26 lines
685 B
Bash
26 lines
685 B
Bash
#!/bin/bash
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set -eo pipefail
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if [ "$MYSQL_RANDOM_ROOT_PASSWORD" ] && [ -z "$MYSQL_USER" ] && [ -z "$MYSQL_PASSWORD" ]; then
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# there's no way we can guess what the random MySQL password was
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echo >&2 'healthcheck error: cannot determine random root password (and MYSQL_USER and MYSQL_PASSWORD were not set)'
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exit 0
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fi
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host="$(hostname --ip-address || echo '127.0.0.1')"
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user="${MYSQL_USER:-root}"
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export MYSQL_PWD="${MYSQL_PASSWORD:-$MYSQL_ROOT_PASSWORD}"
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args=(
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# force mysql to not use the local "mysqld.sock" (test "external" connectibility)
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-h"$host"
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-u"$user"
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--silent
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)
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if select="$(echo 'SELECT 1' | mysql "${args[@]}")" && [ "$select" = '1' ]; then
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exit 0
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fi
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exit 1
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