Add a real deploy step

.circleci/config.yml

@@ -38,10 +38,10 @@ jobs:
           command: docker build -t mozilla/ci-base-<< parameters.imageName >> << parameters.imageName >>/
 
       - run:
-          name: Dummy Deploy
+          name: Deploy
           command: |
             if [ "${CIRCLE_BRANCH}" == "master" ]; then
-              echo TODO implement deployment of << parameters.imageName >>
+              ./bin/push-image.sh mozilla/ci-base-<< parameters.imageName >>
             fi
 
 workflows:

bin/push-image.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -eu
+
+image=$1
+
+# Usage: retry MAX CMD...
+# Retry CMD up to MAX times. If it fails MAX times, returns failure.
+# Example: retry 3 docker push "mozilla/normandy:$TAG"
+function retry() {
+    max=$1
+    shift
+    count=1
+    until "$@"; do
+        count=$((count + 1))
+        if [[ $count -gt $max ]]; then
+            return 1
+        fi
+        echo "$count / $max"
+    done
+    return 0
+}
+
+echo "$DOCKER_PASSWORD" | docker login --username="$DOCKER_USERNAME" --password-stdin
+
+versioned="${image}:latest"
+docker tag "${image}" "${versioned}" || (echo "Couldn't re-tag ${image} as ${versioned}" && false)
+retry 3 docker push "${versioned}" || (echo "Couldn't push ${versioned}" && false)
+
+echo "Pushed ${versioned}"