setting before_script per task

.gitlab-ci.yml

@@ -8,9 +8,6 @@ stages:
  - rootfs
  - torrent
 
-before_script:
-  - apk add --no-cache ansible mktorrent
-
 prepare:
   variables:
     ZIPFILE: packer_${PACKER_VERSION}_linux_amd64.zip
@@ -30,6 +27,8 @@ packer:
   stage: rootfs
   services:
    - docker:dind
+  before_script:
+   - apk add --no-cache ansible
   script:
    - bin/packer build packer.json
    - gzip -k -f rootfs.tar
@@ -52,6 +51,8 @@ mktorrent:
   variables:
     ANNOUNCE: udp://tracker.sbruder.de:6969/announce
     WEBSEED: http://10.2.2.1:8081/rootfs.tar.gz
+  before_script:
+   - apk add --no-cache mktorrent
   script:
    - mktorrent -a "$ANNOUNCE" -o rootfs.torrent -l 22 -w "$WEBSEED" rootfs.tar.gz
   artifacts: