add build image mysql del

build-image/mysql_del/Dockerfile

@@ -0,0 +1,8 @@
+FROM mysql:8.0.33-debian
+
+LABEL MAINTAINER='beaconfire'
+
+ENV HOST="" PORT="" MYSQL_USER="" MYSQL_PASSWORD="" REMAIN_DAYS=""
+COPY entrypoint.sh /usr/local/bin
+
+CMD [ "/usr/local/bin/entrypoint.sh" ]

build-image/mysql_del/entrypoint.sh

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+#!/bin/bash
+
+echo -ne "[client]\nhost=${HOST}\nport=${PORT}\nuser=${MYSQL_USER}\npassword=${MYSQL_PASSWORD}\n" > /etc/my.cnf
+
+create_time=$(mysql --defaults-extra-file=/etc/my.cnf  -e "SELECT NOW() - INTERVAL '$REMAIN_DAYS' DAY"|egrep '[0-9]{4}')
+if [ -z "$create_time" ]; then
+  echo "Failed to retrieve create_time. Exiting."
+  exit 1
+fi
+
+echo "Deleting records older than: $create_time"
+mysql --defaults-extra-file=/etc/my.cnf -e "delete * from question.code_run where create_time <'${create_time}'"