Update to Alpine 3.17

Removes deprecated npm option, sets user to nbxyz
for tftpd, adds script for testing build

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.16
+FROM alpine:3.17
 
 # set version label
 ARG BUILD_DATE
@@ -44,7 +44,6 @@ RUN \
  tar xf \
  /tmp/webapp.tar.gz -C \
         /app/ --strip-components=1 && \
- npm config set unsafe-perm true && \
  npm install --prefix /app
 
 ENV TFTPD_OPTS=''

root/etc/supervisor.conf

@@ -23,6 +23,7 @@ priority = 3
 
 [program:in.tftpd]
 command=/usr/sbin/in.tftpd -Lvvv --user nbxyz --secure %(ENV_TFTPD_OPTS)s /config/menus
+user=nbxyz
 stdout_logfile=/config/tftpd.log
 redirect_stderr=true
 priority = 4

scripts/shell.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+echo Building local core environment image...
+docker build -t docker-netbootxyz .
+echo Entering docker-netbootxyz shell... type exit to leave container...
+docker run -v /var/run/docker.sock:/var/run/docker.sock -v $(pwd):/shell -t -i docker-netbootxyz /bin/bash