` including `CI_REGISTRY`, `CI_REGISTRY_IMAGE`, `CI_REGISTRY_USER`, `CI_REGISTRY_PASSWORD`, `CI_USERNAME` and `CI_PASSWORD` and update application code to trigger automation build and deploy.

![](/img/docs/user_docs/guides/ci-integration/gitlab-ci-variables.jpg)

### 2. Commit the Application Code

After submitting in the `flask-demo` repository, Gitlab will automatically build a container image and push it to the Docker hub. It will also then trigger the Action of the `flask-demo-kcl-manifest` repository and modify the image value in the deployment manifest repository through [KCL Automation API](/docs/user_docs/guides/automation). Now let's create a submission in the `flask-demo` repository, and we can see that the code submission triggers the Gitlab CI process for the application repository `Build -> Pipelines` page.

### 3. Configuration Automatic Update

After the Gitlab CI process in the application repository is completed, an automatic update configuration CI will be triggered in the repository where the KCL configuration is stored and submitted to the main branch of the `flask-demo` repository.

+ We can obtain the deployment manifest source code for compilation and validation

```shell
git checkout main && git pull && cd deploy && kcl
```

The output YAML is

```yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: flask_demo
labels:
app: flask_demo
spec:
replicas: 1
selector:
matchLabels:
app: flask_demo
template:
metadata:
labels:
app: flask_demo
spec:
containers:
- name: flask_demo
image: "kcllang/flask_demo:6428cff4309afc8c1c40ad180bb9cfd82546be3e"
ports:
- protocol: TCP
containerPort: 5000
---
apiVersion: v1
kind: Service
metadata:
name: flask_demo
labels:
app: flask_demo
spec:
type: NodePort
selector:
app: flask_demo
ports:
- port: 5000
protocol: TCP
targetPort: 5000
```

From the above configuration, it can be seen that the image of the resource is indeed automatically updated to the newly constructed image value. In addition, we can also use the **Argo CD KCL plugin** to automatically synchronize data from the Git repository and deploy the application to the Kubernetes cluster.

## Summary

By integrating KCL and Gitlab CI, we can integrate the container build and delivery workflow by automatically updating the image values in the configuration, in order to achieve end-to-end application development process and improve R&D deployment efficiency.