Tag jobs more precisely

.gitlab-ci.yml

@@ -10,8 +10,6 @@ variables:
 
 .build:
   stage: build
-  tags:
-    - docker
   script:
     - |
       CONTAINER_IMAGE="$CONTAINER_IMAGE_BASE/$IMAGE"
@@ -25,43 +23,70 @@ build-linters:
   extends: .build
   variables:
     IMAGE: linters
+  tags:
+    - docker
+    - x86_64-linux
 
 build-aarch64-linux-deb9:
   extends: .build
   variables:
     IMAGE: aarch64-linux-deb9
+  tags:
+    - docker
+    - aarch64-linux
 
 build-i386-linux-deb8:
   extends: .build
   variables:
     IMAGE: i386-linux-deb8
+  tags:
+    - docker
+    - x86_64-linux
 
 build-i386-linux-deb9:
   extends: .build
   variables:
     IMAGE: i386-linux-deb9
+  tags:
+    - docker
+    - x86_64-linux
 
 build-x86_64-freebsd:
   extends: .build
   variables:
     IMAGE: x86_64-freebsd
+  tags:
+    - docker
+    - x86_64-linux
 
 build-x86_64-linux-centos7:
   extends: .build
   variables:
     IMAGE: x86_64-linux-centos7
+  tags:
+    - docker
+    - x86_64-linux
 
 build-x86_64-linux-deb8:
   extends: .build
   variables:
     IMAGE: x86_64-linux-deb8
+  tags:
+    - docker
+    - x86_64-linux
 
 build-x86_64-linux-deb9:
   extends: .build
   variables:
     IMAGE: x86_64-linux-deb9
+  tags:
+    - docker
+    - x86_64-linux
 
 build-x86_64-linux-fedora27:
   extends: .build
   variables:
     IMAGE: x86_64-linux-fedora27
+  tags:
+    - docker
+    - x86_64-linux