[gnome-nightly-oci] Restrict the builders to use the aws machines.

[Jordan Petridis <jpetridis src gnome org>]

commit be93194bfc269ab63e5bbd10e26a827ac52ff2f3
Author: Jordan Petridis <jordanpetridis protonmail com>
Date:   Thu Apr 26 21:14:52 2018 +0300

    Restrict the builders to use the aws machines.
    
    Uploadign images needs a big upload bandwith.

 .gitlab-ci.yml | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 1a0bb8c..ed8e3c4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,6 +9,8 @@ stages:
 # Expects $IMAGE which should be the name+tag of the registry image.
 # Expects $OCI_YML variable which should be the path to the dockerfile
 .base_template: &base_build
+    tags:
+        - aws
     script:
         - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
         - docker build --pull -f ${OCI_YML} -t ${IMAGE} .