feat: add aarch64 ci build

.gitlab-ci.yml

@@ -3,6 +3,7 @@ include:
 
 stages:
   - build
+  - deploy
   - trigger
 
 build:image:
@@ -10,15 +11,33 @@ build:image:
   parallel:
     matrix:
       - VARIANT: [ "", "-cachix", "-attic" ]
+        SYSTEM: [ "aarch64-linux", "x86_64-linux" ]
   image: nixpkgs/nix-flakes:latest
-  before_script:
-    - nix profile install nixpkgs#skopeo
-    - export PATH="$PATH:$HOME/.nix-profile/bin"
   script:
-    - nix build .#image${VARIANT}
-    - skopeo --insecure-policy copy  --dest-creds "${CI_REGISTRY_USER}:${CI_REGISTRY_PASSWORD}" --tmpdir /tmp
-      "docker-archive:result"
-      "docker://$CI_REGISTRY_IMAGE/nix-ci:${CI_COMMIT_BRANCH/main/latest}${VARIANT}"
-    - skopeo --insecure-policy copy --dest-creds "${CI_REGISTRY_USER}:${CI_REGISTRY_PASSWORD}" --tmpdir /tmp
-      "docker-archive:result"
-      "docker://$CI_REGISTRY_IMAGE/nix-ci:$(date +"%m-%d-%y")${VARIANT}"
+    - nix build .#image${VARIANT} --system $SYSTEM
+    - mkdir -p build
+    - install result build/image-${VARIANT}-${SYSTEM}
+  artifacts:
+    paths:
+      - build/image-${VARIANT}-${SYSTEM}
+
+deploy:image:
+  stage: deploy
+  image: nixpkgs/nix-flakes:latest
+  parallel:
+    matrix:
+      - VARIANT: [ "", "-cachix", "-attic" ]
+  before_script:
+    - nix profile install nixpkgs#buildah
+    - export PATH="$PATH:$HOME/.nix-profile/bin"
+    - export REGISTRY_AUTH_FILE=${HOME}/auth.json
+    - echo "$CI_REGISTRY_PASSWORD" | buildah login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
+    - mkdir -p /etc/containers && echo '{"default":[{"type":"insecureAcceptAnything"}]}' > /etc/containers/policy.json
+  script:
+    - buildah manifest create localhost/image${VARIANT} \
+        docker-archive:build/image${VARIANT}-aarch64-linux \
+        docker-archive:build/image${VARIANT}-x86_64-linux
+    - buildah manifest push --all localhost/image${VARIANT} \
+        docker://${CI_REGISTRY_IMAGE}/nix-ci:${CI_COMMIT_SHORT_SHA}${VARIANT}
+    - buildah manifest push --all localhost/image${VARIANT} \
+        docker://${CI_REGISTRY_IMAGE}/nix-ci:${CI_COMMIT_BRANCH/main/latest}${VARIANT}