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lxc-debian: don't hardcode valid releases

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This avoids the dance of updating the list of valid releases every time
Debian makes a new release.

It also fixes the following bug: even though lxc-debian will default to
creating containers of the latest stable by querying the archive, it
won't allow you to explicitly request `stable` because the current list
of valid releases don't include it.

Last, but not least, avoid hitting the mirror in the case the desired
release is one of the ones we know will always be there, i.e. stable,
testing, sid, and unstable.

Signed-off-by: Antonio Terceiro <terceiro@debian.org>
This commit is contained in:
Antonio Terceiro 2017-10-28 09:20:35 -02:00
parent c99055ea6d
commit dba285d5df
1 changed files with 7 additions and 6 deletions
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13
templates/lxc-debian.in
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@ -768,12 +768,13 @@ if [ -n "$authkey" ]; then
fi
fi
current_release=$(wget "${MIRROR}/dists/stable/Release" -O - 2> /dev/null | head |awk '/^Codename: (.*)$/ { print $2; }')
release=${release:-${current_release}}
valid_releases=('wheezy' 'jessie' 'stretch' 'buster' 'testing' 'sid' 'unstable')
if [[ ! "${valid_releases[*]}" =~ (^|[^[:alpha:]])$release([^[:alpha:]]|$) ]]; then
echo "Invalid release ${release}, valid ones are: ${valid_releases[*]}"
exit 1
release=${release:-stable}
permanent_releases=('stable' 'testing' 'sid' 'unstable')
if [[ ! "${permanent_releases[*]}" =~ (^|[^[:alpha:]])$release([^[:alpha:]]|$) ]]; then
if ! wget "${MIRROR}/dists/${release}/Release" -O /dev/null 2> /dev/null; then
echo "Invalid release ${release} (not found in mirror)"
exit 1
fi
fi
# detect rootfs