restored regression + updated docker compose

Signed-off-by: Surax98 <giacomo.surace@gmail.com>

Author: Surax98

README.md

@@ -40,6 +40,15 @@ Just run:
 cd docker && docker compose up -d
 ```
 
+This way, a docker container with a full SLURM environment will be started. You can find the used SLURM configuration
+in /docker/SlurmConfig.yaml. If you want to update the config after you already started it once, run:
+
+```bash
+docker compose up -d --build --force-recreate
+```
+
+So, the old container will be deleted, the image rebuilt and a new container with the updated config will be deployed.
+
 ### :hammer: Building binaries
 
 It is of course possible to use binaries as a standalone application. Just run

docker/Dockerfile

@@ -14,21 +14,21 @@ FROM ubuntu:22.04
 ENV TIMEZONE=America/New_York
 
 # Run system updates
-RUN apt update && apt -y upgrade
+RUN apt-get update && apt-get -y upgrade
 
 # Set time zone
 RUN ln -sn /usr/share/zoneinfo/${TIMEZONE} /etc/localtime \
     && echo ${TIMEZONE} > /etc/timezone \
-    && apt -y install tzdata
+    && apt-get -y install tzdata
 
 # Set locale
-RUN apt -y install locales \
+RUN apt-get -y install locales \
     && locale-gen en_US.UTF-8 \
     && update-locale LANG=en_US.UTF-8 LC_MESSAGES=POSIX
 
 # Install system packages
 RUN DEBIAN_FRONTEND=noninteractive \
-    apt -y install munge \
+    apt-get -y install munge \
                    slurm-wlm
 
 # Slurm configuration
@@ -48,9 +48,9 @@ ENV SLURMCONFIGPATH=/root/SlurmConfig.yaml
 
 COPY docker/SlurmConfig.yaml .
 
-RUN apt update && apt install -y software-properties-common \
+RUN apt-get update && apt-get install -y software-properties-common \
  && add-apt-repository -y ppa:apptainer/ppa \
- && apt install -y apptainer
+ && apt-get install -y apptainer
 
 RUN mkdir -p /cvmfs/grid.cern.ch/etc/grid-security
 

pkg/slurm/aux.go

@@ -290,6 +290,7 @@ func produceSLURMScript(
 	commands []SingularityCommand,
 ) (string, error) {
 	log.G(Ctx).Info("-- Creating file for the Slurm script")
+	prefix = ""
 	err := os.MkdirAll(path, os.ModePerm)
 	if err != nil {
 		log.G(Ctx).Error(err)