Add initial CircleCI build

.circleci/config.yml

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+version: 2
+jobs:
+  build:
+    docker:
+      - image: circleci/golang:latest
+        environment:
+          HUGO_VERSION: "0.53"
+          S3DEPLOY_VERSION: "2.3.0"
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - install-v1-{{ checksum ".circleci/config.yml" }}
+            - install-v1-
+      - run:
+          name: Make bin folder
+          command: mkdir -p $HOME/bin
+      - run:
+          name: Install Hugo
+          command: ./deploy/ci-install-hugo.sh
+      - run:
+          name: Install s3deploy
+          command: ./deploy/ci-install-s3deploy.sh
+      - save_cache:
+          key: install-v1-{{ checksum ".circleci/config.yml" }}
+          paths:
+            - /home/circleci/bin
+      - run:
+          name: Hugo Build
+          command: $HOME/bin/hugo -v --destination workspace/public
+      - persist_to_workspace:
+          root: workspace
+          paths:
+            - public
+
+  deploy:
+    docker:
+      - image: circleci/golang:latest
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - install-v1-{{ checksum ".circleci/config.yml" }}
+            - install-v1-
+      - attach_workspace:
+          at: workspace
+      - run:
+          name: Deploy to S3
+          command: $HOME/bin/s3deploy -source=workspace/public/ -bucket=$BUCKET -region=$REGION
+
+workflows:
+  version: 2
+  build:
+    jobs:
+      - build
+      - deploy:
+          requires:
+            - build
+          filters:
+            branches:
+              only:
+                - ga-cf-templates

.s3deploy.yml

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+routes:
+    - route: "^.+\\.(js|css|svg|ttf|png|jpg)$"
+      #  cache static assets for 20 years
+      headers:
+         Cache-Control: "max-age=630720000, no-transform, public"
+      gzip: true
+    - route: "^.+\\.(html|xml|json|js)$"
+      gzip: true

deploy/ci-install-hugo.sh

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+HUGO_DOWNLOAD=hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz
+
+set -x
+set -e
+
+# Install Hugo if not already cached or upgrade an old version.
+if [ ! -e $HOME/bin/hugo ] || ! [[ `$HOME/bin/hugo version` =~ v${HUGO_VERSION} ]]; then
+  wget https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/${HUGO_DOWNLOAD}
+  tar xvzf ${HUGO_DOWNLOAD} hugo
+  mv hugo $HOME/bin/hugo
+fi

deploy/ci-install-s3deploy.sh

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+S3DEPLOY_DOWNLOAD=s3deploy_${S3DEPLOY_VERSION}_Linux-64bit.tar.gz
+
+set -x
+set -e
+
+# Install s3deploy if not already cached or upgrade an old version.
+if [ ! -e $HOME/bin/s3deploy ] || ! [[ `$HOME/bin/s3deploy -V` =~ ${S3DEPLOY_VERSION} ]]; then
+  wget https://github.com/bep/s3deploy/releases/download/v${S3DEPLOY_VERSION}/${S3DEPLOY_DOWNLOAD}
+  tar xvzf ${S3DEPLOY_DOWNLOAD} s3deploy
+  mv s3deploy $HOME/bin/s3deploy
+fi