restart on fail, clear old backups

Dockerfile

@@ -16,7 +16,7 @@ RUN export DEBIAN_FRONTEND=noninteractive; \
       cron \
       postgresql postgresql-contrib \
    && curl -L \
-      https://github.com/miniflux/miniflux/releases/download/2.0.21/miniflux_2.0.21_amd64.deb \
+      https://github.com/miniflux/miniflux/releases/download/2.0.25/miniflux_2.0.25_amd64.deb \
       > /miniflux.deb \
    && dpkg -i /miniflux.deb \
    && mkdir -p /mnt/save
@@ -56,5 +56,5 @@ ENTRYPOINT \
    && bash /restore.sh \
    && miniflux -migrate \
    && miniflux -create-admin \
-   && miniflux \
+   && (while true; do miniflux; sleep 1; done) \
    & exec /pauser

backup.sh

@@ -1,12 +1,12 @@
 b=$(date +%Y%m%d%H%M%S)
 mkdir -p /mnt/save/$b
 pg_dump $DATABASE_URL --clean > /mnt/save/$b/pg.dump \
-   || ( 
+   || (
       rm -rf /mnt/save/$b
       echo "backup failed; deleting $b"
       exit 1
    )
-if du -sh /mnt/save/$b | grep -Ei "^[ ]*(4|2.).0K"; then 
+if du -sh /mnt/save/$b | grep -Ei "^[ ]*(4|2.).0K"; then
    rm -rf /mnt/save/$b
    echo rm empty backup $b
 fi

restore.sh

@@ -1,4 +1,9 @@
-for b in $(find /mnt/save -not -path '*/\.*' -type f | sort -r); do
+all_backups=($(find /mnt/save -not -path '*/\.*' -type f | sort -r))
+for ((i=${#all_backups[@]}-1; i>50; i--)); do
+   echo rm old backpu ${all_backups[i]} >&2
+done
+
+for b in "${all_backups[@]}"; do
    if [ -n "$b" ]; then
       du -sh "$b"
       if ! du -sh "$b" | grep -Ei "^[ \t]*[0-9][0-9]*[0-9]?(.0)?[mg]"; then