Initial version of upup: cloudup & nodeup

* GCE support only
* Key and secret generation
* "Direct mode" makes API calls
* "Dry run mode" previews the changes
* Terraform output (though key generation not working for master ip)
* cloud-init output (though debian image does not ship with cloud-init)

Author: justinsb

upup/.gitignore

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+vendor/
+.build/

upup/DEVELOP.md

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+Random scribblings useful for development...
+
+
+## Developing nodeup
+
+ssh ${HOST} sudo mkdir -p /opt/nodeup/state
+ssh ${HOST} sudo chown -R ${USER} /opt/nodeup
+
+go install k8s.io/kube-deploy/upup/... && rsync ~/k8s/bin/nodeup ${HOST}:/opt/nodeup/nodeup && rsync --delete -avz trees/ ${HOST}:/opt/nodeup/trees/ \
+&& rsync state/node.yaml ${HOST}:/opt/nodeup/state/node.yaml \
+&& ssh ${HOST} sudo /opt/nodeup/nodeup --v=2  --template=/opt/nodeup/trees/nodeup --state=/opt/nodeup/state --tags=kubernetes_pool,debian_family,gce,systemd
+
+
+# Random misc
+
+Extract the master node config from a terraform output
+
+cat tf/k8s.tf.json | jq -r '.resource.google_compute_instance["kubernetes-master"].metadata.config' > state/node.yaml
+
+
+
+TODOS
+======
+
+* Implement number-of-tags prioritization
+* Allow files ending in .md to be ignored.  Useful for comments.
+* Better dependency tracking on systemd services?
+* Automatically use different file mode if starts with #! ?
+* Support .static under files to allow for files ending in .template?
+* How to inherit options
+* Allow customization of ordering?  Maybe prefix based.
+* Cache hashes in-process (along with timestamp?) so we don't hash the kubernetes binary bundle repeatedly
+* Fix the fact that we hash assets twice
+* Confirm that we drop support for init.d
+* Can we just use JSON custom marshalling instead of all our reflection stuff (or at least lighten the load)
+
+* Do we officially publish https://storage.googleapis.com/kubernetes-release/release/v1.2.2/kubernetes-server-linux-amd64.tar.gz (ie just the server tar.gz)?
+
+* Need to start docker-healthcheck once
+
+* Can we replace some or all of nodeup config with pkg/apis/componentconfig/types.go ?
+