Gluon contains an automatic update system which can be configured in the site configuration.
By default, the autoupdater is disabled (as it is usually not helpful to have unexpected updates during development), but it can be enabled by setting the variable GLUON_BRANCH when building to override the default branch set in the set in the site configuration.
A manifest file for the updater can be generated with make manifest. A signing script (using ecdsautils) can by found in the contrib directory. When creating the manifest, GLUON_PRIORITY can be set on the command line, or it can be taken from the site.mk.
The priority defines the maximum number of days that may pass between releasing an update and installation of the images. The update probability with start at 0 after the release time mentioned in the manifest and then slowly rise to 1 after the number of days given by the priority has passed.
The priority may be an integer or a decimal fraction.
A fully automated nightly build could use the following commands:
git pull (cd site && git pull) make update make clean make -j5 GLUON_BRANCH=experimental make manifest GLUON_BRANCH=experimental contrib/sign.sh $SECRETKEY images/sysupgrade/experimental.manifest rm -rf /where/to/put/this/experimental cp -r images /where/to/put/this/experimental ln -s experimental.manifest /where/to/put/this/experimental/sysupgrade/manifest
We suggest to have following directory tree accessible via http:
firmware/ stable/ sysupgrade/ factory/ snapshot/ sysupgrade/ factory/ experimental/ sysupgrade/ factory/
The last level is generated by the Gluon build process. Do not forget to create symlinks from manifest to <branch>.manifest in the sysupgrade directories to allow upgrades from Gluon versions before 2014.3.
The server should be available via IPv6.
These commands can be used on a node.
# Update with some probability autoupdater
# Force update check, even when the updater is disabled autoupdater -f