Switched to superchronic

Dockerfile

@@ -5,7 +5,6 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     xdg-user-dirs=0.17-2 \
     procps=2:3.3.17-5 \
     wget=1.21-1+deb11u1 \
-    cron \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*
 
@@ -14,6 +13,17 @@ RUN wget -q https://github.com/gorcon/rcon-cli/releases/download/v0.10.3/rcon-0.
     mv rcon-0.10.3-amd64_linux/rcon /usr/bin/rcon-cli && \
     rmdir /tmp/dumps
 
+# Latest releases available at https://github.com/aptible/supercronic/releases
+ENV SUPERCRONIC_URL=https://github.com/aptible/supercronic/releases/download/v0.2.29/supercronic-linux-amd64 \
+    SUPERCRONIC=supercronic-linux-amd64 \
+    SUPERCRONIC_SHA1SUM=cd48d45c4b10f3f0bfdd3a57d054cd05ac96812b
+
+RUN curl -fsSLO "$SUPERCRONIC_URL" \
+ && echo "${SUPERCRONIC_SHA1SUM}  ${SUPERCRONIC}" | sha1sum -c - \
+ && chmod +x "$SUPERCRONIC" \
+ && mv "$SUPERCRONIC" "/usr/local/bin/${SUPERCRONIC}" \
+ && ln -s "/usr/local/bin/${SUPERCRONIC}" /usr/local/bin/supercronic
+
 ENV PORT= \
     PUID=1000 \
     PGID=1000 \