CI: test building image in test_build job; use bundler 2.0

.gitlab-ci.yml

@@ -42,6 +42,9 @@ test_build:
     - bundle exec rake db:create && bundle exec rake db:schema:load && bundle exec rake db:migrate
     - bundle exec ruby tests/tests.rb || { echo -e "Tests failed..\n Sleeping for an hour to debug."; sleep 3600; exit 1; }
     - echo "Tests passed!"
+    - docker pull blockstream/satellite-api:latest
+    - docker build --cache-from blockstream/satellite-api:latest -t blockstream/satellite-api:latest .
+    - docker rmi blockstream/satellite-api:latest || true
 
 # Run tests and build docker images
 build:

Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine@sha256:b3dbf31b77fd99d9c08f780ce6f5282aba076d70a513a8be859d8d3a4d0c92b8
+FROM alpine@sha256:c40c013324aa73f430d33724d8030c34b1881e96b23f44ec616f1caf8dbf445f
 
 ENV RUBY_PACKAGES ruby ruby-io-console ruby-irb ruby-rake ruby-bundler ruby-bigdecimal ruby-json
 ENV RUBY_DEPS libstdc++ tzdata bash ca-certificates openssl sqlite sqlite-dev

Gemfile.lock

@@ -71,4 +71,4 @@ DEPENDENCIES
   sqlite3
 
 BUNDLED WITH
-   1.17.1
+   2.0.0