remove apt dependency

Dockerfile

@@ -3,7 +3,7 @@ from ubuntu:bionic as install
 # Install sudo and make, git since built-in is skipped
 RUN echo 'debconf debconf/frontend select Noninteractive' | debconf-set-selections
 RUN apt-get -qqy update \
-    && apt-get -qqy install sudo git make
+    && apt-get -qqy install curl git make software-properties-common sudo
 
 # Create user with sudo priviledge
 ARG USER="test-user"

install.sh

@@ -23,7 +23,6 @@ fi
 touch "$install_lock_file"
 
 # Install all scripts by default
-
 if [ -z "$TARGET" ]; then
     export TARGET="all"
 fi
@@ -31,7 +30,7 @@ fi
 if [ "$TARGET" == "all" ]; then
     scripts=($install_dir/*.sh)
 else
-    scripts=($install_dir/*-{apt,bash,$TARGET}.sh)
+    scripts=($install_dir/*-{bash,$TARGET}.sh)
 fi
 for script in "${scripts[@]}"; do