Use a final stage instead that never gets uploaded to the container registry.

LinuxGeneralCompiler/Dockerfile

@@ -2,9 +2,6 @@ FROM git.zontreck.com/ariascreations/buildenvironments:appimage
 
 ENV PUB NAN
 ENV AGENT NAN
-ENV GRADLEPROP NAN
-ENV PRIVKEY NAN
-ENV PUBKEY NAN
 
 WORKDIR /
 RUN curl -sO https://ci.zontreck.com/jnlpJars/agent.jar

LinuxGeneralCompiler/FinalStage/Dockerfile

@@ -0,0 +1,14 @@
+FROM git.zontreck.com/ariascreations/buildenvironments:linux
+
+WORKDIR /root/.gradle
+ADD ./secret/gradle.properties ./gradle.properties
+
+WORKDIR /root/.ssh
+ADD ./secret/id_rsa ./id_rsa
+ADD ./secret/id_rsa.pub ./id_rsa.pub
+
+RUN chmod 0600 id_rsa
+
+WORKDIR /
+
+ENTRYPOINT [ "/bin/bash", "/entrypoint.sh" ]

LinuxGeneralCompiler/entrypoint.sh

@@ -2,12 +2,4 @@
 
 echo $PUB | dart pub token add https://git.zontreck.com/api/packages/AriasCreations/pub
 
-mkdir -pv ~/.gradle
-echo $GRADLEPROP | base64 -d > ~/.gradle/gradle.properties
-
-mkdir -pv ~/.ssh
-echo "$PRIVKEY" | base64 -d > ~/.ssh/id_rsa
-echo "$PUBKEY" | base64 -d > ~/.ssh/id_rsa.pub
-chmod 0600 ~/.ssh/id_rsa
-
 java -Dfile.encoding=UTF-8 -Dsun.jnu.encoding=UTF-8 -jar /agent.jar -url "https://ci.zontreck.com" -secret "$AGENT" -name "Linux" -workDir "/builder"

docker-compose.yml

@@ -2,7 +2,7 @@ version: "3"
 
 services:
   linuxbuilder:
-    image: git.zontreck.com/ariascreations/buildenvironments:linux
+    image: LinuxAgent
     container_name: linuxbuilder
     restart: unless-stopped
     env_file: .env

run.sh

@@ -3,20 +3,18 @@
 echo -ne "AGENT=" > .env
 cat "$AGENT" >> .env
 
-echo -ne "\nGRADLEPROP=" >> .env
-cat "$GRADLEPROP" | base64 >> .env
-
-echo -ne "\nPUB" >> .env
+echo -ne "\nPUB=" >> .env
 cat "$PUB" >> .env
 
-echo -ne "\nPRIVKEY=" >> .env
-cat "$PRIVKEY" | base64 >> .env
-
-echo -ne "\nPUBKEY=" >> .env
-cat "$PUBKEY" | base64 >> .env
-
-echo -ne"\nFSAGENT=" >> .env
+echo -ne "\nFSAGENT=" >> .env
 cat "$FSAGENT" >> .env
 
+mkdir -pv LinuxGeneralCompiler/FinalStage/secret
+cp "$PRIVKEY" LinuxGeneralCompiler/FinalStage/secret/id_rsa
+cp "$PUBKEY" LinuxGeneralCompiler/FinalStage/secret/id_rsa.pub
+cp "$GRADLEPROP" LinuxGeneralCompiler/FinalStage/secret/gradle.properties
+
+docker build -t LinuxAgent LinuxGeneralCompiler/FinalStage
+
 
 docker-compose up -d