switch to kaniko

.gitlab-ci.yml

 stages:
   - build
 
-image: docker:latest
-
-services:
-  - name: docker:dind
-    command: [ "--insecure-registry=registry.cslab" ]
-
-before_script:
-  - docker info
-
 build:
   stage: build
+  image:
+    name: gcr.io/kaniko-project/executor:debug
+    entrypoint: [""]
   script:
-    - docker build
-        --tag registry.cslab/prometheus/apcupsd-exporter:latest
-        .
-    - docker push registry.cslab/prometheus/apcupsd-exporter:latest
-  tags:
-    - dind
+    - /kaniko/executor
+        --insecure
+        --skip-tls-verify
+        --context $CI_PROJECT_DIR
+        --dockerfile $CI_PROJECT_DIR/Dockerfile
+        --destination $CI_REGISTRY/prometheus/apcupsd-exporter:latest