2018-01-09 18:57:14 +00:00
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### Addon-manager
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addon-manager manages two classes of addons with given template files in
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`$ADDON_PATH` (default `/etc/kubernetes/addons/`).
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- Addons with label `addonmanager.kubernetes.io/mode=Reconcile` will be periodically
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reconciled. Direct manipulation to these addons through apiserver is discouraged because
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addon-manager will bring them back to the original state. In particular:
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- Addon will be re-created if it is deleted.
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- Addon will be reconfigured to the state given by the supplied fields in the template
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file periodically.
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- Addon will be deleted when its manifest file is deleted from the `$ADDON_PATH`.
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- Addons with label `addonmanager.kubernetes.io/mode=EnsureExists` will be checked for
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existence only. Users can edit these addons as they want. In particular:
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- Addon will only be created/re-created with the given template file when there is no
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instance of the resource with that name.
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- Addon will not be deleted when the manifest file is deleted from the `$ADDON_PATH`.
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Notes:
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- Label `kubernetes.io/cluster-service=true` is deprecated (only for Addon Manager).
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In future release (after one year), Addon Manager may not respect it anymore. Addons
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have this label but without `addonmanager.kubernetes.io/mode=EnsureExists` will be
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treated as "reconcile class addons" for now.
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- Resources under `$ADDON_PATH` need to have either one of these two labels.
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Otherwise it will be omitted.
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- The above label and namespace rule does not stand for `/opt/namespace.yaml` and
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resources under `/etc/kubernetes/admission-controls/`. addon-manager will attempt to
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create them regardless during startup.
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#### How to release
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The `addon-manager` is built for multiple architectures.
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1. Change something in the source
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2. Bump `VERSION` in the `Makefile`
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3. Bump `KUBECTL_VERSION` in the `Makefile` if required
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4. Build the `amd64` image and test it on a cluster
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5. Push all images
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```console
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# Build for linux/amd64 (default)
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$ make push ARCH=amd64
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2018-03-06 22:33:18 +00:00
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# ---> staging-k8s.gcr.io/kube-addon-manager-amd64:VERSION
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# ---> staging-k8s.gcr.io/kube-addon-manager:VERSION (image with backwards-compatible naming)
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2018-01-09 18:57:14 +00:00
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$ make push ARCH=arm
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2018-03-06 22:33:18 +00:00
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# ---> staging-k8s.gcr.io/kube-addon-manager-arm:VERSION
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2018-01-09 18:57:14 +00:00
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$ make push ARCH=arm64
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2018-03-06 22:33:18 +00:00
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# ---> staging-k8s.gcr.io/kube-addon-manager-arm64:VERSION
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2018-01-09 18:57:14 +00:00
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$ make push ARCH=ppc64le
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2018-03-06 22:33:18 +00:00
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# ---> staging-k8s.gcr.io/kube-addon-manager-ppc64le:VERSION
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2018-01-09 18:57:14 +00:00
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$ make push ARCH=s390x
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2018-03-06 22:33:18 +00:00
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# ---> staging-k8s.gcr.io/kube-addon-manager-s390x:VERSION
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2018-01-09 18:57:14 +00:00
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```
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If you don't want to push the images, run `make` or `make build` instead
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[]()
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