feat: sentry for arm

Signed-off-by: 小草林(田梓萱) <xcl@xuegao-tzx.top>

cron/Dockerfile

@@ -0,0 +1,9 @@
+ARG BASE_IMAGE
+FROM ${BASE_IMAGE}
+USER 0
+RUN if [ -n "${http_proxy}" ]; then echo "Acquire::http::proxy \"${http_proxy}\";" >> /etc/apt/apt.conf; fi
+RUN if [ -n "${https_proxy}" ]; then echo "Acquire::https::proxy \"${https_proxy}\";" >> /etc/apt/apt.conf; fi
+RUN apt-get update && apt-get install -y --no-install-recommends cron && \
+    rm -r /var/lib/apt/lists/*
+COPY entrypoint.sh /entrypoint.sh
+ENTRYPOINT ["/entrypoint.sh"]

cron/entrypoint.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+if [ "$(ls -A /usr/local/share/ca-certificates/)" ]; then
+  update-ca-certificates
+fi
+
+# Prior art:
+# - https://github.com/renskiy/cron-docker-image/blob/5600db37acf841c6d7a8b4f3866741bada5b4622/debian/start-cron#L34-L36
+# - https://blog.knoldus.com/running-a-cron-job-in-docker-container/
+
+declare -p | grep -Ev 'BASHOPTS|BASH_VERSINFO|EUID|PPID|SHELLOPTS|UID' >/container.env
+
+{ for cron_job in "$@"; do echo -e "SHELL=/bin/bash
+BASH_ENV=/container.env
+${cron_job} > /proc/1/fd/1 2>/proc/1/fd/2"; done; } |
+  sed --regexp-extended 's/\\(.)/\1/g' |
+  crontab -
+crontab -l
+exec cron -f -l -L 15