Each time a pipeline task is run, a new instance is allocated based on the base image. Serverless Application Center continuously maintains and updates images, and adds or updates the required build tools. When multiple versions of a build tool exist, Serverless Devs uses the latest version by default. However, some users may want to use an earlier version. Serverless Application Center provides the runtime-setup plug-in to specify the version of a build tool. This topic describes how to use a runtime-setup plug-in to initialize a runtime.
Use the runtime-setup plug-in
If you want to use a specific version of the build tool, you can use the runtime-setup plug-in to specify the version of the build tool before you use Serverless Devs.
Using the runtime-setup plugins in steps
In a pipeline template or a task template, you can use the runtime-setup plug-in by running steps in context. After the plug-in is executed, the build tool of the specified version is configured to the PATH environment variable in the container. The following sample code shows an example:
---
kind: PipelineTemplate
name: mytemplate-<% .git.branch %>
description: cached pipelinetemplate
spec:
context:
data:
envName: test
deployFile: s.yaml
tasks:
# Build and deploy
- name: build-and-deploy
context:
data:
enable: true
steps:
# Pull code.
- plugin: "@serverless-cd/checkout"
# Initialize Serverless Devs.
- plugin: "@serverless-cd/s-setup"
# Specify the version of the build tool.
- plugin: "@serverless-cd/runtime-setup"
inputs:
runtime:
- nodejs14
# - nodejs16
# - python3.9
# - python
# Use other plug-ins or scripts to perform actions.
# - run: make build && make deploy
# - plugin: "@serverless-cd/others"
taskTemplate: serverless-runner-task
---The following table lists the runtimes supported by the runtime-setup plug-in.
nodejs12
nodejs14
nodejs16
nodejs18
nodejs20
java8
java11
java17
python2.7
python3.6
python3.7
python3.9
python3.10
go1.18
go1.19
go1.20
go1.21
Among them, nodejs14, java8, python3.9, and go1.18 are the default versions of each programming language.