Switch to alpine in sync container

sync/Dockerfile

@@ -1,8 +1,8 @@
-FROM gradle:8-jdk11-jammy
+FROM gradle:8-jdk11-alpine
 
 WORKDIR /workdir
 
-RUN apt-get update && apt-get install -y python3-pip
+RUN python3 -m ensurepip
 
 COPY requirements.txt .
 RUN python3 -m pip install -r requirements.txt
@@ -10,4 +10,4 @@ RUN python3 -m pip install -r requirements.txt
 COPY resolve-deps.sh .
 COPY generate-gradle.py .
 
-CMD [ "./resolve-deps.sh" ]
+CMD [ "/bin/sh", "./resolve-deps.sh" ]

sync/resolve-deps.sh

@@ -1,8 +1,8 @@
-#!/bin/bash
+#!/bin/sh
 
 is_reposilite_up ()
 {
-    curl -s -o /dev/null repo:80
+    nc repo 80 > /dev/null
     return $?
 }
 
@@ -30,7 +30,7 @@ if [[ ! -f /package-list.txt ]]; then
 fi
 
 echo "Resolving packages and generating gradle config"
-if ! ./generate-gradle.py --repo="repo:80" /package-list.txt; then
+if ! python3 ./generate-gradle.py --repo="repo:80" /package-list.txt; then
     echo "Gradle generation failed"
     exit 255
 fi