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https://github.com/szepeviktor/debian-normalized
My very first normalized Debian Docker image
https://github.com/szepeviktor/debian-normalized
debian debian-linux docker docker-compose docker-container docker-image
Last synced: 25 days ago
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My very first normalized Debian Docker image
- Host: GitHub
- URL: https://github.com/szepeviktor/debian-normalized
- Owner: szepeviktor
- License: unlicense
- Created: 2023-01-03T02:05:35.000Z (almost 2 years ago)
- Default Branch: master
- Last Pushed: 2023-01-15T10:25:56.000Z (almost 2 years ago)
- Last Synced: 2024-09-30T02:24:38.076Z (about 1 month ago)
- Topics: debian, debian-linux, docker, docker-compose, docker-container, docker-image
- Language: Shell
- Homepage:
- Size: 12.7 KB
- Stars: 2
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# Preparing my very first normalized Debian Docker image
🚧 This is thinking and experimenting. Please contribute and help me make decisions! 🚧
So many Debian images are so complex and far away from safety and security of `debootstrap`-generated files.
1. Created with `debootstrap` command - So clean 🤩 so lovely 🤩
2. Normalized - even Debian base system has problems
3. All features from my [`debian-setup.sh`](https://github.com/szepeviktor/debian-server-tools/blob/master/debian-setup/debian-setup.sh) in an image
- Official Debian images: https://github.com/debuerreotype/debuerreotype
- `apt-get install --no-install-recommends --no-install-suggests`
- Keep no data in the container!
- Meta data https://github.com/opencontainers/image-spec/blob/main/annotations.md#pre-defined-annotation-keys
### Parts of the base image
```
+Docker daemon logs: /var/log/syslog
?debconf configuration?
+image normalization apt-mark auto, blacklist: init (sysv, systemd) Docker logging
-cron in host/container?
+queue in container
-mail SMTP & disable mail() or msmtp-mta
-chrony from host
-haveged from host
-irqbalance from host
?monit ?
+cli tools from another image
-delete unnecessary files
```
### Inspect image
- List package sizes `dpkg-query --showformat='${Installed-size}\t${Package}\n' --show | sort --numeric-sort`
- Show layers on CLI: `docker image inspect`, `docker hisrtory`, `dive`
### Apps
configuration, data files, logs
```
+Apache 2.4 with HTTP/2 and event MPM
+PHP-FPM 7.4
+Redis in-memory cache
+MariaDB 10 or Percona Server 5.7
+WordPress
+Laravel
```
### Delete unnecessary files
```bash
apt-get clean
rm -r /var/lib/apt/lists/*
rm -r /usr/share/locale/[a-z][a-z]*
rm -r /usr/share/man/[a-z][a-z]*
rm /var/log/dpkg.log /var/log/bootstrap.log /var/log/alternatives.log /var/cache/ldconfig/aux-cache
```