AWS 无服务器.yml 文件"A valid option to satisfy the declaration 'opt:stage' could not be found"错误

Question

尝试运行无服务器时出现以下警告。

无服务器警告---------------------------------------------

找不到满足声明"opt:stage"的有效选项。下面是我的serverless.yml文件

# Serverless Config
service: api-service
# Provider
provider:
name: aws
runtime: nodejs8.10
region: ${opt:region, 'ap-east-1'}
stage: ${opt:stage, 'dev'}
# Enviroment Varibles
environment:
STAGE: ${self:custom.myStage}
MONGO_DB_URI: ${file(./serverless.env.yml):${opt:stage}.MONGO_DB_URI}
LAMBDA_ONLINE: ${file(./serverless.env.yml):${opt:stage}.LAMBDA_ONLINE}

# Constants Varibles
custom:
# environments Variables used for convert string in upper case format
environments:
myStage: ${opt:stage, self:provider.stage}
stages:
- dev
- qa
- staging
- production
region:
dev: 'ap-east-1'
stage: 'ap-east-1'
production: 'ap-east-1'
# Function
functions:
testFunc:
handler: index.handler
description: ${opt:stage} API's
events:
- http:
method: any
path: /{proxy+}
cors:
origin: '*'
#package
package:
exclude:
- .env
- node_modules/aws-sdk/**
- node_modules/**

Answer 1

在testFunc的描述中，您使用的是${opt:stage}。如果直接使用它，则需要在运行deploy命令时传递--stage标志。

您应该在那里使用${self:provider.stage}，因为在那里您将计算阶段。

Answer 2

我建议您执行以下实现

provider:
name: aws
runtime: nodejs8.10
region: ${opt:region, self:custom.environments.region.${self:custom.environments.myStage}}
stage: ${opt:stage, self:custom.environments.myStage}
# Enviroment Varibles
environment:
STAGE: ${self:custom.myStage}
MONGO_DB_URI: ${file(./serverless.env.yml):${self:provider.stage}.MONGO_DB_URI}
LAMBDA_ONLINE: ${file(./serverless.env.yml):${self:provider.stage}.LAMBDA_ONLINE}

# Constants Varibles
custom:
# environments Variables used for convert string in upper case format
environments:
# set the default stage if not specified
myStage: dev
stages:
- dev
- qa
- staging
- production
region:
dev: 'ap-east-1'
stage: 'ap-east-1'
production: 'ap-east-1'

基本上，如果没有使用命令行指定stage和region，则使用默认值。否则将使用命令行一。