docker-ubuntumirror/README.markdown

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# sneak/ubuntumirror
Docker container for syncing trusty and xenial ubuntu LTS mirrors
to reduce network traffic and speed up build times.
I recommend deploying this with a `--dns 172.17.0.1` in your
`/etc/default/docker` and dnsmasq bound to 172.17.0.1:53 to rewrite
`archive.ubuntu.com` to `172.17.0.1` (which this image will be listening and
serving on).
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`
* default `xenial,xenial-updates,xenial-security,xenial-backports`.
* You may want `xenial,xenial-updates,xenial-security,xenial-backports,trusty,trusty-updates,trusty-security,trusty-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-get update && apt-get -y install dnsmasq
cat > /etc/dnsmasq.d/docker <<EOF
no-resolv
server=8.8.8.8
server=8.8.4.4
EOF
echo "172.17.0.1 archive.ubuntu.com" >> /etc/hosts
service dnsmasq restart
```
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.