cmd/juju: juju bootstrap --upload-tools on a fresh environment triggers upgrade mode

[Dave Cheney]

This expected use case now fails because juju enters upgrade mode when bootstrapping with locally generated tools

lucky(~/src/github.com/juju/juju) % juju bootstrap -v --upload-tools
uploading tools for series [precise trusty]
Launching instance
 - i-6a591254
Waiting for address
Attempting to connect to ec2-54-206-184-73.ap-southeast-2.compute.amazonaws.com:22
Attempting to connect to ip-10-251-31-237.ap-southeast-2.compute.internal:22
Attempting to connect to 54.206.184.73:22
Attempting to connect to 10.251.31.237:22
Logging to /var/log/cloud-init-output.log on remote host
Installing add-apt-repository
Adding apt repository: deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/cloud-tools main
Running apt-get update
Running apt-get upgrade
Installing package: curl
Installing package: cpu-checker
Installing package: bridge-utils
Installing package: rsyslog-gnutls
Fetching tools: curl -sSfw 'tools from %{url_effective} downloaded: HTTP %{http_code}; time %{time_total}s; size %{size_download} bytes; speed %{speed_download} bytes/s ' --retry 10 -o $bin/tools.tar.gz 'https://s3-ap-southeast-2.amazonaws.com/juju-syd-en-ee-ii/tools/releases/juju-1.21-alpha1.1-precise-amd64.tgz?AWSAccessKeyId=AKIAJ4SOKUWG25EDMAOA&Expires=1723949529&Signature=H2LAwDAU2OhuZY91hZr3d4mDU4A%3D'
Bootstrapping Juju machine agent
Starting Juju machine agent (jujud-machine-0)
lucky(~/src/github.com/juju/juju) % juju deploy cs:mysql
juju deploy cs:wordpress
juju add-relation wordpress mysql
ERROR upgrade in progress - Juju functionality is limited
lucky(~/src/github.com/juju/juju) % juju deploy cs:wordpress
ERROR upgrade in progress - Juju functionality is limited
lucky(~/src/github.com/juju/juju) % juju add-relation wordpress mysql
ERROR upgrade in progress - Juju functionality is limited

http://paste.ubuntu.com/8076553/

Shows that there was a 45 second delay after bootstrap returned with a successful return code where the environment would not accept commands.

This is going to break people who have scripted their juju bootstraps and deployments.