Improvements docker image building

infrastructure/backup/image/Dockerfile

@@ -1,4 +1,4 @@
-FROM domaindrivenarchitecture/dda-backup:1.0.10
+FROM domaindrivenarchitecture/dda-backup:latest
 
 # Prepare Entrypoint Script
 ADD resources /tmp

infrastructure/backup/image/resources/install.sh

@@ -1,9 +1,10 @@
 #!/bin/bash
 
-set -eux pipefail
-
-apt-get update > /dev/null;
+set -exo pipefail
 
+function main()
+{
+    {
         install -m 0700 /tmp/entrypoint.sh /
         install -m 0700 /tmp/entrypoint-start-and-wait.sh /
 
@@ -11,3 +12,10 @@ install -m 0700 /tmp/init.sh /usr/local/bin/
         install -m 0700 /tmp/backup.sh /usr/local/bin/
         install -m 0700 /tmp/restore.sh /usr/local/bin/
         install -m 0700 /tmp/restic-snapshots.sh /usr/local/bin/
+        
+        cleanupDocker
+    } > /dev/null
+}
+
+source /tmp/install_functions_debian.sh
+DEBIAN_FRONTEND=noninteractive DEBCONF_NOWARNINGS=yes main

infrastructure/backup/test/Dockerfile

@@ -1,11 +0,0 @@
-FROM c4k-taiga-backup
-
-RUN apt update
-RUN apt -yqq --no-install-recommends --yes install curl default-jre-headless
-
-RUN curl -L -o /tmp/serverspec.jar \
-    https://github.com/DomainDrivenArchitecture/dda-serverspec-crate/releases/download/2.0.0/dda-serverspec-standalone.jar
-
-COPY serverspec.edn /tmp/serverspec.edn
-
-RUN java -jar /tmp/serverspec.jar /tmp/serverspec.edn -v