[Enhancement] Clean up image space

[thyrlian]

Description

Some spaces in the image are wasted, should be considered to free up.

Steps

Tool used: dive

dive thyrlian/android-sdk:7.1

Output

│ Image Details │

Image name: thyrlian/android-sdk:7.1
Total Image size: 1.3 GB
Potential wasted space: 7.2 MB
Image efficiency score: 99 %

Count   Total Space  Path
    3        2.2 MB  /var/cache/debconf/templates.dat
    2        1.4 MB  /var/cache/debconf/templates.dat-old
    3        693 kB  /var/log/dpkg.log
    3        667 kB  /var/lib/dpkg/status
    2        579 kB  /var/lib/dpkg/status-old
    2        530 kB  /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_focal_InRelease
    2        228 kB  /var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_focal-security_InRelease
    2        228 kB  /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_focal-updates_InRelease
    2        201 kB  /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_focal-backports_InRelease
    2        133 kB  /var/log/apt/term.log
    3         73 kB  /var/log/apt/history.log
    2         59 kB  /var/log/lastlog
    3         53 kB  /etc/ld.so.cache
    3         45 kB  /var/cache/debconf/config.dat
    3         42 kB  /var/cache/ldconfig/aux-cache
    2         40 kB  /var/cache/debconf/config.dat-old
    3         35 kB  /var/log/alternatives.log
    3         30 kB  /var/log/apt/eipp.log.xz
    3         23 kB  /var/lib/apt/extended_states
    2        6.5 kB  /var/log/faillog
    2        3.5 kB  /opt/license_accepter.sh
    2        1.9 kB  /etc/passwd
    2        1.0 kB  /etc/shadow
    2         903 B  /etc/group
    2         756 B  /etc/gshadow
    2         661 B  /var/lib/dpkg/triggers/File
    2         539 B  /root/.wget-hsts
    2          55 B  /var/lib/ucf/hashfile
    2          38 B  /var/lib/ucf/registry
    2           0 B  /tmp
    2           0 B  /var/lib/apt/lists/lock
    2           0 B  /var/lib/apt/lists/auxfiles
    3           0 B  /var/lib/dpkg/lock-frontend
    3           0 B  /var/lib/dpkg/lock
    2           0 B  /var/lib/dpkg/triggers/Unincorp
    3           0 B  /var/lib/dpkg/updates
    2           0 B  /var/lib/apt/lists/partial
    3           0 B  /var/cache/debconf/passwords.dat
    2           0 B  /etc/.pwd.lock
    3           0 B  /var/cache/apt/archives/partial
    3           0 B  /var/cache/apt/archives/lock
    3           0 B  /var/lib/dpkg/triggers/Lock

[thyrlian]

As the potential wasted space is only 7.2 MB, and the image efficiency score is quite well: 99 %, I decide to not take any action (now).

But in the report, /opt/license_accepter.sh is a false alarm.