Use 'ubuntu:jammy' as base image

Dockerfile

@@ -1,4 +1,5 @@
-FROM busybox:glibc
+FROM ubuntu:jammy
+RUN apt-get update && apt-get install -y curl unzip
 RUN mkdir /dist && mkdir -p /var/tmp
 COPY download.sh /dist/download.sh
 COPY entrypoint.sh /dist/entrypoint.sh

download.sh

@@ -7,7 +7,7 @@ VERSION="$1"
 if [ -z "$VERSION" ]; then VERSION="${DEFAULT_VERSION:-1.0.0}"; fi
 
 FILE="/dist/into-${VERSION}.zip"
-URL="https://github.com/into-docker/into-docker/releases/download/v${VERSION}/into-${VERSION}-linux-amd64-static.zip"
-wget -O "$FILE" "$URL"
+URL="https://github.com/into-docker/into-docker/releases/download/v${VERSION}/into-${VERSION}-linux-amd64.zip"
+curl -L "$URL" > "$FILE"
 
 echo "$FILE"

entrypoint.sh

@@ -1,4 +1,4 @@
-#!/bin/sh -l
+#!/bin/bash -l
 
 set -eu
 
@@ -23,6 +23,7 @@ function opt() {
 echo "--- Downloading and extracting CLI tool ..."
 ZIP=$(/dist/download.sh "$VERSION")
 unzip -d /dist "$ZIP"
+ls /dist
 chmod +x /dist/into
 echo