try pulling images in a loop

scripts/installer.sh

@@ -103,14 +103,14 @@ images=$(node -e "var i = require('${box_src_tmp_dir}/src/infra_version.js'); co
 
 log "\tPulling docker images: ${images}"
 for image in ${images}; do
-    if ! docker pull "${image}"; then           # this pulls the image using the sha256
+    while ! docker pull "${image}"; then           # this pulls the image using the sha256
         log "Could not pull ${image}"
-        exit 5
-    fi
-    if ! docker pull "${image%@sha256:*}"; then  # this will tag the image for readability
+        sleep 5
+    done
+    while ! docker pull "${image%@sha256:*}"; then  # this will tag the image for readability
         log "Could not pull ${image%@sha256:*}"
-        exit 6
-   fi
+        sleep 5
+   done
 done
 
 log "update cloudron-syslog"