Step 5: Set Up a Function Update Pipeline

The pipeline allows you to release and update the helloworld function code in the functions repository to FunctionGraph.

Choose Build & CloudArtifact > CloudBuild, and click Create Task.
Select functions for Source Code Repository and Blank Template for the template.
Add these three actions: Run Shell Commands, Upload Files to OBS, and Upload Deployment Package to CloudRelease.
1. Configure the Run Shell Commands action.
```
# Build a function deployment package.
cd helloworld
zip helloworld_deploy.zip cam.yaml
# Build a function code package.
cd code
zip -rp helloworld.zip *
```
  Figure 1 Run Shell Commands
1. Configure the Upload Files to OBS action.
  Figure 2 Upload Files to OBS
  - Action Name: Enter Upload Function Package to OBS.
  - Build Directory: Enter helloworld/code/helloworld.zip.
  - Bucket Name: Specify a private bucket to store the function code ZIP package.
  - OBS Directory: Enter function.
2. Configure the Upload Deployment Package to CloudRelease action.
  Figure 3 Upload Deployment Package to CloudRelease
  - Action Name: Enter Upload Deployment Package to CloudRelease.
  - Package Location: Enter helloworld/helloworld_deploy.zip.
  - Version: Enter ${releaseVersion}.
On the Parameters tab page, add releaseVersion and enable Runtime Settings.
Figure 4 Setting parameters
On the Basic Information tab page, change the task name to pipeline-update-function-deploy and click Save.

Choose Build & CloudArtifact > CloudDeploy, and click Create Task.
Select Blank Template and click Next.
Add the actions Select Deployment Source and Run Shell Commands.
Figure 5 Adding deployment actions
1. Configure the Select Deployment Source action.
  Figure 6 Setting action name to "Download Function Deployment Package to Deployment Host"
  - Action Name: Enter Download Function Deployment Package to Deployment Host.
  - Host Group: Select deploy-function.
  - Software package: Select /functions-helloworld-build/${releaseVersion}/helloworld_deploy.zip.
  - Download Path: Enter /home/function/deploy.
2. Configure the Run Shell Commands action.
  Figure 7 Setting action name to "Deploy Function"
  - Action Name: Enter Deploy Function.
  - Host Group: Select deploy-function.
  - Shell Commands:
```
cd /home/function/deploy
unzip -o helloworld_deploy.zip -d helloworld_deploy
python3 deploy.py helloworld_deploy "${key}"
```
Add two parameters.
- releaseVersion: Use the default value 1.0.0 and enable Runtime Settings.
- key: Enter a key and enable Private Parameter.
  Figure 8 Setting parameters
On the Basic Information tab page, change the task name to update-function-deploy and click Save.

Choose Build & CloudArtifact > CloudPipeline, and click Create Pipeline.
Select functions for Source Code Repository and Blank Template for the template.
Configure Build and Check.
1. Add a build task, and select the functions-helloworld-build task.
  Figure 9 Adding a task
2. Set releaseVersion as a pipeline parameter.
  Figure 10 Setting releaseVersion
3. Click Save.
Configure a deployment task.
1. Add a stage named Deploy after Build_and_Check, set Task Execution to Serial, and click Save.
  Figure 11 Configuring the stage
2. Click Add Task to add a deployment task named DeployhelloworldScript, and select the update-function-deploy task.
  Figure 12 Clicking Add Task
  
  Figure 13 Adding a task
3. Set releaseVersion as a pipeline parameter.
  Figure 14 Setting releaseVersion
4. Click Save.
On the Basic Information tab page, change the pipeline task name to pipeline-update-function-helloworld and click Save.
Execute the pipeline.
Set the runtime parameter releaseVersion to 1.0.0 and click Execute.