Redeploy stack in Docker Cloud synchronously. Great for redeploying in Jenkins and other build systems and provides relevant output.

docker-cloud-sync-redeploy.sh

#!/bin/bash
#############################################################
# This script depends on docker.
# simply run ./docker-cloud-sync-redeploy.sh <stack name>
#############################################################
set -e

STATE_RUNNING='Running'
STATE_NOT_RUNNING='Not running'
STATE_STARTING='Starting'
STATE_REDEPLOYING='Redeploying'

docker-cloud() {
  docker run -v ~/.docker:/root/.docker:ro --rm dockercloud/cli "$@"
}
state() {
  docker-cloud stack inspect $1 | grep -q "\"state\": \"$2\""
}

# get passed stack
if [ -z "$1" ]; then
  echo 'error: no stack name passed'
  echo "run the command as: ./docker-cloud-sync-redeploy.sh <stack name>"
  exit 1
fi

dc_env="$1"

# redeploy stack
echo "redeploying $dc_env ..."
docker-cloud stack redeploy $dc_env

# wait until deployment is complete
echo 'Waiting for deployment to finish...'
while state $dc_env "$STATE_REDEPLOYING" || state $dc_env "$STATE_STARTING"; do
  docker-cloud stack inspect $dc_env | grep state
  sleep 1
done;

# show relevant output depending on results
if state $dc_env "$STATE_RUNNING"; then
  echo "Deployment is successful! :)"
  exit 0
else
  echo "Failed to deploy image"
  docker-cloud stack inspect $dc_env
  exit 1
fi