Import fails when using node alpine docker image

I’m using the docker image node:alpine3.11 to build and deploy my application.

internal/modules/cjs/loader.js:1197
 return process.dlopen(module, path.toNamespacedPath(filename));

Error: Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /usr/app/node_modules/sodium-native/prebuilds/linux-x64/libsodium.so.23)
 at Object.Module._extensions..node (internal/modules/cjs/loader.js:1197:18)
 at Module.load (internal/modules/cjs/loader.js:996:32)
 at Function.Module._load (internal/modules/cjs/loader.js:896:14)
 at Module.require (internal/modules/cjs/loader.js:1036:19)
 at require (internal/modules/cjs/helpers.js:72:18)
 at load (/usr/app/node_modules/node-gyp-build/index.js:21:10)
 at Object.<anonymous> (/usr/app/node_modules/sodium-native/index.js:1:39)
 at Module._compile (internal/modules/cjs/loader.js:1147:30)
 at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
 at Module.load (internal/modules/cjs/loader.js:996:32)

[marcbachmann]

This might be helpful to others. I’m using the following Dockerfile instructions using alpine linux. The environment variable helps in finding the prebuilt version:

FROM node:15-alpine
RUN apk add --no-cache --virtual build-deps python alpine-sdk autoconf libtool automake && \
  mkdir -p /prebuilds && cd /prebuilds && npm init -y && npm install sodium-native@3.1.1 && \
  apk del build-deps
ENV SODIUM_NATIVE_PREBUILD=/prebuilds/node_modules/sodium-native/

and a new version with node 16 (includes python3 instead of python2):

FROM node:16-alpine
RUN apk add --no-cache --virtual build-deps python3 alpine-sdk autoconf libtool automake && \
  mkdir -p /prebuilds && cd /prebuilds && npm init -y && npm install sodium-native@3.1.1 && \
  apk del build-deps
ENV SODIUM_NATIVE_PREBUILD=/prebuilds/node_modules/sodium-native/

[dyc3]

The node:alpine3.11 tag runs the latest version of node (13.13.0) on alpine 3.11