chore: add drone file (#1)

Reviewed-on: #1

.drone.yml

@@ -0,0 +1,32 @@
+---
+kind: pipeline
+type: docker
+name: default
+environment:
+  CI_REGISTRY: "git.valvin.fr"
+  CI_REGISTRY_USER: "valvin"
+  CI_REGISTRY_IMAGE: "git.valvin.fr/valvin/gemini-agate-image"
+  IMAGE_TAG: "latest"
+
+steps:
+- name: test_build_image
+  image: gcr.io/kaniko-project/executor:v1.7.0-debug
+  commands:
+  - echo "testing build image without push"
+  - /kaniko/executor --context $DRONE_WORKSPACE --dockerfile Dockerfile --destination $CI_REGISTRY_IMAGE:$IMAGE_TAG --no-push
+  when:
+    event:
+    - pull_request
+- name: build_image_and_push
+  image: gcr.io/kaniko-project/executor:v1.7.0-debug
+  commands:
+  - echo "init registry credentials"
+  - echo $DRONE_WORKSPACE
+  - mkdir -p /kanico/.docker
+  - echo "{\"auths\":{\"$CI_REGISTRY\":{\"username\":\"$CI_REGISTRY_USER\",\"password\":\"$CI_REGISTRY_PASSWORD\"}}}" > /kaniko/.docker/config.json
+  - /kaniko/executor --context $DRONE_WORKSPACE --dockerfile Dockerfile --destination $CI_REGISTRY_IMAGE:$IMAGE_TAG
+  when:
+    branch:
+    - main
+    event:
+    - push