docker-ubuntumirror/README.markdown

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# sneak/ubuntumirror
Docker container for syncing bionic ubuntu LTS mirrors
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to reduce network traffic and speed up build times.
Then even your builds (where you can't specify links) will go fast.
# Levers
* `MIRROR_ARCHITECTURES`
* default `amd64`.
* You may want `i386,amd64`.
* `MIRROR_CATEGORIES`
* default `main,universe`.
* You may want `main,universe,restricted,multiverse`. Will use lots of
disk.
* `UBUNTU_MIRROR_PROJECTS`
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* default `xenial,xenial-updates,xenial-security,xenial-backports,bionic,bionic-updates,bionic-security,bionic-backports`.
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* `UBUNTU_MIRROR_SOURCE`
* default `archive.ubuntu.com`.
* You may want `xx.archive.ubuntu.com` (where `xx` is your country
code).
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* `MIRROR_INTERVAL_SECONDS` - mirror sync interval
* default `43200` (12h)
* You may want `10800` (3h)
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# Example dnsmasq setup
```
apt update && apt -y install dnsmasq
echo address=/mirrors.ubuntu.com/172.17.0.1 > /etc/dnsmasq.d/ubuntu-mirror-local
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```
Then, just add `--dns 172.17.0.1` to your /etc/default/docker opts
and bounce the docker daemon. Future containers will talk to your local
mirror.