error install on ubuntu 22.04 arm, my openvpn is installed by deb file.

[ghost]

=> ERROR [frontend-builder 3/3] RUN cd /app && npm install && npm run build 46.2s

[frontend-builder 3/3] RUN cd /app && npm install && npm run build:
#0 1.349 npm WARN old lockfile
#0 1.350 npm WARN old lockfile The package-lock.json file was created with an old version of npm,
#0 1.351 npm WARN old lockfile so supplemental metadata must be fetched from the registry.
#0 1.351 npm WARN old lockfile
#0 1.352 npm WARN old lockfile This is a one-time fix-up, please be patient...
#0 1.352 npm WARN old lockfile
#0 32.69 npm WARN deprecated [email protected]: Please upgrade to version 7 or higher. Older versions may use Math.random() in certain circumstances, which is known to be problematic. See https://v8.dev/blog/math-random for details.
#0 33.24 npm WARN deprecated [email protected]: this library is no longer supported
#0 33.87 npm WARN deprecated [email protected]: request has been deprecated, see request/request#3142
#0 34.43 npm WARN deprecated @npmcli/[email protected]: This functionality has been moved to @npmcli/fs
#0 35.51 npm WARN deprecated [email protected]: Formdata complete broken, incorrect build size
#0 36.36 npm WARN deprecated [email protected]: You can find the new Popper v2 at @popperjs/core, this package is dedicated to the legacy v1
#0 45.90 npm notice
#0 45.90 npm notice New major version of npm available! 8.19.2 -> 9.6.5
#0 45.90 npm notice Changelog: https://github.com/npm/cli/releases/tag/v9.6.5
#0 45.90 npm notice Run npm install -g [email protected] to update!
#0 45.90 npm notice
#0 45.90 npm ERR! code 1
#0 45.90 npm ERR! path /app/node_modules/node-sass
#0 45.91 npm ERR! command failed
#0 45.91 npm ERR! command sh -c -- node scripts/build.js
#0 45.91 npm ERR! Building: /usr/local/bin/node /app/node_modules/node-gyp/bin/node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
#0 45.91 npm ERR! gyp info it worked if it ends with ok
#0 45.91 npm ERR! gyp verb cli [
#0 45.91 npm ERR! gyp verb cli '/usr/local/bin/node',
#0 45.91 npm ERR! gyp verb cli '/app/node_modules/node-gyp/bin/node-gyp.js',
#0 45.91 npm ERR! gyp verb cli 'rebuild',
#0 45.91 npm ERR! gyp verb cli '--verbose',
#0 45.91 npm ERR! gyp verb cli '--libsass_ext=',
#0 45.91 npm ERR! gyp verb cli '--libsass_cflags=',
#0 45.91 npm ERR! gyp verb cli '--libsass_ldflags=',
#0 45.91 npm ERR! gyp verb cli '--libsass_library='
#0 45.91 npm ERR! gyp verb cli ]
#0 45.91 npm ERR! gyp info using [email protected]
#0 45.91 npm ERR! gyp info using [email protected] | linux | arm64
#0 45.91 npm ERR! gyp verb command rebuild []
#0 45.91 npm ERR! gyp verb command clean []
#0 45.91 npm ERR! gyp verb clean removing "build" directory
#0 45.91 npm ERR! gyp verb command configure []
#0 45.91 npm ERR! gyp verb find Python Python is not set from command line or npm configuration
#0 45.91 npm ERR! gyp verb find Python Python is not set from environment variable PYTHON
#0 45.91 npm ERR! gyp verb find Python checking if "python3" can be used
#0 45.91 npm ERR! gyp verb find Python - executing "python3" to get executable path
#0 45.91 npm ERR! gyp verb find Python - "python3" is not in PATH or produced an error
#0 45.91 npm ERR! gyp verb find Python checking if "python" can be used
#0 45.91 npm ERR! gyp verb find Python - executing "python" to get executable path
#0 45.91 npm ERR! gyp verb find Python - "python" is not in PATH or produced an error
#0 45.91 npm ERR! gyp ERR! find Python
#0 45.91 npm ERR! gyp ERR! find Python Python is not set from command line or npm configuration
#0 45.91 npm ERR! gyp ERR! find Python Python is not set from environment variable PYTHON
#0 45.91 npm ERR! gyp ERR! find Python checking if "python3" can be used
#0 45.91 npm ERR! gyp ERR! find Python - "python3" is not in PATH or produced an error
#0 45.91 npm ERR! gyp ERR! find Python checking if "python" can be used
#0 45.91 npm ERR! gyp ERR! find Python - "python" is not in PATH or produced an error
#0 45.91 npm ERR! gyp ERR! find Python
#0 45.91 npm ERR! gyp ERR! find Python **********************************************************
#0 45.91 npm ERR! gyp ERR! find Python You need to install the latest version of Python.
#0 45.91 npm ERR! gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
#0 45.91 npm ERR! gyp ERR! find Python you can try one of the following options:
#0 45.91 npm ERR! gyp ERR! find Python - Use the switch --python="/path/to/pythonexecutable"
#0 45.91 npm ERR! gyp ERR! find Python (accepted by both node-gyp and npm)
#0 45.91 npm ERR! gyp ERR! find Python - Set the environment variable PYTHON
#0 45.91 npm ERR! gyp ERR! find Python - Set the npm configuration variable python:
#0 45.91 npm ERR! gyp ERR! find Python npm config set python "/path/to/pythonexecutable"
#0 45.91 npm ERR! gyp ERR! find Python For more information consult the documentation at:
#0 45.91 npm ERR! gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
#0 45.91 npm ERR! gyp ERR! find Python **********************************************************
#0 45.91 npm ERR! gyp ERR! find Python
#0 45.91 npm ERR! gyp ERR! configure error
#0 45.91 npm ERR! gyp ERR! stack Error: Could not find any Python installation to use
#0 45.91 npm ERR! gyp ERR! stack at PythonFinder.fail (/app/node_modules/node-gyp/lib/find-python.js:330:47)
#0 45.91 npm ERR! gyp ERR! stack at PythonFinder.runChecks (/app/node_modules/node-gyp/lib/find-python.js:159:21)
#0 45.91 npm ERR! gyp ERR! stack at PythonFinder. (/app/node_modules/node-gyp/lib/find-python.js:202:16)
#0 45.91 npm ERR! gyp ERR! stack at PythonFinder.execFileCallback (/app/node_modules/node-gyp/lib/find-python.js:294:16)
#0 45.91 npm ERR! gyp ERR! stack at exithandler (node:child_process:410:5)
#0 45.91 npm ERR! gyp ERR! stack at ChildProcess.errorhandler (node:child_process:422:5)
#0 45.91 npm ERR! gyp ERR! stack at ChildProcess.emit (node:events:513:28)
#0 45.91 npm ERR! gyp ERR! stack at Process.ChildProcess._handle.onexit (node:internal/child_process:291:12)
#0 45.91 npm ERR! gyp ERR! stack at onErrorNT (node:internal/child_process:485:16)
#0 45.91 npm ERR! gyp ERR! stack at processTicksAndRejections (node:internal/process/task_queues:83:21)
#0 45.91 npm ERR! gyp ERR! System Linux 5.15.0-1033-oracle
#0 45.91 npm ERR! gyp ERR! command "/usr/local/bin/node" "/app/node_modules/node-gyp/bin/node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
#0 45.91 npm ERR! gyp ERR! cwd /app/node_modules/node-sass
#0 45.91 npm ERR! gyp ERR! node -v v16.18.1
#0 45.91 npm ERR! gyp ERR! node-gyp -v v8.4.1
#0 45.91 npm ERR! gyp ERR! not ok
#0 45.91 npm ERR! Build failed with error code: 1
#0 45.91
#0 45.91 npm ERR! A complete log of this run can be found in:
#0 45.91 npm ERR! /root/.npm/_logs/2023-04-29T00_30_19_260Z-debug-0.log

[harakka]

You can get it to build at least with the following changes. No clue if it actually works properly.

diff --git a/Dockerfile b/Dockerfile
index 42ff620..d60be0b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,17 +1,17 @@
 FROM node:16-alpine3.15 AS frontend-builder
 COPY frontend/ /app
-RUN cd /app && npm install && npm run build
+RUN apk add python3 make g++ && cd /app && npm install && npm run build

 FROM golang:1.17.3-buster AS backend-builder
 RUN go install github.com/gobuffalo/packr/v2/packr2@latest
 COPY --from=frontend-builder /app/static /app/frontend/static
 COPY . /app
-RUN cd /app && packr2 && env CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -tags netgo -ldflags '-linkmode external -extldflags -static -s -w' -o ovpn-admin && packr2 clean
+RUN cd /app && packr2 && env CGO_ENABLED=1 GOOS=linux GOARCH=arm64 go build -a -tags netgo -ldflags '-linkmode external -extldflags -static -s -w' -o ovpn-admin && packr2 clean

 FROM alpine:3.16
 WORKDIR /app
 COPY --from=backend-builder /app/ovpn-admin /app
 RUN apk add --update bash easy-rsa openssl openvpn coreutils  && \
     ln -s /usr/share/easy-rsa/easyrsa /usr/local/bin && \
-    wget https://github.com/pashcovich/openvpn-user/releases/download/v1.0.4/openvpn-user-linux-amd64.tar.gz -O - | tar xz -C /usr/local/bin && \
+    wget https://github.com/pashcovich/openvpn-user/releases/download/v1.0.4/openvpn-user-linux-arm64.tar.gz -O - | tar xz -C /usr/local/bin && \
     rm -rf /tmp/* /var/tmp/* /var/cache/apk/* /var/cache/distfiles/*