57 lines
995 B
Bash
57 lines
995 B
Bash
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#!/usr/bin/env bash
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set -eux
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clean_cloud_init() {
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cloud-init clean --logs --machine-id --seed --configs all
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rm -rf /run/cloud-init/*
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rm -rf /var/lib/cloud/*
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}
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clean_apt() {
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export DEBIAN_FRONTEND=noninteractive
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apt-get -y autopurge
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apt-get -y clean
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rm -rf /var/lib/apt/lists/*
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}
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clean_ssh_keys() {
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rm -f /etc/ssh/ssh_host_*_key /etc/ssh/ssh_host_*_key.pub
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}
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clean_logs() {
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journalctl --flush
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journalctl --rotate --vacuum-time=0
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find /var/log -type f -exec truncate --size 0 {} \; # truncate system logs
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find /var/log -type f -name '*.[1-9]' -delete # remove archived logs
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find /var/log -type f -name '*.gz' -delete # remove compressed archived logs
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}
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clean_root() {
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unset HISTFILE
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rm -rf /root/.cache
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rm -rf /root/.ssh
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rm -f /root/.bash_history
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rm -f /root/.lesshst
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rm -f /root/.viminfo
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}
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flush_disk() {
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dd if=/dev/zero of=/zero bs=4M || true
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sync
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rm -f /zero
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}
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clean_cloud_init
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clean_apt
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clean_ssh_keys
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clean_logs
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clean_root
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flush_disk
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