Merge pull request #4 from praekeltfoundation/cache-from

Build with Docker's new --cache-from
praekeltfoundation · Mar 7, 2017 · 6724867 · 6724867
2 parents 29df6a4 + c4e96af
commit 6724867
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/.travis.yml b/.travis.yml
@@ -17,9 +17,11 @@ before_install:
 before_script:
   - image="praekeltfoundation/marathon-acme"
   - version="$(sed -nE 's/\s*marathon-acme\s*==\s*([^\s\;]+).*/\1/p' requirements.txt)"
+  # Pull the existing image to use as a build cache
+  - docker pull "$image:$version"
 
 script:
-  - docker build --tag "$image" .
+  - docker build --pull --cache-from "$image:$version" --tag "$image" .
   - ./test.py "$image"
 
 after_script: