Initial commit for Postgres Operator UI (#613)

* Initial commit for our basic Postgres Operator UI:
 * Create and modify Postgres manifests
 * Watch Operator Logs in the UI
 * Observe cluster creation progress
 * S3 Backup browser for clone and restore

Many thanks to Manuel Gomez and Jan Mussler for the initial UI work a long time ago!

delivery.yaml

@@ -57,3 +57,38 @@ pipeline:
             fi
             export IMAGE
             make push
+
+    - id: build-operator-ui
+      type: script
+
+      commands:
+        - desc: 'Prepare environment'
+          cmd: |
+            apt-get update
+            apt-get install -y build-essential
+
+        - desc: 'Compile JavaScript app'
+          cmd: |
+            cd ui
+            make appjs
+
+        - desc: 'Build and push Docker image'
+          cmd: |
+            cd ui
+            image_base='registry-write.opensource.zalan.do/acid/postgres-operator-ui'
+            if [[ "${CDP_TARGET_BRANCH}" == 'master' && -z "${CDP_PULL_REQUEST_NUMBER}" ]]
+            then
+              image="${image_base}"
+            else
+              image="${image_base}-test"
+            fi
+            image_with_tag="${image}:c${CDP_BUILD_VERSION}"
+
+            if docker pull "${image}"
+            then
+              docker build --cache-from="${image}" -t "${image_with_tag}" .
+            else
+              docker build -t "${image_with_tag}" .
+            fi
+
+            docker push "${image_with_tag}"