未能在aws lambda中为node alpine创建docker

Question

我在尝试为aws lambda创建docker映像时遇到以下错误基于node-js类型脚本图像(NestJs(当我使用带有处理程序函数的示例app.js文件时，也发生了此错误

internal/modules/cjs/loader.js:905
throw err;
^
Error: Cannot find module '/function/main.handler'
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:902:15)
at Function.Module._load (internal/modules/cjs/loader.js:746:27)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)
at internal/main/run_main_module.js:17:47 {
code: 'MODULE_NOT_FOUND',
requireStack: []

我的运行命令：

docker run --rm -p 9001:8080 lambda-test:latest

ARG FUNCTION_DIR="/function"
#*****************************************************************************
#  Builder Stage
#****************************************************************************/
FROM node:14-alpine AS builder
# Include global arg in this stage of the build
ARG FUNCTION_DIR
# The working directory is where "npm install" created the node_modules folder.
WORKDIR ${FUNCTION_DIR}
# Install aws-lambda-cpp build dependencies. aws-lambda-cpp is used by aws-lambda-ric which is a
# node-gyp compiled dependency. Find it in package.json.
# See the Node.js example at https://github.com/aws/aws-lambda-nodejs-runtime-interface-client
RUN apk add --no-cache 
libstdc++ 
build-base 
libtool 
autoconf 
automake 
libexecinfo-dev 
make 
cmake 
libcurl 
python3

RUN mkdir -p ${FUNCTION_DIR}
COPY . ${FUNCTION_DIR}
# Install the AWS Lambda Runtime Interface Client (RIC) that is only required within this Docker container (not in package.json on development machine).
# It helps AWS to run the Lambda function code that autoiXpert provides.
RUN npm install
RUN npm install aws-lambda-ric
RUN npx tsc
RUN npm prune --production
#*****************************************************************************
#  Production Stage
#****************************************************************************/
FROM node:14-alpine
# Include global arg in this stage of the build
ARG FUNCTION_DIR
# The working directory is where "npm install" created the node_modules folder.
WORKDIR ${FUNCTION_DIR}
# If this directory does not exist, lambda shows an annoying warning.
RUN mkdir -p /opt/extensions
COPY --from=builder ${FUNCTION_DIR}/node_modules ${FUNCTION_DIR}/node_modules
COPY --from=builder ${FUNCTION_DIR}/package*.json ${FUNCTION_DIR}
COPY --from=builder ${FUNCTION_DIR}/dist/src* ${FUNCTION_DIR}
CMD [ "main.handler" ]

正确定位的所有文件

当我使用aws的基本图像时，它的效果很好，但图像大小大约为800mb与高山是300mb

Answer 1

您在Dockerfile的最后阶段错过了ENTRYPOINT ["/usr/local/bin/npx", "aws-lambda-ric"]。

图像node:14-alpine的默认ENTRY_POINT是

#!/bin/sh
set -e
if [ "${1#-}" != "${1}" ] || [ -z "$(command -v "${1}")" ]; then
set -- node "$@"
fi
exec "$@"

因此CMD [ "main.handler" ]等价于node main.handler，从而导致Error: Cannot find module '/function/main.handler'。

要解决此问题，您应该使用将入口点更改为aws-lambda-ric

ENTRYPOINT ["/usr/local/bin/npx", "aws-lambda-ric"]